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Old Oct 29, 2012 | 07:58 PM
  #19  
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stevieturbo
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From: Norn Iron
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Originally Posted by StephTell
A turbo would be too easy and I've done it before so therefor no fun.

Also, a whining supercharger fits the bill in the grandscheme of the bike I'm building.

The fact that bike engines aren't known for making a lot of power low down is completely irrelevant here.
I want as much low down grunt as possible within the boundaries I've set myself.
It would be rather silly not to use a type of charger that produces boost low down because motorbike engines aren't know for making power low down...

Besides: the engine is a 1226 cc engine with heads and cams specced for bottom/midrange grunt. That combined with short gearing and a supercharger will make for a bike that you don't have to rev the tits of to get it off the line!
Of course it is relevant. PD blowers offer power over a narrow rpm range. Motorbike engines to not operate over a narrow rpm range !
You will be limited by how much you can gear the blower to provide low rpm grunt, without it disintegrating at high rpm.

A PD blower is just a bad choice for a high rpm engine.
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