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Thread: Early E38 vs. New E38.....

  1. #11
    Lifetime Member GMPX's Avatar
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    Quote Originally Posted by Redline Motorsports View Post
    Ok so I guess all we need is a MAF patch to extend the MAF to 1500 gms/sec!
    There was two changes, the split MAF table went to 12,200Hz and is limited to 511.9922g/s, in 2008 it changed to a 15,000Hz upper frequency limit and massive g/s limit. Main reason is they went from standard scaling to floating point numbers in 2008, that is a pretty major code change.
    So on the older ECM's, even though it might be possible to extend the MAF frequency above 12,200Hz you are still going to be limited by the mathematical limit of the scaling used to get the highest g/s value (511.9922g/s). So there is not a lot of point to extend the frequency range.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

  2. #12
    Lifetime Member GMPX's Avatar
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    Quote Originally Posted by gmh308 View Post
    '08's support the larger MAF scaling. (except for LS7 :( ).
    2008/09 LS7's are still using a 2007 base OS , I am talking about 12612281 & 12628988.
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #13
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    Quote Originally Posted by GMPX View Post
    2008/09 LS7's are still using a 2007 base OS , I am talking about 12612281 & 12628988.
    Yes GM pretty well left the LS7's alone with the split MAF tables .

  4. #14
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    Cant you use an LS3 OS?
    "All that is needed for the triumph of evil is that good men do nothing..."

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