Whipple Blower overdrive question

Discussion in 'PSI Superchargers Tech Questions' started by Danny Humphreys, Jun 1, 2004.

  1. Danny Humphreys

    Danny Humphreys Member

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    I know there is no way to say for sure, but here goes anyways. I am running a new style whipple on a 557" chevy motor @ 63% over making 48 lbs of boost. I want to drive the blower harder due to warmer weather and the next step is 69.2% over. Any guesses as to how much more boost it will make? This is a 10% increase in blower speed, so would it be safe to assume that the increase in boost would be less than 10% due to efficiency issues. maybe somewhere in the 2-3 lb range?
     
    #1
    Danny Humphreys, Jun 1, 2004
  2. Big Joe

    Big Joe New Member

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    I would also like to know about the amount of fuel you run throught the hat versus the port nozzles,percentages? Whipple says to run 70% throught the hat and 30% throught the ports and that is not what I run with the roots combination Thanks
     
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    Big Joe, Jun 2, 2004
  3. shawn davis

    shawn davis Member

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    DANNY WE'RE RUN FROM 62 TO 68 OVER AND NOT SEEN
    MUCH INCREASE.. MAYBE A POUND OR TWO MAX, ON A CHEVY W OLDS HEADS
     
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    shawn davis, Jun 2, 2004

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