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2005 C6 LS2 vs 2003 Cobra

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Old 06-14-2017, 08:25 AM   #1
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Default 2005 C6 LS2 vs 2003 Cobra

Ran across an old bad *** race video with a few cool guys. Vette is cat back only. Cobro is pullied and bolt ons.

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Old 06-14-2017, 08:58 AM   #2
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Looks like the Cobra was heatsoaking with each run
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Old 06-14-2017, 12:48 PM   #3
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ditto...poor performance vs a basically stock c6
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Old 06-15-2017, 06:16 PM   #4
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Cobras are known for poor performance.
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Old 06-16-2017, 12:32 AM   #5
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Looks about right for a heat soaked 2.8 Eaton with an intake and a catback. Sweet find fury.
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Old 06-16-2017, 12:15 PM   #6
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Looks about right for a heat soaked 2.8 Eaton with an intake and a catback. Sweet find fury.
Not my fault that Furd gave them shitty heat exchangers. Even on the first run it barely beat a stock ls2.
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Old 06-16-2017, 03:34 PM   #7
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I think the vette guy got up on the wheel and started driving after the 1st run. That looks to be the biggest difference to me.
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Old 06-16-2017, 05:02 PM   #8
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I have been in and out of 03/04 Cobra's since 2004. The Cobra heat exchanger isn't that bad, but that sure did seem like a **** load of heat soak for a stock blower and upper only. Either way he won some and lost some. Such is life. I trapped 122 with the same mods as that guy.

For reference, I didn't notice any difference on street pulls between my stock heat exchanger and the Afco on the new car, and the old car had only the stock heat exchanger and I never really had heat soak, especially on street runs where the car was cruising in between runs.

The real sad part of this story is that both of those cars would WALK retardfury.
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Old 06-16-2017, 05:25 PM   #9
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I have been in and out of 03/04 Cobra's since 2004. The Cobra heat exchanger isn't that bad, but that sure did seem like a **** load of heat soak for a stock blower and upper only. Either way he won some and lost some. Such is life. I trapped 122 with the same mods as that guy.

For reference, I didn't notice any difference on street pulls between my stock heat exchanger and the Afco on the new car, and the old car had only the stock heat exchanger and I never really had heat soak, especially on street runs where the car was cruising in between runs.

The real sad part of this story is that both of those cars would WALK retardfury.
You trapped 122 upper only with stock exhaust?
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Old 06-16-2017, 06:08 PM   #10
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You trapped 122 upper only with stock exhaust?
stock manifolds and stock cat back with off road x
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Old 06-16-2017, 06:33 PM   #11
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JP trapped 121 with 2.76, x pipe, catback, intake, TB, tune. But he had an aftermarket heat XC I think.
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Old 06-16-2017, 06:46 PM   #12
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Originally Posted by ITSTOCK View Post
I have been in and out of 03/04 Cobra's since 2004. The Cobra heat exchanger isn't that bad, but that sure did seem like a **** load of heat soak for a stock blower and upper only. Either way he won some and lost some. Such is life. I trapped 122 with the same mods as that guy.

For reference, I didn't notice any difference on street pulls between my stock heat exchanger and the Afco on the new car, and the old car had only the stock heat exchanger and I never really had heat soak, especially on street runs where the car was cruising in between runs.

The real sad part of this story is that both of those cars would WALK retardfury.
That's a really good trap for those mods, I would have been pleased as punch with that. Was that full weight? I've heard/seen 120+ traps for upper only cars, but I never got there myself. The best I could muster on my old 2.8 setup was a 117, but that was with a midpipe, catback, and a jlt. Your experience with the AFCO h/e is interesting, I experienced noticeably less heat soak on the street with the AFCO unit, even before the fans. Between that and a big mouth expansion tank, I was OK at the track.
And you're right, both cars in the video would probably buttfuck redfurry.
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Old 06-16-2017, 07:13 PM   #13
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My buddy's pulled 03 Cobra ran much better than this one. When he was upper pulley only I'd pull him slightly from a roll, but when he did the lower pulley and a stage 4 port he'd pull me ever so slightly. He trapped 121 with upper pulley and 124 after the ported setup
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Old 06-16-2017, 07:14 PM   #14
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My buddies 04 only did 118 with catback, cai, 2.8, tune.
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Old 06-16-2017, 08:21 PM   #15
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I call bs on his 122 with those mods only.
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Old 06-16-2017, 08:29 PM   #16
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Full weight plus some.

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I call bs on his 122 with those mods only.
Good for you. It went 126 with a ported blower.
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Old 06-16-2017, 08:33 PM   #17
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Quote:
Originally Posted by Srt4King View Post
That's a really good trap for those mods, I would have been pleased as punch with that. Was that full weight? I've heard/seen 120+ traps for upper only cars, but I never got there myself. The best I could muster on my old 2.8 setup was a 117, but that was with a midpipe, catback, and a jlt. Your experience with the AFCO h/e is interesting, I experienced noticeably less heat soak on the street with the AFCO unit, even before the fans. Between that and a big mouth expansion tank, I was OK at the track.
And you're right, both cars in the video would probably buttfuck redfurry.
​​​
Full weight plus some. there are lots of low 120 upper only cobras. The problem with heat soak (not to mention blown engines) has always been high speed runs, or repeated high speed runs. Also, I usually run at the track in good air, so the heat exchanger doesn't do much anyway.

Here is my whipple car last year with a really simple full weight setup. It's gone a couple tenths faster, same mph. The afco didn't change iat2's on the street or the track, but I run a little underhood ice tank at the track. I'll find some videos of my eaton car and post them.



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Old 06-16-2017, 10:02 PM   #18
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Bahahahaha I would rape both of those cars silly. ITSTOCK is an idiot.
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Old 06-16-2017, 11:27 PM   #19
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I think they both go faster than 0-100 in 16 seconds
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Old 06-16-2017, 11:43 PM   #20
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Proof that my car goes 0 to 100 in 16 seconds?
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