Quote:
Originally Posted by Nabush
LOL 
I know perfectly how a dyno works buddy and what an SAE number means (DIN in my case since I'm European). Are you a mechanical engineer ?
Do you know a lot of European manufacturer used to under rate their motor ? VW was famous for that, it is nothing uncommon...
It is notorious dynos are unaccurate, we even don't know if the yearly calibration is done every year as recommended by the manufacturer in each shops, depending of the brand the precision is more or less, but by giving several numbers from different dyno brand it gives you a baseline
Yes everyones knows that Dyno can only make a more or less an estimation of the engine power because it's difficult to determine precisely the drivetrain losses....
But since LT1 gives between 400-410Whp and the Coyote 420 to 430Whp average in stock form....
And since the transmission losses should be close, (Ford doesn't use straight cut gears ) ....it is likely one is more powerful than the other |
LT1s have been anywhere from 401 to 431 or higher depending on the dyno. As you mentioned dynos are laughably inaccurate. SAE certification is not. If Ford says 460 than that engine is 460. Give or take a percent. BMW used to test their cars completely heatsoaked and that led to many believing the engines were underrated. I don't think they do that anymore.