The "Will This Seat Fit In My Car?" thread
 

Folks,

An often asked question when it comes to installing a race seat in one's car is "will this damn thing fit?" or "how do I make this damn thing fit?" You often don't want to be the first guy to try and put a seat in a Corvette, so you spend hours bouncing around the Internet to see who else has made it work. I myself have two customers having problems right now, one of whom is trying to stuff a seat with a 500mm base into a C7 with our mount with much consternation. I would have told him I don't think that's ever been done before had he mentioned it to me, but then again I haven't searched the internet for hours trying to find out.

SO, let's try and consolidate all of our seat mount data into one thread. That way anyone who's installing a seat will be able to look here to see if it was done and how it was done. I'm thinking if we can keep it in some set format it will make the data easier to peruse. Just copy and paste this into your response and fill in the blanks. Please see below:

Generation, Year, and Model:
Driver Seat:
Driver Mount:
Driver Sub Belt:
Passenger Seat:
Passenger Mount:
Passenger Sub Belt:
Harness Bar or Cage:
Interior?:
Carpet?:
Stock Belts in car?:
Driver:
Notes/Pics:



Simple enough? If there is anything anyone thinks should be added please let me know. I'll start first below. I think this will be a good way to take the guess work out of a lot of people's interior plans. I hate selling something to a customer and then they have issues because I can't possibly know everyone's setup.

Use as a quick reference to jump to posts:

C5's:

Mark @ AMT Motorsport - Sparco EVO II US Click Here
Work_Truck - Sparco Grid II Click Here
TMtraylor - OMP HTE-R 400Click Here
Duk007 - Sparco EVO II US Click Here
Dan H - Sparco EVO II US Click Here
JCarothers - Sparco Evo II Click Here
Chetly - OMP WRC-R Click Here
Heavy Zee - Ultrashield Road Race Click Here
Deputy Dangle - Recaro Pole Position Click Here
QuickShift C5 - Sparco Evo II Click Here
SnakeaterZ28 - Sparco Evo II US Click Here
Octagon8 - Sparco Alpha Click Here
JRitt@Essex - RaceTech 4009WTHR Click Here
Chet'sLS3 - Sparco Ergo Click Here
NoradIV - OMP First-R Click Here
Sub8 - Sparco Evo II Click Here
RX7Rob - Sparco Evo Click Here
smitty2919 - Corbeau Forza Click Here
Dan H. - OMP HTE-R 400 Click Here
Torque Obesessed - Sparco R100 Click Here
Mr Turco - Sparco QRT-R Click Here
C5 Golf Guy - Ultrashield 18" Rally Sport Click Here
Mark@AMT Motorsport - Sparco QRT-R Click Here
NSFW - Cobra Imola Click Here
Mark@AMT Motorsport - Sparco Circuit 2 - DID NOT FIT - Click Here
EZ Glider - Sabelt X Pad - Click Here
Kubs - Tillet B6 Screamer XL Click Here
Monarch - Braum Elite R - DID NOT FIT - Click Here
G_Loc - Sparco R100 Click Here
Savagetaco - MOMO Lesmo One XL - Click Here
Ubervic - Braum Elite S Click Here
Bort - Sparco QRT Evo L - Click Here
Schaumi - OMP Style - Click Here


C6's:

Mordeth - Sparco Ergo Medium Click Here
Dirk Miller - Cobra Evolution Halo Click Here
mp4659 - Sparco EVO II Click Here
Had3nuf - Sparco Evo II US Click Here
Charley Hoyt - Cobra Suzuka Wide Click Here
Blue_Z06 - OMP HTE-R 400 Click Here
'12GS - Sparco Ergo II Click Here
IBAUCLAPlaya - Racetech RT4009W Click Here
ttx350z - OMP Champ-R Click Here
Spaggs - Sparco EVO II Click Here
Andersnor - Sparco EVO II QRT - Click Here
BigMonkey73 - OMP WRC-R XL Click Here
Kenshin223 - OMP WRC-R XL Click Here
Jetbluu - Corbeau LG1 Click Here
Hamdog - Tillet B5 Carbon GRP Click Here
Turbo6TA - Recaro Speed-V Click Here
DaOtherOne - Sparco Evo QRT Click Here
MrZ06Man - Cobra Nogaro Click Here
Chukman - Corbeau RRX Click Here
72Greg - Omp Champ-R Click Here

C7's:

Fleming23 -OMP HTE-R 400 Click Here
badhabit_wb - Racetech 4119W Click Here
Mu$cle - OMP HTE-R 400 Click Here
JloZ06 - OMP HTE-R 400 Click Here
archfarseer - Recaro Profi SPG XL Click Here
ToolHoarder - Ultrashield 16" Pro Road Race Custom Click Here
Steve17GS - OMP HTE-R XL Click Here
96GS#007 - OMP HTE-R 400 Click Here
CSandy - Sparco Evo QRT L - Click Here
ReedGibson - Bride Xero VS - Click Here

C8's:

SPOHN - Racetech 4100WT w/30mm side inserts Click Here
Mark@AMT Motorsport - OMP HTE-R 400 Click Here

Generation, Year, and Model: C5 2004 Z06
Driver Seat: Sparco EVO II US
Driver Mount: AMT Ultralow
Driver Sub Belt: AMT Ultralow
Passenger Seat: None
Passenger Mount: None
Passenger Sub Belt: None
Harness Bar or Cage: Full Cage
Interior?: Completely stripped
Carpet?: None
Driver: 6', 33'' waist
Stock Belts in car?: No
Notes/Pics: Sparco EVO II US is basically jammed up against the transmission tunnel. Seat base is 440mm wide. I don't see how you could get a wider seat in a C5 without trimming the seat. This is also a race car only, and had I done it again I would have gotten the normal Sparco EVO II so it would be a little tighter on my hips.

Here's an install video with the Ultralow Mount and a Sparco QRT-R.

Generation, Year, and Model: 1999 FRC
Driver Seat: Sparco Grid II 2018
Driver Mount: Sparco Side Mount + ebay floor mount
Driver Sub Belt: Stock belts
Passenger Seat: Sparco Grid II 2018
Passenger Mount: Sparco Side Mount + ebay floor mount
Passenger Sub Belt: Stock belts
Harness Bar or Cage: None
Interior?: Full factory
Carpet?: Full factory
Stock Belts in car?: Yes
Driver: Very handsome, good sense of humor (6'1" 34" waist)
Notes/Pics: Had to trim lower belt cover for clearance between belt mechanism and seat.


https://cimg4.ibsrv.net/gimg/www.cor...f886e25253.png

couple more pictures here:
https://www.corvetteforum.com/forums...e-fact-13.html

Generation, Year, and Model: C5, 2003 Z06
Driver Seat: OMP - HTE-R 400
Driver Mount: MTI rails
Driver Sub Belt: Drilled the rails and mounted eye bolts
Passenger Seat: Sparco EVO II US
Passenger Mount: custom fab mounts (not adjustable and have the seat as far back as possible). 1/8" flat steel bent to make it work.
Passenger Sub Belt: A cross bar has eye bolts for the sub belts
Harness Bar or Cage: Cage now, but these were in place with a full interior too
Interior?: Not anymore, but these seats were in the car with a full interior (didn't use the stock seat belts)
Carpet?: gone
Stock Belts in car?: I used to swap race seat with OEM seats and used the stock belts..I quickly gave that up.
Driver: 5'11" - 35" waist ...205 lbs (does this racecar make me look fat???)

