165 MPH C4's
Instructor
Joined: Dec 2004
Posts: 158
Likes: 0
From: Green Cove Springs Florida
Originally Posted by stingraymarc
I have taken my 93 LT1 A4 to 171 MPH...the mods were a dynomax exhaust, upgraded Cam and 1:6 rods. Gearing was upgraded from 2.54 to 3.08, otherwise she might have reached higher speeds...acceleration is completely meaningless in Germany, its about endurance at a high speed. on my sig pic I am at 154 MPH at 4500 RPM. She held between 165-171 for a good ten minutes before I reached some traffic on Germany's A81, the same autobahn used to test Porsches from the plant at zuffenhausen, which is next to Stuttgart. I reached switzerland from southern Germany in 2 hours 
I put the cruise control at 135 and maintained that for about an hour an the A6 to Switzerland. The car is incredibly stable at these speeds, and these were with the GSC's. Nothing like taking on BMW's and Mercedes Benzes as seeing their rev/speed limiter kick in at 150 as I pull away
I put the cruise control at 135 and maintained that for about an hour an the A6 to Switzerland. The car is incredibly stable at these speeds, and these were with the GSC's. Nothing like taking on BMW's and Mercedes Benzes as seeing their rev/speed limiter kick in at 150 as I pull away
I'm jealous as hell! Gotta love the autobahn!!!
Instructor
Joined: Dec 2004
Posts: 158
Likes: 0
From: Green Cove Springs Florida
Had the 95 at about 140, I think it was 138 to be exact on I-295. Surrounded by sport bikes, trying to keep up with them. Not the best move .... if we passed a cop, we were the ones getting busted not the bikes .... they could outrun the cop!!
Team Owner
Joined: Mar 1999
Posts: 89,144
Likes: 3
From: Life's tough, wear a helmet.
I've taken the ZR1 to 136 at Pocono raceway. There was still plenty left in the motor, but it was my first time at that track and I didn't want to push it. I'll go back this year again and see what I can wring out. 
Le Mans Master
Joined: Feb 1999
Posts: 6,470
Likes: 2
From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work
St. Jude Donor '10
At 150mph on an American road, I would think that you would be an instant memory, if anything bigger than a paper cup got in front of the car. We once had a couple of guys in a `85 try that on rt13 in my neighborhood in the middle of the night. The driver lost control at over 120mph, & hit a bunch of cars on a used car lot. You coulden`t even tell the thing was a `vette. I`m just a profiler, ( look fast-drive normal), so I don`t think I`ll ever find out how fast my `87 will go. 
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Race Director
Joined: Apr 2004
Posts: 17,066
Likes: 3
From: Milpitas ca
Originally Posted by C4VetteLT1
From what I've been lead to believe, our C4's are suppose to have a top speed of 165 MPH. I'm just curious if any of you have seen such speeds? The fastest I've ever had mine so far is 135 MPH. Have any of you taken your Vette to it's top speed? If so, what speed did you reach?
It was running quite smooth at 128.
Race Director
Joined: Sep 2001
Posts: 14,681
Likes: 753
From: NEwhere Ohio
quote:
I have very briefly seen 150. The car was still pulling plenty hard too, just couldn't justify having the car impounded and spending the rest of my life in jail just to find out. 150 was kinda accidental anyway.
I actually know of a guy who had his friends fly an aircraft in front of the car down the highway to make sure no police were coming or had setup radar -just so he could make a top speed run of his in an exotic sportscar.
pretty slick.
I have very briefly seen 150. The car was still pulling plenty hard too, just couldn't justify having the car impounded and spending the rest of my life in jail just to find out. 150 was kinda accidental anyway.
I actually know of a guy who had his friends fly an aircraft in front of the car down the highway to make sure no police were coming or had setup radar -just so he could make a top speed run of his in an exotic sportscar.
pretty slick.
Melting Slicks
Joined: Jun 2002
Posts: 2,705
Likes: 30
From: Chesapeake Beach Maryland
2015 C5 of Year Finalist
I'm lookin' through my archived .pdfs, but there was a Car&Driver or Road&Track that reviewed a bunch of HIPO cars back in 1994, they clocked a 93 or 94 LT1 coupe at 173. Some guys have this as their avatar. When I find the article I will put up a link.
Le Mans Master
Joined: Feb 2000
Posts: 9,061
Likes: 214
From: Epping NH
165 MPH in the LT4 racing a Mustang Cobra which wasn't much of a race after 130MPH. The car still seemed to have some left in her. Did it once will never do it again though, the white dashed lines on the road looked solid.
After slowing to about 90MPH (which seemed really slow), the Cobra went blasting by me letting me know I was "Number 1"
After slowing to about 90MPH (which seemed really slow), the Cobra went blasting by me letting me know I was "Number 1"
Thread Starter
Melting Slicks
Joined: Oct 2004
Posts: 3,293
Likes: 0
From: Big Bear City CA
St. Jude Donor '06-'07-'08-'09
Originally Posted by bac22
165 MPH in the LT4 racing a Mustang Cobra which wasn't much of a race after 130MPH. The car still seemed to have some left in her. Did it once will never do it again though, the white dashed lines on the road looked solid.
After slowing to about 90MPH (which seemed really slow), the Cobra went blasting by me letting me know I was "Number 1"
After slowing to about 90MPH (which seemed really slow), the Cobra went blasting by me letting me know I was "Number 1"
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
The absolute fastest I have gone on my 89 auto L98 Vette was 157 MPH @ 4400 RPMS. I kinda think it would have gone faster. Hey, at least I beat a manual, Porsche Carrera 3.6 when I was doing it. Gotta love that feeling of beating a wannabe exotic sports car LOL.
Advanced
Joined: Jan 2005
Posts: 86
Likes: 0
Ive been to 138mph in my stock 92, I could not believe how smooth it drives at that speed, u can hardly feel going that fast. i often get up to around 105 and not really notice until i glance at the speedometer and back off.
Instructor
Joined: Mar 2002
Posts: 120
Likes: 0
From: Bedford TX
187mph indicated in my modified '96 Z51. My wife was asleep in the passenger seat on our way to Vegas very early in the morning (no traffic.) She woke up and started screaming at me to slow down or we would have done well over 190. 
Burning Brakes
Joined: Jul 2004
Posts: 956
Likes: 0
From: Mesquite Nevada
Seen 184 one very early morning on a long stretch w/absolutely no traffic. Wife wanted to know how fast we could go. Still had peddle left and accelerating when we ran out of 'safe' road.
