Quote:
Originally Posted by Simisimi
My Tuner has done thousands of tunes, mostly on Subarus of all types, and tells me that the FA20 with dual fuel systems and FI is one of the most challenging tunes he has encountered. In the end we seem to have a very lively and stable car at 9PSI but he believes this is very near the edge of compromising long term reliability. My AVO went in at 2000 miles and I've got 4000 more since then. So far, aside from an issue caused by the common failure of the OEM high pressure fuel pump, it's been solid. When you consider the engine output is nearly double factory spec it's remarkable. Time will tell!
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A 9psi ceiling seems pretty low but not surprising. Your numbers are very solid for that boost level though, is this on 93?
I can't imagine the headache tuning these cars must be.
Quote:
Originally Posted by robr
Here's one of humpre's graphs. From memory, he has an AVO kit with upgraded wastegate (still wasn't holding too well up top), 3" exhaust, whatever the normal AVO downpipe size is, Perrin intake. He can chime in if I have any of that incorrect. Tuned by ATS Racing.
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Thanks for posting, I checked out ATS and it looks like they specialize in MR2's, are boxers something they deal with a lot?