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Thread: looking at 6.5 crate engines today...

  1. #1
    Join Date
    Jul 2009
    Posts
    362

    Default looking at 6.5 crate engines today...

    That fresh 6.5 motor in the banner heading has captured my eye for a while so I finally clicked on it...

    Nice engine.

    Why dose the mechanical 6.5 make 200hp n 440tq and
    The electronically operated 6.5 only make 190hp n 385tq...

    It appears there the same bloody engine ?

    Can my electronic 6.5 be turned up to the power of the mechanical unit ?

    Mike
    1995 GMC K2500 "Turbine":
    6.5-T (F), 4L80E, 4.10 gears, LT7.50-16D tires, 140K miles.

    Mods/Upgrades:
    1. D-tech PMD #9 Resister bumper mounted.

    2. Air-box Deletion / Open air intake.

    3. CDR Deletion / Valve cover breather.

    4. Open exhaust.

    5. 3500HD trans cooler.

    6. Mechanical waste gate conversion.

    7. Gauges: Engine Oil temp, Boost, Trans temp.

    Mike

  2. #2
    Join Date
    Feb 2007
    Location
    Baja California Sur Mexico
    Posts
    2,804

    Default

    #9 resistor in the PMD could get you 205 hp.
    Grant H.
    1995 6.5 turbo GMC K2500 extra cab 4x4 pickup, PMD under bumper, mechanical wastegate, 228,000 miles, rebuilt engine, 4.10 diff, 16 mpg
    1994 6.5 turbo GMC K2500 4x4 suburban "F" VIN #9 resistor, PMD in the bumper, mechanical waste gate, 226,000 miles, Positrac 3.73 diff, 17 mpg highway.
    1982 4x4 shortbed 6.2 Chev 260,000 miles untouched motor 17 MPG 4.27 diff. Best thing I ever owned, 21 years.

  3. #3
    Join Date
    Jul 2009
    Posts
    362

    Default

    I'm not worried about the horse power I want the 440-460 torque.

    I did the intake exhaust and the resister and my rig is still a dog under load...

    Is there a difference in the 2 motors ?

    Would I gain power by swapping my electo 6.5 for the mech 6.5 ?

    I wished I had the 440tq as the 380tq- 385tq don't seem to be cutting it...

    Mike
    1995 GMC K2500 "Turbine":
    6.5-T (F), 4L80E, 4.10 gears, LT7.50-16D tires, 140K miles.

    Mods/Upgrades:
    1. D-tech PMD #9 Resister bumper mounted.

    2. Air-box Deletion / Open air intake.

    3. CDR Deletion / Valve cover breather.

    4. Open exhaust.

    5. 3500HD trans cooler.

    6. Mechanical waste gate conversion.

    7. Gauges: Engine Oil temp, Boost, Trans temp.

    Mike

  4. #4
    Join Date
    Jul 2008
    Location
    S. Ohio
    Posts
    566

    Default

    I watched a 5.9 12 v get the timing retarded slightly yesterday.I rode in it before and after as a passenger.The boost went up 3 or so lbs and the midrange tq felt earlier.Wonder if this would work on ours.His stack went from gry/black to black but it felt much better.Kinda made me miss a mechanical truck.......my 5.9 is all sensors ect....as for DS/DB series pumps,I had a 97 or a 98 1 ton sw for a couple months(a gm mechanic friend asked if it ran good,I replied yes,he said sell it now) it ran awesome.I towed once with it,11k like it wasnt even there.It did however have 4:10s
    Last edited by Stumped; 10-19-2009 at 11:29 AM.
    still driving stuff with an 8 track,not switching to those newfangled cassettes thingys...... I cant find anything since I moved all my junk

  5. #5
    Join Date
    Jul 2009
    Posts
    362

    Default

    So then your saying if I ditched the electronics for mechanical I would more then likely gain some power ?

    Mike
    1995 GMC K2500 "Turbine":
    6.5-T (F), 4L80E, 4.10 gears, LT7.50-16D tires, 140K miles.

