Dyno Tuning tip list
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Cadillac STS-V Series Forum Discussion, Dyno Tuning tip list in Cadillac V-Series Forums; I am going in on Monday for my custom dyno tune. I remember reading some where, something has to be ...
  1. #1
    LITTLEELVISDAN's Avatar
    LITTLEELVISDAN is offline Cadillac Owners Connoisseur
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    Dyno Tuning tip list

    I am going in on Monday for my custom dyno tune. I remember reading some where, something has to be disconnected before a dyno session.

    1) what has to be disconnected?

    For custom tuning:

    1) remove TQ nannies
    2) A/F ratios
    3) Shift patterns

    Anything else??

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    BMBSALES's Avatar
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    Re: Dyno Tuning tip list

    you have to unplug the front wheel speed sensors.

    i would remove tmanagement other than maybe the downshift torque man. i did them all in vette 6spd and it downshifts hard and sometimes breaks wheels loose. def do the shift points. in my vette, i eliminated 5th and 6th gear when in sport mode (shift to right in v) and held in gear longer.

    forget about a/f ratios, as the standard charts i believe are gone for 06. they are for the vette. but, there are other ways to tweak a bit.

    and you left out the most important...at least high octane fuel table, if not both if you use good gas. also knock retard limits, decay rates, retard attack rates, etc.

    get rid of that 155 i believe speed limit.

    and i adjusted spark dwell, as the stock setup is very conservative, and it will give you more torque (becuase of longer sparking rate)

    that should get you started.

    bmb

  4. #3
    BMBSALES's Avatar
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    Re: Dyno Tuning tip list

    Thought of a bit more...

    you may want to also tip in the fans a bit sooner which wont shorten their lifespan that much.

    the following i would not mess with:

    wheelhop (maybe powerhop) control
    cot overtemp
    i wouldnt program out any of traction control stuff, as you can just shut off the switch
    brake torque limits
    i wouldn't raise redline usually done by raising fuel cutoff limits

    AND OF COURSE THE MILLION OTHER THINGS YOU CAN BUT SHOULDN'T TOUCH

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    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    I have been told you have to “write entire” on a 2006 because of E67 computer in the car. You won’t be able to write the calibration only.

  6. #5
    BMBSALES's Avatar
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    Re: Dyno Tuning tip list

    other than taking a little extra time, it's really no different

  7. #6
    CIWS's Avatar
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    Re: Dyno Tuning tip list

    Good luck. It will be interesting to see how your results turn out.

  8. #7
    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    Tomorrow (monday) is the day. I have my appointment set for 9:00 am est. I'll post up the results as soon as i get them.

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    BMBSALES's Avatar
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    Re: Dyno Tuning tip list

    don't forget the before chart too...

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    CIWS's Avatar
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    Re: Dyno Tuning tip list

    See if they will do two dyno pulls at stock before they start changing values. On both my CTS-V and STS-V the 2nd pull would always read higher by approx 5 HP without changing anything, then it would start to level out. If yours stays approx. the same then you're good to go anyway.

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    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    here now. We are looking for a conversion of mili volts to A/F ratio for the wide band sensor. you don't have that do you?

  12. #11
    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    Some problems occurred at todays session. I am working through them with HPTuner BUT.....What a waste of a day.

    1) HPTuner apparently does not support the STS-V.
    a) the kit does not read the right o2 sensor. It is reading the narrow band one not the Wideband one befroe the CAT. (hence my panic search for a conversion table from milivolts to A/F)
    b) It does not have any of the specific STS-V perameters to add. It has the most basic stuff but no VVT support.
    c) It doesn't seem to write to the ECM correctly. We went with disabling ALL TQ nannies we could find with the HP kit and changed spark saturation and fuel tables with NO results on the dyno.

    All said 2.5 hours on the dyno and 12 runs yielded 0 hp gain.

    Then to top it all off, removing TQ nannies and leaving all the modifications we did caused me to go into limp home mode. I had to reload the stock file.

    My guy knew his shit but the tools I provided crippled him. The Viper Venom GT50R he was doing sounded really nice.

  13. #12
    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    A good note that all will be happy to hear is that you don't have to disconnect the front speed sensors.

    1) take TC off by hitting the TC button once.
    2) run the car up to 2000 rpms
    3) let the car error on ABS and it will disable the ABS system by itself.

    He found the problem was not in the TC or stabilitrac area but the ABS was getting kicked on when the speed sensors detected a problem. Once the car disabled ABS itself we were able to dyno the car.

  14. #13
    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    Oh Yeah! my stock results.....

    388 hp /370 tq

  15. #14
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    Re: Dyno Tuning tip list

    How disappointing and frustrating for you. Now what? Is HPTuner going to get their stuff together and get the correct info to you or are you back to square one?

  16. #15
    LITTLEELVISDAN's Avatar
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    Re: Dyno Tuning tip list

    HPTuner support is getting an ear full. We'll see what they come back with. My guess this early on is that they are going to have to refund my money and I am going to go with EFI Live. BUT we'll see what HPT support does.

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