Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

'13-'14 DD15 Upgrade/Tuning

Discussion in 'Freightliner Forum' started by BigPerm, Dec 21, 2013.

  1. Dec 21, 2013 #1
    BigPerm

    BigPerm Medium Load Member

    511
    304
    Sep 4, 2012
    Fron Calif, NM, NV, & now TX.
    0
    Just curious, as I'm a company driver; With all the correct software, what can you tweak on a newer DDA-15 truck, still have some sort of emission quality...but make the driveability better?

    For instance ( and I know this is gonna get fairly technical )...I worked at a place that had all later model Macks. But... they had the laptop & all V-MAC stuff.

    I took a stock 63MPH truck, raised the cruise & top speed...BUT...changed the fuel curve in 7th, 8th, 9th, & 10th by a few %. Made it a completely new driver, w/o hurting the fuel economy.

    Be a specific as needed, I speak theory. I think this 66 MPH truck can run 70 w/o killing the mileage. It will gain mileage by the mile...slowing from 65 to 63-64MPH. Thinking running it up to the speed limiter sends a W.O.T. signal to the PCM. No?

    Thanx
     
    BigPerm, Dec 21, 2013
    BigPerm, Dec 21, 2013
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Dec 21, 2013 #2
    russtrucker

    russtrucker Road Train Member

    1,767
    337
    Mar 27, 2012
    Central PA
    0
    I'm sure you not gonna plugin Bully Dog GT to ecm. They aren't available for detroits after 2007.
     
    russtrucker, Dec 21, 2013
    russtrucker, Dec 21, 2013
    #2
  4. Feb 1, 2014 #3
    TheLittleGuy

    TheLittleGuy Medium Load Member

    389
    64
    Apr 13, 2008
    Nashville, TN
    0
    There's a couple diesel doctors in Effingham that can turn it up w/o flashing the ecm. Had one turn the speed limiter all the way up on my Coronado, only because he was cheaper than freightliner.
     
    TheLittleGuy, Feb 1, 2014
    TheLittleGuy, Feb 1, 2014
    #3
  5. Feb 1, 2014 #4
    russtrucker

    russtrucker Road Train Member

    1,767
    337
    Mar 27, 2012
    Central PA
    0
    One company driver from hirschbach had 455 hp on his Cascadia, he later went to a shop and tuned it up to 490 hp.
     
    russtrucker, Feb 1, 2014
    russtrucker, Feb 1, 2014
    #4
  7. Feb 2, 2014 #5
    TheLittleGuy

    TheLittleGuy Medium Load Member

    389
    64
    Apr 13, 2008
    Nashville, TN
    0
    Is that a DD13? My DD15 was factory set at 562hp
     
    TheLittleGuy, Feb 2, 2014
    TheLittleGuy, Feb 2, 2014
    #5
  8. Feb 2, 2014 #6
    russtrucker

    russtrucker Road Train Member

    1,767
    337
    Mar 27, 2012
    Central PA
    0
    It was DD15. I though dd15 max hp was 560 hp (before 2013).
     
    russtrucker, Feb 2, 2014
    russtrucker, Feb 2, 2014
    #6
  9. Feb 2, 2014 #7
    TheLittleGuy

    TheLittleGuy Medium Load Member

    389
    64
    Apr 13, 2008
    Nashville, TN
    0
    Just went to check the spec sticker on passenger visor and you're right. Says 560hp, 1800tq.
    That's interesting because when I had it in at the diesel doctor, he pulled the 562hp, 1850tq #s off the ecm. I saw it with my own eyes and remembered it because 562 seemed like a weird #. I'd always saw HP #s within increments of 25.
     
    TheLittleGuy, Feb 2, 2014
    TheLittleGuy, Feb 2, 2014
    #7
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.