How fast?
Melting Slicks
Joined: Dec 2005
Posts: 2,017
Likes: 169
From: SE VA VA
So my brother in law came over for Thanksgiving. Got to show him my first Vette for the first time. He liked it alright, but when he saw the 200 mph speedometer he said there no way these cars can do over 130 (yeah, that brother in law). So to enhance my discussion - and hopefully bragging rights - next time I see him, what is an expected top end for a 2003 fully stock Vette? I know I could take on the track and find out myself, but I'm not quite ready for that. What do you guys know?
The tires are designed for speeds up to 200.
Given wind resistance and all that jazz, the theoretical top end is about 170.
IIRC, at 125, the windows no longer operate (because the pressure change would blow the roof off)
I can tell you from experience the computer is programmed to turn off the engine at 190.
I can also tell you at least once, that programming has failed.
The results were not pretty.
====
It was a top speed run on a dyno.
Car shut down at 192, would not restart.
11 melted/stretched valves.
Because the computer is programmed to shutdown at 190, not 192, it was determined to be computer failure; GM bought me a new engine under warranty.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
When my Z was stock but for LTs, my wife told me to "get on it" on a deserted stretch of interstate. Hit 165 and let off, but it was still pulling. Would have kept in it, but I passed a cop going the other way.
Racer
Joined: Aug 2008
Posts: 498
Likes: 100
From: New Jersey
Douche, jealous, and stupid 
My 1991 Talon TsiAWD (older Eclipse's twin) speedometer pegs at 145 mph and I've had it buried MANY times.
I can also attest to the front end of a C5 getting light but I didn't feel it until the 160's. I backed off at 167 mph. Damn near stock 02 manual, 5th gear.
Racer
Joined: Mar 2013
Posts: 477
Likes: 48
Burning Brakes
Joined: Aug 2013
Posts: 954
Likes: 100
From: Lehigh Valley PA
2022 C5 of the Year Finalist - Modified
Last edited by 57gman; Dec 2, 2018 at 08:34 AM. Reason: Spelling
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Burning Brakes
Joined: May 2006
Posts: 865
Likes: 53
Le Mans Master
Joined: Jul 2011
Posts: 7,429
Likes: 973
From: Morristown New Jersey
Oldtimer
Since I have heads up and Apple Car play this app is a little redundant for me, however, as a techie, I’ve tried it and it’s pretty neat. I have not explored it fully yet, but I like that it records one’s ride.
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
For those who are from the Pocono's area, a bunch of Vettes I was with did a group run of 150-160 on the beginning stretch of I-380 north coming off I-80. It was verified by the first car getting clocked by a police car at 162 mph. The rest got a free pass, he only got a ticket and no jail time. Never will do that again.
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
"In the day" road tests showed C5 coupes at 175 mph. C6's up to 185.
Lingenfelter twin turbo C5 (back in 1998 or so) exceeded 200 mph at the Ohio TRC - 226 in fact.
https://www.motortrend.com/cars/chev...-lingenfelter/
Lingenfelter twin turbo C5 (back in 1998 or so) exceeded 200 mph at the Ohio TRC - 226 in fact.
https://www.motortrend.com/cars/chev...-lingenfelter/
Le Mans Master
Joined: Jul 2011
Posts: 7,429
Likes: 973
From: Morristown New Jersey
Oldtimer
I wasn't going to post on this thread but I'll reply anyway. My car is mildly modded. Headers, Honker, full exhaust, minor other tune upgrades and an ECS tune. Caravaggio aero upgrades. Taped up every crease, gap, etc. I actually hit 171, still pulling but I had to shut off. It's really interesting how the faster you go the slower you accelerate.
For those who are from the Pocono's area, a bunch of Vettes I was with did a group run of 150-160 on the beginning stretch of I-380 north coming off I-80. It was verified by the first car getting clocked by a police car at 162 mph. The rest got a free pass, he only got a ticket and no jail time. Never will do that again.
For those who are from the Pocono's area, a bunch of Vettes I was with did a group run of 150-160 on the beginning stretch of I-380 north coming off I-80. It was verified by the first car getting clocked by a police car at 162 mph. The rest got a free pass, he only got a ticket and no jail time. Never will do that again.