View Single Post
Old 05-24-2015, 05:10 PM   #1
VADER SS L99


 
VADER SS L99's Avatar
 
Drives: 2013 A6 GT 5.0
Join Date: Nov 2009
Location: Edmond, OK
Posts: 2,909
Disappointed at no 7 speed manual?

I keep reading that people are disappointed that the 6th gen is not getting the TR-6070 7 speed in favor of the TR-6060 6 speed. Why is this? Did you think it had better gearing for performance? Did you just want 3 overdrive gears? Did you think it was a stronger trans? Does it shift better? Did you want it for better mpg?

I bet most of you thought that the 7 speed had more forward gears and better ratios for performance. I'm here to tell you that the 7 speed has 4 forward gears just like the 6 speed. The 7 speed just has a extra overdrive.

Look at the 7 speed ratios

1st-2.97
2nd-2.07
3rd-1.43
4th-1.00
5th-.71
6th-.57
7th-.48

Now look at the 6 speed ratios

1st-3.01
2nd-2.07
3rd-1.43
4th-1.00
5th-.84
6th-.57

As you can see the gearing is almost identical other than the fact that the 6th speed has a little stronger 1st gear and no 7th gear. Torque capacity of the 7speed is only 20ftlbs better. Considering the TR-6060 has gone in such cars as the ZL1 and GT-500 I think it will be plenty strong for a 6th gen SS. As far as shifting, well I wouldn't know. I guess you would have to drive a C7 and then a ATS-V back to back. The only real thing I see it helping is mpg and that's a maybe.
__________________
BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.
VADER SS L99 is offline   Reply With Quote