You'll also want to track the year of the car, I believe the 91+ 16V's had a lower coeffiecent of drag due to the cleaner bumpers.


Great idea! If feasable, a higher speed test should be run, so that aerodymenic drag is the main factor, not rolling resistance. I'm glad you brought up the issues of tires and suspension; with enough data points (cars) these effects should average out. However, the largest source of error (tire pressure) should be standardized. Who want to crunch the numbers? Excel should be able to do it, although I have Matlab (with the stat toolbox) at my disposal ;).
Data to include:
car type
tire size and pressure
final drive
suspension lowering
Sounds like fun.
W. Lee Hendrick


-
Brian Wicks
www.vicon.net/~bvw
88 16V GTI G2
86 16V GTI EP
87 Quantum Syncro Wagon HS

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