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Thread: 4.56 or 4.11?
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03-21-2006, 01:12 AM #1
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- Sep 2005
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- owasso ok
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- 38
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- 66
silver- 1998 z28
4.56 or 4.11?
I have a 98 A4 with 80k miles. Car will have lt headers, lid, ls6 intake and a 3800 stall. What gears would be best for a daily driver? 4.11 or 4.56? What would my RPMs be at with each at 60-70mph? What gas mileage do you all see with these gears?
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03-21-2006, 08:25 AM #2
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- Jul 2005
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- Jacksonville, FL
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My brother has 4.10's and a high stall in his car, says he wished he would've gone no higher than 3.73, but that's just him. I originally had 2.73 and got a deal on a complete 3.42 rear out of an M6 car and happy (lost an average of 5 MPG). To see what your RPM/MPH will be see the calculator at www.f-body.org/gears/
A4(3.42)TA Cover/Nittos/Vig 3200/Corsa Catback/FTRA/BMR Boxed SFC, STB, ACLA, APHR/Predator Custom Tune...
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03-23-2006, 05:34 PM #3
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- Dec 2002
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- n/w chicago
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- 54
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black- 2000 nhra edition formula
nothing bigger than a 3.73 on an automatic trans car for daily driving.
to top it off, with what you are looking to do, youre going to need a 12 bolt rear.2000 nhra edition formula
a few bolt ons, 379 rwhp
11.96 @113.25
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