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Old 10-09-2012, 02:27 PM   #17
Scooby Specialist
Member#: 311781
Join Date: Feb 2012
Location: Canada
2003 WRX w STI V8


Originally Posted by NSFW View Post
I run 92 octane, but I'm still on a stock longblock. I could probably afford to run another degree or three, but I don't want to push it.

AVCS is 25 degrees at 2400, tapering to 0 degrees at 4800.

The latest tables seem pretty reasonable. I'd subtract 2 degrees across the board, do a couple pulls, verify it's not knocking, then try the tables shown. Then again, with your forged pistons, you can probably afford to be less cautious then me.

How much power are you making? TMIC or FMIC?
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