Notes/Pics:
Front of the drivers seat touches the tunnel. The driver seat is as far rearward and dropped down as far as it will go. I removed the rear factory seat studs and and replaced with a bolt pointing down. The nut is on underside of the car.



https://cimg6.ibsrv.net/gimg/www.cor...f407e227ae.jpg

Helmet space at a premium with the cage and padding



https://cimg7.ibsrv.net/gimg/www.cor...b84392306f.jpg

Looking down the backside of the driver seat. The black square bar is reinforcement for the seat mount location. The red belts are just the extra length that is not rolled up.


https://cimg8.ibsrv.net/gimg/www.cor...5ba5523bf6.jpg

Looking down at the driver side. You can see the bolt for the sub-anchor mounts that are bolted to the side of the seat rails.


https://cimg9.ibsrv.net/gimg/www.cor...948adf6e66.jpg

Front of driver seat touching the tunnel. It worked with a full interior too. The black square bar is reinforcement for the seat mounts the cage builder installed.

Generation, Year, and Model: 02 C5 Z06
Driver Seat: Sparco Evo II US
Driver Mount: Marrad seat base, Sparco side mounts
Driver Sub Belt: Teamtech
Passenger Seat:Sparco Evo II US
Passenger Mount: Marrad seat base, Sparco side mounts
Passenger Sub Belt:TeamTech
Harness Bar or Cage: Brey-Krause Bar
Interior?: Full Interior
Carpet?: Yes
Stock Belts in car?: No
Driver: 5'11 200-215 lbs
Notes/Pics: Seats and not trimmed, but carpet Padding is removed behind the carpet on the trans tunnel. Tight fit but it fits

Generation, Year, and Model: C7, 2016, Z06
Driver Seat: OMP HTE-R 400
Driver Mount: Marrad
Driver Sub Belt: Yes, tied to side rails with eye bolts & clip-in harnesses
Passenger Seat: n/a
Passenger Mount: n/a
Passenger Sub Belt: n/a
Harness Bar or Cage: Brey Krause Harness Bar
Interior?: Full
Carpet?: Yes
Stock Belts in car?: Not functional with race seat
Driver:
Notes/Pics: You loose power mirrors on an memory seat car when you disconnect driver seat plug. No adapters currently on market to override system.

https://cimg9.ibsrv.net/gimg/www.cor...458021fb82.jpg

https://cimg0.ibsrv.net/gimg/www.cor...03f8ed4467.jpg

Generation, Year, and Model: C6 2007 Z06
Driver Seat: Sparco Ergo Medium
Driver Mount: AMT
Driver Sub Belt: AMT
Passenger Seat: Sparco Ergo Medium
Passenger Mount: AMT
Passenger Sub Belt: AMT
Harness Bar or Cage: Brey Krause Harness Bar
Interior?: Yes
Carpet?: Yes
Stock Belts in car?: Yes but useless
Driver: 5'11" 180lbs, 32" waist
Notes/Pics: Perfect fit, no issues. It was so low that I actually raised it up. I bypassed the airbag connector so I don't get an annoying light and installed a harness to retain the tilt steering.


https://cimg7.ibsrv.net/gimg/www.cor...54d644eeb2.jpg



https://cimg0.ibsrv.net/gimg/www.cor...9b8469a7be.jpg


https://cimg2.ibsrv.net/gimg/www.cor...2501e29e20.jpg


https://cimg4.ibsrv.net/gimg/www.cor...43beb7b16a.jpg

Cobras in both C6 & ZO6
 

Generation, Year, and Model: '08C6 & '06ZO6
Driver Seat: Cobra Evolution with halo
Driver Mount: Marrad slider
Driver Sub Belt: Yes modified
Passenger Seat: Cobra Signature Pro
Passenger Mount: Sparco
Passenger Sub Belt: Modified
Harness Bar or Cage: Harness bar
Interior?: 3LT
Carpet?: OEM
Stock Belts in car?: only chest strap to fake out police
Driver: 5'10" 185 lbs
Notes/Pics:

Generation, Year, and Model: 2009 c6 z06
Driver Seat: Sparco Evo II
Driver Mount: custom floor mount by autosport fab for both driver and passenger seats.
Harness Bar or Cage: Fully caged.
Interior?: race car
Carpet?: no
Stock Belts in car?: no
Driver: 5' 8''.
Notes/Pics: while still a "street car" with full interior I used planted seat brackets. while they worked, headroom was very marginally for anyone taller then 5'8'' with a helmet on and lower seat cushion in place.

Great thread, thanks for starting it. Hoping to see some feedback on a sparco circuit II

Heres mine
Generation, Year, and Model: 2002 C5 Z06
Driver Seat: Sparco Evo II US
Driver Mount: MTI
Driver Sub Belt: Vetteworks
Passenger Seat: Sparco Evo II US
Passenger Mount: MTI
Passenger Sub Belt: Vetteworks
Harness Bar or Cage: Brey Krause Harness Bar
Interior?: Full Interior
Carpet?: Yes
Stock Belts in car?: No, the bottom reel by the door sill does not fit with the MTI rail and the seat mounted as low as possible
Driver: 6'1" 230# dad bod, need to get my ass on an elliptical.
Notes/Pics: Stock belts don't fit like mentioned above. BK Harness bar required modification, there is a bar that runs from the bar to the floor. The hole needs to be opened up for the stud extender to fit. Decent amount of interference from the vetteworks sub belt mount and the nut for the stud extender. A set of large crows foot wrenches (1" & 7/8") helped quite a bit.

Generation, Year, and Model: C6, 2005, base model
Driver Seat: Sparco EVO II US
Driver Mount:Sparco base, and Sparco aluminum side mount
Driver Sub Belt:Vetteworks,
Passenger Seat: Sparco EVO II US
Passenger Mount: Sparco base, and aluminum side mounts
Passenger Sub Belt: Vetteworks
Harness Bar or Cage:Vetteworks sharkbar
Interior?: yes
Carpet?: yes
Stock Belts in car?: no
Driver: 6'0" 230 lbs. 38" waste
https://cimg0.ibsrv.net/gimg/www.cor...0f16bc2266.jpg

Notes/Pics:
https://cimg1.ibsrv.net/gimg/www.cor...8bcb74846a.jpg

https://cimg2.ibsrv.net/gimg/www.cor...ef79ac88f9.jpg

Generation: C6, Year: 2008, and Model: Z51 Widebody
Driver Seat: Cobra Suzuka (wide model
Driver Mount: Arizen slide mount
Driver Sub Belt: Arizen
Passenger Seat: Stock
Passenger Mount: Stock
Passenger Sub Belt: None
Harness Bar or Cage: yes
Interior?: Full
Carpet?: Yes
Stock Belts in car?: Not when racing seat was being used.
Driver: 6’ tall, 245 lbs, 38” wait
Notes/Pics: This was in a duel use car where I used the stock drivers seat / belt for daily driving and put the seat and 6 point harness for track days. It only took about ten minutes to make the swap.

Note that the roll bar and shoulder harness wasn’t installed for these pictures
Charley

http://i200.photobucket.com/albums/a...t/IMG_1815.jpg

http://i200.photobucket.com/albums/a...t/IMG_1813.jpg

http://i200.photobucket.com/albums/a...t/IMG_1808.jpg

http://i200.photobucket.com/albums/a...t/IMG_1810.jpg

http://i200.photobucket.com/albums/a...yt/image-4.jpg

http://i200.photobucket.com/albums/a...yt/image-5.jpg


http://i200.photobucket.com/albums/a...yt/image-6.jpg


Here is how I simulated the seat so the air bag would work for the trip to the track. I used Vetteworks Simulators. But, the normal installation requires pulling the stock harness out of the stock seat. To make the switch out easier I ordered a replacement seat harness from one of the forum vendors. Seat harnesses can be ordered two ways....with heat and memory....or without. The harness without heat and memory is only. In addition to the harness you will need three plug in simulators (two for pre '08 cars). One simulator is for the seat airbag, the second is for the seat position sensor, the third (for '08+ cars) is for the seat belt pretensioner.

