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Old 03-20-2012, 03:21 AM   #1
EODMonkey
 
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Join Date: Jan 2009
Location: freehold nj
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so close yet so far

so i figured i'd put my car up on the dyno to see where things were at, thinking it was running pretty well.. boy was i wrong. i knew i had an issue with fuel pressure under boost, i'd see about a 5psi loss under full boost but good a/fr numbers. so we hook my car up and first pull she chokes at 5500rpm, so we check the data and i couldn't believe my a/f was 15:1 when all along my wideband was showing 10:1 under boost and no knock. so after adding an additional 40% in fuel up top to bring the numbers down we saw my fuel pressure dropping into to mid 40's and figured it was time to call it quits until i upgraded the fuel system some more. really not what i had expected to see but so far she put down 650tq and 610hp not really good but i guess since i ran out of fuel pressure i cant complain. just got my new wideband sensor in and now i'm planning out the fuel lines and fpr. if its not one thing its another.
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