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Propane systems
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<blockquote data-quote="4link" data-source="post: 768663" data-attributes="member: 16178"><p>this is no myth about power loss but it's not 10 percent loss it's 20 percent. this is why. as propane enters the the engine it's a vapor. this displaces oxygen. you could recover some ofyour loss by polishing the intake and cyl. head runners to a mirror finish. the propane has 28 percent less energy than gas as compared gal for gal. 1gal of propane has 92,000 btu's of energy. gas has 126,000 btu's of energy per gal..</p><p></p><p></p><p>this is correct about ignition timing. lose the vacuum advance and put everything mechanical as you drop timing the more throttle you give. increase compression ratio as this fuel is 105 octane. no more than 11:1 as you will create problems.</p></blockquote><p></p>
[QUOTE="4link, post: 768663, member: 16178"] this is no myth about power loss but it's not 10 percent loss it's 20 percent. this is why. as propane enters the the engine it's a vapor. this displaces oxygen. you could recover some ofyour loss by polishing the intake and cyl. head runners to a mirror finish. the propane has 28 percent less energy than gas as compared gal for gal. 1gal of propane has 92,000 btu's of energy. gas has 126,000 btu's of energy per gal.. this is correct about ignition timing. lose the vacuum advance and put everything mechanical as you drop timing the more throttle you give. increase compression ratio as this fuel is 105 octane. no more than 11:1 as you will create problems. [/QUOTE]
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