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07-13-2006, 10:36 AM
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#1
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Join Date: Jan 2006
Location: south carolina/Butler N.J part time
Posts: 450
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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
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07-13-2006, 10:40 AM
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#2
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Keyboard Tough Guy
Join Date: Jul 2004
Location: Trenton, NJ
Posts: 6,341
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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.
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07-13-2006, 11:25 AM
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#3
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Join Date: Jan 2006
Location: south carolina/Butler N.J part time
Posts: 450
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we just did one down here and it went upwards of 180 cause the dyno shut down once it hit the 180 mark
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07-13-2006, 11:32 AM
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#4
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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They dynoed an auto in 4th gear? Or were they just trying to see what the top speed would be?
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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07-13-2006, 12:47 PM
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#5
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Keyboard Tough Guy
Join Date: Jul 2004
Location: Trenton, NJ
Posts: 6,341
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also a dyno doesnt load the vehicle nearly as much as on a 2 mile stretch of road would...not to mention wind resistance.
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07-13-2006, 01:51 PM
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#6
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Join Date: Jan 2006
Location: south carolina/Butler N.J part time
Posts: 450
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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
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07-13-2006, 02:31 PM
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#7
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Keyboard Tough Guy
Join Date: Jul 2004
Location: Trenton, NJ
Posts: 6,341
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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
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07-14-2006, 03:53 AM
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#8
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10 Second Club
Join Date: Aug 2004
Location: Eastampton
Posts: 4,466
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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.
__________________
1999 MBM T/A - the new ride 
2004 CE Corvette - 1.410 - 10.246 @ 133.39
2003 Silverado - Lifted 6 on 35s
2000 T/A WS6 - 11.190 @ 119.79...SOLD
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07-14-2006, 03:04 PM
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#9
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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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. 
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07-16-2006, 01:37 AM
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#10
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10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
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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
__________________
01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
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