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What Would Be Your Ultimate C7 Track Car Build?

Old 11-25-2018, 09:40 PM
  #21  
shizon'00
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I would go motec with a Bosch abs and custom harness. Not cheap but pays huge dividends on the binders plus you can do bias from the cockpit. Save money on the motor and spend it on real race electronics. My .02.
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Old 11-26-2018, 09:15 AM
  #22  
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The RadiCal from AP is a fantastic caliper, and offsets a LOT of the unsprung weight going from the carbon to the iron rings if you switch. The net gain one the whole brake package is pretty small, I'm sure JRitt at Essex could chime in on the savings.
Thanks for the votes of confidence on our brake kits gents. Our most popular C7 four wheel brake kit actually weighs less than the OEM carbon ceramic brake package!

Our front 9668/372mm Radi-CAL brake kit weighs 2-3 lbs. more than the OEM carbon ceramic setup, but our CP9450/365mm rear Radi-CAL kit actually eliminates 10 unsprung lbs. vs. the OEM Z07 carbon ceramic package (and maintains the parking brake).

With our kit you get all of the performance, maintenance, and cost benefits of iron, and you drop unsprung weight vs. carbon ceramic. You can also run 18" wheels with our setup, and you preserve the OEM CCM setup for when you sell the car.
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Old 11-26-2018, 10:41 AM
  #23  
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Originally Posted by Poor-sha View Post
Thanks, lots of great ideas in there. Are you referring to the GS Z07 sways or Z06/Z07 sways? Can you elaborate on why? Based on a chart I saw elsewhere it looks like the GS (non-Z06), Z06, and Z06/Z07 all share the same sway bars.

Unfortunately I don't think DSC has coilovers that will fit a C7 but that would be cool. Assuming no coilovers what leaf springs would you go with?

Any suggestions on who makes a big carbon splitter? I'm a little hesitant to go with carbon though given that they can get torn up on track (at least both my Z06 and ZR1 splitters did).
We don't have the production version yet but we can do in-house installations of our splitter in a shorter version like the white car or giant one like the black car. Would like to be involved with the build, especially in the suspension/cooling/aero areas.






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Old 11-26-2018, 01:06 PM
  #24  
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Originally Posted by w00tw00t View Post
I'm slowly building my 2019 Grandsport 2LT MT to be my ultimate track car:

- Penske 8300 Remote Res. 750/650
- LG G2 Swaybars
- Granatelli Toe Link Kit
- LG Mag Sims
- Track Wheels - Signature SV502 Matte Black 18x11 ET38 18x12.5 ET50 With Knurling + TPMS NT01 315/30/18 335/30/18
- Stage 3 Aero - Splitter and Spoiler
- Brake Pads - Raybestos ST43
- Black Lug Nuts - McGard
- Driver Seat - Cobra Halo
- Passenger Seat - Sparco QRT-R
- Scroth 4-Point ASM Harnesses
- Marrad Bases
- Sharkbar Harness Bar
- MGW Shifter

Car is already around 3300lb (half fuel) and feels incredible around the track. The Penske full coilover setup has blown my mind! Night and day improvement over mag shocks.

The c7 needs to lose morr weight to be up there with the others on the straights. A gt3 murders a c7 on the straights. More power or less weight.

Last edited by BrunoTheMellow; 11-26-2018 at 01:12 PM.
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Old 11-26-2018, 01:15 PM
  #25  
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Originally Posted by w00tw00t View Post
I'm slowly building my 2019 Grandsport 2LT MT to be my ultimate track car:

- Penske 8300 Remote Res. 750/650
- LG G2 Swaybars
- Granatelli Toe Link Kit
- LG Mag Sims
- Track Wheels - Signature SV502 Matte Black 18x11 ET38 18x12.5 ET50 With Knurling + TPMS NT01 315/30/18 335/30/18
- Stage 3 Aero - Splitter and Spoiler
- Brake Pads - Raybestos ST43
- Black Lug Nuts - McGard
- Driver Seat - Cobra Halo
- Passenger Seat - Sparco QRT-R
- Scroth 4-Point ASM Harnesses
- Marrad Bases
- Sharkbar Harness Bar
- MGW Shifter

Car is already around 3300lb (half fuel) and feels incredible around the track. The Penske full coilover setup has blown my mind! Night and day improvement over mag shocks.

