With e85 it seems you won't need to rebuild to reach atleast 250rwkw... I'm running 10.5psi I've done 40000ks so far motor is stock
Mods :
Rb25 turbo, power fc
Just jap cooler, Just jap split dump+front pipe
Trust exhaust, nismo fpr, gtst injectors, walbro pump, 52mm radiator, exedy clutch
It's holding up 200atw tuned on 98, but with e85 I may get 0 knock and run a bigger turbo without pinging and get more power
So I'll be a test mule for you guys r33 rb25de+t on e85
But that's a few months away so once I start on it I'll post results and what was done....