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Old 02-20-2021, 01:27 PM   #1
darkturbo
Scooby Newbie
 
Member#: 50219
Join Date: Dec 2003
Vehicle:
2003 Evolution VIII

Default 2.5 STI block with 99 impreza 2.2 heads

Hello Im in the beginning phase of planning my motor build.

1999 outback wagon 2.2l engine, rod knock

Planning a build and found someone selling a machined .020 over 07 STI block with crank/forged rods near me. I plan to get forged pistons for the setup.

I am wondering if I can run my stock 2.2 heads.

I also have a stock 2.5 N/A motor out of an 01 forester I am considering running instead.

Either way, I plan to put wrx or sti or XT stock turbo with custom headers/up/downpipe and STI TMIC

The other thing I would consider is an 02-05 WRX swap but I haven't been able to find a donor car.

What engine management options do I have? If I go with the Frankenstein build or N/A 2.5 l motor and turbo it, can I use a piggyback system? AEM EM4? It seems COBB doesnt work with older models than 02. Can my oem computer be flashed for opensource programs?

Only looking to make 8-10 psi (if I cant use the 2.5 STI with forged internals). Would SAFC work with my non turbo ecu along with a boost controller?

Sorry I have tried some searches. Patience is appricated!

Love friends
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