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      03-08-2006, 12:03 PM   #5
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Drives: E90 330i 6MT
Join Date: Nov 2005
Location: Torrance, CA

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Originally Posted by sdorn
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.
ZSP = Sport Package.

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