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Thread: Things you need to start tuning

  1. #1
    Lifetime Member bobo's Avatar
    Join Date
    Nov 2005

    Default Things you need to start tuning

    You need a pyrometer and a boost gauge(a must have for the LLY) in your truck to do tuning. Running without these two things is just asking for trouble. I do not recommend using the Edge as a gauge. A built trans is the next thing you will need. If you don't have one, you need to use extreme caution as it is very easy to exceed the limits of the stock transmission while making adjustments.

    Do not run boost over 35psi on a stock turboed LLY. 30psi is sufficient.

    EGT's sustained at 1500 or over will melt the turbo on an LLY. I am talking seconds here, not minutes. Use extreme caution when reaching these temps.

    2005 Twin Turbo Dmax/Allison Ext. Cab Short Box 4X4
    Best 1/4 11.8 @ 118+ on #2 only

    Twisted Diesel Tuning-The leader in Duramax Tuning Services and soon to offer Common Rail Cummins Tuning!

    Bobotune at rocketmail dot com

  2. #2
    Senior Member Wasted Income's Avatar
    Join Date
    Dec 2005


    Good info Bobo.
    2005 Silverado Duramax LLY - EFI Live Tuned
    1969 Chevrolet C-10 Pickup - Turbocharged 5.3L/4L80E - EFI Live Tuned
    1975 Avenger Jet Boat - 6.0L/Berkley pump - EFI Live tune in progress

  3. #3
    Senior Member
    Join Date
    Mar 2006


    thanks for the info do you think i should unplug my boost stick before downloading my stock tune im thinking yes and hoping no
    Last edited by sweetdiesel; April 5th, 2006 at 08:42 AM.

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