    Mods/Upgrades:
    1. D-tech PMD #9 Resister bumper mounted.

    2. Air-box Deletion / Open air intake.

    3. CDR Deletion / Valve cover breather.

    4. Open exhaust.

    5. 3500HD trans cooler.

    6. Mechanical waste gate conversion.

    7. Gauges: Engine Oil temp, Boost, Trans temp.

    Mike

  6. #6
    Join Date
    Jul 2008
    Location
    S. Ohio
    Posts
    566

    Default

    That 97 or 8,I have had so many vehicles...was electronic..and pulled awesome ...programming i assume...I prefer mechanical injection as I like to tinker.an allen wrench and watch the mirror for smoke.Mine responded very well to 1/4 turn but still wouldnt pull what that 1 ton would
    still driving stuff with an 8 track,not switching to those newfangled cassettes thingys...... I cant find anything since I moved all my junk

  7. #7
    Join Date
    Jul 2009
    Posts
    362

    Default so keep running what i got ?

    Now that I have the dozen issues repaired just continue running my current setup then ?

    Say can the timing be advanced on my electro IP ?

    Mike
    Last edited by M123KT-450; 10-19-2009 at 01:16 PM.
    1995 GMC K2500 "Turbine":
    6.5-T (F), 4L80E, 4.10 gears, LT7.50-16D tires, 140K miles.

    Mods/Upgrades:
    1. D-tech PMD #9 Resister bumper mounted.

    2. Air-box Deletion / Open air intake.

    3. CDR Deletion / Valve cover breather.

    4. Open exhaust.

    5. 3500HD trans cooler.

    6. Mechanical waste gate conversion.

    7. Gauges: Engine Oil temp, Boost, Trans temp.

    Mike

  8. #8
    Join Date
    Jul 2009
    Posts
    362

    Default

    So is there any freebies or cheap mods I can do to my truck for better performance ?

    Mike
    1995 GMC K2500 "Turbine":
    6.5-T (F), 4L80E, 4.10 gears, LT7.50-16D tires, 140K miles.

    Mods/Upgrades:
    1. D-tech PMD #9 Resister bumper mounted.

    2. Air-box Deletion / Open air intake.

    3. CDR Deletion / Valve cover breather.

    4. Open exhaust.

    5. 3500HD trans cooler.

    6. Mechanical waste gate conversion.

    7. Gauges: Engine Oil temp, Boost, Trans temp.

    Mike

  9. #9
    Join Date
    Jul 2008
    Location
    S. Ohio
    Posts
    566

    Default

    Timing adv will increase mpg slightly,but will cause EGTs to lower which means less boost which leads to.......
    still driving stuff with an 8 track,not switching to those newfangled cassettes thingys...... I cant find anything since I moved all my junk

  10. #10
    Join Date
    Jul 2009
    Posts
    362

    Default

    Which leads to.... Less POWER ?

    I'm guessing...

    I wouldn't mind turning my 20mpg truck into a 15mpg truck for some more grunt.

    All I want is enough extra grunt so I can throw 1500lbs in the bed hitch 3000lbs behind it and head north rolling 68-72mph and pull a few hills without straining hard.

    I was told i already have 4.10 gears but it sure don't seem to pull like i have them tho it pulls like i got some 3.42's or 3.08's in it, But i'm running 70mph@2,600rpm in OD 60mph@3,000rpm in DD. . .which seems about right for 4.10's n 30" tires. . .

    Mike
    Last edited by M123KT-450; 10-19-2009 at 07:29 PM.
    1995 GMC K2500 "Turbine":
    6.5-T (F), 4L80E, 4.10 gears, LT7.50-16D tires, 140K miles.

    Mods/Upgrades:
    1. D-tech PMD #9 Resister bumper mounted.

    2. Air-box Deletion / Open air intake.

    3. CDR Deletion / Valve cover breather.

    4. Open exhaust.

    5. 3500HD trans cooler.

    6. Mechanical waste gate conversion.

    7. Gauges: Engine Oil temp, Boost, Trans temp.

    Mike

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