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Chainsaw
RPM's......How much is too much after muffler mod????
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<blockquote data-quote="RED WOOD" data-source="post: 4316844" data-attributes="member: 96498"><p>Exactly, 9000 rpm is where it makes its max hp, not the max rpm under no load. I am thinking the 450 is pretty close to where it should be at about 12,500 under no load. I have not modded the muffler and it is 4-stroking at WOT but not in the cut.</p></blockquote><p></p>
[QUOTE="RED WOOD, post: 4316844, member: 96498"] Exactly, 9000 rpm is where it makes its max hp, not the max rpm under no load. I am thinking the 450 is pretty close to where it should be at about 12,500 under no load. I have not modded the muffler and it is 4-stroking at WOT but not in the cut. [/QUOTE]
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