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#1
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stroking=compression?
does stroking an engine generally give you higher compression?? i know compression has alot to do with ccs of combustion chambers and pistons, but dont it seem like from the piston moving further down the cylinder, and it's sucking in more air and fuel to compress??
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#2
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Swept volume into fixed volume is your static compression ratio. Thus, the longer the piston throw, the more swept volume and the more compression.
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#3
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And if the stroking involves pushing the piston further up the cylinder you reduce combustion chamber capacity... = more compression.
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#4
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Dynamic compression is when things really get interesting and I get lost. Cam duration, valve overlap and rpm all seem to effect it.
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#5
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I never have figured out my CR. My pistons were from Ross and for 9.5:1 comp.. The heads have stock chambers but I don't know the cc's. I don't have trouble burning 91oct gas. But my cylinders all register 185psi warm on a comp test. The starter, a Summit mini, doesn't seem to toil too hard to start it.
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#6
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Even over boring the cylinder increases the compression because the swept volume increases.
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#7
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