Reply to "Subie Engine Modifications"

Banzai Pipeline

IaM-Ray posted:
I have been looking at what can be done with a Subie Normaly Aspirated Engine to increase it's Horsepower.
I have been looking at the 2.5L DOHC but mostly the 2.5L SOHC.
From my conversations with well known builders on both sides of the border the 2.5L DOHC could be made to provide 220-230hp but the SOHC seems to not be able to provide more than a solid 200hp maybe a few more but they are unwilling to quote any higher. Now, some say that using a stock ECU when it is not the same year as the engine may cause you to downgrade the engine and not be able to use the Variable Valve Timing which would penalize you greatly.
BTW All aftermarket ECU's will operate the two selenoids that operate the VVT.
Just saying ... still investigating and feel free to add to this.

AZP INSTALLS in Kenilworth, New Jersey are brilliant SUBARU race guys thumb

6/12/185:37 PM

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