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C4 ZR1 Track Car: The Beginning

Old 04-30-2015, 10:42 AM
  #41  
Bad Karma
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Very nice. I picked up an 85 that I will be running through to turn into wheel to wheel as well. Hopefully, I don't find anything that stops me like your first roller did. Keep us posted, looks like it will be a great build.
Old 04-30-2015, 11:46 AM
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Shaun R
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Didn't realize my polar opposite was living in the same city as me (your white car). Believe that's the same one I saw out at COTA last month.

Last edited by Shaun R; 04-30-2015 at 11:51 AM.
Old 04-30-2015, 12:44 PM
  #43  
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Originally Posted by Shaun R

Didn't realize my polar opposite was living in the same city as me (your white car). Believe that's the same one I saw out at COTA last month.


Yes...yes it was.

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Old 04-30-2015, 11:23 PM
  #44  
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Originally Posted by 1991Z07
16'...got PLENTY of clearance.

Wow, now that is a garage
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Old 05-01-2015, 12:25 AM
  #45  
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Originally Posted by l98tpi
Wow, now that is a garage
Thanks...it's about 900 sq/ft. of fun space.

I have both cars in there...could store 3 if I want to hang one on the lift.

It was a labor of love...took me a few months to get it done. It's got A/C and heat...a must if you want to actually work on cars down here year round.

My better half got the cabinets for me for my birthday...she IS a keeper.
Old 05-04-2015, 10:24 AM
  #46  
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Spent part of the weekend cleaning out stuff to get it ready for the cage...

Pulled wiring harnesses and other things out of the way for them to get at the mounting points and found about 30 pennies under the passenger seat.

I'm finding a lot of red silt inside the car...the flood deposited some native dirt. Every relay and electronic part will need to be replaced...but the wiring should be good to go.

Fortunately...I have replacements for all the major electronics (ABS Controller, ABS pump, FX3) and replacements for all the dash switches, etc.

Like I said earlier, Winding Road Racing will be doing the cage...they have a lady at the Austin shop who designs/fabricates and she's as picky as myself. She wants it tight into the interior, clean and stout. I've looked at a half dozen of her cages already...a friend had her install one in his 928 LeMons car he calls the PorsChevy (L98-based small block) and the welds are beautiful, the cage is as far away from the driver as possible. Quality work...and only about $500 more than I was figuring it would run. Looking at her work...I think it's well worth it.

She's doing a little research right now to see what else is needed for what I anticipate I'll be doing with the car. Since I have no real plans to go wheel to wheel in this, I won't need to destroy the doors with NASCAR door bars but it will have X-braces in place. She's planning to tuck the top bars up into the roof panel tight away from my head...

About all I have left to do is get the dash loosened so she can move it around while doing the front bars down the pillars.

Got plenty of other things to keep me busy...hope I can have this thing ready for next year if time & money don't run out first.

Last edited by 1991Z07; 05-04-2015 at 10:54 AM.
Old 05-13-2015, 01:57 PM
  #47  
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What wheels are on that beast? Love the mesh look and don't see my knock off zo6 weeks being track friendly
Old 05-14-2015, 09:55 AM
  #48  
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Getting parts is such a hassle for 'older' cars.
Old 05-14-2015, 12:08 PM
  #49  
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Originally Posted by 1991Z07
16'...got PLENTY of clearance.

Beautiful looking setup!
Old 03-03-2016, 03:03 PM
  #50  
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Originally Posted by jlfx car audio
What wheels are on that beast? Love the mesh look and don't see my knock off zo6 weeks being track friendly
The track wheels are CCW Classic's in 18"
Old 03-03-2016, 03:42 PM
  #51  
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We got hit by the Memorial Day floods last year...got the entire ground floor under 4" of water. I put the ZR1 away and started repairs that went all the way to Christmas, but have now pulled the car back over to the shop and started stripping it down.

The rear suspension and D44 are out. I have all the Banski parts for the rear in hand...but I've got to weld the seams on the frame up before that. Should be starting on that next week...waiting for Argon for the TIG.

The cage got shot down by the local shop because I wanted OPERATIONAL windows on this car. I want to be able to roll the windows up and lock it (if it's left at the track) and since I have an open trailer...I want it closed for inclement weather. They wanted to gut the doors and put NASCAR door bars in. I also wanted the INTERIOR in the car (halo covers, door cards, etc)...and they said under those restrictions thanks but no thanks.

And so, I will order an AutoPower weld-in cage and make additions to it I want for additional bracing. Frack 'em...

Last edited by 1991Z07; 03-03-2016 at 03:43 PM.
Old 03-03-2016, 07:17 PM
  #52  
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Originally Posted by 1991Z07
I guess we'll just have to wait & see then, won't we

P.S. There are at least 3 or 4 members in the C4 section using those heads on 427 & 434 Dart motors making well over 650 HP as well...

