Forum: C4 ZR-1 Technical Postings
04-01-2025
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Replies: 25
Views: 14,950
Re: Dreaded Upper Cam Chain Guide Failure
Since this seems to be related to the chain tensioning system, could the problem be low oil pressure or blocked oil passages?
I removed the cam covers from 90 #116, which was flooded, abused and...
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Forum: C4 ZR-1 General Postings
03-24-2025
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Replies: 36
Views: 19,400
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Forum: C4 ZR-1 Parts For Sale / Wanted
03-11-2025
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Replies: 8
Views: 14,270
Re: WTB connecting cap AC compressor
That cover is the compressor manifold. There are 2 different types. One for R12 (90-93) and one for R134a (94-95). Both fit the compressor, but have different mating surfaces to the hose assemblies....
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Forum: C4 ZR-1 General Postings
02-20-2025
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Replies: 74
Views: 26,987
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Forum: C7 ZR1 General Postings
01-16-2025
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Replies: 3
Views: 28,695
Mecum Kissimmee
Just watched 4 2019 ZR1's go for over $200K each. All low mileage cars. Whew.....
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Forum: C4 ZR-1 Technical Postings
01-07-2025
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Replies: 9
Views: 5,896
Re: Wheel hop issues
Just checked my build sheet... All bushings were replaced with Super Pro bushings, front and rear.
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Forum: C4 ZR-1 Technical Postings
01-07-2025
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Replies: 9
Views: 5,896
Re: Wheel hop issues
Mark replaced all my bushings a couple of years ago with the purple poly ones. I'll take a look at the shock bushings. Although converted to coilovers, those bushings may be originals.
Sent from...
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Forum: C4 ZR-1 Technical Postings
01-02-2025
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Replies: 9
Views: 5,896
Re: Wheel hop issues
Have had this issue since I got the car. Both with stock fx3 suspension and fx3 coilovers.
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Forum: C4 ZR-1 Technical Postings
01-02-2025
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Replies: 9
Views: 5,896
Re: Wheel hop issues
About 4 year old PS2s. Been the same since they were new. Hot or cold doesn't matter.
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Forum: C4 ZR-1 Technical Postings
01-02-2025
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Replies: 9
Views: 5,896
Wheel hop issues
Whenever my tires break loose, I get severe wheel hop. Is this typical? I cringe every time because I don't want to break something. Any fixes? Thanks.
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Forum: C4 ZR-1 General Postings
01-01-2025
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Replies: 3
Views: 844
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Forum: C4 ZR-1 General Postings
12-05-2024
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Replies: 37
Views: 19,082
Re: Membership Renewal
Done.
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Forum: C4 ZR-1 Technical Postings
11-25-2024
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Replies: 17
Views: 4,891
Re: Anyone changed their injectors themselves?
Not hard. Just have to take your time and be careful not to nick any of the o-rings.
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Forum: C4 ZR-1 General Postings
10-31-2024
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Replies: 74
Views: 26,987
Re: Gathering 2025 and MR11
Reservations made for the Gathering.
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Forum: C4 ZR-1 General Postings
10-22-2024
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Replies: 74
Views: 26,987
Re: Gathering 2025 and MR11
The link: %ZR-1 Net Registry and Grand Sport presents: C4 Gathering, does not go anywhere.
Is there a better link?
Thanks
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Forum: C4 ZR-1 General Postings
08-28-2024
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Replies: 12
Views: 5,843
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Forum: C4 ZR-1 General Postings
07-27-2024
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Replies: 13
Views: 9,435
Re: Corvettes at Carlisle 2024
Got mine today. See you there!
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Forum: C4 ZR-1 Technical Postings
07-19-2024
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Replies: 21
Views: 24,699
Re: Secondary fuel pump dead?
Yes. I split the holder down one side. Secured with tie wraps.
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Forum: C4 ZR-1 Technical Postings
07-16-2024
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Replies: 11
Views: 19,982
Re: Fuel pump bypass Switches
I have one of the "emergency" harnesses that the Wazoo group makes. Plugs in between the tank and tank harness when needed. Switches primary pup power to the secondary pump.
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Forum: C4 ZR-1 Technical Postings
07-16-2024
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Replies: 21
Views: 24,699
Re: Secondary fuel pump dead?
I got the high flow pumps as I'm pushing around 560 crank hp.
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Forum: C4 ZR-1 Parts For Sale / Wanted
07-07-2024
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Replies: 2
Views: 2,049
Re: WTB - 1992 OEM BPPA Memcal Chip
I was able to source a replacement from Jerry's.
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Forum: C4 ZR-1 Parts For Sale / Wanted
07-01-2024
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Replies: 6
Views: 5,418
Re: WTB: Secondary Port Solenoid
Maybe Pete has some. He's been clearing out his collection of parts on Facebook.
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Forum: C4 ZR-1 Technical Postings
07-01-2024
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Replies: 32
Views: 27,210
Re: 1992 Upper Radiator Shroud Removal
I didn't have an issue with mine. Make sure the intake assembly is in the correct orientation. Hose should just slip on.
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Forum: C4 ZR-1 Technical Postings
06-29-2024
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Replies: 32
Views: 27,210
Re: 1992 Upper Radiator Shroud Removal
I don't remember how I did it since it was several years ago. Probably the same way you managed it. Getting the spacers in will be another challenge.
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Forum: C4 ZR-1 General Postings
06-21-2024
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Replies: 13
Views: 9,435
Re: Corvettes at Carlisle 2024
I wonder if this year's Caravan is taking some folks away.
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