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Thread: 99 S10 Xtreme Table and channels

  1. #1
    Potential Tuner
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    Jun 2018
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    99 S10 Xtreme Table and channels

    This is my first time dealing with one of these older ECMs. from what I have read there is no OS support, but I'm wondering if there is anyway to expand the spark and VE tables.
    Spark table only goes to 6,000rpm and the VE only goes to 5,200rpm. I'm guessing the maf could go above 5,200rpm. Trying to figure out how to raise the rpm limiter, it's not like my p01 or 059. Couldn't find alot on these older ecms.
    The guy build the hell out of this 4.3, bored cam, springs, H beam rods.

  2. #2
    Potential Tuner
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    Jun 2018
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    Well I guess the Rev limiter is under the DEFCo. So I have that figured out. Adding to the VE table I haven't figured that one out, or the spark table. I'll report more when I get more figured out.

  3. #3
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    I really don't think you can do anything more with the spark/VE, those old vortec computers have very little support with HP Tuners.

    Doing a 411 computer swap is an option because the 4.3 was ran with those computers for several years.

    Or I see people go with a standalone controller instead.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  4. #4
    Potential Tuner
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    Jun 2018
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    Thanks for the reply.