Thread: Dyno Thread!!!
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Old September 5th, 2011, 08:16   #33
A5INKY
 
Join Date: Sep 2007
Location: Louisville, KY
Fuel Economy: pretty good
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Originally Posted by A5INKY View Post
...I just emailed the dyno shop (Fast Enough Performance) inquiring about the correction factors, if any, used Saturday...
Got this emailed reply from Chris Koptizke this morning:

"...We use the built in weather station with the intake air probe at the air filter, it also factors in outside air temp, baro, and humidity. The drivetrain loss on your car should be around 35% so your crank horsepower is about 240.( we know this from extensive engine/chassis dyno testing)"

Anyone know if 35% drivetrain loss is reasonable for our cars? IIRC from reading on this forum, 15-20% loss is the usual number.
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