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S-AFC tuning problem (Meggala please help)

BOOSTMEISTER
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BOOSTMEISTER Mentor

BOOSTMEISTER

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As some of you know I have a s-afc on my 32 and it seems to be working fine at part throttle tune. However at full throttle I am leaning out at max power then richening up near the end (wrong way around) the thing is that we maxed out the afc at this point and made no difference. Then we backed it right off and made no difference to the dyno run???? What could be causing this? afm is 99.6% maxed out but injectors are good and the fuel pump is huge so whats the prob?

Anyone

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meggala Grand Master

meggala

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have you checked your throttle postions the default is 15% may be change it if the afm is maxing out may be a fcd needed as the ecu cant make change cause the figure is constant.?

just thoughts not fact.

you afm seems to be the issue cause its maxing out so the ecu just dumps fuel.

meggala

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BOOSTMEISTER Mentor

BOOSTMEISTER

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The thing is this, I want to fit bigger injectors so if I do this the afm will not be on as much load so what I will do is get my car running as good as possible with this setup then buy 6 550cc rx? injectors for $420 and this will solve all my problems as the afc will then be used to BACK the fuel off instead of add it, my tuner has estimated the afm to be at approx 66-70% with these injectors as he has done similar things on other cars. My main goal is to run a this years Jamboree in September with a mid-low 12sec.

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