2018 F150 3.5 dyno results and question

[V8_Kind_Of_Guy]

I wanted to post results and some questions. I just tuned a 2018 F150 3.5 with e85 and @ 20 psi and put down 496 rwhp and 582 rwtq. I was wondering how hard people are pushing these motors. I have seen online someone put down 511 rwhp and 600 rwtq but didnt mention how much boost.

[V8_Kind_Of_Guy]

Soooo...maybe what Im asking is what is....how much boost is everyone running their F150s?

[skylinedan]

I can get 27 lbs with my 2.7 Fusion Sport, but that's wasn't the intention, LOL. I,m trying to keep it to 20 22 tops. I watch my engine torque in data, and I can make over 550 on less than 20. Pulled a 564 at 19 last night doing a roll at 45 then flat footing it to 65. I would say keep it at or just slightly over that and you should be good unless you want to push it a bit harder.

[BBBm3]

Try tapering the boost off to ~17psi to redline and bring more timing to in to alleviate cylinder pressure drop after peak torque.

My 3.5 liked that more than 20psi across the board. I was on e50ish not e85 though.