8mm pulley chart

Discussion in 'PSI Superchargers Tech Questions' started by kgools, Oct 31, 2007.

  1. kgools

    kgools Member

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    Can someone hook me up with an 8mm pulley chart. I've been told that the TAFC guys are running 95 +/- over.

    Some people call it 195 over...which is it ?

    Thanks in advance

    Keith
    kg@superlifts.com
     
    #1
    kgools, Oct 31, 2007
  2. Blownalky

    Blownalky Top Sportsman

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    #2
    Blownalky, Oct 31, 2007
  3. Mike Canter

    Mike Canter Top Dragster
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    #3
    Mike Canter, Oct 31, 2007
  4. planbmotorsports

    planbmotorsports Member

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    It is real easy to do on a caculator if the chart does not go where you are or if you loose the chart. Just divide the bottom pulley number by the top pulley number. Say you have a 64 bottum and a 50 top. 64/50 equals 1.28 so the blower is turning 1.28 times faster than the crank so your overdrive is 28%. If the you are getting into the 100% and above overdrive then the number will be greater than 2.
     
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    planbmotorsports, Nov 1, 2007
  5. nitro4100

    nitro4100 New Member

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    I could be off on this but if your talking about NHRA tafc screw blowers I think 93% over is the max on them 125% for the TAD.
     
    #5
    nitro4100, Nov 1, 2007

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