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Benefit of lower compression? HG

Old 04-13-2010, 05:35 PM
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Default Benefit of lower compression? HG

What is the beneffit in lower the compression via headgasket for a turbo aplication?

For example, just i can go the same 200hp just safer than with a single headgasket?
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Old 04-14-2010, 08:08 PM
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high compression ratio will amplify the assbeat on a turbocharged engine's boost. keeping lower compression ratio keeps your engine safer and u can run more boost.

any reciprocating motor on aircraft run as low as 7:1 compression ratio cuz they run high amounts of boost on the motor at altitudes.

finding compression ratio: bore+stroke+head clearance / head clearance
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Old 04-16-2010, 11:27 AM
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A lower compression motor can run more timing and boost at the same octane compared to a higher compression motor. It will feel laggy comparied to the hi-comp motor, but it will be easyer to make more power.
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