Ok my setup: log manifold (probably), external tial style wastegate at 8 psi, 3'' exhaust, 2.5 - 3'' downpipe, JRC 8'' intercooler (i think, not sure how fitment is on this one), greddy type S BOV....type R cams...

My question: Which t3/t4 should I go with? I would like crazy top end...however I would also like good spool.....plz don't tell me to go with a ball bearing turbo because I have a budget here. Should I go with a 50 trim or 54 trim?

Any idea how the 54 trim would spool? This is a daily driver.....however my goal is to get 270-280 whp on 8 psi.

How much difference is the spool time on the 2 turbos and how much different will the top end be?

 

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If you HP goals are no higher than that go with the smaller trim. The 54 trim will spool just fine though. Also depends on what compression and cams you are running. Are you running oem int manifold and what turbo man you use will make a diff also. The higher compression the quicker the spool. I prefer using a 9.5 - 10 comp for a street car. You can make an equal hp ammount on a lesser amt of boost vs. a car that is running a 8-1 comp.

 

Yeah i was thinking the 54 trim would be fine.

The b16 is completely stock....so 10.2:1 c/r....

Do aftermarket manifolds help spool time? Like an AEBS or something?