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Old 10-15-2013, 01:41 AM   #7
kdanner
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Join Date: Aug 2013
Location: Austin, TX
Posts: 178
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Originally Posted by StangFreak View Post

I'm not thinking about changing gears just wondering if its the beast option for the A6 with full bultons because if seen some auto with 3:31 running some impressive times mid to lowe 11s. So does that mean if the exact same car with 4:10s would run better?
The problem with a gear like 4.10 and this trans is traction. I did run a 4.30 for a long time and on the rare occasion it would hook it was badass the way it picked up the front end. The 3.31 just made it a better car, it was just as fast, and it goes down the track every time now. Think of it this way, let's go old school C-4 trans, those had a 2.46 1st gear. The 6R80 has a 4.17. So, 4.17*4.10=17.097 ratio in 1st gear. Now try to get a C-4 the same. 17.097/2.46=6.95. You'd agree a C-4 and a 6.95 is a hell of a lot of rear gear right? That's the same you're getting with a 4.10 and a 6R80. Even the stock 3.15 gear is like a 5.34 axle with a C-4. If you wondered why these automatics run so good, right there is a big reason why. Leave the stockers in it, or maybe change to 3.31 to get the very slightest bit more out of it.
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