NEW Garrett GBC22-300/350: Ultra-high response S15 turbo killer?

[brndck]

Originally Posted by tuzzio

I think SR's can just outflow most internal wastegate designs. Jimmy Oakes had quite a few creep issues with internal gates.

he's also running a DE engine (higher compression than DET) and E85.
E85, as we all know, allows you to run a hell of a lot more aggressive timing compared to pump gas, and while i don't have hard data to back this up, i feel that its contributing to overwhelming the IWG.

Having said that, i just finished installing a GBC22-350 on a customers car (unopened sr20det, ISR FMIC, R35 maf, walbro fuel pump, brand new Nismo 740cc injectors, powerFC, stock manifold, ISR elbow and downpipe, idk what exhaust it is but its 3") and have dyno time scheduled this week with Koji Arai, so we'll see if we run into similar issues. We'll also be on pump gas, and just the 1bar IWG spring, no boost controller yet.