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Ran a modded GT500 570rwhp vs cammed LS3

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Old 11-25-2009, 10:36 PM
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Default Ran a modded GT500 570rwhp vs cammed LS3

OK so here is the tale of the tape:

LS3 vette with cam and all the bolt ons: 487rwhp
Shelby GT500 black w/ gold stripes: 570rwhp

So I ran into this guy asked to run. We had 3 highway runs.
First run 65 to 140 = He pulls 1 1/2 car.
Second run 65 to 140 = about 1 car

We pull over I ask to go from 70 since I am starting in 3rd.
Third run 70 to 140. This time I hit the shifts faster and I was at his back wheel when we shut down. Best run for me I guess you would call that 3/4 of a car.

So now I am curious what do 570rwhp shelby gt500's run / trap speed?

Thanks!
Old 11-25-2009, 10:52 PM
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I would have thought of a different outcome to this race but i would expect low 120s for the gt500 but im just guessing and have no clue on his mods.
Old 11-25-2009, 11:08 PM
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Interesting, because getting 570 rwhp out of those cars is child's play.
S.
Old 11-25-2009, 11:38 PM
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I know.. 570 is probably just bolt ons + pulley.
Old 11-26-2009, 01:25 AM
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You should be around 125 mph trapps and he should be around 126.5 mph trapps with good driving in decent weather...

To bad you guys couldnt take it up to 170 mph....I realize that is totally unsafe but i also realize that around 150ish mph you would start yanking his brick..
Old 11-26-2009, 01:42 AM
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I know I am somewhere around 125-122 traps. Did 94mph in the 1/8th on some no traction nitto invos.
Old 11-26-2009, 09:05 AM
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Nice races, man! Those damn GT500s put down some serious power with next to nothing done. I got pulled hard on the highway by a pulley/supporting mods GT500 earlier this year. THEN I got my revenge at a track rental when we were both there and he couldn't match my 11.7 because he didn't have good tires and I'm assuming wasn't the best driver. Not my fault if you show up at the track without the proper setup!
Old 11-26-2009, 09:13 AM
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Great runs! I would guess that a GT500 with that power would be in the 125 range with an average driver. I bet a great driver could get a bit more out of it as long as it wasn't heat soaked or anything.

Sick vette, btw!
Old 11-26-2009, 11:27 AM
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OK, update apparently he was sand bagging and makes more than 570rwhp:
http://www.dallasimports.net/forums/...owtopic=133969
Old 11-26-2009, 10:37 PM
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I remember the sandbagging days
Old 11-26-2009, 11:52 PM
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Originally Posted by Stopsign32v
I remember the sandbagging days
I remember them well. I've won a lot of money playing that game with cocky kids that didn't know any better. They deserved it IMO.
Old 11-27-2009, 12:29 AM
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Would be interesting to see the real run then without the sandbagging. I don't see the point in it. I'm always down for a fun race. Win or lose, somebody's gotta. Just the fun of the race.

Btw, your c6 ls3 looks sexy and I can't wait to get one after college. That much power on a cam-only setup?
Old 11-27-2009, 04:00 AM
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Nice run man, i dynoed 491rwhp/429ft and ran 95mph 1/8 mile on some bullshi* bgf 300 tread rated tires . Our cars are pretty close. ls2 head/cam exh.
Old 11-28-2009, 11:36 PM
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Would be even more interesting if you could have started in 2nd gear on the 65mph roll-ons. Right in the tip top meat of your power band as opposed to starting lower in 3rd.
Old 11-29-2009, 05:49 PM
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65 in a z51 geared c6 is too high in 2nd.. i tried.. it's right at 6,000 rpm.
Old 11-30-2009, 06:34 PM
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Originally Posted by InsomZ
OK, update apparently he was sand bagging and makes more than 570rwhp:
http://www.dallasimports.net/forums/...owtopic=133969
Knew something didn't add up. I bet he is making over 600 with the way he pulled you. When I read the listed HP levels of both cars i was almost certain I was going to read a kill on your part. I wouldn't be surprised if that GT500 is making upwards of 620 to the wheels.

BTW.....with 490 to the wheels, some good traction and driving you will be near 130mph through the traps. Seen it done with similar power levels. Guy on corvette forum with bolt ons and a G6X3, stock intake and TB went over 131mph in the 1/4.
Old 12-02-2009, 08:49 AM
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Originally Posted by InsomZ
65 in a z51 geared c6 is too high in 2nd.. i tried.. it's right at 6,000 rpm.
That's perfect for a roll race if your tires are up to the task considering you're more than likely shifting around 67-6800.
Otherwise, you're giving up a nice mechanical advantage/starting lower in the rev range/power band.
Old 12-18-2009, 09:12 PM
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Ls3 should trap high 90's maybe hit 100...I trapped low 90's with only headers exhaust cai and tune(408)rwhp....
Old 12-19-2009, 04:24 AM
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Originally Posted by InsomZ
I know.. 570 is probably just bolt ons + pulley.
Depending on the GT500. The 2010s are 540hp out of the factory. They run high 11s, low 12s stock I THINK.. if anything my numbers are under than over.
Old 12-19-2009, 05:57 AM
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Originally Posted by lilbuddy1587
That's perfect for a roll race if your tires are up to the task considering you're more than likely shifting around 67-6800.
Otherwise, you're giving up a nice mechanical advantage/starting lower in the rev range/power band.
No way. That's a wasted shift. There's not enough rpm to mess around
with a 2nd gear start at 6,000rpm.


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