Need to do our monoball control arms next(easy time to do a camber kit as well). A-may-zing at limit. Appreciate the support!
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Old 11-27-2018, 11:46 AM
  #26  
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Very interesting to read that GS is the preferred choice over Z06 and ZR1
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Old 11-27-2018, 11:49 AM
  #27  
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mostly bang for the buck!

consumables are outrageous with Zr1 a bit better with the Z06

Last edited by ErnieN85; 11-27-2018 at 11:50 AM.
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Old 11-27-2018, 01:15 PM
  #28  
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Originally Posted by w00tw00t View Post
I'm slowly building my 2019 Grandsport 2LT MT to be my ultimate track car:

- Penske 8300 Remote Res. 750/650
- LG G2 Swaybars
- Granatelli Toe Link Kit
- LG Mag Sims
- Track Wheels - Signature SV502 Matte Black 18x11 ET38 18x12.5 ET50 With Knurling + TPMS NT01 315/30/18 335/30/18
- Stage 3 Aero - Splitter and Spoiler
- Brake Pads - Raybestos ST43
- Black Lug Nuts - McGard
- Driver Seat - Cobra Halo
- Passenger Seat - Sparco QRT-R
- Scroth 4-Point ASM Harnesses
- Marrad Bases
- Sharkbar Harness Bar
- MGW Shifter

Car is already around 3300lb (half fuel) and feels incredible around the track. The Penske full coilover setup has blown my mind! Night and day improvement over mag shocks.

Dude, your car looks epic......great mixture of beauty and brawn. One of the best looking C7's I've seen.

Last edited by TrackAire; 11-27-2018 at 03:18 PM.
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Old 11-27-2018, 01:47 PM
  #29  
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Not to derail the thread but what are the plans with the ZR1?

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Old 11-27-2018, 03:25 PM
  #30  
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Originally Posted by GoatHead View Post
Very interesting to read that GS is the preferred choice over Z06 and ZR1
weight. Can easily make “enough” power NA. and heat.
Also there is a lot of debate about the z07 being over sprung.

Consumables should be about the same aside from fuel. Maybe the z cars will burn rear tire at a slightly faster rate but that’s in the noise as far as cost goes.
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Old 11-27-2018, 04:43 PM
  #31  
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Originally Posted by village idiot View Post

weight. Can easily make “enough” power NA. and heat.
Also there is a lot of debate about the z07 being over sprung.

Consumables should be about the same aside from fuel. Maybe the z cars will burn rear tire at a slightly faster rate but that’s in the noise as far as cost goes.
"Enough" power is good for a "reasonable track car" thread. What's the point of an "ultimate track car" build that gets crushed by a stock C7 ZR1? Shocks and swaybars won't make up being down hundreds of HP. May as well buy a Camaro and save even more money.
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Old 11-27-2018, 04:56 PM
  #32  
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Originally Posted by wtb-z View Post
"Enough" power is good for a "reasonable track car" thread. What's the point of an "ultimate track car" build that gets crushed by a stock C7 ZR1? Shocks and swaybars won't make up being down hundreds of HP. May as well buy a Camaro and save even more money.
a gutted GS with wider tires, extra aero, killer brakes, 600HP NA motor, solid bushings, high end suspension is probably going to be faster than a C7 ZR1. On top of that, it will be a hell of a lot better of a track car. If I was never allowed to sell it (so value/money) didn't matter, I know 100% I'd rather have this build than a stock ZR1. Or even the same mods on a ZR1.

Let's be clear- he isn't going to build a LITERAL "ultimate" track car in the sense that it will be the best ever.
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Old 11-27-2018, 05:28 PM
  #33  
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We just wrapped up what I would consider to be a great track day car that retains street drive ability. It started as a 2019 Grand Sport 1LT Z07 with a manual transmission and comp seats.

Mods included:

Katech 427 LT1 that made 610 rwhp (includes ARH 2" long tubes, MSD intake, Halltech CAI)
Katech billet flywheel (with stock clutch)
ARE dry sump system, Katech oil cooler etc.

LG mono *****
LG GT2 coil overs
LG drop spindles
LG sway bars
LG toe links
LG radiator
LG carbon splitter and side skirts

Forgeline VX1R wheels
Toyo R888R tires

I got a chance to do some shake down runs at our local track and the car was simply amazing. After a couple sessions I pushed it a little and was amazed just how good it felt. Coolant temps never went over 215, oil temps never went over 250 and there weren't any P cars pulling us down the straight
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Old 11-27-2018, 07:10 PM
  #34  
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Lots of great ideas in this thread, keep them coming. I too am inclined to go with the GS lightened as much as possible with no compromise for street use and more power. A 3300 lb GS with a 700 HP Katech 427 would have the same power to weight as a ZR1 with RVK option. If you can get it stripped GS down to say 3100 or less then it would be like a ZR1 with over 800+ HP.

I've tracked the C7 Z06 and it is a phenomenal track car right out of the box in most every area. The C7 ZR1 is even better but both are really expensive to run due to the weight. I don't feel the weight hurt performance as much as it meant you went through brakes, fuel, and tires faster. For me that was totally acceptable for a car that I could also drive to work or take my wife out to dinner in. Unfortunately something has come up and I won't be tracking the ZR1 any more and I really have no need to have my track car be a street car any more - hence this exercise to see where else I could go. Truth is I considered other cars like the Ariel Atom 4 but I really like the way the C7 drives and have a lot invested in that platform.

