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SVTPerformance's Chain of Restaurants
Tuning À la carte
Leaning out in 2nd after launch
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<blockquote data-quote="96dreamer" data-source="post: 16497100" data-attributes="member: 52560"><p>Fixed a belt issue and got some more datalogs out of the car. Attached is the MSL file from one of the logs edited down to just the pull for anyone that has megalog viewer. The two screenshots below are showing the same rpm at two different times and the drasically different afrs between the two. Still having the afr issue in lower gears at the beginning of the pull, this time 3rd. AFR only saftied once during this run around 365.3 seconds with fuel pressure at ~58psi, duty cycle@ ~29%, ~3750rpm and 5.7 psi of boost but the lambda super lean and erratic right after the shift.</p><p></p><p>After the rpms came back down I continued in the same gear. At 360.1 seconds the rpms are at ~3750, 5.87psi map, 58psi fuel, ~30%duty, same as when it tripped earlier but lambdas are almost exactly where they should be.</p><p></p><p>Its not having issues with the AFR tripping later in the pull when duty cycle is through the roof and fuel pressure drops. Port eh Is my clutch switch so at 363.1 and 366.3 i'm no lift shifting and you can see the clutch switch activates. I don't understand why the afrs are so different between the two spots when loads are the same. I know the fuel pump is to small and it is causing crazy high duty cycles later in the pull but even with 130% duty cycle the AFRs are where they should be.</p><p>[ATTACH=full]1664667[/ATTACH] [ATTACH=full]1664668[/ATTACH]</p></blockquote><p></p>
[QUOTE="96dreamer, post: 16497100, member: 52560"] Fixed a belt issue and got some more datalogs out of the car. Attached is the MSL file from one of the logs edited down to just the pull for anyone that has megalog viewer. The two screenshots below are showing the same rpm at two different times and the drasically different afrs between the two. Still having the afr issue in lower gears at the beginning of the pull, this time 3rd. AFR only saftied once during this run around 365.3 seconds with fuel pressure at ~58psi, duty cycle@ ~29%, ~3750rpm and 5.7 psi of boost but the lambda super lean and erratic right after the shift. After the rpms came back down I continued in the same gear. At 360.1 seconds the rpms are at ~3750, 5.87psi map, 58psi fuel, ~30%duty, same as when it tripped earlier but lambdas are almost exactly where they should be. Its not having issues with the AFR tripping later in the pull when duty cycle is through the roof and fuel pressure drops. Port eh Is my clutch switch so at 363.1 and 366.3 i'm no lift shifting and you can see the clutch switch activates. I don't understand why the afrs are so different between the two spots when loads are the same. I know the fuel pump is to small and it is causing crazy high duty cycles later in the pull but even with 130% duty cycle the AFRs are where they should be. [ATTACH=full]1664667[/ATTACH] [ATTACH=full]1664668[/ATTACH] [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Leaning out in 2nd after launch
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