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Thread: Maximum Timing For Stock Engine

  1. #21
    Lifetime Member 2007 5.9's Avatar
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    I wouldn't go over 3000uS....ever
    Les Szmidt
    2007 5.9 Dodge Ram
    2014 Ram 3500 Aisin tuning Emissions Equipped
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  2. #22
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    Maybe I should rephrase the question.

    I have a base tune and I am looking to increase timing. How do I know when I have increased it too much?

  3. #23
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    It will get noisey and possibly excessive smoke. Timing is relative to the rpm and pulse at that moment. Have you ran what you have through the calculator to see where you are at with timing now?

  4. #24
    Lifetime Member 2007 5.9's Avatar
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    Quote Originally Posted by EverydayDiesel View Post
    Maybe I should rephrase the question.

    I have a base tune and I am looking to increase timing. How do I know when I have increased it too much?
    I'll redesign my answer...

    What pulse and rpm are you looking at info for?
    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

  5. #25
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    Quote Originally Posted by S Phinney View Post
    It will get noisey and possibly excessive smoke. Timing is relative to the rpm and pulse at that moment. Have you ran what you have through the calculator to see where you are at with timing now?
    I just got efi live. Is there a guide on how to do this?

  6. #26
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    No there isn't really much instruction. It will take you a enormous amount of time to learn the dos and don't s. Take it slow with small adjustments on one item at a time to find the correlations between various components of the tune. There are many limiters within the tune as well. Learn how they work and what they do first.

  7. #27
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    Quote Originally Posted by 2007 5.9 View Post
    I'll redesign my answer...

    What pulse and rpm are you looking at info for?
    I am by bo means trying to be smart with the above comment. When I tune lsx engines I will watch the knock sensors and they will tell me when I have hit the saturation point.

    How do I know when my engine has too much timing at any/ all rpms

  8. #28
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    Quote Originally Posted by S Phinney View Post
    No there isn't really much instruction. It will take you a enormous amount of time to learn the dos and don't s. Take it slow with small adjustments on one item at a time to find the correlations between various components of the tune. There are many limiters within the tune as well. Learn how they work and what they do first.
    Thank you for the reply. Do you have any idea on how I will know when I have hit too much timing (at any given rpm) other then noise and smoke. Is there any parms (like a knock sensor) that I can watch as an indicator?

  9. #29
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    No there isn't. You will hear the timing/injector rattle very distinctly. If you run the tune through the program calculator you can see where stock items fall. There is tremendous range in the stock tune. A performance tune won't resemble that.

  10. #30
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    Quote Originally Posted by EverydayDiesel View Post
    I am by bo means trying to be smart with the above comment. When I tune lsx engines I will watch the knock sensors and they will tell me when I have hit the saturation point.

    How do I know when my engine has too much timing at any/ all rpms
    If your using stock pulse and you begin to add timing, smoke will be a byproduct of too much timing. Remember that pilot timing is based off of main timing. So as you increase main, pilot also increases.

    As for top end fueling timing, with a re-entrant piston, 50% BTDC is ok with stock pulse...start going over stock pulse, you'll need to advance your split.

    If you have access to a load cell dyno..that would be your best friend.

    With diesels, no knock sensors, so you have 3-potential ways to find max timing...

    1. Dyno
    2. Track
    3. Calculated timing
    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

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