Quote:
Originally Posted by Matt TuneTime
Right the point is there is no way that 5th gen has only 12% loss .. Not even close . For instance Engine dynoed 402 ls motor made 607 at the crank on a superflow engine dyno . Installed in Corvette C5 [ I'm sure all who know whould agree 18% dr loss for 6spd car ] It made 514 whp on our mustang dyno .. that
We have done a large amount of testing as well as baseline runs on SAE Certed motors . Also back to my first post The 6l80e takes more power to turn like a 4l80e so less then a 4l60e
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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.