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Old 08-30-2011, 05:52 PM
Yamahalover144 Yamahalover144 is offline
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What is the difference between high and low compression heads?
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Old 08-30-2011, 06:24 PM
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race fuel and pump fuel












it is the amount of are in the combustion chamber of the head usaly measured in CC's
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Old 08-30-2011, 06:59 PM
Yamahalover144 Yamahalover144 is offline
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I understand that much but but how does one give you more power than the other?
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Old 08-30-2011, 08:14 PM
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Buy compressing the fuel and air more it becomes more explosove and thus a bigger boom and giving you more HP. This is the same reason you can't run gas in a deisel motor. The fuel and air would expload before the piston ever hit TDC.
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Old 08-30-2011, 08:28 PM
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Here's a link to how a motor works.

http://www.2strokeheads.com/tech1.htm

Cutting the head may increase the compression, but you will need to modify the combustion chamber to correct the burn pattern. Some people think that putting in a thinner base gasket will get more power. Sometimes it actually goes the other way and you lose power.
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Old 01-15-2012, 01:05 AM
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And the high compression heads could be used at elevation too, the air is soo thin so the engine would take moore compression up there.
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