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Supercharger vs. RPM question

Discussion in 'Performance and Tuning' started by CarNDrvr, Oct 12, 2011.

  1. Oct 12, 2011 at 8:54 AM
    #1
    CarNDrvr

    CarNDrvr [OP] New Member

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    Gen III Supercharger making 6#, Thermostat, K&N filter
    I've got an '04 Tacoma 3.4L that I just installed a Gen III supercharger on. Its making right at 6# of boost pretty much all the way through the RPM range. Its acting kind of weird. Once I hit around 4000rpm you can feel the power all of the sudden pick up, even though the boost is at 6# the whole time. Is this normal or is something not adjusted properly?
     
  2. Oct 12, 2011 at 9:54 AM
    #2
    ERIC

    ERIC Well-Known Member

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    most likely its because there is where the engine is making its most power. A supercharger will change how the engine works so the peak power range will be different.
     
  3. Oct 12, 2011 at 10:07 AM
    #3
    arrrghhh

    arrrghhh Well-Known Member

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    Indeed. From what I've gleaned, variable valve timing helps smooth out the power curves, so VVT-i motors don't have such a dramatic difference in RPM range powa.
     
  4. Oct 12, 2011 at 10:15 AM
    #4
    horwitzs

    horwitzs Well-Known Member

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    Dayton, WA
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    You may be getting boost at all times, but engines do not make the same horsepower at all RPM.
    The cam profile, valve overlap, etc. all effect the power curve. You are just feeling where the engine is really coming into it's power.
     
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