3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
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duty cycle

Old Jan 28, 2003 | 08:07 PM
  #1  
suprfast's Avatar
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duty cycle

hoping someone can help me out. can you go too low on the duty cycle that controls the wastegates? i have them set at about 28 and 40% for just .7 bar on my PFC. i have a complete open exhaust with intake. im running a base mod map. i just want to know if going that far down is bad. it seems like anything above these setting will make me spike REALLY bad and it wasnt until this last setting that i dont see much over .7 bar. i get mostly .68 bar with an occasional .72. is this safe for the duty cycles?
kris
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Old Jan 28, 2003 | 11:12 PM
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the pfc won't let you go below 20%, or about 90% for safety reasons. This is to ensure that the wastegate is being operated within its range. So as long as you don't have to turn the duty to below 20%, you're fine. If you have to lower it anymore than 20, then you're gonna need a boost controller
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Old Jan 28, 2003 | 11:37 PM
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well im happy then. i noticed a fuel cut or something similar at about 6500 rpm's. it just kinda didnt want to go. hit a wall real quick. i added about 3% on the PIM voltage from 6K-8K rpms. does this make sense. does it work? seem'd to work when i tried, or was it wrong and i just got lucky that time while driving it
kris
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