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Smaller ALT pully for superdutys...look inside.

Discussion in 'Ford Trucks' started by Dissociative, Jan 5, 2010.

  1. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    i run one and my digital volt gauge that use to ALWAYS say 12.6 at idle slowly climbs up to 13.5-14.0 just sitting there.

    I run a plow all winter....as much of a load as 2-3 super stereos with my lights and spreader and heater and such....This has helped me TREMENDOUSLY..all the while running MY stereo too

    i am also running a 250 amp alt i switched to shortly after the pulley swap and i got the same results from the new alt. Of course the shop that built me the alt had never seen a pulley that small in 8 rib and was VERY interested where i got it after i showed them the results we got. They also did some quick math and told me that the alt's on our trucks even WITH the small pulley wouldn't ever spin fast enough to harm them on the diesel or the 5.4....he suggested being into the 7k rpm range to start meltdown.

    i run 2 yellow top optimas and despite the fact that they are yellows and discharge/ recharge slowly they work great IMO for what i do.

    i use to get around 16 hours of work time before i noticed the volts hitting 12.6 too often and not climbing back up quick....a sure sign of depleted batteries. Now with the extra amps i worked 24 hours last storm and really never saw below 13.3V......i was VERY impressed.

    Everything works better, faster, longer.....what can i say it's good.

    I would gladly post numbers for all you guys, but i don't own the load tester machine......and don't really feel like swapping alts and pulleys again.



    --------------------text from maker------------
    Anyone looking to increase the charging for their truck. Going to a larger alternator will often help. The only problem is that an alternator needs to be spun at a certain speed to get that amperage out of it and often times an alternator rated to put out more amps actually produces less than the one you replaced at the lower rpms.

    This pulley was designed for vehicles that need more amperage at lower engine speeds. The stock 6.0L pulley is 2.79:1. This pulley is 2.09 inches in diameter vs 2.73inches stock. It was originally used in 6-rib applications for a local police department since they spend a ton of time at idle with lots of lights and accessories. This pulley will fit single alternator setups without requiring a smaller belt. Dual Alternators require a shorter belt and a smaller idler pulley.
    www.gogodiesel.com




    [​IMG]
     
  2. massfirefighter

    massfirefighter Senior Member
    from mass.
    Messages: 128

    Sweet! Just what I've been looking for.
     
  3. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    tell him Dissociative sent you.......he's a VERY good guy.......
     
  4. hydro_37

    hydro_37 PlowSite Veteran
    from iowa
    Messages: 3,790

  5. grec-o-face

    grec-o-face Senior Member
    Messages: 485

    DOUBLE CHECK your set-up first guys!!!!!
    most of the 5.4's are 8 rib, and suprisingly my V10 is a 6 rib!!!

    Don't order the wrong pulley!!!
     
  6. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    he sells the 6 rib also.......just ask
     
  7. 02powerstroke

    02powerstroke PlowSite.com Addict
    Messages: 1,188

    will this work for a 7.3L?
     
  8. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    yes....7.3 is fine

    same with gassers....he has 6 or 8 rib
     
  9. Ladder15

    Ladder15 Junior Member
    Messages: 26

    My '03 7.3 runs 14.3 volts almost all the time with the stock pully. There is a delay from the time it is started (around 12.6v) to the time I am driving of about 30 seconds before it appears to be at full charging voltage. I would have thought the voltage regulator would have kept this constant. Anyway, I just had to replace the original batteries from Jan '03. They don't owe me anything!
     
  10. suzuki0702

    suzuki0702 Senior Member
    Messages: 649

    wow! you are the man! just what ive been looking for!!

    edit: $75 bux??? thats a little steep dont ya think?
     
  11. nevrnf

    nevrnf Senior Member
    Messages: 456

    I agree that is a little steep. My guy has these. $ 40 shipped .
     
  12. suzuki0702

    suzuki0702 Senior Member
    Messages: 649

    put me in contact with him please nevrnf
     
  13. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    damn.....well...i dunno...i didn't know they were around.

    post the info Tony...then i can ask Doug WTF
     
  14. Scenic Lawnscape

    Scenic Lawnscape Senior Member
    Messages: 481

    If you swap out to a smaller pully, wouldn't you need a smaller belt?
     
  15. TJS

    TJS PlowSite.com Addict
    Messages: 1,339

    That is my thought as well, dunno if the idler will take up the slack.
    T.J.
     
  16. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    not on the 6.0.....or the 7.3 from what i was told.....i swapped mine with hand tools in the parking lot.

    the dual alt. set-ups you get a smaller belt and smaller idler pulley

    IN REGARDS TO THE BELT NEEDING TO BE SHORTER
     
    Last edited: Jan 8, 2010
  17. Scenic Lawnscape

    Scenic Lawnscape Senior Member
    Messages: 481

    George

    Was this in response to my question or someone else's?
     
  18. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    yours..................
     
  19. Scenic Lawnscape

    Scenic Lawnscape Senior Member
    Messages: 481

    I have a 5.8 in my truck, would happen to know the answer about that one?

    thanks
     
  20. Dissociative

    Dissociative 2000 Club Member
    Messages: 2,066

    i really doubt you need to....but let me make a call