Does anyone have an opinion on the strength of the stock bottom end of a 2013 Ford F150 5.0L? I have a truck here with a Roush stage 2 kit on it. They market it as 570-ish hp (crank). Owner is looking to squeeze some more out of it. I know VMP sells a pulley that fits but I don't want to stress this engine too much if it's already tapped out. Any thoughts or experiences would be appreciated!!
I personally cap the gen1 stock bottom ends off at 650
never a problem yet knock on wood
You mean 650rwhp right? That's what I've always thought as the safety limit for Gen1 Coyote.Originally Posted by decipha
My setup is a VMP GEN2R w/ 85mm pulley. I have the timing maxing at 17-18 degrees. MAF flows 71lbs @ 7100rpm. I'm guessing I'm at around 700 at the crank / 575 at wheel? It's plenty enough for me! D
OP I think you can go to 570 rear wheel hp and still be very safe lol
Knock Retard is the reduction or prevention of knock by lowering ignition timing:
(+) Adding Knock Retard = Reducing Timing. PCM is seeing knock.
(--) Lowering Knock Retard = Increasing Timing. PCM isn't seeing knock.
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2014 Mustang GT Premium. VMP Gen2R Supercharged with an FTI 3000rpm Converter. JLT, BMR, Steeda, Viking, etc.
Don't fix it if it ain't broken | Maximum effort gets maximum results
So knowing this thread is a little old, hp tuners supports the 2013 f150
General opinion is 650whp, but there are no guarantees. I made just under 700whp on my '12, but did not keep it there.
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