NG bolt on turbo upgrade?

David duandcc_forums at cox.net
Fri Jan 2 12:19:17 EST 2004


Hey all,

I'm considering going to forced induction on my NG powered CGT. I know it's possible as others on the list have done it. But just how involved would it be to turbo an NG compared to something like a MC swap? Accoring to the research I've done, if I use a 20V head on my otherwise stock NG bottom, it should come out to a 8.6:1 CR, which seems just about right for turboing. I don't want to run massive amounts of boost, as the car is FWD. I've heard that a 20V head & turbo on an N series bottom end when tuned properly using an EFI package can be good for rediculous amounts of power, something like 450-500?! I am thinking I'd be more than happy with 180-225 hp in my little CGT. From my perspective, it sounds like it would be easier to turn my 10V NG into a 20V turbo NG hybrid, but I'd love to hear the opinions of those more knowlegable than I on this (which is just about everybody). Also, would it be possible to continue to use my knock sensing CIS-e III system? Or would that be far more trouble than it's worth? As I said, I don't want/need to run tons of boost. Oh, I would not be trying to install all this myslf.  I would gather the information & parts, then have it bolted together by a shop. I hope to convince the good guys at AudiConnection that this is a worthwhile project and that they should be the ones to do it, they are only 1/2 hour away and seem to have a very good reputation.

TIA,

Dave
87.5 CGT
SE Virginia



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