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Thread: help w/ my tune

  1. 07-14-2009, 02:19 AM #1
    Grey Ghost's Avatar
    Grey Ghost
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    help w/ my tune

    I did a couple data logs today, and have no idea what all this stuff is telling me. Are there any gurus here that could help me decipher this stuff, and possibly give suggestions to what changes I should make to the tune? I would be more than happy to e mail the logs to anyone that wants to have a look.

    I am running a 91CAI tune on a Challenger R/T and the car runs pretty good I think, but I know if I made some adjustments it would run a lot better. The question is, what do I adjust and by how much?

    I have a Corsa cat back with high flow cats, a Mopar CAI and 85mm throttle body. It looks like the knock sensors are showing fairly high numbers, but what do I know. Right now I have 3% more fuel across the board, and the timing is what the predator installed.
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  2. 07-21-2009, 12:52 AM #2
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    BLUEBOY455
    BLUEBOY455 is offline If it works make it better.
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    I am no guru but I like to start out with good fuel for hard loads. Than build from there. If knock are there then work tune.
    Having as much fun possible making power, with good friends 11.521@ 117.83 NA /11.007 @ 123.5 MPH N2O Stock cam and heads, diablo with DINGS CMR tune, 90mm TB, 373 gears, BB 4400 TC, (costom exhaust, CAI, ported intake manifold By DINGS), larger injectors for E-85, slicks, self made N20 kit and roll bar.



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  3. 07-21-2009, 12:56 AM #3
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    higshemi-less
    higshemi-less is offline 0-60- 3.1, 13.5mpg city, 18.5mpg hwy
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    Careful playing with the predator man. You can do some major damage if you don't know what your doiing. Wouldn't be the first time someones popped their engine adjusting their own tables.

    Stock catback, and stock drivetrain
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  4. 07-21-2009, 01:16 AM #4
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    Quote Originally Posted by Higshemi View Post
    Careful playing with the predator man. You can do some major damage if you don't know what your doiing. Wouldn't be the first time someones popped their engine adjusting their own tables.

    Thanks for the advice. I haven't messed with anything really. Just added a bit more fuel is all. I guess I should find a dyno around that could tune a Hemi.
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  5. 07-21-2009, 01:19 AM #5
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    higshemi-less
    higshemi-less is offline 0-60- 3.1, 13.5mpg city, 18.5mpg hwy
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    Really, thats your best bet. Sorry can't help out on a local tuner, but there are some great tuners on the forum that will be able to hook you with an email tune. GL

    Stock catback, and stock drivetrain
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  6. 07-21-2009, 01:44 AM #6
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    Quote Originally Posted by Higshemi View Post
    Really, thats your best bet. Sorry can't help out on a local tuner, but there are some great tuners on the forum that will be able to hook you with an email tune. GL

    LOL, I bought one of those and it was a joke. The canned tune made more HP than it did, and the a/f was way out of whack. Then another vender helped me out with a pretty good email tune, but when the dealer re-flashed the car for new key fobs, (and maybe things I don't know about) the tune wouldn't work anymore, so I am starting from scratch again. I was hoping to just tweak the canned tune and be happy.
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  7. 07-21-2009, 02:36 AM #7
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    sergeo'shemi
    sergeo'shemi is offline True failure is the failure to try!
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    adding fuel is not going to make it better

    you need an air/fuel gauge to mess with that kind of stuff

    i would suggest you return predator settings to stock if you do not want to hurt your baby
    400ci stroker, Vortech blower, and enough said
    07 Magnum Srt8 incognito brute
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