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Old 02-22-2013, 09:17 PM   #18
cummins990
Scooby Specialist
 
Member#: 245156
Join Date: Apr 2010
Location: Howell MI
Vehicle:
2005 STI
Silver

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i have been working on this problem for a few weeks now and figured I would share my experience so far.

I have tried the iaperformance kit and had no luck. I then tried to add another damper on the feed line which then gave me 2 dampers on the feed line and had no luck. It was better with 2 dampers but had to add quite a bit to the compensation tables. With all this being said I have left the old style FPR and one damper on the return line. I then went with one damper and the 3' hose and this worked well but didn't like the coiled up hose under the hood. The last think I could think of doing was removing all the dampers on the feed line completely and zeroing out the comp tables. No dampers on the feed line with the old style FPR and old style damper seemed to do the trick, it will still need a very small amount of tweaking of the compensation tables but this is the best and cleanest fix I could come up with. Only other thing I would want to try is a full fuel rail set up but that cost some $$$$.

There is a kit out there by lucas performance concepts which is a kit that removes all dampers and has the old style FPR. I would buy that before an iaperf kit.
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