http://www.atpturbo.com/Merchant2/me...egory_Code=GRT

TO4S style 56-trim housed 82mm GT35R compressor with an 84-trim 60mm GT30R turbine in either a .63/.82/1.06 A/R housing.

It should spool better then a straight GT35R due to the smaller turbine wheel, but cause a bit more backpressure.

I'd really like to compare this to Nigels' PFI kit with the modified GT35R to see how it helps spool even more.

Jesus Christ thats expensive. Would that much more backpressure make a significant power loss?

how does it compare to the gt4035R? i cant find the compressor maps for it, all i can find is the gt35R

When you buy a Turbo kit, you want to put quite a bit of the money on the turbo part of it. I think it would be worth it to spend more for a good turbo and wait for some of the smaller stuff until later.

Same compressor wheel, so the map will be the same. Although, Garrett typically uses the middle size A/R housing when flow testing it, so it would be slightly different stuffed into a T04S housing.

Not that expensive.....take a look at HKS for the EXACT same turbos you pay double that just for the name.

That's the roughly the same price for your average T4/60-1 BB you get as the upgrade from PFI so it's not expensive when you consider it's a GT turbo w/ dual ball bearings versus the retrofit that Turbonetics does versus the complete center section.

The fact that it is more or less a direct bolt on for Shadow's car is intriguing though. The turbine housing seems to extend a bit more but we could probably just chop and reweld the downpipe to make it fit. Been slacking off w/ Shadow's car a bit since it's too cold to work on it but w/ a few dyno days coming up we'll see if we reach the limits of the T3/60-1 at 10psi within a few weeks.

I would think the BB and more efficient compressor would be nice to have once we're in the 12-15psi range.

Exactly what I was thinking, might be close to P-N-P for PFI guys too.

Turbonetics = single BB and custom housings, which don't compare to Garretts.