ls1's top speed
01-09-2006, 01:02 AM
#41
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ok, ive hit 152 in my 3.23 a4. Thats at about 6000 rpm, so she isn't gonna do much more... The m6's could easy hit that 162.
Oh, and in Ford vs. Chevy the game, my supped up 6spd 02 SS hit 190!!! lol
Oh, and in Ford vs. Chevy the game, my supped up 6spd 02 SS hit 190!!! lol
01-09-2006, 01:04 AM
#42
Originally Posted by Roarin_8
Use this calculator and 2.73 will keep going past 180, those are very tall gears.
http://www.f-body.org/gears/
http://www.f-body.org/gears/
01-09-2006, 01:48 AM
#43
i have had my car up to 140 with the t-tops off and i would say around 170-175 ish with the car closed up. all i know is that i was running with a guy in a supra and he said that he pulled from me at around that speed.
01-09-2006, 01:16 PM
#44
Originally Posted by spec_j
i have had my car up to 140 with the t-tops off and i would say around 170-175 ish with the car closed up. all i know is that i was running with a guy in a supra and he said that he pulled from me at around that speed.
01-09-2006, 01:28 PM
#45
Originally Posted by infinitebird
The gear allows it yes, but there's no way the car would pull to 180 with 2.73s without some serious power mods.
01-09-2006, 07:23 PM
#48
^^^weak sos, not even a quarter mile 
My 2 cents:
Wow, I'm surprised there hasn't been an affirmative answer here. The day my buddy's '99 M6 ss (w/ oem zr goodyears, duh) hit 1,000 miles (in '98
) we DEFINITLY hit a speed limiter a few rpm's after the speedo maxed out at 155.
I haven't hit my own yet. Been there before, so why go back unless I'm showing a stang my new chrome badges on the rear end? I'll have an HP tune anyway so bye-bye limiter.
I also would say that that an un-limited ss or ram-air would do well over 168, as someone said above. They are just pulling too hard when the limiter comes on!
My 2 cents:
Wow, I'm surprised there hasn't been an affirmative answer here. The day my buddy's '99 M6 ss (w/ oem zr goodyears, duh) hit 1,000 miles (in '98
) we DEFINITLY hit a speed limiter a few rpm's after the speedo maxed out at 155.I haven't hit my own yet. Been there before, so why go back unless I'm showing a stang my new chrome badges on the rear end? I'll have an HP tune anyway so bye-bye limiter.
I also would say that that an un-limited ss or ram-air would do well over 168, as someone said above. They are just pulling too hard when the limiter comes on!
01-10-2006, 12:41 AM
#49
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I just hit my speed limiter yesterday. Nice Sunday morning, not too much traffic on a nice 6-lane road. Just stood on the gas and hit it pretty quick.
I was at about 5500-5600 rpm which according to that f-body gear calculator of my car is about 166-169, speedo(wildly innacurate after 100) was right about where 160 would be. It kicked back pretty hard too, I was surprised.
Also my father when he first got her took her out with two undercover Z28's he worked with. One paced them the other ran along side him. The Z's were A4 and **** out at 155, the radar read the Formula at 172, and after correcting for the deflection it was calculated to be doing 169mph.
So it's safe to say an M6 F-body with Z-rated tires is capable of at least 160mph by all acounts, how much over that? Not more than 10mph more. So somewhere in the 160-170 range, which is more than enough on American built roads.
I was at about 5500-5600 rpm which according to that f-body gear calculator of my car is about 166-169, speedo(wildly innacurate after 100) was right about where 160 would be. It kicked back pretty hard too, I was surprised.
Also my father when he first got her took her out with two undercover Z28's he worked with. One paced them the other ran along side him. The Z's were A4 and **** out at 155, the radar read the Formula at 172, and after correcting for the deflection it was calculated to be doing 169mph.
So it's safe to say an M6 F-body with Z-rated tires is capable of at least 160mph by all acounts, how much over that? Not more than 10mph more. So somewhere in the 160-170 range, which is more than enough on American built roads.
01-10-2006, 02:16 PM
#50
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Originally Posted by RPM WS6
I can assure you, an LS1 Z28 does not shut down anywhere near 108mph. 
I believe it is closer to 115-118 though.
And a stock 6 speed F-body will not go much more than the fuel cutoff on level ground.
Blake
