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Discussion Starter #1
jsut wondering what kinda power difference and performace differences is between the 600 EFI Power Valve engine and non power valve engine in the ZR sleds??
 

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They say the Power Valves will give you around 5-10 more ponies...
 

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and usually some more low end torque
 

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i had an 00 zr 600 and with out pv's and i now have an 02 w/ pv's and there is def a difference in power. a little more snap
 

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the pvs close at low throttle to give the engine more push at the bottom then open more at the top so they give you more grunt all around.

A difference between a apv 500 and a nonapv 500 isaround 20 hp so maybe that will give you a perspective as to how much they actually help.
 

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Discussion Starter #6
k excellent, im looking at getting a zr with maybe a 600 power valve and long track it hopefully for next season, just throwing ideas around now
 
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