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This is a discussion on Duty cycle within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I can't remember the IDCs on the 93 tune. Ill pull a new log. I don't think I monitored that ...

  1. #16
    Registered User SubiEj255's Avatar
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    I can't remember the IDCs on the 93 tune. Ill pull a new log. I don't think I monitored that on the first log I pulled with the 93 tune. If I recall correctly I only monitored the IDCs on the 91 tune. So you're saying since there isn't a knock issue, using a higher octane on a lower map isn't producing any benefits?
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  3. #17
    Master Baiter EJ257's Avatar
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    Re: Duty cycle

    Upload your log to Google Docs and set it to Public. That's impossible to parse
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  4. #18
    Registered User SubiEj255's Avatar
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    This is the stage 1 91 octane tune

    https://docs.google.com/spreadsheet/...E1EcjNZVzJZWlE
    Last edited by SubiEj255; 10-17-2012 at 10:26 AM.
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  5. #19
    Admiral Ackbar the 1st mycologist's Avatar
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    You have to make it public still I think.

    A log with the 93 octane map is the one we need to see, but I'll be happy to look at the 91 map too.
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  6. #20
    Registered User SubiEj255's Avatar
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    Ok done. It's public. A 93 map will have to wait until tomorrow. The log I have doesn't have IDCs on it.
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  7. #21
    Admiral Ackbar the 1st mycologist's Avatar
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    Yeah, nothing to see there really except the high duty cycle - it looks fine to go ahead and load the 93 map.

    One weird learned knock "event" but it looks like it was right when you are lifting off and is probably insignificant.
    "From a little spark may burst a mighty flame." - Dante
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  8. #22
    Registered User SubiEj255's Avatar
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    Ill pull a 93 oct log and post it tomorrow. The knock learning was when I let off I did see that. A reason why I am running the 91 oct tune is b/c it boosts less than the 93 oct tune. I was under the impression that it will be richer than the 93 tune. Make sense?
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  9. #23
    The Fruit mangostick's Avatar
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    run the 93 map. Seriously, the ots maps are rich enough that you can get away with running 92 on the 93 map. I must have logged about 90 times over a few months and never found anything too odd about the 93 map other than its pig rich to begin with. The 91 map is even worse.

    Seriously cobbs maps are very very very lax. You can run that 93 map without issue.
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  10. #24
    Registered User SubiEj255's Avatar
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    Ok cool. How are your IDCs?
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  11. #25
    Registered User SubiEj255's Avatar
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    This is the stage1 93 octance tune. I'm hitting the same amount of boost as the other tune and duty cycle is around 96% at 6800 rpm

    https://docs.google.com/spreadsheet/...XazFjTUE#gid=0
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  12. #26
    Admiral Ackbar the 1st mycologist's Avatar
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    Quote Originally Posted by SubiEj255 View Post
    This is the stage1 93 octance tune. I'm hitting the same amount of boost as the other tune and duty cycle is around 96% at 6800 rpm

    https://docs.google.com/spreadsheet/...XazFjTUE#gid=0
    That looks a bit better and I would stick with the 93 over the 91. Basically everything else is fine, so if you want to keep running it you have to keep an eye on it and make sure it isn't leaning out when the weather gets colder or anything else that might make your boost go up. You're not quite making the target boost but I wouldn't try without upgrading the fuel system. Also note that the factory front O2 isn't accurate at WOT - no point in logging that and don't rely on it. Watch for changes to the DAM and knock cells instead.


    I still find it strange that the duty cycles are so high on a stage II map. You really would likely be better served with a more custom map.
    "From a little spark may burst a mighty flame." - Dante
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  13. #27
    Registered User SubiEj255's Avatar
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    I did see that this tune looks better. I will leave it, but my IDCs are better b/c I'm not hitting targeted boost levels. I think if I was they would be closer to maxed out.
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  14. #28
    Registered User SubiEj255's Avatar
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    It's a stage 1 map tho
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  15. #29
    Registered User XRedJar's Avatar
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    To bring back an old thread....

    I've got a 2013 5 door....stage 1...running Cobb Stage 1 91 octane, modified by e-tuner to run 16 lbs. of boost.

    My logs show at 6k rpm, I'm at 86% injector duty cycle. I'm at about 11.2 AFR at that point (tailpipe sniffer at dyno). Is this too rich?

    How are people running a stage 2 tune on stock fuel pump and stock injectors?
    2013 Ice Silver Premium 5 door - Stage 1 E-Tune

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