Let's get this discussion going. Please keep it on topic, and try not to suggest other ways to achieve similar power and turbo spool-up results. I'm going to PM MJU1983 and All8up to get their participation.one cannot beat just dropping in a factory motor for say 1300 $ or so. It will spool those stage 4 WRXs like stock or better! We are testing out the results of STi 2.5 and WRX heads with USDM STi cams... that would be an awesome semi cheap upgrade.
-Mike (MJU1983) :wiggles:
What exactly comes with an STi block?
What other parts would you need to make this happen?
Would a custom UTEC map be sufficient engine management?
Is a VF30/34 too small for this application?