Here is a picture of the three simulators. The two yellow simulators (airbag and pretensioner)fit together and make one plug. The black plug attaches to the harness and simulates the seat position sensor.

http://i200.photobucket.com/albums/a...t/IMG_1954.jpg

Here is a picture of the harness (without heat and memory).
http://i200.photobucket.com/albums/a...t/IMG_1797.jpg

Here is a picture of how I modified the harness. You only need the pink and green wires going to the seat position sensor (or simulator in this case)

http://i200.photobucket.com/albums/a...t/IMG_1953.jpg


This is what the seat area looks like with no seat. The yellow plug is for the seat airbag (and pretensioner in '08+ cars). This is where the two yellow simulators plug in. The wide black plug is where the harness plugs in for the seat track simulator. The black simulator plugs into the other end of the harness.

http://i200.photobucket.com/albums/a...t/IMG_1504.jpg


This is the only picture that I have that shows how the shoulder harness was installed. This was Mick Fleetwood driving my car.... not me. ( petty bar was not installed at the time).

http://i200.photobucket.com/albums/a...t/IMG_1516.jpg

Generation, Year, and Model: C6, 2008 Z06
Driver Seat: OMP HTE-R 400
Driver Mount: MTI Racing
Driver Sub Belt: Yes, eyebolts through seat rails
Passenger Seat: Corbeau FX1
Passenger Mount: Custom
Passenger Sub Belt: Eyebolts
Harness Bar or Cage: N/A
Interior?: Yes
Carpet?: Yes
Stock Belts in car?: No
Driver: 6ft , 235 lbs, 38 waist
Notes/Pics:

Generation, Year, and Model:. 2004 C5Z
Driver Seat: OMP WRC-R
Driver Mount: modified planted base, sparco slider, planted sideplates
Driver Sub Belt: custom
Passenger Seat: stock
Passenger Mount: stock
Passenger Sub Belt: n/a
Harness Bar or Cage: Brey Krause
Interior?: Complete w/padding under carpet
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 5'8" & husky
Notes/Pics: pics uploaded later

https://cimg0.ibsrv.net/gimg/www.cor...4b94e7952c.jpg
https://cimg6.ibsrv.net/gimg/www.cor...ff32c0f117.jpg
https://cimg6.ibsrv.net/gimg/www.cor...b33464d3ad.jpg
https://cimg7.ibsrv.net/gimg/www.cor...007d74c40e.jpg
I started a thread in the z06 section. It's here https://www.corvetteforum.com/forums...post1596815858
I'm pretty sure I'm the reason Mark started this thread. I sent him pics in the beginning and it didn't look like it was going to work out.
Generation, Year, and Model: C7 2015 z06
Driver Seat:Ractech 4119w
Driver Mount:AMT
Driver Sub Belt:AMT
Passenger Seat:Racetech 4119w
Passenger Mount:AMT
Passenger Sub Belt:AMT
Harness Bar or Cage: BK Harness Bar
Interior?:Yes
Carpet?:Yes
Stock Belts in car?:No/ 6 point Racetech harness
Driver:6"3" 225 lbs.
Notes/Pics:
I'll add pics later
Tight fit but I got it to work.

Generation, Year, and Model: C5 2000 FRC
Seats: Ultrashield Roadrace Halo 20’ degree layback, tall set up, 16” seat.
Driver Mount: Custom - Bolted to custom floor brackets - welded between frame and torque tube tunnel
Driver Sub Belt: 6 pt Race Quip 6-Point Euro Style HANS/HNR Harness

Harness Bar or Cage: Full Cage road race car
Interior?: none
Carpet?: none
Stock Belts in car?: none
Driver: 6' 1" 190 lbs
Notes/Pics:


https://cimg1.ibsrv.net/gimg/www.cor...52fdf6792d.jpg






https://cimg1.ibsrv.net/gimg/www.cor...287db1db2c.jpg

Curious how you were able to route the stock seatbelt on the Grid II through the outboard lap belt hole? Did not realize the retractor could fit through.

Generation, Year, and Model: C6
Driver Seat: Sparco Ergo II
Driver Mount: AMT Ultralow Seat Mount
Driver Sub Belt: AMT Ultralow Seat Mount
Passenger Seat: Sparco Evo II
Passenger Mount: AMT Ultralow Seat Mount
Passenger Sub Belt: AMT Ultralow Seat Mount
Harness Bar or Cage: Sharkbar Harness Bar
Interior?: Full Interior
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 6'3" 38" waist
Notes/Pics: This seat is the absolute tallest seat you will fit in a C6. It is touching both the floor and the roof. It absolutely will not install in a C6Z or other fixed roof C6s. I had to remove the roof to be able to drop the mount onto the studs. Other than seat height, it fits perfectly in the car. About 1/4" clearance to the door panel, and no transmission tunnel issues, other than it being so tight to the tunnel that it is difficult to use the factory 3 point (required for state inspection, never actually used otherwise). I will try to get some pictures later. If I forget and someone comments to remind me, I will definitely upload them.

Also, I found a great solution for installing the 3 point into the C6 (and I'm sure the C5 and C7 as well if they use the same belt). As many of you may know, the seatbelt receiver that is attached to the stock seats has a bunch of crap attached to the side of it that would make it impossible to install next to a fixed back seat. I found that the receiver out of the back seat of '05-'14 Mustangs works perfect as a replacement and is much smaller and more convenient! It won't get rid of your airbag light, but it will help you pass inspection if needed.

Generation, Year, and Model: 2001 C5 ZO6
Driver Seat: Sparco EVO II
Driver Mount: AMT Motorsport
Driver Sub Belt: AMY Motorsport
Passenger Seat: Sparco EVO II US
Passenger Mount: AMT Motorsport
Passenger Sub Belt: AMT Motorsport
Harness Bar or Cage: Brey-Krause
Interior?: Yes
Carpet?: Yes
Stock Belts in car?: No
Driver: 6ft, 185lbs, 33in waist
Notes/Pics: Had use 2 washers under the AMT brackets to clear the dip in the floor pan and get the mounting level of the brackets even with the floor. Used 1 extremely long stud on the rear outside for each seat so there was enough thread engagement with the BK stabilizer bar bracket added in to the stack. Had to cut the BK stabilizer bar bracket in 2 pieces and weld it back together so it would go OVER the AMT seat bracket (it normally goes down the dip in the floor pan to the OEM studs) since it wouldn't clear the AMT bracket if underneath. Drilled the BK stabilizer bar bracket wider to clear the larger seat studs. Removed carpet padding from behind carpet on trans tunnel. Cut 1/2"-3/4" off the inside corner of both seats so they would face forward better (driver side is still at a slight angle) when jammed against the trans tunnel. Staggered the AMT brackets when I mounted them to the seat and shimmed them so the fronts would get more square (the seats are narrower at the back, causing the brackets to splay wide in the front).

