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Thread Starter
Racer
Joined: Nov 2004
Posts: 283
Likes: 8
From: fort mitchell ky
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...would an '05 4 speed auto with a 3.15 be quicker than an '06 6 speed auto with a 2.56....what about the '05 with the stock 2.73 compared to the '06. Comparing automatics only ... this doctor doesn't want to shift gears unless it's paddle shift.
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Sometimes the A4 will be slightly faster from a roll, sometimes the A6, depends on the starting speed. They're close to the same from a dead stop, according to Corvette Quarterly magazine & GM.
A4 with 2.73 might be just a little slower from the stop than A4 with 3.15.
A4 with 2.73 might be just a little slower from the stop than A4 with 3.15.
Race Director
Joined: Jun 2000
Posts: 13,733
Likes: 66
From: Hurst, TX USA
The definitive answer is "it depends". It depends on the rpm range you are in when you hit it. If you are in a good power range you will get better performance. The advantage to the A6 is that it is in the best rpm ranges more of the time. The disadvantage is that it has to shift more to get in those ranges. The end result is they are very close, so close that choosing between them is almost a moot point. (This is comparing the 3:15 A4, the 2:73 A4 would be noticeably slower in all rpm ranges). So discounting performance what else is there to differentiate them. Obviously the paddles on the A6. If you want closer control the paddles are the way to go.
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
from another site...
The new A6 tranny is worth 1 tenth of a second in acceleration and 1mph in the quarter mile.
The data also showed (from car and driver) 30 to 50mph and 50 to 70mph are improved...
I think the roll on performance was the benefit of the new tranny.
_________________got this from crossedflags.
The data also showed (from car and driver) 30 to 50mph and 50 to 70mph are improved...
I think the roll on performance was the benefit of the new tranny.
_________________got this from crossedflags.
