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Thread: Tips & Tricks: Things you've learned while exploring EFI Live on the Cummins

  1. #11
    Lifetime Member DoghouseDiesel's Avatar
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    Mine starts up and runs fine with everything brought up to 22*.

    BUT, I have not run the truck up at those RPM's since putting it on.

    If you're running it with the 3rd event still going, did you reduce the delay between the main and post events? With the added timing that 600 microsecond delay is going to be too much.

    As soon as I have some time to strap it back down on the dyno, I'll log the upper RPM's and see what it's doing.
    Last edited by DoghouseDiesel; June 29th, 2011 at 07:41 AM.

    1207 HP / 1612 TQ

  2. #12
    Lifetime Member Dmaxink's Avatar
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    3rd event has been shut off completely
    -Kory

    I'm out of ideas? Nah trick... When in doubt, 0xFFFF it out!

    http://www.PPEI.com/

  3. #13
    Lifetime Member DoghouseDiesel's Avatar
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    I'll mess with extending the main duration when I strap it back down.

    I try not to mess with timing and duration too much unless I have the truck on the rollers. Just a lot more controlled environment to work on things.

    A little too much timing on the dyno is easier to see than with just the logs.

    1207 HP / 1612 TQ

  4. #14
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    Seems your having a lot of fun with it Rich...
    2011 Chevy 2500HD LML 4x4 LTZ-Black
    -H&S Mini Maxx | MBRP 5" w/Muffler | 4" Rancho Lift | BMF REPR 20x9 DM | Mickey Thompson ATZ P3's 35/12.50's.

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    EcoDieselRam Forum

  5. #15
    Lifetime Member DoghouseDiesel's Avatar
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    Getting it figured out.

    Got the rail pressure setup the way I want it.

    Getting the timing dialed in now.

    Starting to get an idea of where I'm going with the duration. That's been a lot of math and head scratching.

    Still a lot of things to dial in, but it's getting there.

    1207 HP / 1612 TQ

  6. #16
    Lifetime Member 2007 5.9's Avatar
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    I've learned that 90% of low end smoke is entirely tied to timing....too much low end timing=smokey mess.

    Also learning that 2 different trucks with similar mods....dont respond the same to the same tune....

    ~Les
    Les Szmidt
    2007 5.9 Dodge Ram
    2014 Ram 3500 Aisin tuning Emissions Equipped
    EFI Live Cummins BETA Tester
    Silver Bullet Tuning
    silverbullettuning@gmail.com
    www.youtube.com/ljszmidt
    http://www.facebook.com/SilverBulletTuninig

  7. #17
    Lifetime Member AFTERMATH DIESEL's Avatar
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    Until you are familiar with what you are doing do not change more than one thing at a time. This has been my number one question from customers that have asked me to help find an issue and most of the time my answer ig go back and start over.

    Just because you change something doesnt mean it worked. If you dont log it you will never know.

  8. #18
    Lifetime Member Dmaxink's Avatar
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    Les, too much low end timing caused the smoke? That is starting the injection event x* BTDC, more timing will typically mean less smoke, likewise less timing more smoke.... maybe you mean the main injection? Just making sure myself, nor anyone else gets confused...

    Thanks,
    Kory
    -Kory

    I'm out of ideas? Nah trick... When in doubt, 0xFFFF it out!

    http://www.PPEI.com/

  9. #19
    Lifetime Member 2007 5.9's Avatar
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    Quote Originally Posted by Dmaxink View Post
    Les, too much low end timing caused the smoke? That is starting the injection event x* BTDC, more timing will typically mean less smoke, likewise less timing more smoke.... maybe you mean the main injection? Just making sure myself, nor anyone else gets confused...

    Thanks,
    Kory
    If I have too much low end main timing...smoke show,and hazes at cruise. Lower the main timing some and now can have a responsive low end, with ZERO smoke on accel and cruise...however EGT's suffer.

    I have run anywhere between 17-30* of main timing at 30-40mm3 at 2000 rpm's...17* nets me 750-800* of EGT's and a super clean tailpipe...while 30* nets me 600* of EGT's but a super hazy tailpipe. So I have found that so far there has to be a trade off...for now. I am certian that with time I can fine tune it in to get the maximum timing in with best EGT's and still be clean...just takes time.

    Being that I live is SMOG loving California...lower smoke levels are a must, especially with the local highway patrol...LOOKING for smoking diesels to automatically send to smog station.

    ~Les
    Les Szmidt
    2007 5.9 Dodge Ram
    2014 Ram 3500 Aisin tuning Emissions Equipped
    EFI Live Cummins BETA Tester
    Silver Bullet Tuning
    silverbullettuning@gmail.com
    www.youtube.com/ljszmidt
    http://www.facebook.com/SilverBulletTuninig

  10. #20
    Lifetime Member DoghouseDiesel's Avatar
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    What I've found with it, as far as the timing goes, is if I keep the timing in the 22* - 25* range at highway cruisng RPM's the smoke is controllable.

    I have it sitting at 18* at idle, but bring it up to the low 20's fairly quickly. I kind of leveled the map a bit in the cruising range to limit the smoke and the touchiness and then ramp it back up once it gets above 2200 RPM's

    Same thing with the rail pressure. I bring that in fairly quick down low and limit the duration.

    Unless I'm driving like a prick, it's pretty controllable.


    1207 HP / 1612 TQ

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