That's what was needed just to get the seats to fit in the car, mounted, and mostly facing straight forward. The belts, seat height/angle relative to the harness bar, etc were a whole different puzzle, which I don't think is part of the scope of this thread. I can go into that if anyone is interested or shoot me a PM.

https://cimg2.ibsrv.net/gimg/www.cor...9ccaf7a4b0.jpg

Generation, Year, and Model:01 C5Z
Driver Seat: Sparco Evo II US
Driver Mount: AMT Ultralow
Driver Sub Belt: AMT Ultralow
Passenger Seat:Sparco Evo II US
Passenger Mount:Same
Passenger Sub Belt:Same
Harness Bar or Cage: Ridetech Harness Bar
Interior?:Full
Carpet?: Yes
Stock Belts in car?: No
Driver: 6'1, 200lbs 34inch waist
Notes/Pics: Originally had a Bray Kraus Harness bar, but when installing seats the bar sat too high. Very happy with the Ridetech harness bar. I also had to use their lap belt bracket on both seats. It was extremely tight getting the AMT mounts, Seats, stud extenders and lap belt bracket to align up. I think if I pulled the interior it would have been easier, but my car it proof you can do it and keep your full interior. With the Evo II's and Marks great Ultralow mount I have gained a good 3 inches of head room. I can put my helmet on and not have it touch the roof. As Borat would say.. "Great Sucess"

Generation, Year, and Model: C5 Zo6
Driver Seat: Sparco Alpha
Driver Mount: AMT Ultralow Seat Mount
Driver Sub Belt: AMT Ultralow Seat Mount
Passenger Seat: Stock
Passenger Mount:
Passenger Sub Belt:
Harness Bar or Cage: Brey Kraus
Interior?: Full Interior
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 5'10" 40" waist
Notes/Pics:Pics to come and some minor changes to lap belt mounting and factory buckle.

I mounted the Sparco Alpha after getting the AMT seat mount. The install went smoothly with the AMt mounts proving plenty of adjustment for fore and aft with the main holes and slot on the floor rails as well as minor adjustment using the holes in the brackets. It also allows for adjusting rake/angle. The seat mount and hardware were top notch and super high quality fit and finish. The seat is supposed to be the new replacement for the Evo II US which I tried ordering through several companies and had a friend contact multiple distributors without success for one. The dimensions are very similar to the Evo II US in every area but it has a fraction smaller base and wider shoulder wings. It touches the center trans tunnel on the front edge and along the side until the lap belt area. In a non Zo6 it may be even tighter. The shoulder support wings are close to the door panel but not touching.

https://cimg3.ibsrv.net/gimg/www.cor...b9b262e23a.jpg
https://cimg1.ibsrv.net/gimg/www.cor...c8ea121284.jpg
https://cimg8.ibsrv.net/gimg/www.cor...9da2805976.jpg
https://cimg4.ibsrv.net/gimg/www.cor...fd5d05e3e3.jpg

I used mounts that the previous owner used to mount the lap belt. It is 2 brackets that mount to the rear seat studs and then uses a locking chain link/carabiner like mount to mount lap belt ends to the link. I plan on mounting the lap belt ends directly to the seat rails as this should be a simpler,less complicated and stringer mounting method. It also won't rattle and frees up the rear mount studs making it easier to install the rear nuts.

So far I am very happy with the seat for fit,support and comfort but need more time to give a full endorsement. I am very happy with the AMT seat mount and the service I had with AMT and with US Race Gear where I bought the seat.

I forgot to mention I used a new GForce 5 point cam lock harness.

Generation, Year, and Model: 2005 Base C6
Driver Seat: Racetech RT4009WTHR (with optional 'stealth' logo)
Driver Mount: AMT Ultralow Seat Mount
Driver Sub Belt: AMT Ultralow Seat Mount
Passenger Seat: Sparco Evo, not installed yet
Passenger Mount: Hardbar
Passenger Sub Belt:
Harness Bar or Cage: Custom roll bar
Interior?: Full Interior
Carpet?: Yes
Stock Belts in car?: No
Driver: 6'4", 190 lbs., 32-33" waist

Notes/Pics: My car came with a Sparco Evo on the driver side that did not fit me at all. The shoulder wings severely interfered with my ability to shift, the harness strap openings were too low, etc. I went with an extra tall RaceTech RT4009WTHR, and I love it! It is one of the most comfortable race buckets I've ever sat in. I was going to go with Racetech's narrower THR variant of this seat, but Racetech's sales manager suggested getting the wide and tall version and just running the little side pads they offer. Those pads did the trick, and I fit super snug without much wiggle room. The seat really is about as big as you can squeeze into the car. As noted by others, I also took the roof off which made getting it in and out much easier. It just about touches the B Pillar trim pieces near the roof, and it just barely kisses the door panel when it closes. Contact is so slight, that it's not even leaving an impression in the door panel. On the inboard side it is right up against the tunnel, but no interference. I have it basically sitting on the floor on the back mount, with the front lifted for some thigh support. One of the really cool features of this seat is that it has four mounting holes on each side, two lower and two upper. That really increased the mounting flexibility and helped me achieve a comfortable driving position. Below are a couple of pics that show the difference in size between the Sparco and the RaceTech. For reference, I also took a pic of the Sparco label to show which exact model it is (because they have a bunch of variants and it is confusing!).

In this first pic you can see how much higher the shoulder wings and harness openings are on the Racetech. Both seats are mounted as low as possible in this pic for an apples-to-apples look. I later had to significantly adjust the mounting on the Racetech to suit me better.

https://cimg3.ibsrv.net/gimg/www.cor...dc8a5cdaa3.jpg

Below you can see the large difference in side bolstering between the two seats. The RT bolsters hold my ribs much better, have more padding, and are far comfier for my particular body type.
https://cimg7.ibsrv.net/gimg/www.cor...0f5d647b81.jpg

Here's the label from the Sparco that is too small for me:
https://cimg7.ibsrv.net/gimg/www.cor...4fcbd2d2cc.jpg


To get the Racetech in the car I had to run the AMT vertical mounts on the outside of the rails on both sides of the driver seat. Since the AMT mount has so many holes and looks like Swiss cheese, that made it possible to pull everything together! I was impressed by the quality of the billet pieces, all of the included hardware bits, the sub belt mount, etc. Mark does a great job on these. They are extremely versatile, very nicely made, and it's clear that a lot of thought went into the design.

Below you can see how the seat sits on the outboard side. After tearing racing buckets up during install on several previous car, I coated this one with a healthy dose of painter's tape to protect it while I wrangled it into the car over and over again while tweaking the position.
https://cimg0.ibsrv.net/gimg/www.cor...d48520876c.jpg

Here you can see how close the halo sits to the B Pillar. In my selected position, you can slide a piece of paper in and that's about it. Again though, it will depend on how much rake you have to the seat, how far back it is on the rails, etc.
https://cimg5.ibsrv.net/gimg/www.cor...d3cfc9fd39.jpg

Here you can see that it just barely kisses the door panel:
https://cimg9.ibsrv.net/gimg/www.cor...e41047f62e.jpg

On the inboard side it also just kisses the tunnel, but isn't pressing hard on it.

https://cimg2.ibsrv.net/gimg/www.cor...4f1f47445f.jpg

A big thanks again to Mark for the beautiful seat mount and guidance. I'd also like to plug Apex Performance (where I bought the seat) and Racetech. They were a big help in selecting the proper seat to fit my needs, and they provided great communication and service. If anyone has questions on my setup you can feel free to PM me at any time. Thanks, and good luck with your seat shoehorning gents.

