how tight should a blower belt be

Discussion in 'PSI Superchargers Tech Questions' started by blown1020, Oct 8, 2006.

  1. blown1020

    blown1020 New Member

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    how do most go about tightening a blower belt and how tight should it be?
     
    #1
    blown1020, Oct 8, 2006
  2. td1506

    td1506 Member

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    blower belt

    about one inch of movment on the opposite side of the idler pulley. this must be done cold. as the engine warms up the growth of the engine will take up the slack. hope this helps .
     
    #2
    td1506, Oct 8, 2006
  3. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    depends...

    depends on application...

    on a screw blower 8mm application, they seem to live longer running them tight. about 3/4" cold...1/4" tight.

    knock on wood...3.5 yrs crew chief on cannon's car, 1.5 years driving fc....no blower belt failures.

    we put 8-9 runs on belts.

    oh, btw, rbssuperchargers.com is the best place to get your belts!
     
    #3
    Will Hanna, Oct 9, 2006
  4. michael hall

    michael hall New Member

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    belt

    it should have about 1" play or less, and is adjusted with the idler pulley...
     
    #4
    michael hall, Oct 10, 2006
  5. T.A.D. 776

    T.A.D. 776 New Member

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    Always check tension again after spinning the engine over. These tight blowers will give you a false feel.
     
    #5
    T.A.D. 776, Oct 11, 2006
  6. was R4K

    was R4K Member

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    RCD says tighten with idler pulley untill tension is like a violin string- tight!
     
    #6
    was R4K, Oct 11, 2006

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