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torque and stall converters

Discussion in 'The Garage' started by 85burbanator, Oct 17, 2004.

  1. 85burbanator

    85burbanator 1/2 ton status

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    what do they do? what are there benifits? i bought a blazer and it has a 2500 stall converter. i read z3pr's post about his trans woes and there was a post in there about how a trans with low fluid seems like it has a high stall converter. the motor has to wind up a bit to get the vehicle moving. should i replace it or does it actually help?
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    it helps get the motor in the power band before the truck starts to move.
     
  3. 85burbanator

    85burbanator 1/2 ton status

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    ahh. so it stalls the trans till the motor reaches 2500 rpms? thats what i figured. so technically its beneficial to the vehicle. ill be using it mostly for mudboggin and trail riding.
     
  4. sickquad

    sickquad 1/2 ton status

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    I think "stall" means that it will stall the transmission on the initial launch until the motor reaches a certain RPM when there is resistance on the truck. The resistance would be your foot on the brake. Am I right?

    I bet the answer is on howstuffworks.com.
    -Chris
     
  5. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    [ QUOTE ]
    so it stalls the trans till the motor reaches 2500 rpms?

    [/ QUOTE ]
    no, not exactly. stall speed is the fastest the engine can spin when the tranny is stoped in gear. (brakes applied) the higher the stall speed, the "looser" the converter is. a 2500 stall converter may start moving the truck at 1100, where a stock converter (1400-1600 stall) may start moving the truck at 600 rpm. the higher the stall the higher rpm is reached before the truck starts moving.
     
  6. k20

    k20 3/4 ton status

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    if your running a higher stall converter you will need to be sure to run a fairly large cooler to dissipate all the heat the slippage will create.
     
  7. 85burbanator

    85burbanator 1/2 ton status

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    deffinately getting a cooler. i thin i might run it for a while and replace it with a different unit.
     

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