Quote:
Originally Posted by THE EVIL TW1N
superflow dyno's read quite high from what I've seen.
as an example, here is a superflow dyno of an 03 Cobra motor with a pulley only (basically, my set up)
thats 583 HP and 574 TQ. And that equals out ~450-460 rwhp. BS. That would mean a GT500, that makes 500 SAE certified hp and makes ~440 rwhp, really makes 550+ HP? I don't think so, otherwise there wouldn't be an SAE Certification program. Same goes with the LS3, LS9, LSeverything. EVERY engine that has been certified.
I will agree with you that an engine loses 20-20+% when going from a superflow dyno to chassis dyno, but a superflow dyno is not what is used to rate HP in the SAE Certification program and also is not the dyno used to calculate factory engine HP's. |
Using your gt500 example [ solid axle less loss ] 500hp crank = I have stock graphs from 410-430 but I have 2 at 422 whp.. so 422 X 1.18 = 497 Why is this wrong ?
As for the superflow engine dyno they do have an SAE setting and we request it is used and our results seem to be within 1-2% ..
Also keep in mind a 3000lb roller can't create an equal a load esp on a 4000lb car .