Also...there was no monkeying with the "numbers"...the engine builder is NOT the dyno owner or operator. They ran it, printed it out, tuned it, ran it, printed it out until it was right. They had a F.A.S.T. tuner flown in to set it up.

Joe White, who OWNS the dyno, is a VERY well respected engine builder in his own right around these parts. He has ZERO incentive to "fudge numbers" on a motor he didn't build.

Thanks for your "professional opinion"...I'll believe what I've seen with my own eyes thank you.
Soooo.....who is right on the torque and HP numbers?
Old 03-03-2016, 08:44 PM
  #53  
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Originally Posted by Reggie Dunlop
Soooo.....who is right on the torque and HP numbers?
Not gonna get a chance to find out...

I'm buying a crate LT1 or LT4 to put in it...with a 3 year warranty. Once that is done I'll do some mods to it and get what I want.

My engine builder had a heart attack and died...so much for that route.

Last edited by 1991Z07; 08-18-2019 at 11:42 AM.
Old 08-16-2019, 11:52 AM
  #54  
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OK...it's been a while since I've been here...life gets in the way sometimes.

So...I'm going to back up a bit. The frame was wrecked so badly on the '92 ZR1 that I traded it out with a '90 ZR1 flood car at Dino's Corvette Salvage.

Here is what we started with...















We swapped out the D44 and front suspension from the '92 onto the '90 and loaded it up on the trailer for the drive home.



Gave her a bath once we got back to get a look...



And parked it in the garage on the trailer for a few days...



It's amazing that for a red car...the paint was still pretty nice for sitting outdoors for years in the hot, southern sunshine.



I built a cart/cradle to hold the body on while the disassembly process was going on...making it easier to move it around.





Time to start tearing it apart...

Last edited by 1991Z07; 08-16-2019 at 11:53 AM.
Old 08-16-2019, 12:12 PM
  #55  
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So, you got this car in 2015, and since then you've put it on a cart to move around? I'm thinkin the chances of this car seein a track is dwindling. Easier to buy a track car than build one...why not just abandon ship and buy something and get out there man. 4yrs done went by!
Old 08-16-2019, 12:44 PM
  #56  
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Default Disassembly...

So now it's time to tear into it...







Found out that the front cross-member had been damaged when the '92 hit the concrete wall @ Ennis.





Not a chance I was going to try anything on that, and so I bought one in great shape from Dino's. After I cleaned it all up...I got the TIG welder out and completely welded the seams on the cradle, and then started out on the frame.



All the seams, all the braces to the frame from the factory were (more or less) tack-welded in place, and the pinch-seams on the frame were all spot-welded every 3"-5"



So after some welding and grinding...we are in primer for the painting of the frame with some Eastwood Epoxy.





Cleaning the car for paint proved to be interesting...must have been 5+ pounds of fine silt inside the frame rails, body panels, etc. I took 2 days and hit it from every angle to clear that all out.



I want to see leaks...so the color of choice under the rear end is white...









Now we lay down a few coats of black epoxy on the frame...









Old 08-16-2019, 12:51 PM
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Originally Posted by K.I.T.T.
So, you got this car in 2015, and since then you've put it on a cart to move around? I'm thinkin the chances of this car seein a track is dwindling. Easier to buy a track car than build one...why not just abandon ship and buy something and get out there man. 4yrs done went by!
I've got a lot done...just have to balance work and cashflow.

In the interim...we also go hit by the hurricane in Rockport, which completely totaled our beach house. In the meantime...I have another toy that's been added to the stable, so now I have a pair of Z07's (nearly 20 years apart)...so I have options for "playing" until I get this done.



P.S. Anybody can "buy" a car, but it certainly isn't going to be exactly what you want.

This car will have everything I want...even if I have to wait for it.

Last edited by 1991Z07; 08-16-2019 at 01:19 PM.
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To C4 ZR1 Track Car: The Beginning

Old 08-16-2019, 01:03 PM
  #58  
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While I've had it all apart...I've been cleaning and polishing...

Front suspension:










Dana44:






















Old 08-16-2019, 01:15 PM
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Default Stopping Power:

So...after driving a C7 Z07, I knew I needed those brakes on this car. I found a great deal from Rich @ Abel Chevrolet...and bought these:







Since it's a track car...I went with GiroDisc steel Z07 replacement rotors.



As impossible as it seems...the front uprights needed VERY little work to make the rotors/calipers fit. The holes were about 1.5MM too narrow on the original uprights. Some work with a die-grinder to make them a little more "oval" and we had them sitting pretty.



And about a 3/16" spacer between the caliper and the knuckle and we were set.







Old 08-16-2019, 01:28 PM
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So, now it's time for the rear of the car...completed DANA44 installed:



Vansteel coil-overs:



Banski rear rods:



Time to start assembling.














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