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Thread: tune please for sts gt67 ls1 m6 98 trans am

  1. 06-08-2008 #1
    spaz
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    check my tune please for sts gt67 ls1 m6 98 trans am

    Hey guys I was wondering if anyone had a tune I could use as a base for my turbo install. I am running a cat delete kit from Mac, ls6 intake with racetronix 42lb injectors and 255 fuel pump. I am going to run 8psi boost and 91 octane.
    Thanks,Chris.
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    here is what I have so far and here is a log as well any suggestions?
    Last edited by spaz; 06-11-2008 at 11:39 PM.
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  2. 06-11-2008 #2
    spaz
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    bumpage
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  3. 06-15-2008 #3
    spaz
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    any tips?
    should I adjust the Ifr tables The ltft's are high.
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  4. 06-15-2008 #4
    Russ K
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    I set up your IFR table for the 42# injectors (to lower the LTFT's) and the open loop table. You need to log commanded AFR & Maf Hz so your AFR error histogram will work. Since the 1998 pcm only supports 24 bytes, you will need to delete unnecessary pids such as Maf g/sec, fuel trim cell, and O2 voltage.

    Also set your PE to 11.5, or 12.0 if your intercooled. And install a 160*F stat & lower the fan temps. I would install 2 heat range colder than stock spark plugs.

    Russ Kemp
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