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Thread: dsp5 tune being limited and confused why

  1. #11
    Senior Member djv86's Avatar
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    Quote Originally Posted by DURAtotheMAX View Post
    Yeah thats because your rail pressure limit table is still stock............you increased the desired rail pressure tables all around, but thats not gonna do shit when you left the main limiter table stock.

    And thats still too much timing. You need to go through and custom tune ALL of the timing compensation/multiplier tables. Otherwise you're going to get a shitty rattly mess at different altitudes, temperatures, etc.

    "truck runs good" means nothing. Might run good now, but check back in a couple thousand miles after abusing it with 38* of timing...
    The timing is from the Josh's calculator at like 55% and it's been driving like this still everyday on tune 5 no issues.

  2. #12
    Senior Member djv86's Avatar
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    Quote Originally Posted by THEFERMANATOR View Post
    Come on now, i seen one run at 3400 with a oversized pump and 45 over sticks running 36 degrees of timing. Granted his crank broke less thaan 100 miles later, but hey, it ran good until.
    youve been messaging my friend travis and i chaged timing to 50% as per what the starlite tuning book states and still hits 1700 egts at WOT so what were you suggesting about doing

  3. #13
    Lifetime Member THEFERMANATOR's Avatar
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    Quote Originally Posted by djv86 View Post
    youve been messaging my friend travis and i chaged timing to 50% as per what the starlite tuning book states and still hits 1700 egts at WOT so what were you suggesting about doing
    I'm on my desktop now, and going to look at it. From my initial glance, you were running ALOT of PW, and very little timing. Also it appeared the limiters were still stock which is going to prevent the timing from going up where it's commanded, and you were calling for ALOT of torque in the throttle table, so much so it is maxxing out at 80% throttle. I'm going to take a closer look at it, but a 2500 PW is going to run fairly high EGT's anyway you look at it.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  4. #14
    Senior Member djv86's Avatar
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    Quote Originally Posted by THEFERMANATOR View Post
    I'm on my desktop now, and going to look at it. From my initial glance, you were running ALOT of PW, and very little timing. Also it appeared the limiters were still stock which is going to prevent the timing from going up where it's commanded, and you were calling for ALOT of torque in the throttle table, so much so it is maxxing out at 80% throttle. I'm going to take a closer look at it, but a 2500 PW is going to run fairly high EGT's anyway you look at it.
    Ya, what kinda hp you think that tune does? And is 1700 for like two seconds bad ? Lol I try to avoid it but sometimes little Japanese cars gotta get the let down

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