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Old 02-27-2011, 08:25 AM   #8
moonme1017
Scooby Newbie
 
Member#: 238535
Join Date: Feb 2010
Chapter/Region: MAIC
Location: Virginia Beach, VA
Vehicle:
2004 04 WRX
Flat Black

Default

I have the 03 JDM V8 STI motor with AVCS and the twin scroll VF37, i have heard that the JDM motors are tuned to run on US gas (93 oct) and that they will knock and could cause catastrophic failure eventually. I did a couple runs and logged them, and as soon as i start boosting in 3rd, it is definitely knocking. Are you aware of anywhere i can find a basic tune for this motor on US gas, or do i need to just pull my timing?
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