Generation, Year, and Model: C7 / 2015 / Z06
Driver Seat: OMP HTE-R 400
Driver Mount: AMT Motorsport Ultralow Seat Mount
Driver Sub Belt: AMT Motorsport Sub Belt Bar
Passenger Seat: Same as driver
Passenger Mount: Same as driver
Passenger Sub Belt: Same as driver
Harness Bar or Cage: Brey-Krause Harness Bar
Interior?: Yes
Carpet?: Yes
Stock Belts in car?: No - when stock seat is removed, the receiver end of the belt goes with it.
Driver: 6'3", 220#, 34" waist, 35" inseam
Notes/Pics: If interior model has memory seats, you lose electronic mirror adjustment; however, they can be adjusted manually, if careful. With stock seats removed, the DIC will display "Service Airbag" until you dismiss the notice. Seat belt indicator will be on in the dash but no warning chimes. Since the stock shoulder belt can remain installed, though not used with the race seats, secure with a zip tie to keep the metal end attachment from banging around.

Special thanks to the following for helping me with this modification:

• Fleming23 - Corvette Forum
• Bill & Steve Dearborn - Corvette Forum & Track Rat Friend
• Linda Powell & Chuck Hamerly - Apex Performance
• Mark Petronis - AMT Motorsport

https://cimg4.ibsrv.net/gimg/www.cor...62b9ac7e42.jpg

https://cimg9.ibsrv.net/gimg/www.cor...65f47e552e.png
https://cimg2.ibsrv.net/gimg/www.cor...a4258078e8.jpg
https://cimg6.ibsrv.net/gimg/www.cor...b7f122e269.jpg
https://cimg3.ibsrv.net/gimg/www.cor...30bae97478.png

Generation, Year, and Model: C7, 2017 Z06
Driver Seat: OMP HTE-R 400
Driver Mount: AMT
Driver Sub Belt: AMT
Passenger Seat: STOCK
Passenger Mount: STOCK
Passenger Sub Belt:STOCK
Harness Bar or Cage: RPM CAGE
Interior?:YES
Carpet?: CUT TO FIT AMT SUB BELT BAR
Stock Belts in car?: NO
Driver: 5'9 240
Notes/Pics: Amt Sub belt bar will NOT fit under race seat without being shimmed do to wire channel running up center of seat area. using 6 point harness. Im 5'9 and the extra padding of the omp seat lifts me to high in seat for proper use of harness, so can not use and sit flat on seat tub.
https://cimg7.ibsrv.net/gimg/www.cor...e406df420a.jpg

how many washers needed to shim sub bar up
https://cimg4.ibsrv.net/gimg/www.cor...e8f450d965.jpg
https://cimg6.ibsrv.net/gimg/www.cor...acbf43575c.jpg
https://cimg6.ibsrv.net/gimg/www.cor...2c9d28b97c.jpg

Generation, Year, and Model: C5 2002 Z06
Driver Seat: OMP First-R
Driver Mount: Marrad Ultra Low Seat Mounting Bracket with sliders and side mounts
Driver Sub Belt: Stock seat belt retained
Passenger Seat: Stock
Passenger Mount: Stock
Passenger Sub Belt: Stock
Harness Bar or Cage: None
Interior?: Yes
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 6'2" with thick helmet. Helmet is about 1/4 inch of the headliner
Notes/Pics: 4 lb lighter than factory. Marrad brackets are about 20lb and the seat is 18 lb.

Edit: Forgot to mention that the Marrad bracket is too wide for the seat, making the side mounts bend inwards and making the sliders not very happy.

Edit2: Also, the Marrad bracket is VERY strong. The powder coat is flawless. It looks like it was made in a small shop but the result is very professionnal. It also gave me just enough room to fit in the car with my helmet, where a sparco braket would have left me with no space. This combo makes you sit at least 2 inches lower than factory.

Edit3: After a year, I noticed that the seat is a bit too much on the right; the driving position isn't centered. While this isn't exactly uncomfortable, I found that the stock position placed my arms perfectly on the armrests, where now it's weird a bit. Also, the seat end up in the door pad leaving a small bump into it.

Not sure if this question is for me or for jloZ06.

The one I have fits very well, does not hit anything and allows a lot of leg room. With the factory seatbelt, it touches the center console a bit, but aside of that, it could be a stock seat.

However, being tall, I find it not very easy to get in and out of the car; I have to bend inward quite a lot, open the door entirely and I lift the steering completely (thank you GM for making it adjustable). I've had few strange stares when trying to extract myself out of the car, until they realize what seat was in there. However, once in, it is surprisingly comfortable; I've had no discomfort doing 3+hours roadtrips (factory suspension). Also, this seat appears to be made for shorter people, my backarm touches the shoulder support when shifting. Since I am sitting away from the console, it is more an annoyance than a problem, but I could see someone with shorter legs having a hard time shifting.

With this combo, I am actually sitting lower than I was with the factory seat. The Marrad kit is very well made, very sturdy, fit right in the factory holes with no hassle and really gives you the maximum amount of room.

I found this thread very useful so only fair that I contribute!

Generation, Year, and Model: c5z, 2001
Driver Seat: sparco evo2
Driver Mount:
Driver Sub Belt:
Passenger Seat:std for now
Passenger Mount:
Passenger Sub Belt:
Harness Bar or Cage: half cage
Interior?:full
Carpet?:yes
Stock Belts in car?:yes plus 6point.
Driver:6,2 100kg
Notes/Pics:
Self made mount with 1/4in 6*6 ally equal angle 6023 T6. Seat mounted to 1/4in plate. Plate mounted to equal angle. Lap belts to eyebolts on outside lower rear of equal angle. Inner one also carries seat belt recievor. Submarine belts to eyes in 6mm steel L piece bolted across equal angle under seat. Shoulder straps to cage x bar. Seat studs removed. 3mm steel plate reinforcements over standard x pieces under floor. Outside eye bolt just clears lower searbelt retractor. Seat fits square with front right corner tight to tunnel and small square of carpet/insulation removed. Plenty low enough for helmet.

Looks homemade, a little heavy. I think safer than some of the ready made (too thin material, wrong location eye bolts) kits. $150 in material. I will probably go full cage with proper separate mounts at some point.

Huge difference in connection to car dynamics.

Jeff the Racetech seats really are worth the effort. It took a few minutes, more like a couple of hours, to figure out how to make mine work but I've never looked back. Can't imagine going with anything else now. Glad you got it all to fit.

Herman

Installed the new Sparco QRT-R seat with Marrad base with zero rubbing, and enough room to adjust forward and aft. Perfect fit! Currently installing the Sharkbar harnessbar.

https://photos.smugmug.com/Toys/GS/n...Vp569TJ-X3.jpg

From what I've read, the seat and brackets probably weight 25 lbs or less! Nice job.

I went with the 4 point ASM Schroth ... I have a Hans device too and previously had the 6point Schroth Profi II in my M4 but this time I decided to go ASM because I want the harness to give a little since I don't have a full cage, only a harness bar.

A few other points
- Everything went together perfectly, the Marrad base is very well engineered. Lots of adjustment forward and aft.
- Seat is so light and also so rigid! Very impressed!!
- Seat is narrow so it fit with no rubbing
- Sharkbar harness bar went in with zero issues, took me 30 minutes to install - Very well engineered
- I was able to quite easily retain the 3point belt setup. The pretensioner in the belt won't fire but that just means the airbag will fire harder. Risk I'm willing to take.
- Now I feel so much better in the car, very connected and I feel part of the car .. not sitting on top of the car, if you know what I mean. I had previously debated comp seats and decided I don't like the sofa-like feel of the comp seat with no bottom cushion side bolstering.
- Also - PLEASE PLEASE Tape / Painters Tape your door sills and other soft surfaces.. I managed to scratch my door sill plastic by being dumb.. learn from my mistakes..
Also - I don't know what all the fuss is about with the install - I had zero problems and was able to adjust the seat to exactly where I like it. I can go back and forward easy if I want to. Mirrors dont won't anymore but can be adjusted by hand. Steering telescope function still works which is awesome. I'm 5'9 170lb for reference.

https://photos.smugmug.com/Toys/GS/n...86knZZn-X3.jpg

Correct! You guys are awesome, I'm very impressed with the base. I was frankly shocked when I picked up the seat and base. It is so light. The stock seat is insanely heavy.

