BMill705
Well-Known Member
I've seen some tuners say that they are wide open at 2000-2500 rpm.
IMRCs aren't doing anything at 3,100rpm at WOT???
Would have been nice to see the pulls start at 2,000RPM.
What we really need to see is a Power Pack 3 GT350IM vs a tuned 2018GTIM with IMRCs enabled. That would be a better comparison like the motoiq article showing PP2 vs PP3. Using the same tune across all 4 manifolds with IMRC disabled keeps things constant, but it's also abstract when the better flowing manifolds would gain more in the bottom and mid range from IMRCs than stock or the F150 manifold.
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