It depends on the dyno you dyno your car on. A mustang dyno will put out a smaller whp rating than a dynojet. Also depends on air temps, elevation, gears and what not! since I have a 12 bolt rearend with 3.93 gears i lose about 10whp.
I have had people look at my dyno sheat and it is where it should be. If I were to dyno it on a dyno jet it would be about 425. I can get more info on dyno's and why they differ, if you wish.
|