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/k mechanical engineers kam in!, ron97 Ron97 engine compression ratio
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SUSdestEX
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 Dec 4 2014, 08:34 AM, updated 12y ago
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I have some questions, I'm no engineer in mechanical field and I only have a general idea on how an engine works so correct me if I'm wrong Question: does higher RON allows for higher performance in normal car? Eg myvi saga Fact: A higher RON allows for a higher compression ratio without knocking Doubt: to mechanical engineers, does a normal car engine adjust it's own compression ratio to the fuel octane ratio? If it's not variable then wouldn't it compress the fuel back to the same ratio? Then wouldn't the performance be the same between RON 95 and RON97 if the compression ratio is the same?  This post has been edited by destEX: Dec 4 2014, 08:45 AM |
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SUSdestEX
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Dec 4 2014, 08:42 AM
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QUOTE(amxpayne67 @ Dec 4 2014, 08:37 AM) The compression ration between RON95 and RON97 is different. RON97 can hadle more pressure thus when combust release more energy, that's all about it. Most of the time you can't feel the difference, except when you paying for your fuel. Just use whatever fuel recommended for your particular car model. Yes ron97 can handle more pressure but who puts the pressuee? The engine right? Then the compression ratio is determined by the engine, so back to my main question, is the engine compression ratio variable for normal msia cars |
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