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05 C6 Vs 2010 Grand Sport (Vids)

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Old 09-10-2011, 10:36 PM
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Originally Posted by Delivered
Looks like in gear the gs was pulling for the most part, but dropped a little during shift. Wasn't horrible shifting though. Is the gs catted still? It seems like anytime I left cats on my cars it sufficated them for a good amount of HP.
yeah pretty sure its a high flow cat
Old 09-10-2011, 10:41 PM
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Mine were all high flow cats that I ended up gutting. I have to have cats in missouri for inspection. I saw half second gains in the quarter with an auto trans. Just saying these ls motors love to breathe. Could be something to take into consideration on this race along with weight, etc...
Old 09-11-2011, 09:27 AM
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Originally Posted by TransAmWS.6
Strange, my Dad is looking to upgrade from his bolt-on '07 Z51 to a new Grand Sport very soon, I showed him that video and he was kind of surprised. I always thought myself that a GS with bolt-on's and a tune would be in almost stock Z06 territory.
raced a z06 a few months ago. took it by a car to 60-120...z had both driver and passenger and sucked at driving...I was alone.


Originally Posted by 00silverGTP
actually it does. 40 wheel maybe 1-2 cars in a roll race. and 100-200 lbs is 1-2 cars...

OK I will take your word on that.




either way it was fun. Hopefully casey(ls2 driver) will race some other fast cars, so he can show it wasn't a fluke.
Old 09-11-2011, 09:35 AM
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i used that local car as an example. i'd guess 430 on the low side and expect a near-new corvette with "full bolt-ons" to dyno more. obviously you know what you're doing, just trying to figure out why the races were so close when it appears they shouldn't have been.

what is the gearing difference in these cars? it seems like the gs was shifting while the ls2 car was pulling.
Old 09-11-2011, 12:42 PM
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Yea the cars have to be geared differently, we both have the same gear in the rear end but I think his tranny is geared different.


This is the second ls3 car I have raced and I beat him as well,and it was side by side so but I won by a half a finder.
Old 09-11-2011, 07:02 PM
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awesome videos guys!!! The 05 C6 has beat a a full bolt on ls3 that trapped 121.....I would say it just a very strong vette!!!
Old 09-11-2011, 08:35 PM
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Surprised by the results. Maybe for the price I should opt for an LS2 over an LS3 lol but those GS's are sexy
Old 09-12-2011, 12:15 AM
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Great races guys! Always interesting when the race doesn't go the way it should on paper.

Originally Posted by Delivered
Mine were all high flow cats that I ended up gutting...I saw half second gains in the quarter with an auto trans. Just saying these ls motors love to breathe...
Those seem like huge gains going from high flow cats to straight pipes. My Z28 went from 424 rwhp to 432 rwhp by ditching the high flow cats. Are you sure weather didn't affect the gains?
Old 09-12-2011, 07:47 AM
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Originally Posted by marc97taws6
Surprised by the results. Maybe for the price I should opt for an LS2 over an LS3 lol but those GS's are sexy
I think everyone was lol. Ill trade you my ls2 for your ls3 lol.
Old 09-12-2011, 08:38 AM
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Those seem like huge gains going from high flow cats to straight pipes. My Z28 went from 424 rwhp to 432 rwhp by ditching the high flow cats. Are you sure weather didn't affect the gains?[/QUOTE]



It was one week difference. about same temp. I had similar results with another car of mine but not quite as much (.3) They were magnaflow if I remember correctly. sixty foot was the same. I had numerous people at the track tell me to do this with a large cam or large displacement motor.
Old 09-12-2011, 02:28 PM
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Originally Posted by lilmiller74
I think everyone was lol. Ill trade you my ls2 for your ls3 lol.
Lol, it'll be a few years before that goes into my garage

Actually in hind sight, parents are moving 2-1/2 hours away soon versus the current 45 minute commute to my car, so being in the Greek system in college I'm soon to be without a garage to use
Old 09-12-2011, 04:33 PM
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HEHE!!!.. how bout' dem LS2's... Now, THATS how you drive that LS2...BEAT ER' UP!!!!

Although, I'm sure it would have been different if it wasn't an GS.. 2-300 lbs lighter..
Old 09-12-2011, 04:46 PM
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I have beaten a full bolt on ls3 c6 coup to.
Old 09-12-2011, 06:46 PM
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What happened in round 3? GS mph up top or did the LS2 lift? Seemed like both were on throttle. Good racing....but if I had the guess i'd say the GS was a dude, or has an issue. Shifts seemed better then most on here for both.
Old 09-12-2011, 07:28 PM
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I lifted at 120, what could be wrong with it? It made good power and was just tuned not to long ago.
Old 09-12-2011, 08:53 PM
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Originally Posted by lilmiller74
I lifted at 120, what could be wrong with it? It made good power and was just tuned not to long ago.
nothings wrong with it...lol. people are just not reading the thread. the GS was 200-300 lbs heavier in this race. thats 2 cars....

we cant people put the magazines down and watch a REAL video....
Old 09-13-2011, 01:28 AM
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I think the LS2 was spraying a small shot. :p
Old 09-13-2011, 10:20 PM
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Originally Posted by lilmiller74
I lifted at 120, what could be wrong with it? It made good power and was just tuned not to long ago.
Originally Posted by 00silverGTP
nothings wrong with it...lol. people are just not reading the thread. the GS was 200-300 lbs heavier in this race. thats 2 cars....

we cant people put the magazines down and watch a REAL video....
Didn't read the whole thread,..(never do)... a weight advantage like that, would without a doubt show true,...from a slow speed,...where the weight would matter....sub 140mph,...150 up,...the weight would be overcome by power and aero(or lack of).

200-300 lbs heavier,...who's doing the math?
Old 09-14-2011, 02:19 AM
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We ran to 140 more times than we ran to 120.
Old 09-14-2011, 09:47 AM
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seems to me if there is only 30-40 rwhp difference and the GS wieghing 200 lbs more because of passengers/more gas ect the outcome seems to make sense.

esp considering from 1-2 gallons of gas to a full tank can be nearly a 100lbs



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