5000 may be an OK number for exotic and low-volume applications, but is unreasonably high for an engine intended as the regular production fitment, where a conventional automatic of some sort will be the primary transmission fitment behind it. 4000 would have been a much better target - maybe that was what they were shooting for in the Coyote and missed because it would have provided almost no headroom over the 6500 peak power rpm?
Blame should really fall on the original modular engine design and engineering crew for not looking far enough into the future and building in a little more room for bore increases (without involving exotic bore treatments) than they did. Maybe then the 400 HP could have come in a couple hundred rpm or so lower? Did they not study history (221/260/289/302 and 265/283/327/350/400) with an eye to bore increases over the lifespans of those two engine series?
'08 GT coupe, 5M, wheels, tires, pads, fluid, a few suspension mods . . . still almost stock height
'10 Legacy 2.5GT, 6M (hers)
'01 Maxima 20AE, 5M (spare, winter driver)
Last edited by Norm Peterson; 10-23-2016 at 10:54 AM.