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Thread: Can someone explain this DSP5 Switch?

  1. #1
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    Default Can someone explain this DSP5 Switch?

    EFI LOGS INDICATE:

    Full Counter Clockwise:
    0 clicks, full CCW, 4.27v. Non DSP
    1 click R: 2.92v, DSP#1
    2 click R: 1.79v, DSP#2
    3 click R: 1.02v, DSP#3
    4 click R: 0.35v, DSP#4
    5 click R: 4.97v, Non DSP

    THIS is what I was told is in there:

    Optimized stock 30hp
    Heavy tow 60hp
    Light tow/daily driver 100hp
    Hot 120hp
    Race 150hp

    Which tune goes with which voltage? Do the voltages look correct?
    07 Silverado DMax Classic
    02 Z06 LS3 416, 805rwhp, TFS245, Wiseco, Callies Crank/Rods, Iskendarian Lifters, Crower Rockers, FAST102/90, ATI Damper, 1-7/8 Kook's LT, QkTime Shield,Tolle-Fab 8pt
    Old Engine: 1/4mile = 9.6/146 New Engine:?

    EFI Live Tune/Scan v7.5.27, EFI Live Scan and Tune v8.2.23, build 276, BootBlock 2.07.06, FirmWare 2.07.52, 512K RoadRunner (12.14.R), Innovate Serial LC2x2


    COS5/12212156 For 2002 Z06 Manual Vette

  2. #2
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    Non DSP should be your hottest tune. From there you got me.

  3. #3
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    ok, splain. There are at least two voltgages NON DSP
    07 Silverado DMax Classic
    02 Z06 LS3 416, 805rwhp, TFS245, Wiseco, Callies Crank/Rods, Iskendarian Lifters, Crower Rockers, FAST102/90, ATI Damper, 1-7/8 Kook's LT, QkTime Shield,Tolle-Fab 8pt
    Old Engine: 1/4mile = 9.6/146 New Engine:?

    EFI Live Tune/Scan v7.5.27, EFI Live Scan and Tune v8.2.23, build 276, BootBlock 2.07.06, FirmWare 2.07.52, 512K RoadRunner (12.14.R), Innovate Serial LC2x2


    COS5/12212156 For 2002 Z06 Manual Vette

  4. #4
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    You have one too many switch positions I count six should only be 5. Both non dsp setting will be the same fix the switch for five positions remove switch shoul be a washer with a needle that sets number of positions move it one position ccw with knob turned all the way ccw

  5. #5
    Lifetime Member LB72004's Avatar
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    That's how I have mine set up. Got a six position switch from radio shack. Far left and far right are stock (non dsp). Kind of like it like that.
    2008 Chevrolet 3500HD DRW LTZ
    285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

    Sold - 2004 LB7 Duramax, EFI Live with DSP5 Tune
    stage 4 SC transmission, 265/70/16 tires

  6. #6
    Lifetime Member THEFERMANATOR's Avatar
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    Quote Originally Posted by SkinnyPedal View Post
    Non DSP should be your hottest tune. From there you got me.

    Not always, and most tuners have now stopped doing this. If your DSP switch fails, you will be stuck on your base tune. So if your base tune is your hot tune, would you want to be stuck with a 1000 miles of towing ahead of you on your race tune because a failed DSP switch. As for the OP, where did you get your switch from? Many of the available prebuilt DSP switches have a little disc underneath where it mounts that comes out and allows you to set it for how many positions it can have.
    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.

  7. #7
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    Quote Originally Posted by THEFERMANATOR View Post
    Not always, and most tuners have now stopped doing this. If your DSP switch fails, you will be stuck on your base tune. So if your base tune is your hot tune, would you want to be stuck with a 1000 miles of towing ahead of you on your race tune because a failed DSP switch. As for the OP, where did you get your switch from? Many of the available prebuilt DSP switches have a little disc underneath where it mounts that comes out and allows you to set it for how many positions it can have.
    With the lmm some tq tables are in non dsp you can't do a big tune with dsp 1-4 because the non dsp tq tables limit the power ,or thats what happen to me.I pulled my hair out for days over this
    Made my non dsp the big tune and went down from there fixed the problem
    Just don't make your tunes with big power in low throttle areas and you will be ok if it fails

  8. #8
    Lifetime Member THEFERMANATOR's Avatar
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    Quote Originally Posted by 69camaro5speed View Post
    With the lmm some tq tables are in non dsp you can't do a big tune with dsp 1-4 because the non dsp tq tables limit the power ,or thats what happen to me.I pulled my hair out for days over this
    Made my non dsp the big tune and went down from there fixed the problem
    Just don't make your tunes with big power in low throttle areas and you will be ok if it fails
    You still need to set your limiters in the base tune to work with your biggest tune. If you do them correctly your big tune can be in any position.
    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.

  9. #9
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    Quote Originally Posted by THEFERMANATOR View Post
    You still need to set your limiters in the base tune to work with your biggest tune. If you do them correctly your big tune can be in any position.
    Yeah tryed that to all ways worked on the lb7,lly,lbz not this lmm
    :

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