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Thread: Is VE calibrated at same temp as Cranking VE

  1. #1
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    Is VE calibrated at same temp as Cranking VE

    Are the VE tables calculated at the same temperature as the cranking VE tables? Is the Cranking VE calibration temp the outside air temperature?
    1998 Camaro Z28 M6: SLP Lid, Adj. Panhard, SFCs, CAGS!, Hotcam, Hooker Shorties, Katech Tensioner, Catback with Dynomax 17221 3\" Muffler, Mobil-1, Bosch +4s, 160 Stat, !EGR, !MAFless, !FRA, S3 TB

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    Re: Is VE calibrated at same temp as Cranking VE

    TTT
    1998 Camaro Z28 M6: SLP Lid, Adj. Panhard, SFCs, CAGS!, Hotcam, Hooker Shorties, Katech Tensioner, Catback with Dynomax 17221 3\" Muffler, Mobil-1, Bosch +4s, 160 Stat, !EGR, !MAFless, !FRA, S3 TB

  3. #3

    Re: Is VE calibrated at same temp as Cranking VE

    the VE table, is not a "VE" in the true sense, the cranking VE is a true %.

    the real units of the VE table are grams.Kelvin/kPa so you can see it includes a temperature component (linear) in it.

    In 2.x we will allow you to view the VE table in either % or g.K/kPa

    I count sheep in hex...

  4. #4
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    Re: Is VE calibrated at same temp as Cranking VE

    Very cool. Thanks!

    I don't suppose you could shed some light on the AF ratio PID that can be used with narrowband. I was wondering if this is an AF ratio that the PCM calculates based on the amount of air and fuel it "sees", because it seems pretty accurate...I think.
    1998 Camaro Z28 M6: SLP Lid, Adj. Panhard, SFCs, CAGS!, Hotcam, Hooker Shorties, Katech Tensioner, Catback with Dynomax 17221 3\" Muffler, Mobil-1, Bosch +4s, 160 Stat, !EGR, !MAFless, !FRA, S3 TB

  5. #5
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    Re: Is VE calibrated at same temp as Cranking VE

    Quote Originally Posted by AnotherUser
    Very cool. Thanks!

    I don't suppose you could shed some light on the AF ratio PID that can be used with narrowband. I was wondering if this is an AF ratio that the PCM calculates based on the amount of air and fuel it "sees", because it seems pretty accurate...I think.
    I've always thought that it just displayed the commanded afr found by stoich/pe. Maybe I'm thinking of something else though.
    98 M6 TA, mods: tsp torquer(233/233 .589 112), Patriot golds, ls6 oil pump, ls6 intake, tsp lid, pacesetter LT\'s and ORY, magnaflow, fra, HPTUNER!

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    Re: Is VE calibrated at same temp as Cranking VE

    Quote Originally Posted by luv2spd

    I've always thought that it just displayed the commanded afr found by stoich/pe. Maybe I'm thinking of something else though.
    No. There is another PID for commanded AFR.
    1998 Camaro Z28 M6: SLP Lid, Adj. Panhard, SFCs, CAGS!, Hotcam, Hooker Shorties, Katech Tensioner, Catback with Dynomax 17221 3\" Muffler, Mobil-1, Bosch +4s, 160 Stat, !EGR, !MAFless, !FRA, S3 TB