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Power loss on grades

Discussion in 'OffRoad Design' started by mudbog42, Jul 20, 2006.

  1. mudbog42

    mudbog42 1/2 ton status

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    I have an 86 K-5 and when doing about 75 on a flat highway I'm fine but as soon as I start to climb a grade, I seem to lose a lot of power. It slowly goes down to 70, then 65, 60, and sometimes 55 or below depending on the grade. Does anyone know what could cause this big of a powerloss?
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Change gears or get a torquey motor . Basically it isn't geared for climbing in 2wd . Just put it in 3rd and go is all you can do until you regear .

    Drove to Moab and back with a 305/700r4 , 33's and 3.73 gears . Didn't exactly win no races uphill , but I made it . Get a tach , you'd be surprised at how you dont even over rev the motor in 2nd with it floored :)
     
  3. cbbr

    cbbr 1 ton status GMOTM Winner

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    You will get far more responses to this if you post in in the Garage....
     
  4. mudbog42

    mudbog42 1/2 ton status

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    I have 35's 4:88's in both axles and a new jasper 350 motor. 3rd makes a little bit of a different but not much. I have a tach and at about 70 75 it makes from 2500 to 3000 rpms and in third almost 4000 rpms.


     
  5. kennyw

    kennyw N9PHW Premium Member

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    What grades? Those are speed bumps...
     
  6. TDAWG1

    TDAWG1 1/2 ton status Premium Member

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    Do you have any smoke at start up or even take off. Might be a Valve seal problem starting
     
  7. mudbog42

    mudbog42 1/2 ton status

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    No smoke at all, its a brand new engine
     
  8. TDAWG1

    TDAWG1 1/2 ton status Premium Member

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    :haha: Well I'll take it! Ha Ha:haha:
     

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