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cummins m11+

Discussion in 'Trucks [ Eighteen Wheelers ]' started by earthmover, Jul 20, 2011.

  1. Jul 20, 2011 #1
    earthmover

    earthmover Medium Load Member

    563
    20
    Jan 27, 2009
    castalia , north carolina
    0
    how much power can i turn this up to??i had a ecm replaced in my truck back in dec.09 and had to take it back to cummins atlantic 3 times cause they sent the old ecm out without getting the programs ..anyway i think that either the truck was turned up or they just dont have the tq set right...i have to shift gears like never before ... and its killing me ...the truck is a freightliner dump cummins m11+ 280hp with 1050tq at 1800 i think the trans is a rto14709mll, and rear gear is 4.11 with 11.22.5 tires in the back and 425.65.22.5 in the front ...the guy that works on my truck tells me no dont do it you my blow it but man he's not the 1 gotta shift this gears all the time.... right now have see 6.7/7mpg and runs about 75 tops loaded ...so what your thoughts guys how much and would you turn the wick up or just the tq for the pulling??? thanks mike

    also i have heard of people saying the bully dog type of stuff will work is that so???
     
    earthmover, Jul 20, 2011
    earthmover, Jul 20, 2011
    #1
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  3. Jul 20, 2011 #2
    Kittyfoot

    Kittyfoot Crusty Ancient

    2,092
    3,056
    Sep 21, 2009
    Sorrento, Louisiana
    0
    M11's ain't exactly powerhouses y'know. Nor do they live long even in stock form.
     
    Kittyfoot, Jul 20, 2011
    Kittyfoot, Jul 20, 2011
    #2
  4. Jul 20, 2011 #3
    GrillN

    GrillN Bobtail Member

    45
    7
    Jul 5, 2011
    Miami,FL
    0
    If I remember correctly, years ago I had an M11 set at 330hp.
     
    GrillN, Jul 20, 2011
    GrillN, Jul 20, 2011
    #3
  5. Jul 21, 2011 #4
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,642
    Oct 11, 2010
    Borispol, Ukraine
    0
    Gentelmen! try to work with CPLs. Sometimes to improve engine HP we had to change some power related parts.
     
    Pablo-UA, Jul 21, 2011
    Pablo-UA, Jul 21, 2011
    #4
  7. Jul 22, 2011 #5
    AUSSIE DAVE

    AUSSIE DAVE Road Train Member

    1,032
    176
    Feb 21, 2010
    OZ - Brisbane
    0
    Mine is rated at 400hp, but 99% of the time i only use about 350hp of the 400hp. dont want to wear it out too quickly.
     
    AUSSIE DAVE, Jul 22, 2011
    AUSSIE DAVE, Jul 22, 2011
    #5
  8. Jul 22, 2011 #6
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,642
    Oct 11, 2010
    Borispol, Ukraine
    0
    M11 is gutless, but very reliable. more reliable N14. The only bad thing I wanna say - one cyl. head. It is heavy and it is not so easy to remove cyl. head.
     
    Pablo-UA, Jul 22, 2011
    Pablo-UA, Jul 22, 2011
    #6
  9. Jul 22, 2011 #7
    AUSSIE DAVE

    AUSSIE DAVE Road Train Member

    1,032
    176
    Feb 21, 2010
    OZ - Brisbane
    0
    hey pablo, you are so right about the cyl head being heavy, I lifted mine out by hand by myself, its a very heavy sucker, I think over a 100lbs or more next time Im useing a crane or block and tackle.
     
    AUSSIE DAVE, Jul 22, 2011
    AUSSIE DAVE, Jul 22, 2011
    #7
  10. Jul 22, 2011 #8
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,642
    Oct 11, 2010
    Borispol, Ukraine
    0
    the problem is to fit it back. w/o crane it is easy to damage gasket.

    Now cummins makes ISM. it is greate engine too. No usual for ISX problems.

    Here we have E3-E5 calibrated ISMe. The only thing I wanna add to this ECM - cyl. self ballancing like Volvo and Mercedes do!
     
    Pablo-UA, Jul 22, 2011
    Pablo-UA, Jul 22, 2011
    #8
    123456 Thanks this.
  11. Jul 22, 2011 #9
    dieselroarmt875b

    dieselroarmt875b Medium Load Member

    315
    58
    Aug 26, 2008
    YOURAPEEIN
    0
    they replaced this engine with isx11.9 developed togeather with chines Dongfeng
     
    dieselroarmt875b, Jul 22, 2011
    dieselroarmt875b, Jul 22, 2011
    #9
  12. Jul 23, 2011 #10
    GrillN

    GrillN Bobtail Member

    45
    7
    Jul 5, 2011
    Miami,FL
    0
    M11's are good but my N14's are a totally different animal.
     
    GrillN, Jul 23, 2011
    GrillN, Jul 23, 2011
    #10
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