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Old 05-26-2003, 02:58 AM   #1
Scooby Specialist
Member#: 22053
Join Date: Jul 2002
Location: North New Joisey
2002 Black WRX Wagon
Stage 3, Element Tuned

Default WHP--> Crank HP, conversion?

Hey kids;

Well, we had our dyno day (dynojet) this Saturday and as you can see by my signature I did pretty well, especially in the torque department. So, I am trying to figure out how to convert these numbers to crank HP.

I have seen a ??X1.15 but that does not seem to add up.

238WHP X 1.15 = 278?
I know the TXS website lists their stage 3 at 326HP.

So is there a definate formula or is it just a guess thing?


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Old 05-26-2003, 03:04 AM   #2
Scooby Guru
Member#: 13831
Join Date: Jan 2002
Location: 99 problems but a bitch aint 1

For a dynojet you can go on about a 20% drivetrain loss, maybe a tad less closer to 15%

so 238 x 1.15 = 273 (your calc needs calibration)
to 238 x 1.2 = 285

inbetween those 2 numbers is a good guess
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