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TBI VRS TPI

Discussion in 'The Garage' started by tgswillys, Oct 19, 2003.

  1. tgswillys

    tgswillys Registered Member

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    HEY GUYS IM ABOUT TO DO A HEART TRANSPLANT IN MY WILLYS AND IM HAVING A HARD TIME DECIDING WHICH WAY TO GO /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif I HAVE ACCESS TO A 350 TBI WITH HARNESS AND A 305 TPI WITH HARNESS. I'VE HEARD THAT WITH THE TPI I WILL HAVE MASS TOP END BUT LACK ON THE LOW END AND IM GRANNY GEAR KINDA GUY. ANY INPUT ON THE DIFFRENCE??
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    TPI was designed for lots of low end torque not top end.
     
  3. 88Silverado

    88Silverado 1/2 ton status

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    Heres a good link on TBI and TPI.
    The simple setup is TBI.

    TBI and TPI
     
  4. Thunder

    Thunder 3/4 ton status

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    If you are going to stay stock or mildly modified I perfer TBI in a truck for its simplicity and lower cost.
    Both TBI and TPI build good torque.
    If you are going to modify the engine with a hotter Cam and more air flow then I would go with TPI. Because they are Mass Air flow based system they tolerate engine mods better than TBI systems.
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    Sounds like a great reason to put the TPI on the 350, and have the best of both worlds. /forums/images/graemlins/smile.gif


    TPI as it came from the factory was not a high RPM powerhouse. The long runners limit upper end horsepower, but torque is very impressive.
     

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