Quote:
Originally Posted by esfourteen
over 20+psi of boost, yes that is likely the case. I've personally run the gt28rs at 18psi on internal wg without any issues at all. With a built engine these cars will produce 650+whp at those levels.
If you are shooting for over that with much more boost, then it might make sense, however I cant imagine many people are looking to go upwards of that, and yet so many run externals. They cost more, and as Ron has noticed, are a pain in the *** to install in our car if you want to recirc. Don't mean to derail, just my .02
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I have no issue with IWGs and I think at lower boost levels they are a good, cost-effective alternative, but when you start to push a ton of air through them they can become an issue since insufficient flow = boost creep = boom. And like I said, I still believe you can get more precise boost control with an EWG as compared to an IWG.
Notwithstanding, on a factory NA engine that isn't built with lower CR, an EWG is probably total overkill. On my old STi I ran between 28-30 PSI on a GT30R and an IWG absolutely wouldn't cut it.
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Car Sold! Pleasure being a part of the Z community.
New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)