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#31 | |
![]() Join Date: Nov 2016
Location: New Brunswick
Posts: 952
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It's not bragging if you can back it up. And with a stock ZR-1, it doesn't seem we can. But, it seems the Corvette guys really believe that it could, and I trust them on that. Something happened between the last prototypes and the production cars, and I'd like to know what it was. Especially with how easy it is to get the needed power out of a mildly tweaked LT5. My guess is either accounts or last minute emissions. Ive Been talking to some of the GM testing guys, and hope to learn more soon. They certainly hit some very impressive numbers in late prototype testing, which could have made it a serious contender for worlds fastest production car in 1989.
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1990 ZR-1 # 996 "All Corvettes are red. The rest are mistakes." - John Heinricy |
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#32 |
![]() Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Maybe there also lies the reason why they refuse to hand out the dyno sheets? Big promise they couldn't keep in production runs?
Doesn't matter today and will not jeopardize the achievements or make car and engine any less desireable. But for sure this would have had a high s**tstorm potential back in the 90's. Sent from my SM-G991B using ZR-1 Net Registry mobile app
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ZR-1 #638/1991 |
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#33 | |
![]() Join Date: Nov 2016
Location: New Brunswick
Posts: 952
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Could very well be. A bunch of power was lost between the prototypes used for testing, and the production cars. The dyno sheets might show exactly that. Even if the peak numbers are the same, there are a lot of changes that can dramatically effect the performance of a car. Could they have tweaked the prototypes to run better then production cars? They could have. But I really doubt they did that. This car was very much an exercise in the Corvette team showing the world what they could do. I'm sure they built a ton of reserve into it to meet whatever goals they set for it.
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1990 ZR-1 # 996 "All Corvettes are red. The rest are mistakes." - John Heinricy Last edited by Erik; 08-19-2021 at 07:44 AM. |
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#34 |
![]() Join Date: Mar 2015
Location: New Zealand
Posts: 384
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Hi All my ZR-1 does 12.515 @114.79mph in the 1/4 mile a friend worked it out with the weight of the car that my LT5 is making about 430hp @ the flywheel so if you lose .5 of a second in the 1/4 at altitude which is 50hp you down to about 380hp just rough figures and I got to 184mph so the ZR-1s that would do the 1/4 mile in 12.9 second would be able to do the 180mph my car did 13.5 seconds on the 1/4 when I first got the vehicle so room for improvement on the driving but I don't think .5 off my time the book in the pizza box say the ZR-1 should be able to do the 1/4 in 13.5 I do think that a good stock ZR-1 would be able to do 180mph on a good day and if you have a long enough road as the LT5 keeps pulling at the top end
Glen Sent from my SM-G998B using ZR-1 Net Registry mobile app Last edited by gtcollins@maxnet.co.nz; 08-19-2021 at 08:15 AM. |
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#35 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,696
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Gotta think Graham knows.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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#36 | |
Join Date: Jun 2019
Location: MA
Posts: 27
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Ive been to Queenstown and Cromwell when visiting in laws and enjoyed my brief time in NZ. Jason |
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#37 |
![]() Join Date: Mar 2015
Location: New Zealand
Posts: 384
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Hi glad you enjoyed the video's South island is very nice place to visit love going down there have taken my ZR-1 down there
Glen Sent from my SM-G998B using ZR-1 Net Registry mobile app |
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#38 |
![]() Join Date: Feb 2013
Location: New Concord Kentucky
Posts: 179
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#39 |
![]() Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,168
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My 91 did 326rwhp bone stock in 02 with 12k miles.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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