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Thread: Cylinder Select?

  1. #11
    Lifetime Member SinisterSS's Avatar
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    FYI - gearheads aren't supposed to ever deal with an engine less than 8 cylinders. 8)
    2009 Z06 LS7 / 2008 Sierra Denali AWD L92 6L80E
    Flashing control modules since 2001. 8-)
    Who needs a MAP sensor on a supercharged LS6 anyway.


  2. #12
    Forum tyhee Site Admin GMPX's Avatar
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    Guys,

    Are you sure the ECOTEC uses the E40?.
    Some notes posted (edited) from a web site -

    "GMPT Model Year 2004 Warren (E40) program Model Year 2004 V8 Engine Controller".

    "GMPT MY2006 E38 Engine Controller Program, It is targeted for a variety of applications for passenger cars and trucks. It will work with 4, 5, 6, and 8 cylinder engine applications".

    Looks like the E38 will be the universal controller, yes the E40 will run in 4cyl mode but perhaps only when in DOD mode.

    As for the LS1 PCM, I suspect the problem would be the crank/cam trigger signals not being a match. If it were so universal GM would have the same PCM for the 4cyl engines and the 3800V6, of course they do not.

    Cheers,
    Ross

  3. #13
    Forum tyhee Site Admin GMPX's Avatar
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    Quote Originally Posted by SinisterSS
    FYI - gearheads aren't supposed to ever deal with an engine less than 8 cylinders. 8)
    Rick, you just know this thread will now turn into an argument now :wink:

    Cheers,
    Ross

  4. #14
    Lifetime Member SS2win's Avatar
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    Quote Originally Posted by Blacky
    Oh, I thought you were asking if the V8 operating systems can be modified to run an LS1 using only 4 cylinders :oops:
    That could be useful if you're looking to make a big air compressor. :lol:
    2001 Camaro SS #2020
    Stock LS1 w/InconTT | REV Springs | Ti retainers | M6 | McLeod Twin Clutch
    UMI RR K Member | SLP Subframe Connectors | Global West TA | BMR PHB | Metco LCA
    996 Brake Kit| 17" CCW Classics | 17x11 ZR1 Replicas on all four corners

    425@6lbs | ???@12lbs | EFILive Custom OS3 | !MAF | SD
    11.73@12x/1.7 on worn out nittos... yaaawn!

  5. #15
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    Sorry it is NOT an E40, but a P12 used AFAIK only on the supercharged ECOTECs

    So I know THEY can be used in speed density or MAF, but figured it might take a couple years to sort out the code for remapping, rev/speed limiters, DTC masking etc etc, so was looking if the PCM used with the LS1 could been used in a 4cyl manner, or not.

    Not too concerned at this point about the potential ignition issues as we can create pretty much any crank wheel required (4X for HVS based (2000 LD truck or even the asymetrical 24X for COP etc)

    At this point just attempting to determine if it's viable of if we should be just focussing on reprogramming the P12 or aftermarket standalone such as the MOTEC.
    Thanks
    WOT

  6. #16
    Lifetime Member SinisterSS's Avatar
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    Quote Originally Posted by GMPX
    Quote Originally Posted by SinisterSS
    FYI - gearheads aren't supposed to ever deal with an engine less than 8 cylinders. 8)
    Rick, you just know this thread will now turn into an argument now :wink:

    Cheers,
    Ross
    People need to start putting a foot down to the younger generation. Imagine what sissy cars the ricers of today will be driving in 30 years. :o

    It's called better gearheads through education. 8)
    2009 Z06 LS7 / 2008 Sierra Denali AWD L92 6L80E
    Flashing control modules since 2001. 8-)
    Who needs a MAP sensor on a supercharged LS6 anyway.


  7. #17
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by SinisterSS
    FYI - gearheads aren't supposed to ever deal with an engine less than 8 cylinders. 8)
    ...and must have lots of cubes... 8)

  8. #18
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    Well I guess it could be a P5 not an E40
    Anyone know how to tell the difference?
    WOT

  9. #19
    Forum tyhee Site Admin GMPX's Avatar
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    Quote Originally Posted by WopOnTour
    Well I guess it could be a P5 not an E40
    Anyone know how to tell the difference?
    WOT
    It will either be stamped in the case or on a label.

    Cheers,
    Ross

  10. #20
    Lifetime Member emarkay's Avatar
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    Quote Originally Posted by GMPX
    Quote Originally Posted by SinisterSS
    FYI - gearheads aren't supposed to ever deal with an engine less than 8 cylinders. 8)
    Rick, you just know this thread will now turn into an argument now :wink:

    Cheers,
    Ross
    I thought it was more like "real gearheads don't let friends do FWD..."



    MRK

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