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SVT Shelby GT500
FP duty cycle with BAP is high
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<blockquote data-quote="fullboogie" data-source="post: 13026799" data-attributes="member: 23633"><p>Cruising and at idle, I'm showing 15-16%. At the top of a third gear run, when my shift light goes off at 6k, it's bumping up to 48-49%. I'm taking my readings off the Aeroforce gauge, which I assume to be fairly accurate. I can log through Livelink if necessary.</p><p></p><p>I've got stock pumps/injectors with a TVS and a 2.4" pulley, 123mm CAI, etc. The last dyno was approximately 650/650 (don't have it handy to look at) with 18lbs of boost. The duty cycle seems high considering I'm running the 17.5V BAP - I was really expecting more headroom with this relatively mild setup. </p><p></p><p>This has me wondering: is it possible one of the BAP drivers has gone bad? Or wired incorrectly? Or is a 98% duty cycle to be expected given the parts and HP I'm seeing? I am also thinking I should log FP duty cycle with Livelink, but I recall seeing half a dozen PID's relating to duty cycle. Which one is the "actual" signal vs. the one Aeroforce uses (I think it's something like fp_duty_cycle or fp_dcycle)?</p><p></p><p>Last question - if all this is normal for stock pumps and a BAP, I will assume the cure is to get aftermarket pumps. What is the general consensus on a decent upgrade that won't break the bank? I do not plan to make any more mods to the car.</p><p></p><p>Fuel filter is brand new, by the way.</p></blockquote><p></p>
[QUOTE="fullboogie, post: 13026799, member: 23633"] Cruising and at idle, I'm showing 15-16%. At the top of a third gear run, when my shift light goes off at 6k, it's bumping up to 48-49%. I'm taking my readings off the Aeroforce gauge, which I assume to be fairly accurate. I can log through Livelink if necessary. I've got stock pumps/injectors with a TVS and a 2.4" pulley, 123mm CAI, etc. The last dyno was approximately 650/650 (don't have it handy to look at) with 18lbs of boost. The duty cycle seems high considering I'm running the 17.5V BAP - I was really expecting more headroom with this relatively mild setup. This has me wondering: is it possible one of the BAP drivers has gone bad? Or wired incorrectly? Or is a 98% duty cycle to be expected given the parts and HP I'm seeing? I am also thinking I should log FP duty cycle with Livelink, but I recall seeing half a dozen PID's relating to duty cycle. Which one is the "actual" signal vs. the one Aeroforce uses (I think it's something like fp_duty_cycle or fp_dcycle)? Last question - if all this is normal for stock pumps and a BAP, I will assume the cure is to get aftermarket pumps. What is the general consensus on a decent upgrade that won't break the bank? I do not plan to make any more mods to the car. Fuel filter is brand new, by the way. [/QUOTE]
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FP duty cycle with BAP is high
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