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Old 07-31-2008, 12:29 AM   #1
inyoface59
Scooby Newbie
 
Member#: 95972
Join Date: Sep 2005
Chapter/Region: MWSOC
Location: omaha
Vehicle:
2002 wrx
psm

Default help me choose a turbo

im going to build a ej25 with 9:1 compression ratio pistons, more then likely stock rods and cranks

for the heads im going to either use my 2.0L heads ported a ton or grab some 2.5l heads and port them, then 272 cams and a lightweight valve train.

first.. should i use stock size valves or go +1mm?

also, what turbo should i use. right now i have a vf 30 but i want to go a little bigger. im looking to only push 15 psi with this motor. im looking for a faster spool and alot of TQ down low for daily driving.

lets hear your ideas...

this is going in a 02 psm bugeye

--Phil
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Old 07-31-2008, 02:31 AM   #2
wrxsti.l
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Member#: 156973
Join Date: Aug 2007
Chapter/Region: International
Location: Adelaide, Australia
Vehicle:
2002 ADM WRX STi
STi Black/Blue

Default

If you are rebuilding your engine then do it right and do it once

There really is not much difference in cost between stock conrods and pistons and a good set of aftermarket forged pistons.

Food for thought
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Old 07-31-2008, 11:54 AM   #3
inyoface59
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Member#: 95972
Join Date: Sep 2005
Chapter/Region: MWSOC
Location: omaha
Vehicle:
2002 wrx
psm

Default

ya, forged pistons are going in for sure, im still debating whether i want to put aftermarket rods in or not.

thanks for the input though
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