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The Terminator
Engine/Tuning
FRPP 80lb injector tuning problems
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<blockquote data-quote="WDW MKR" data-source="post: 9987337" data-attributes="member: 8038"><p>I used to hear the same, but recent cleaned up injector files seem to have changed that. It's a weird clash of opinions, though. Trusted tuners don't even agree... Eric Brooks says there are no tuning issues with the 80lb injectors, while Justin Starkey appears to hate them.</p><p></p><p>I cleaned the MAF. Found and tightened (2) loose charge piping clamps. Loaded various tunes and I think the problem is even worse. My last try was to load my previous 93oct tune with only the 80lb injector file loaded... stock pressure, now MAF Xfer tweaks, etc. Had to work the throttle to get the car to start and I now wreak of fuel. STFT split go worse and actually swapped banks with STFT1 bottoming out and holding 0.75 while STFT2 floated around 1.20... WTF?</p><p></p><p>I definitely think I'm better off starting with my new tune. I have a feeling my previous 75lb injector tune relied on a lot of MAF Xfer tweaks to accomodate for less than ideal injector data points. Could the new tune being crazy rich or crazy lean show errant O2 sensor readings? I've ran into that before, where it was so far off you just couldn't trust the data and had to keep working a a general direction until the car started and ran fairly smoothly before working the datalogs. Unfortunately, evertime I think I'm headed in the right direction the car still runs like crap and throws some other curveball at me.</p></blockquote><p></p>
[QUOTE="WDW MKR, post: 9987337, member: 8038"] I used to hear the same, but recent cleaned up injector files seem to have changed that. It's a weird clash of opinions, though. Trusted tuners don't even agree... Eric Brooks says there are no tuning issues with the 80lb injectors, while Justin Starkey appears to hate them. I cleaned the MAF. Found and tightened (2) loose charge piping clamps. Loaded various tunes and I think the problem is even worse. My last try was to load my previous 93oct tune with only the 80lb injector file loaded... stock pressure, now MAF Xfer tweaks, etc. Had to work the throttle to get the car to start and I now wreak of fuel. STFT split go worse and actually swapped banks with STFT1 bottoming out and holding 0.75 while STFT2 floated around 1.20... WTF? I definitely think I'm better off starting with my new tune. I have a feeling my previous 75lb injector tune relied on a lot of MAF Xfer tweaks to accomodate for less than ideal injector data points. Could the new tune being crazy rich or crazy lean show errant O2 sensor readings? I've ran into that before, where it was so far off you just couldn't trust the data and had to keep working a a general direction until the car started and ran fairly smoothly before working the datalogs. Unfortunately, evertime I think I'm headed in the right direction the car still runs like crap and throws some other curveball at me. [/QUOTE]
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FRPP 80lb injector tuning problems
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