Forum: C4 ZR-1 Technical Postings
04-05-2023
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Replies: 16
Views: 2,455
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Forum: C4 ZR-1 Technical Postings
11-17-2022
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Replies: 2
Views: 5,084
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Forum: C4 ZR-1 Technical Postings
11-17-2022
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Replies: 2
Views: 5,084
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Forum: C4 ZR-1 Technical Postings
11-14-2022
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Replies: 5
Views: 6,805
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Forum: Cleaning and Waxing
11-09-2022
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Replies: 9
Views: 5,265
Re: Best Car Wax for Fading Paint
I paid a professional $500 to spend 7 hours on paint correction of my black '90. He made my 32 year old paint look like a brand new car. There is no way I could have matched his 30 years of...
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Forum: C4 ZR-1 Technical Postings
10-29-2022
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Replies: 9
Views: 4,206
Re: Crankshaft cup plugs
Marc is wealth of knowledge too.
I think Phil has the answer here. He really helped me out recently with an unobtainable part. Great guy!
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Forum: C4 ZR-1 Technical Postings
10-29-2022
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Replies: 9
Views: 4,206
Re: Crankshaft cup plugs
It doesn't seem to be a common failure, but I've heard of two. One was a stroked stock crank that was apparently nitrided with the plugs in place and developed a rear plug leak. Nitriding may have...
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Forum: C4 ZR-1 Technical Postings
10-28-2022
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Replies: 9
Views: 4,206
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Forum: C4 ZR-1 Technical Postings
10-28-2022
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Replies: 9
Views: 4,206
Re: Crankshaft cup plugs
That's probably a good question for Graham.
When pulling seals in motorcycle engines, I drill a small hole in them, then screw in a sheet metal or wood screw. Then grab the screw with vice grips...
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Forum: C4 ZR-1 Technical Postings
10-18-2022
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Replies: 8
Views: 1,992
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Forum: C4 ZR-1 Technical Postings
10-17-2022
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Replies: 8
Views: 1,992
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Forum: C4 ZR-1 Technical Postings
10-06-2022
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Replies: 10
Views: 1,773
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Forum: C4 ZR-1 Technical Postings
10-06-2022
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Replies: 10
Views: 1,773
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Forum: C4 ZR-1 Technical Postings
10-05-2022
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Replies: 10
Views: 1,773
Re: Throttle Cable Brackets?
Talked to Carter and he can custm make brackets for two cable 90-92 cars that will mount on a 93-95 plenum. Solves the bracket problem when swapping a 405hp plenum on to a 375hp car.
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Forum: C4 ZR-1 Technical Postings
10-05-2022
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Replies: 10
Views: 1,773
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Forum: C4 ZR-1 Technical Postings
10-04-2022
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Replies: 10
Views: 1,773
Throttle Cable Brackets?
I'm installing a '94 LPE plenum on my '90 and apparently the throttle cable hold down brackets are different from the earlier cars. Would anyone happen to have a spare set of 93-95 brackets for sale?...
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Forum: C4 ZR-1 Technical Postings
09-24-2022
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Replies: 16
Views: 3,353
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Forum: C4 ZR-1 Technical Postings
09-21-2022
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Replies: 2
Views: 3,806
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Forum: C4 ZR-1 Technical Postings
09-21-2022
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Replies: 2
Views: 3,806
Plenum fitting
I have an LPE plenum that's missing the driver's side coolant fitting. The little L shaped macaroni doohickey. Would anyone happen to have a spare, before I turn to fabricating something?
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Forum: C4 ZR-1 Technical Postings
09-21-2022
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Replies: 3
Views: 3,372
Re: Exhaust Removal
If you place a floor jack in the right place, the whole catback will balance nicely. The center of gravity is near the rear spring loaded mounts on a Corsa.
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Forum: C4 ZR-1 Technical Postings
09-19-2022
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Replies: 26
Views: 7,213
Re: 0W40?
Rotella T6 5w40 is a good option if you're looking for a 40wt synthetic oil with a lot of zinc.
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Forum: C4 ZR-1 Technical Postings
08-22-2022
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Replies: 24
Views: 12,102
Re: A/C blower fan won?t turn off
The ac fuse may not stop the blower. The blower is wired directly to the battery through a fusible link. The power feed to the blower control module is always hot.
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Forum: C4 ZR-1 Technical Postings
08-21-2022
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Replies: 24
Views: 12,102
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Forum: C4 ZR-1 Technical Postings
08-21-2022
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Replies: 24
Views: 12,102
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Forum: C4 ZR-1 Technical Postings
08-19-2022
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Replies: 2
Views: 5,586
Re: Part Number?
Thanks Jerry! Found new on ebay for $8. Common part for several GM models.
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