I am mulling over switching the passenger side to the same setup so might reach out to you to buy another base soon :)

Generation, Year, and Model: C5, 2000, Coupe
Driver Seat: Sparco Evo
Driver Mount: Home made
Driver Sub Belt: N/A
Passenger Seat: Stock
Passenger Mount: Stock
Passenger Sub Belt: Stock
Harness Bar or Cage: N/A
Interior?: Full
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 6', 170 lbs, 32 waist
Notes/Pics: Positioned the seat for about 3/8" clearance to the door. Unwound the stock lower belt from the retractor and fed the belt through the seat.

https://cimg7.ibsrv.net/gimg/www.cor...a5142ce861.jpg

Generation, Year, and Model: C6 Z06, 2009
Driver Seat: Racetech RT4009W
Driver Mount: Brey Krause BR9144 Seat Mount with Integrated sub bar, BR9061 Side mount bracket, Sparco SP493 sliders
Passenger Seat: Stock
Passenger Mount: Stock
Passenger Sub Belt: Stock
Harness Bar or Cage: N/A
Interior?: Full
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 6', 180 lbs, 34 waist
Notes/Pics: Seat fits, however with this setup it sits much higher than factory seat. I have to remove padding to fit in the car with a helmet and feel like even without the padding, it still sits higher than factory seat. Also slider range is limited, at the further point back there is still a few inches further it could go which would be nice.

Can anyone tell me if there is another mount & slider setup that would significantly lower the seat and also set it further back to allow for more leg room?

Corbeau FX1 in a C6Z? None of the posts mention a Corbeau install. The FX1 is sized between the Fx1 Pro and the wide version. My C6Z has a full interior; no stripping desired. Any insight will be appreciated.

Has anyone put an OMP HTE-R XL in a C7? Also, what is the total weight loss going from stock comp seats to the HTE-R?

Sean this might help.https://www.corvetteforum.com/forums...n-the-c7z.html. i love the 4119-w Racetech and they are really close to the same size. It's a really tight fit.

Personally, I think the "A" measurement of 580mm would make it very difficult to not modify the door panel. It is close with an HTE-R 400, but at less than an inch in total additional width, or 1/2" per side, I suppose it could work.

Any particular reason you don't want to do the 400? I'm not a small guy by any stretch, and I fit the seat just fine. I

I'll see if OG Racing has one to sit in but as I recall you had to cut your to get it to fit and I'm a good bit wider than you are.

OG only had an HTE-R and an HTE-R XL sitting out to try. I honestly wasn't sure if they still made the 400 until I got home. I'll try that out.

Does anyone have any solid data on the weight of the 3LZ/ZR comp seats compared to the HTE-R + rails? I'm really not going to mess with it unless there is at least 50 lbs to be saved total by replacing both seats.

I can attempt to scale mine this weekend. I'll be puling the HTE 400 to swap the oem 2LZ seat back in for street use over the winter.

Comp seats weigh 56 lbs, or at least the passenger side does, according to this thread https://www.corvetteforum.com/forums...ld-thread.html If I remember correctly my drivers side seat felt heavier than the passenger side did. The racetech seat weighs 20 lbs but I'm not sure what the AMT mount weighs.

Ordered a custom-sized 16" Ultrashield Pro Roadrace seat (5-6 week lead time) and have AMT's mounts. Shoulder width ended up at 22" and looks like it will just fit in the C7 with the seat down low. Will post up my experiences fitting it. Have to install the BK bar and get a seat back brace.

Hey Sean, it's been a while! Can't help you with C7 info but I put a HTE-R XL in the C6Z that Katech built for me and did not have any fitment issues. I believe the C7 may be a little narrower so it might be close in once of those. It's an awesome and very comfortable seat so if you can get one it I think you are going to love it!

This should be a sticky :thumbs:

2003 Z06
Full interior
Corbeau Forza seat
Corbeau C5 seat adapter and Corbeau dual locking slider
The shoulder support BARELY touches the door panel when the door is closed. I could slide a piece of paper b/w them so it's not forcing against the door.

Only needed to oval out the seat bracket holes since I assume my seat studs were slightly off during the vehicle assembly. I'm 6ft and I did not see a need to do any shimming or get stud extenders. I MIGHT add some washers under the front seat feet to slightly recline the seat.

Just updated the thread so all the links at the top jump to all the correct posts. Thanks for playing guys I know this thread has helped a lot of people!

Glad you started it.

Generation, Year, and Model: 2009 C6 Z06 2LZ
Driver Seat: OMP Champ-R
Driver Mount: Planted base/Planted seat bracket/OMP Dual locking slider
Driver Sub Belt: Planted base
Harness Bar or Cage: Sharkbar
Harness: Schroth Profi 3x2 pull up
Interior?: Full Interior
Carpet?: Yes
Stock Belts in car?: Yes
Driver: 5'7", 150 lbs, 32" waist
Notes: Got the seats and harness brand new for $650 shipped. Killer deal considering the seat retails for $650 and the harness another $400 if bought stateside. Installed airbag and seat position sim. No airbag lights and steering wheel still electronically telescopes.

Next to stock seat
Attachment 48350022

Sub belt mounted to seat base
Attachment 48350023
Attachment 48350024

Seat, base, slider, bracket, sub belt
Attachment 48350025

All done.
Attachment 48350026

Probably a dumb question but no better place to ask it.

I'm installing a driver side seat this off season using the AMT ultra low mount and a Brey Krause harness bar. Does it matter which stud extenders are used (marad vs vetteworks)? Is two enough for just the rear or is it ideal to use four to keep the mount level?

AMT sends the extenders with it's mount if you're talking about the seat mount. They also sell the bar to hook the submarine harness up below the seat. Hopefully that's what you're asking.

I haven't unpacked the AMT ultra low seat mount so I'll have to check for the extenders. I did pay extra for the sub belt mount so I should be covered there.

Thanks for the prompt response.

Glad I could help. I was probably the inspiration for Mark to start this thread. I bought 2 of his mounts and put Racetech 4119w seats in a C7. It was a tight fit and I think everybody thought they wouldn't fit. I managed to get them in and the AMT mounts worked great.

Meant to send PM

I swapped in a new seat this year so I thought I would add it to the list.
Heres mine
Generation, Year, and Model: 2002 C5 Z06
Driver Seat: OMP HTE-R 400
Driver Mount: MTI
Driver Sub Belt: Vetteworks
Passenger Seat: Sparco Evo II US
Passenger Mount: MTI
Passenger Sub Belt: Vetteworks
Harness Bar or Cage: Brey Krause Harness Bar
Interior?: Full Interior
Carpet?: Not anymore
Stock Belts in car?: No, the bottom reel by the door sill does not fit with the MTI rail and the seat mounted as low as possible
Driver: 6'1" 230# dad bod, need to get my ass on an elliptical.
Notes/Pics: Notes specific to the OMP seat. I had to remove the butt cushion to sit low enough in the car. With the cushion and head liner, my helmet was touching. This seat holds me in place much better than the sparco I had previously. I move zero side to side now. The seat is much higher on the thigh. It is also more open in the shoulders, I felt like the sparco pinched my shoulders in. My challenge is that when I take a sharp left turn (VIR turn 4) my hand hits my leg. I have the large stock wheel and the seat doesn't allow your leg to move. Guessing I'll need a slightly smaller wheel in the future.

