sorry I know this is the racing forum but This is the forum were Ifind the people are most knowledgable.. LOL. seriously..

ok here try to stick with me here

Most STI's dyno stock between 225-230 at wheels right. that equals 300 HP at the crank (25% drivetrains loss) so this is the math. 300 Multiply(x) 0.25 equals 75 and u add 75 to 225-230 u get 300 HP make sense? Or u take 230 devide that by 0.75 u get exactly 306 which is crank HP

Now my STI dynod exactly 230 2 times when it was stock.

After My Dowpipe , full exhaust , ecutek and boost set to 19.5 psi

I dynod at 273 at wheels..NOW U take 273 devide that by 0.75 which equals 364 which is my crank HP. or I take 364 Multiply(x) that by 0.25 which equals 91 ADD 91 to 273 and that equals 364!!

which is my final HP # at the Crank!!

Not bad huh... lol I hope u can follow this and correct me if I'm wrong.. but i did include the 25% drivetrain loss

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