Patrick, I'm considering a GT6765 BB .63. On the compressor housings, is there any compelling reason to go with one over the other? I am specifically looking at the E and S housings. FWIW, I have "3000 stall" 9/11, though it regularly goes 3200-3400 when I boost up at the line... higher at times
I ask because right now I have a 4" CAI leading to a 3" MAF and pipe to a PTE-52 with the 3" inlet. All good, but the 2" outlet feeds 2.5" IC piping. Seems like a waste, but is it worth the expense to go to a 4" inlet in order to get a 2.5" outlet? I mean, what would be the appreciable gain in regards to spool up or power?
As I see it, with the S housing I would also need to get a 2.5 turbo to IC hose, a 4" MAF pipe like the
Buickgn.com 4" INLET Pipes with the insert to get down to the correct ID for the MAF. I suppose at that point I might put in a 3.5" MAF... why choke it with a 3"?
Your, or others', thoughts?