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Old 12-29-2012, 11:09 PM   #1
ISMSTI
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Member#: 319415
Join Date: May 2012
Default 2012 WRX STi Stage 1

Hello,

I flashed the Perrin Stage 1 93 Octane map about 300 miles ago. The car feels great and pulls much harder than stock. However, I logged a few WOT third gear pulls and noticed consistent fine knock learning above 2800 rpm. Is this anything to be concerned about? The logs are below:

https://docs.google.com/open?id=0B0P...XRQYVR0X2JxNXM
https://docs.google.com/open?id=0B0P...HlfQm5KWDdBWVU
https://docs.google.com/open?id=0B0P...UhXMm9Va3RPY00
https://docs.google.com/open?id=0B0P...FZOTUJSZ3Y1NVE

The car is stock other than the tune. Let me know if you need any additional information.
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Old 12-30-2012, 09:22 PM   #2
hutch959
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Join Date: Dec 2010
Default

yes... it looks like its pretty agressive and your fine knock learn is consistantly pulling a little timeing in order to not knock.
also, boost is a tad high for a "conservative" stage 1 tune.
see if they can adjust it or give you a 91 octane map.
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Old 12-31-2012, 02:11 AM   #3
ISMSTI
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Join Date: May 2012
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Thanks hutch. I'll contact Perrin and see if they will make adjustments. I can't imagine my car is the only one having issues with this tune. This shows the importance of datalogging and staying on top of your engine's performance. I think tuning is awesome but definitely want to keep the motor running healthy.
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