11.5 Tune only
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St. Jude Donor '11
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No change in tires? The 60ft times these cars are pulling are outrageous for stock. If LS3 vettes could have hooked like this there would have been a lot more stock guys in the 11s as well.
The A6/M7 discrepancy sucks. Chevy made the autos in particular launch so well that it's not a contest. Competing with GTRs at this level (competing, not winning).
The A6/M7 discrepancy sucks. Chevy made the autos in particular launch so well that it's not a contest. Competing with GTRs at this level (competing, not winning).
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Shift time is no big deal if you can really row the gears. M7s should logically have less parasitic loss and put down more RWHP, plus have a gear ratio advantage.
The 60ft or 330ft race is really the whole 1/4, and hooking hard there can even juice up your 1/4 trap speed. Wouldn't be surprised to see a stock M7 pull on a stock A6 from a roll.
Safety Car
Joined: Nov 2007
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From: Bay Area CA
I think your math might be off on that...sticks finish the 1/4 in 5th while the A6s finish in 3rd?
Shift time is no big deal if you can really row the gears. M7s should logically have less parasitic loss and put down more RWHP, plus have a gear ratio advantage.
The 60ft or 330ft race is really the whole 1/4, and hooking hard there can even juice up your 1/4 trap speed. Wouldn't be surprised to see a stock M7 pull on a stock A6 from a roll.
Shift time is no big deal if you can really row the gears. M7s should logically have less parasitic loss and put down more RWHP, plus have a gear ratio advantage.
The 60ft or 330ft race is really the whole 1/4, and hooking hard there can even juice up your 1/4 trap speed. Wouldn't be surprised to see a stock M7 pull on a stock A6 from a roll.
Last edited by Mike's LS3; Nov 14, 2013 at 11:49 AM.
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To be clear, I'm not the guy saying M7s shift 4 times in the 1/4 or that M7s finish the 1/4 in 5th gear. I posed my response as a question to highlight the problem with the claim. I've never driven a C7 but of course assume that an M7 finishes the 1/4 in 4th, which I assume is the 1:1 gear. Wouldn't be surprised to learn that M7s and A6s both actually shift 3 (and only 3) times in the 1/4 mile.
Le Mans Master
Joined: Jul 1999
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From: Chicago IL
No change in tires? The 60ft times these cars are pulling are outrageous for stock. If LS3 vettes could have hooked like this there would have been a lot more stock guys in the 11s as well.
The A6/M7 discrepancy sucks. Chevy made the autos in particular launch so well that it's not a contest. Competing with GTRs at this level (competing, not winning).
The A6/M7 discrepancy sucks. Chevy made the autos in particular launch so well that it's not a contest. Competing with GTRs at this level (competing, not winning).
The performance version of the C7 is going to be unreal
Le Mans Master
Joined: Jul 1999
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From: Chicago IL
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I didn't say it was...but it would have been in many cases if it had been capable of cutting low 1.7 60ft times on stock tires as the C7 can do. It's pretty obvious the big difference is in the launch here. We're talking about 20-25 rwhp more in the C7 but also about 100-200 lbs of additional weight, so the power-to-weight ratios aren't radically different (but obviously better for the C7).
Also keep in mind that we're receiving news of C7 runs in November, not July. Some good DA out there now. There is a substantial difference in straight line performance between the LS3 C6 and the C7, but a large part of that is simply in the launch.
Also keep in mind that we're receiving news of C7 runs in November, not July. Some good DA out there now. There is a substantial difference in straight line performance between the LS3 C6 and the C7, but a large part of that is simply in the launch.
Le Mans Master
Joined: Jul 1999
Posts: 5,109
Likes: 334
From: Chicago IL
I didn't say it was...but it would have been in many cases if it had been capable of cutting low 1.7 60ft times on stock tires as the C7 can do. It's pretty obvious the big difference is in the launch here. We're talking about 20-25 rwhp more in the C7 but also about 100-200 lbs of additional weight, so the power-to-weight ratios aren't radically different (but obviously better for the C7).
Also keep in mind that we're receiving news of C7 runs in November, not July. Some good DA out there now. There is a substantial difference in straight line performance between the LS3 C6 and the C7, but a large part of that is simply in the launch.
Also keep in mind that we're receiving news of C7 runs in November, not July. Some good DA out there now. There is a substantial difference in straight line performance between the LS3 C6 and the C7, but a large part of that is simply in the launch.