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Originally Posted by R4ND0M_AX3
Just out of curiosity.... Did Mike measure the RPM at the engine or did he just use wheel speed? If wheel speed is used to determine engine RPM was it modified for each car or just left at some generic multiplier/ratio?
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You can't leave it measured off of the roller speed for different cars, that would not work and would give some funny readings.
All cars are setup on the dyno, rolled, restrapped, rolled again than set at 3k in the gear being used to dyno in.
We do not use any weather correction, tried it once found the results to variable to uninstalled the contraption and threw it away. Our Mustang is configured off of one setting so cold weather will come into play as will hot weather (like real world, cars with cooler air make more power).
I hope this helps somewhat, personally I think the headers, uppipe and turbo are the differences.
Mike