r0ckf1re
Well-known member
Fordkoppie said:1Kw = 1.34Hp
@ 1300m altitude you can deduct about 18% on the flywheel and another 20% for RWD.
In essence you can almost deduct 45% from the manufacturers flywheel claims and that will be what you see on a hot day (30degC) for a RWD car on the wheels with no correction factor.
That is if the dyno has been calibrated properly which 99% of them are not
Not so much on a turbo car, nore like +/- 5%