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7M vs 8A

Old 04-19-2018, 10:18 PM
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Default 7M vs 8A

I just read my latest R&T (May 2018) regarding the ZR1.

Something caught my eye. The article includes an interview with Alex MacDonald. What grabbed my attention was his comment when asked which car was faster. He mentioned that the A8 because they have torque reduction in 1st, 2nd and 3rd to protect the first three gears of the manual. SOOO....With all the attention to the recent threads about the 10.18 8A 1/4 and the 10.95 of the 7M, one wonders what a 7M and drag radials would do with the Torque management removed.

I know that Jeremy pulled some amazing 60' times in his 9.XX Z06.

I know....it wouldn't be stock.

So, yes stock for stock, the A8 enjoys better tuning. According to Alex, they lock up the converter and the A8 is programmed to shift as fast as a PDK.

BUT.....add some tire and adjust the torque management and you should see some amazing 60' from good drivers.

I don't know if this was the case for the Z06, but I didn't know that GM handicapped the 7M...No wonder the 7M is slower!

A good driver cannot overcome the computer pulling power 1st - 3rd.

Any comments?
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Old 04-19-2018, 10:43 PM
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I was wondering why the new record at VIR set recently was in the A8 ZR1.
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Old 04-19-2018, 11:33 PM
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I have not heard this, but very interesting.
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Old 04-20-2018, 11:11 AM
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Does anybody know if on the C7 Z06 the tuning pulled power in the manual transmission cars
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Old 04-20-2018, 11:14 AM
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Computers are always faster. Thats not going to change and the gap will just get bigger. I doubt TM has anything to do with the time when the car makes this much power. The 10 speed auto 5.0 Mustang is in the 10's on DR's now stock. Instant gear changes will do that.

Ill take the slower manual. I like to drive my own cars.
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Old 04-20-2018, 12:41 PM
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The TM has been there since the C6 Z06.
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Old 04-23-2018, 10:11 PM
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M7 has three overdrive ratios...
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