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Old Jul 19, 2007 | 04:55 PM
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Default 2008 Automatic

I read that the 2008 C6 with the auto and 2.73 performance axle ratio will outperform the manual on a 0-60 launch. Can anybody verify this ?
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Old Jul 19, 2007 | 04:58 PM
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Originally Posted by b4i4getit
I read that the 2008 C6 with the auto and 2.73 performance axle ratio will outperform the manual on a 0-60 launch. Can anybody verify this ?
According to those slides Conti had the auto will do 0-60 in 4.3 while manual was 4.0.. According the the dyno numbers in other threads the manual was actually putting more HP at the wheels, this would confirm those numbers that the manual was indeed faster.
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Old Jul 19, 2007 | 06:14 PM
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Originally Posted by b4i4getit
I read that the 2008 C6 with the auto and 2.73 performance axle ratio will outperform the manual on a 0-60 launch. Can anybody verify this ?
Not from what I was told. The auto is heavier and while no one will be able to shift faster than the automatic the driveline loss is more significant in the auto on two otherwise equal cars.
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Old Jul 19, 2007 | 06:19 PM
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Originally Posted by b4i4getit
I read that the 2008 C6 with the auto and 2.73 performance axle ratio will outperform the manual on a 0-60 launch. Can anybody verify this ?
Is there such a thing as a 2.73 performance axle ratio?
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Old Jul 19, 2007 | 06:21 PM
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Originally Posted by Night-Train
Is there such a thing as a 2.73 performance axle ratio?
There is for 2008 models.

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Old Jul 19, 2007 | 06:24 PM
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Originally Posted by talon90
There is for 2008 models.
Then what is the 'standard' axle ratio?
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Old Jul 19, 2007 | 06:25 PM
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Originally Posted by Night-Train
Is there such a thing as a 2.73 performance axle ratio?
lol i agree 2.73's being performance gears, hell when i was younger in our 5.0 mustangs those were the FIRST things we tossed for 3.73's or 4.10's.
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Old Jul 19, 2007 | 06:28 PM
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Originally Posted by Night-Train
Then what is the 'standard' axle ratio?
2005 A4 = 2.73
A6 = 2.56
M6 = 3.42

A little different from the C5 days with the 2.73 being standard and the performance axle being a 3.15.
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Old Jul 19, 2007 | 06:35 PM
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In either case , have fun
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Old Jul 19, 2007 | 07:28 PM
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I've read various things about the new A6...is it a new, but similar, design, or is it just a regeared and chipped version of the current A6 that produces better performance? If its the latter, is there going to be an "upgrade" kit?
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Old Jul 19, 2007 | 11:59 PM
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Originally Posted by Cjunkie
lol i agree 2.73's being performance gears, hell when i was younger in our 5.0 mustangs those were the FIRST things we tossed for 3.73's or 4.10's.
The 2.56 is a strong gear ratio in the A6 C6 and the 2.73's will be even stronger! You are looking at the final ratio when you should be looking at the ratio for each gear (not the overdrive gears).
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Old Jul 20, 2007 | 06:38 AM
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Anyone know the top speed for the 2.73?
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Old Jul 20, 2007 | 07:00 AM
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Originally Posted by Sportsdude
Anyone know the top speed for the 2.73?
FAst !
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Old Jul 20, 2007 | 07:06 AM
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Originally Posted by b4i4getit
I read that the 2008 C6 with the auto and 2.73 performance axle ratio will outperform the manual on a 0-60 launch. Can anybody verify this ?
I have read the same thing also. The only difference is that the A6 had paddle shifters and they were using this information to support the new shift points in the new 2008 transmission.
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