Quote:
Originally Posted by JHOOPS2
Multiply the numbers by 1.15 for 15% gain value. ~ 363 hp stock and 400 hp with stage 1 @ the crank "estimated". My 135i did 347hp to the wheels with the JB3 Map 2 only, for reference ~12-13psi iirc.
Also, do they have a version of the map with smoothing set to 5? That will take out a lot of inaccurate variable fluctuation and give you a more precise, or as precise as you can get number. Also set it to STD instead of SAE due to it being a turbo car. Yeah, I own a dynojet.
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That math isn't correct, when there is a drivetrain loss, the number at the wheels is the portion of that (say 85% in this case). By adding back 15% you are getting a skewed number, the proper way is to divide by 0.85 and find out what the number is at the crank.
example: 400bhp car with 15% drivetrain loss would put down 340 on the dyno (400*85%), if you had the 340 on the dyno and added back 15% you would get 391 which is different.