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SVT Shelby GT500
Boost Issues
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<blockquote data-quote="SCGallo2" data-source="post: 16634707" data-attributes="member: 160791"><p>Once you verify that your throttle body is staying fully open during a WOT pull and drawing in "all the air", monitor AFR and timing for expected WOT values programmed into your calibration, since air, fuel, and timing dictate your power level.</p><p></p><p>Keep in mind that there may be nothing wrong with your car, other than feeling down on power (butt dyno). Density altitude, humidity, and temp can influence power production enough to effect wheel spin in 2nd and 3rd gear. Reading your previous thread about your dyno results, outside air temp was 45-50*F, and I am certain that your hood was open providing more unrestricted air flow. Since then, you installed a larger diameter exhaust system, reducing some restriction. Between differences in weather conditions, exhaust restriction, and hood open vs. hood closed, I can see you having a slightly lower boost reading. If your calibration and hardware are doing what they are programmed to do, then it is what it is...</p></blockquote><p></p>
[QUOTE="SCGallo2, post: 16634707, member: 160791"] Once you verify that your throttle body is staying fully open during a WOT pull and drawing in "all the air", monitor AFR and timing for expected WOT values programmed into your calibration, since air, fuel, and timing dictate your power level. Keep in mind that there may be nothing wrong with your car, other than feeling down on power (butt dyno). Density altitude, humidity, and temp can influence power production enough to effect wheel spin in 2nd and 3rd gear. Reading your previous thread about your dyno results, outside air temp was 45-50*F, and I am certain that your hood was open providing more unrestricted air flow. Since then, you installed a larger diameter exhaust system, reducing some restriction. Between differences in weather conditions, exhaust restriction, and hood open vs. hood closed, I can see you having a slightly lower boost reading. If your calibration and hardware are doing what they are programmed to do, then it is what it is... [/QUOTE]
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