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      03-05-2006, 01:08 AM   #3
sdorn
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Drives: 2006 Jet Black 325i
Join Date: Feb 2006
Location: Atlanta

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1. What is zsp?

2. You are supposed to dyno in the gear closest to 1:1, but it won't give way out of line numbers if you dyno in another gear. The final drive ratio also goes into the equation, and not all cars have the same final drive ratio. The dyno measures torque, and torque isn't affected by the transmission or the final drive ratio.
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2008 Sparkling Graphite 535i
2009 Land Rover LR2
2003 Porsche 911 Turbo (SOLD)
2006 Jet Black 325i (SOLD)
2001 Bullitt Mustang (450rwhp - SOLD)