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Supercharger vs. RPM question

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Old 10-12-2011, 08:54 AM   #1
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Supercharger vs. RPM question

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?
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Old 10-12-2011, 09:54 AM   #2
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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.
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Old 10-12-2011, 10:07 AM   #3
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Quote:
Originally Posted by ERIC View Post
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.
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.
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Old 10-12-2011, 10:15 AM   #4
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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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