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SVTPerformance's Chain of Restaurants
The Distillery
e85 and detonation
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<blockquote data-quote="manolith" data-source="post: 13469734" data-attributes="member: 123563"><p>e85 does detonate if given the right conditions.. but it is more resistant to detonation than 93 octane fuel. e85 burns at a lower temperature than 93 octane fuel does and this will help with reducing heat spots in the combustion chamber that will ignite the fuel prematurely. also because you are dumping so much more fuel in the intake port it will actually cool the intake air charge. additionally e85 has a much higher auto ignition temperature than 93 octane as well. whcih means that it requires a much hotter hot spot in the combustion chamber to pre ignite. for this reason you can run alot more timing on e85 and get away with higher cylinder presures than with 93 octane. but if the conditions are right there will be pre ignition which could result in engine damage.</p></blockquote><p></p>
[QUOTE="manolith, post: 13469734, member: 123563"] e85 does detonate if given the right conditions.. but it is more resistant to detonation than 93 octane fuel. e85 burns at a lower temperature than 93 octane fuel does and this will help with reducing heat spots in the combustion chamber that will ignite the fuel prematurely. also because you are dumping so much more fuel in the intake port it will actually cool the intake air charge. additionally e85 has a much higher auto ignition temperature than 93 octane as well. whcih means that it requires a much hotter hot spot in the combustion chamber to pre ignite. for this reason you can run alot more timing on e85 and get away with higher cylinder presures than with 93 octane. but if the conditions are right there will be pre ignition which could result in engine damage. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
e85 and detonation
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