Comparison notes: OMP seat works! It holds me in place really well and I like the safety aspect of the halo. It sucks to get in and out of the car, like sucks bad! The sparco is a nice seat, i just found myself sweating from still having to hold myself in place. I've also watched enough crash videos to feel like it was time for the halo upgrade.

Hope this helps someone!
Dan

Any experience with a ZR-1 C4? Recommendations on seat mount, racing seats, etc?

thanks! scott

Generation, Year, and Model: 2000 C5 FRC
Driver Seat: Sparco R100
Driver Mount: Sparco C5 seat base, part number 600SB198L + Sparco universal slider set, part number SPA00493
Driver Sub Belt: I modified the seat to create a pass-through. It was super easy to do.
Passenger Seat: OEM
Passenger Mount: OEM
Passenger Sub Belt: OEM
Harness Bar or Cage: BK harness bar
Interior?: Full, although I did remove the trim over the lower seatbelt retractor. Might be able to reinstall this, but I haven't tried.
Carpet?: Yes
Stock Belts in car?: Yes, and usable
Driver: 5'-11" 185 pounds, 36" waist. The seat fits me perfectly. It's super comfy, and would still be fine if I was heavier. Driving position is perfect for me on the street, but I had to modify the seat base to lower it 1/2" so that I could fit comfortably wearing a helmet.
Notes/Pics: Total cost for everything (seat, base, sliders): $560. Prior to this, I had a Sparco Evo II in the car, and before that Corbeau A4. Details and pics for all of these seats are in my R100 seat review thread.

Link to my review thread: Sparco R100 Seat in my FRC

With 6pt belts installed:
https://cimg6.ibsrv.net/gimg/www.cor...d0afd4aadf.jpg

Prior to installing the 6pt belts:
https://cimg8.ibsrv.net/gimg/www.cor...78ae8d2138.jpg

https://cimg9.ibsrv.net/gimg/www.cor...18aace5644.jpg

Generation, Year, and Model: 2018 C7 Grand Sport
Driver Seat: Recaro Profi SPG XL
Driver Mount: Custom fab
Driver Sub Belt: Yes
Passenger Seat: Stock
Passenger Mount: Stock
Passenger Sub Belt: No
Harness Bar or Cage: BK harness bar
Interior?: Full
Carpet?: Yes
Stock Belts in car?: Yes, w/ BK stock belt mount
Driver: 6'0", 38" waist
Notes/Pics: Thanks to Mark at AMT for all the guidance

https://cimg1.ibsrv.net/gimg/www.cor...e8fe640538.jpg

I'm piggy-backing the earlier comment by .archfarseer. regarding the help by Mark at AMT.

I recently worked with Mark to secure a seat that met and fit both my car and budget needs. With Mark's assistance, I ended with a Sparco Evo II US with MTI Racing rails to install into a 2007 Z06. My intent was to purchase a seat that would fit without removal of any interior pieces. During the negotiation and final dealing, several twists occurred that could have jeopardized the final purchase. Mark did his best to meet me half-way to assure my satisfaction. Overall timeliness was satisfactory despite our dealings occurring during the Holidays.

Located in the NE, I look forward to warmer temps to allow for its installation. I'll post more observations then. I'm 5'11", weigh about 185 with a 36" waist. The seat fits me perfectly with all cushions in place.

Thanks again, Mark, for your patience and helpfulness.

Fast Eddie I

You can't beat Mark. When I installed my seats I was the first one to put these Racetech seats in a C7. They supposedly wouldn't fit. I replaced both seats and managed to make it work with the AMT mounts. I had to use 2 left side mounts on the right seat and 2 right side mounts on the left seat, or something like that. Since I already had mounts for both seats it worked out fine. When I called Mark about it he offered to do anything he could to get it working. Once I got them installed he started this thread :) .

Generation, Year, and Model: 2003 C5Z
Driver Seat: Sparco QRT-R
Driver Mount: AMT
Driver Sub Belt: AMT Cross Bar
Passenger Seat: Sparco QRT-R
Passenger Mount: AMT
Passenger Sub Belt: AMT Cross Bar
Harness Bar or Cage: Autopower
Interior?: Yes, Full
Carpet?: Yes, Full

Stock Belts in car?: No
Driver: 250lbs, 5'11 38" waist
Notes/Pics:
Driver's seat isn't in yet but I did mock it up, waiting on AMT to restock brackets. I did passenger first so I could knock the sensor relocation out. AMT brackets came pre drilled and tapped for the sensor but you do need to source screws at the local HW store.

Seats are tight but fit, no complaints there. these brackets are works of art, very impressed and worth the money.

https://lh3.googleusercontent.com/DY...v=w415-h737-no

Both seats in!
https://lh3.googleusercontent.com/8y...b=w415-h737-no

Generation, Year, and Model: 2000 C5 FRC
Driver Seat: Ultra Shield 18" Rally Sport
Driver Mount: AMT
Driver Sub Belt: AMT
Passenger Seat: Stock for now
Passenger Mount: Will be AMT
Passenger Sub Belt: Will be AMT
Harness Bar or Cage: Brey Krause Harness Bar with I/O Port backing plate/brace mounted to back of UltraShield.
Interior?: Full Interior
Carpet?: Full carpet in place. No beating of the firewall or anything was required. Plug and play for me.
Stock Belts in car?: Yes but not being used.
Driver: 5'9" 40" waist.
Notes/Pics: I'll come back and add some pics later or if anyone needs help feel free to PM me. I installed a MOMO wheel with NRG hub adapters to make it easier to get in and out of the seat. Marks assistance and time in helping me sort thru a few challenges was paramount. His customer service is the best in the biz. Yes, you can fit an 18" seat into a c5 going this route. I had to mount the AMT brackets on the outside but it worked out perfectly. Grassroots Motorsports has a great video on this exact thing regarding their c5Z project car.

Generation, Year, and Model: 2014 C7 Stingray
Driver Seat: Ultra Shield 16" Pro Road Race - Custom fit - 2" taller - Standard shoulder width
Driver Mount: AMT
Driver Sub Belt: AMT - Using AMT's rails, not the sub belt adapter as it wouldn't fit as low as I have my seat.
Harness Bar or Cage: Brey Krause Harness Bar with I/O Port backing plate/brace mounted to back of UltraShield.
Interior?: Full Interior up front, left rear interior out after installing BK bar for weight reduction and easy of service; plus exhaust is louder!
Carpet?: Trimmed driver side carpet under seat due to C7 floor pan lip/edge along center tunnel.
Stock Belts in car?: Yes but not being used.
Driver: 6' 3" 260lbs
Notes/Pics: Ended up modifying the C7's center wiring harness sheath to allow the seat rails to sit on the floor. Had to take care to get seat adapter stack height just right to be even with floor.


https://cimg8.ibsrv.net/gimg/www.cor...165966b96d.jpg
https://cimg9.ibsrv.net/gimg/www.cor...0a78dacad2.jpg
https://cimg0.ibsrv.net/gimg/www.cor...beaebfbb28.jpg
https://cimg1.ibsrv.net/gimg/www.cor...5c00d19a70.jpg

Saving this setup. Same height and waist as me lol.

saved for future reference.

Thanks for posting this. I needed a neat way to mount the seat backing plate and the I/O port option is great. Just ordered 2.

No love for the C4 guys? I know a Corbeau Forza WIDE wont fit....

