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SVTPerformance's Chain of Restaurants
The Distillery
E98?
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<blockquote data-quote="sohc_mshue" data-source="post: 12736218" data-attributes="member: 134646"><p>Every engine is going to be different with respect to mbt and different percentages of alcohol and no it will not necessarily be linear. I was just saying that your statement about FUEL having little affect on mbt was wrong. </p><p></p><p>C16 wanting more timing because an engine is knock limited on 93 is not always the case. There are many engines that are not knock limited on 93 and will still want a significant increase in timing running C16 or other high octane fuels. Heck even with C16 and Ethanol being both pretty knock resistant an engine will still want different timing running one vs. the other. </p><p></p><p>If one fuel burns slower than another then the slower burning fuel will want to be ignited earlier to achieve peak cylinder pressures at the proper crank angle after tdc for best power.</p></blockquote><p></p>
[QUOTE="sohc_mshue, post: 12736218, member: 134646"] Every engine is going to be different with respect to mbt and different percentages of alcohol and no it will not necessarily be linear. I was just saying that your statement about FUEL having little affect on mbt was wrong. C16 wanting more timing because an engine is knock limited on 93 is not always the case. There are many engines that are not knock limited on 93 and will still want a significant increase in timing running C16 or other high octane fuels. Heck even with C16 and Ethanol being both pretty knock resistant an engine will still want different timing running one vs. the other. If one fuel burns slower than another then the slower burning fuel will want to be ignited earlier to achieve peak cylinder pressures at the proper crank angle after tdc for best power. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
E98?
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