I'm guessing the Tial housings fit. ATP lists them as an option for the gen2 3071
Speaking of, no gen2 3067? I see a 2867 and a 3071. But no 3067 for gen2. Is that correct?
Goal of 400+/400+ whp/trq with fast spool and wide power band. 3500-6500/7000 would be perfect. On 93oct pump gas
IAG stage 2 block 2.5L (EJ257)
Stock WRX heads and cams
ID1000 and other supporting fuel mods
Killer-B header (but will need EWG stubbed in)
Gen 1 GTX 3067R 0.82 Tial housing
Or
Gen 2 GTX 3071R 0.82 Tial housing (maybe even .63?)
From what I'm reading, the gen2 3071 is supposed to have significant spool increases vs gen1, but the only discussion I've found is on a VW forum discussing a 1.8l motor.
But if the spool is really that much better, maybe the g2 3071 is the key?