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Scion tC 1G Forced Induction Turbo and supercharger applications...

quick fuel question

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Old Feb 11, 2008 | 05:21 AM
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ok I have an aftermarket A/F ratio gauge and I was wondering at WOT it reads about 12.00-13.50

is that good or bad? im thinking it had a little bit to much air ... i still have stock injectors and im looking at going bigger....

when the car idles she bounces between 14.5-15.7 is this fine?
Old Feb 11, 2008 | 05:22 AM
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hopefully your gauge is wideband, if not then it's not reading anything corectly.
Old Feb 11, 2008 | 05:26 AM
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Some ppl will say that at WOT ur running a little lean since the IDEAL reading for the TC should be 11.5. Mine was running around 12.3 but am getting retuned so I dont know wat it'll be. Idle seems right.
Old Feb 11, 2008 | 02:20 PM
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Sounds a tad lean for a boosted car at WOT.

At idle 14.7 should be fine.
Old Feb 11, 2008 | 06:26 PM
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hrm ok ... i adjusted my injection map and its weird between 28-3500 rpms she like bogs down but once i get past it she hauls ___ ... it seems like its either not getting enough fuel or getting to much but the gauge around there reads a 11-12.5 .... so im not really sure
Old Feb 12, 2008 | 10:53 PM
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i would almost bet that your getting to much fuel between 2800-3500. seriously.. hit a dyno for an hour man.. and you will clear up all of your tuning issues.
Old Feb 13, 2008 | 02:51 AM
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yea i need to find one in the jersey area not 5 hours away
Old Feb 13, 2008 | 11:09 PM
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you could try and street tune it, but its not the best option, nor the safest imo. just take it easy on her til you can get to a dyno.
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