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Old 08-17-2004, 03:01 AM   #1
SpeedyWRX02
Scooby Newbie
 
Member#: 53623
Join Date: Jan 2004
Location: Philly
Vehicle:
WRX 318 WHP
PE1820

Default Final gear ratio on dynos

This might be an obvious answer, but here goes anyway. I was looking at the dyno plots from when I was tuned by Agile Auto and TurboXS. Now on the Agile Auto plot, they used a final gear ratio of 3.79 while on the TurboXS plot they used 3.80. By my calculation I get (FD * 4th) = 3.90 * 0.972 = 3.7908 When I went to TurboXS Nathan told me that Agile was wrong and should have used a 3.80 value... what gives?

Agile Auto:


TurboXS:
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Old 08-17-2004, 02:45 PM   #2
MustGoFast
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Member#: 33370
Join Date: Feb 2003
Location: Milwaukee, WI
Vehicle:
2002 Impreza WRX
Blue now w/ 6 fun flavors

Default

I think your off by .26% about 1/4 of 1% who cares at 400whp this might account for a 1whp difference.. bah!
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