Look into the Sparco QRT R.
Fits in small cars.
I have one in my c5 waiting on brackets. fits me and the car just fine.

Harness Bar & Seat Rails
 

Gents, I see many of you are using the low profile style seat rails/mounting brackets by AMT, Marrad, MTI, etc.

Are any of you using this with a harness bar (Brey Krause, Sharkbar, etc.)? I have the BK bar and I worry that if I use a low profile mount I will have shoulder belts angled upwards (from seat towards harness bar) rather than 0-20* downwards. My seats alone are 890mm high so I don’t think the problem is there.

Please let me know how you’ve avoided this, or if you’re just accepting the upward angle.

Thanks
Anthony

Depends on the generation and your seat. My custom fit Ultrashield 2" taller with seat on floor has harnesses perfectly level 0°. Sharkbar in a C7 is super low. I would fit seat first then do harness bar accordingly.

Thanks, the car is a C6 Z06 just to clarify.

Then in your case the C6 sharkbar is much higher than it is in the C7. For some reason in the C7 they built it to fit through the slot in the base GT seat which is very low and nobody would ever use. I believe the C6 Sharkbar and Brey Krause are similar heights. As I said, I would get the seat fit to your body and then do the harness bar second. You don't want the seat overly high to accommodate the bar. I guess you could do that if you're shorter and have room to spare. If that were the case you wouldn't want to sit down on the floor anyway.

The C6 sharkbar is lower than the the BK. The sharkbar mounts below the shoulder belt location while the BK is mounted almost at the same height as the shoulder belt mount. Just google the images and you’ll see.

Thanks guys; this is the problem quoted above. I’m 6’1 so I need the seat low to maintain helmet room. You can tell BK obviously considered the high loads an impact would cause on the bar with their design, and yet it seems mounted so high as to be useless if you’re sitting lower than stock. I am currently thinking of welding another bar onto it that sits lower similar to their C7 design to accommodate this need. I guess there aren’t many others in here that have run into this problem.

Generation, Year, and Model: C5 2004 Z06
Driver Seat: Sparco QRT-R
Driver Mount - AMT Ultralow
Driver Sub Belt: AMT Ultralow
Passenger Seat: None
Passenger Mount: None
Passenger Sub Belt: None
Harness Bar or Cage: Full Cage
Interior?: Completely stripped
Carpet?: None
Driver: 6', 32'' waist
Stock Belts in car?: No
Notes/Pics: I switched from the Evo 2 US to the QRT-R to get even lower. The QRT is molded so you sit about 3/4" lower, and it does make a noticeable difference with head room. And not to toot my own horn but our mount makes the process a WHOLE lot easier than any other mount where you need to use two wrenches to get everything tightened up. I fought with my last setup with with MTI rails for what what seemed like hours. As you can see from my uncommon-to-a-Corvette X Bars my seat only goes in one way and comes out one way. Happy to say I only had to get it in and out twice to get it perfect.
https://cimg9.ibsrv.net/gimg/www.cor...0a9b7d74fa.jpg



https://cimg2.ibsrv.net/gimg/www.cor...b166dbcc89.jpg

There's no way I would have been able to fit the Racetech 4119w seats in my c7 without your mounts!

Generation, Year, and Model: C7 / 2019 / GSZ07
Driver Seat: OMP HTE-R XL
Driver Mount: AMT Motorsport Ultralow Seat Mount
Driver Sub Belt: AMT Motorsport Sub Belt Bar
Passenger Seat: Stock
Passenger Mount: Stock
Passenger Sub Belt: N/A
Harness Bar or Cage: RPM 4 Point Roll Bar
Interior?: Yes
Carpet?: Yes
Stock Belts in car?: RPM Harness
Driver: 5’10", 185#, 33" waist, 32" inseam
https://cimg9.ibsrv.net/gimg/www.cor...09a76c921.jpeg
https://cimg0.ibsrv.net/gimg/www.cor...1ed433974.jpeg

Hey guys. Is leaving 3 pt OEM belts in place always an option? Or is it physically not possible depending on the seat?

Some of you leave them in, and others omit them entirely...I just want to know if this is a choice or are there some seats where they "have" to be left out for fitment.

Anyone done sparco II QRT yet? the new light QRT shell model.

I did extensive chair testing this week, and it seems the best.

Both Mark@ AMT and I posted that the QRT fits, see above.

He's talking about the Evo II QRT. Sparco is making other models with the QRT technology now. So that model would fit like a regular Evo II (so a little more roomy than the QRT-R) but still have a lower seat and lighter shell.

Mark is correct, also Mark you got mail ;)

Oh interesting, thanks for the clarification - I thought the QRT-R was a similar size to the Evo II and deprecating the Evo II. from personally testing they feel very similar width wise. Obviously lower due to design.

Sooo I spent way to much time researching seats, testing them, reading up on them. I haven't raced in years, and last I did it, evo II plus was the goto seat.

QRT is a new design/manufacturing thing for sparco, QRT-R was one of the first new seats, it was made as a new seat with the new way to make them.
see https://www.sparco-official.com/en/r...qrt-seats.html

Later they decided to make some of their older seats, with the QRT tech

EVO II QRT seems to be the one that is best for taller drivers when we are talking holes for belts, only one better was circuit II QRT, but non removable helmet supports are not allowed at the nürburgring TF, also It would probably be too tall.

Reading online I found multiple posts that said the QRT-R was a good for taller people, this is not true, Im ony 6'2 and my shoulders are about 1-2 inches over the top of the belt holes?! :o Looking at spec, this is also confirmed.

I will be moving forward with the evo II QRT, shell is 12.7lbs, with padding and all stuff on its about 15lbs, this is lighter than carbon seats some years ago :o

I got in an EVO II QRT today to test fit on our Ultra Low Brackets with Sliders. Obviously aluminum fixed rails are lighter but for those who need the seat to adjust, I believe I have things mapped out. When the side mounts were attached the spacing was 1 7/8" wider across the front than the rear, but our wider based side mounts were able to span the width needed.

Our Ultra Low Brackets have 4 rows for mounting sliders. For the EVO II QRT, use the row marked below.
https://cimg6.ibsrv.net/gimg/www.cor...929cc9d9dd.jpg

The assembled unit looks as below.

https://cimg7.ibsrv.net/gimg/www.cor...2544dc69ec.jpg

Using the 4th hole down and forward of the two holes in the rear, sits the seat at the lowest position, within 1/8" of the side mount base.

https://cimg4.ibsrv.net/gimg/www.cor...a6ffe186c7.jpg
https://cimg0.ibsrv.net/gimg/www.cor...f13fd9293d.jpg
https://cimg3.ibsrv.net/gimg/www.cor...2eee2ec905.jpg

You will gain headroom over stock - not as much as our ST3 since it drops between the sliders - but probably 1-2" depending on whether the rear cushion is in or out. We also have another version of the Ultra Low bracket coming out that will have tabs for lap belts on the bracket. That would provide both fixed mounting points for harness belts and mounting points for the stock belts that adjust with the seat.

I have a qrt r seat in my c5z fits the car and me great!

This sounds great! When is this being released?

Also regarding the few posts above and 6’2 guys finding shoulder harness slots that fit them, I’m that height as well and fit great in my OMP First-R. An Evo 2 also fits me nicely but the OMP seats have bigger harness holes that make fitment a bit more flexible. Much higher leg bolsters as well. Same deal for their WRC-R as well.

im still fiddling with my installation but once I get it ironed out I’ll fill out the survey/questionnaire for which this thread was created.

I expect some by the end of next week.

Has anyone tried these brackets/sliders with an FIA Tillett seat yet?