Lt1 top speed question
TECH Enthusiast
Joined: Jul 2008
Posts: 732
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From: Miles City Mt
Yeah, I was being chased by a friend in his TA, I was on my 07 R1 (Power Commander, Gutted Y-Pipe, Two Brothers Exhaust) we were on a long *** strait away and I hit 183 and still had more. He told me he was pegged out almost and I was gaining major distance on him. So I would say around 160-65
Cars that weren't equipped with z-rated tires had a speed limiter...don't remember exactly what it was. And just so you guys know, I read that technically all fbody's are speed limited...but it's set at 255mph, lol.
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Verdad Gallardo vettes used to come w/ 3.42's, not sure what they come w/ now..
I wonder if that is something they did for obdII because when i was on my stock tune i was able to exceed 145mph without bumping into a limiter and my car originally came with ZR rated tires as well
I've hit just a tad over 170 in my car tached out in 5th with 3.42's and 275/40/17 tires. Not bad for boltons. But thats the absolute most it could do. I just dont have enough power to keep pulling in 6th.
but she's a healthy 9.8 :1 355 right now. 
Haha no not trying to be a dick at all man. I was just curious where i would be at. I dont know how fast iv gone because i dont know my rear gears and our speedo's only go to 155.
Thread Starter
Staging Lane
Joined: Oct 2008
Posts: 66
Likes: 0
From: gibsonia pa
how Many of you will end up as a pancake on the side of the road I wonder?
Ls1s with z rate tires a limited from the factory to 160mph so I would think lt1
with z rated tires would also be 160 or slightly lower
Ls1s with z rate tires a limited from the factory to 160mph so I would think lt1
with z rated tires would also be 160 or slightly lower
Last edited by mtuggle86; Mar 4, 2009 at 01:56 AM.
Also the viper uses a 3.08 because it has the trq to pull it
My 95z, heavy mods, supercharged ect, I stopped at 164 MPH in 4th gear racing a 07 Lingenfelter Z06, and yes I was in front
. Wont do that again on the street, IT IS STUPID and Dangerous...
. Wont do that again on the street, IT IS STUPID and Dangerous... 
pretty sure the laws of physics would not allow an F-body to hit 270mph.
the veyron (1.5 million dollars) can barely hit 253mph ;]
according to top gear, the tires would wear bald in 12 minutes at those speeds, but thats okay because you'll run out of gas in 5 minutes ;]
the veyron (1.5 million dollars) can barely hit 253mph ;]
according to top gear, the tires would wear bald in 12 minutes at those speeds, but thats okay because you'll run out of gas in 5 minutes ;]
Yes that means a 3rd gen firebird is more aerodynamic than a Veyron or any other car on the planet. And a 4th gen aint too far off, have faith in your f-body.