As far as suspension goes I am definitely going with the DSC Sport controller and Tractive shocks as I really loved what they did for the Z06 and the ability to tune them with help from TPC Racing. AP Racing brakes and Essex Parts are also a must have for me as they've proven themselves over the last 3+ years on heavier cars and many hours of track time. I took advantage of the black Friday sale to also order a set of AMT spherical bushings.

As for the rest, I'm still listening to hear what you guys think.
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Old 11-27-2018, 07:22 PM
  #35  
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Originally Posted by Poor-sha View Post
Lots of great ideas in this thread, keep them coming. I too am inclined to go with the GS lightened as much as possible with no compromise for street use and more power. A 3300 lb GS with a 700 HP Katech 427 would have the same power to weight as a ZR1 with RVK option. If you can get it stripped GS down to say 3100 or less then it would be like a ZR1 with over 800+ HP.

I've tracked the C7 Z06 and it is a phenomenal track car right out of the box in most every area. The C7 ZR1 is even better but both are really expensive to run due to the weight. I don't feel the weight hurt performance as much as it meant you went through brakes, fuel, and tires faster. For me that was totally acceptable for a car that I could also drive to work or take my wife out to dinner in. Unfortunately something has come up and I won't be tracking the ZR1 any more and I really have no need to have my track car be a street car any more - hence this exercise to see where else I could go. Truth is I considered other cars like the Ariel Atom 4 but I really like the way the C7 drives and have a lot invested in that platform.

As far as suspension goes I am definitely going with the DSC Sport controller and Tractive shocks as I really loved what they did for the Z06 and the ability to tune them with help from TPC Racing. AP Racing brakes and Essex Parts are also a must have for me as they've proven themselves over the last 3+ years on heavier cars and many hours of track time. I took advantage of the black Friday sale to also order a set of AMT spherical bushings.

As for the rest, I'm still listening to hear what you guys think.
Never seen someone so upset about their wife getting cooking lessons. Give her a chance, man

Last edited by village idiot; 11-27-2018 at 07:23 PM.
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Old 11-27-2018, 07:40 PM
  #36  
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Can't wait to see where this thing winds up. Thanks for the business!
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Old 11-27-2018, 08:36 PM
  #37  
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Originally Posted by village idiot View Post
Never seen someone so upset about their wife getting cooking lessons. Give her a chance, man
I gotta admit, that's funny!
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Old 11-28-2018, 11:33 AM
  #38  
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I'm thankful I taught my wife how to cook before I got my z06. She's been doing it long enough now she still wants to go out to eat
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Old 11-28-2018, 04:08 PM
  #39  
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Sean you seem set on the C7 platform, I went through this same process about 12 months ago. Ultimately I went back to the C6 due to concerns over the electronics in a heavily modified car. I still have, at least for now my stock C7 GS Z07 also.

If I had to do it again now a year later I'd still make the same decision and go with the C6(or a tube chassis car). With that said if the choice is a C7 I think you already know that the GS is likely the best option for what you want to do.

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Old 11-29-2018, 09:55 PM
  #40  
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I have a 2018 GS as a dedicated track car that I keep at Spring Mountain where I have a membership. Stock 1LT, no option car. 18x11 and 18x12.5 wheels and I run Pirelli scrubs. I have about 2K miles on the track. Even when it was 110F+ temperatures were at the upper end of reasonable after a twenty minute session. The car is really a lot of fun and incredibly competitive for less than $60K total investment. The weak spot is definitely the brakes. I have nearly plowed into the back of a GT3 that I was trying to get around that a slower driver just over braked. When I'm driving like an a**hole and over-braking I have had the brake pedal go to the floor. I've learned to give up a couple of seconds a lap and spend a helluva lot less on brake pads. I may upgrade the brakes at some point. The rear end of the C7s are pretty loose and when they start to come around, they come around quickly and you tend to loose a lot of speed, especially off the throttle. Some aero for the rear is in my near future. On the long straight at Spring Mountain, if I'm on the rear of a GT3 or a Z06 exiting turn 7, they will only pick up 3-4 car lengths at the end of the straight. More power may make the car more fun to drive but it is not likely to make you much faster. After hearing some of the C7 exhausts at the Porsche Club event there a couple of weeks ago, I definitely plan to do that. Just so I can hear what the engine is doing

I will probably strip the interior of all the unnecessary stuff my next trip down. Reducing weight will have the biggest effect on making the car go faster IMO.

The people that I have talked to say there is no comparison between the C5/C6 and the C7; the C7 is a much better platform.
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