top speed of a head/cam ls1?
 

what should it be im not talking trap speed im talking 2 mile stretch what kind of mph should it top out at in a auto with 373s

6000 rpm would be ~175mph with 3.73's in 4th gear...stock speed limiter on most ls1's is 160 but with a decent heads/cam setup you should be able to theoretically hit that at the very top of 4th gear.

we just did one down here and it went upwards of 180 cause the dyno shut down once it hit the 180 mark

They dynoed an auto in 4th gear? Or were they just trying to see what the top speed would be?

- Justin

also a dyno doesnt load the vehicle nearly as much as on a 2 mile stretch of road would...not to mention wind resistance.

we had already dynoed it so we wanted to see what top speed would be, and yeah i definatley know what youre saying about the wind resistance.... just be nice to have a 200mph camaro lol

http://www.ls1tech.com/forums/showpo...0&postcount=38 this guy's gone 178 with stock gears in 5th gear through an m6 obviously. This was a medium(224 duration) cam only setup

Way back when I was bolt-ons I went 150 in a 2 mile stretch on the street. I'm sure if I had the set-up I had back then I wouldn't have any problems hitting 160-170, but I would never do it. After doing 150 on a deserted backroad at 3 am I decided to never do that again. It's too dangerous.

i would suggest you look up ht eeast coast timing association. they run at an old airport in maxton , VA. it is about a 1mile shot on nice concrete with plenty of shut down and bail out area. :)

i kid you all not, but with just a lid/catback free mods m6 stock gears, had the speedo pegged in the T/A with the tachometer reading 5700 rpm i wish i had a gps or something. dunno how accurate this site is for high speeds, but i went on http://www.f-body.org/gears/ and it said 172mph and never again will i go that fast!! (just one of those things you know, i had to see what the car could top out at). Before the 4.11s, hitting 145+ was not a problem. But i'll stick with 1/4 miles now its a lil slower that way