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SVTPerformance's Chain of Restaurants
The Distillery
Pulling timing with high intake temps on E85?
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<blockquote data-quote="JeremyH" data-source="post: 14524559" data-attributes="member: 160292"><p>Don't look at it as just cooling iat's, even though it does just as menthanol does (even when it's direct port sprayed in the intake runner next to the injector). But, no, ethanol doesnt contain more oxygen and energy than regular gasoline, but there is more volume of fuel being consumed which in turn allows for more oxygen, the injectors are pumping out 20-30% more fuel per cycle and your burning more of the fuel mixture. To make power you increase air and fuel delivery to the engine. As the ethanol vaporizes it removes alot more heat from the surroundings, so even though it has less energy(than gasoline) and puts out less btu's(generates less heat during combustion) it allows for a more complete burn of the fuel to get the most out of the fuel mixture, also because of the cooling properties of ethanol, the effective octane is greatly increased. So what all this does for you is allow for a cooler air/fuel charge with more fuel volume and a more complete burn, which means denser, more powerful combustion. This also helps remove carbon buildup and varnish in the engine and reduce emmissions. When you run more gasoline(either 100% or e10), a higher percentage of tha gasoline is not consumed during combustion which yields less efficient combustion and more deposits and emmissions.</p><p></p><p>It is the cooling/octane boosting properties of the ethanol that resists detonation. This is what also allows for alot more timing to be run safely for even more power.</p></blockquote><p></p>
[QUOTE="JeremyH, post: 14524559, member: 160292"] Don't look at it as just cooling iat's, even though it does just as menthanol does (even when it's direct port sprayed in the intake runner next to the injector). But, no, ethanol doesnt contain more oxygen and energy than regular gasoline, but there is more volume of fuel being consumed which in turn allows for more oxygen, the injectors are pumping out 20-30% more fuel per cycle and your burning more of the fuel mixture. To make power you increase air and fuel delivery to the engine. As the ethanol vaporizes it removes alot more heat from the surroundings, so even though it has less energy(than gasoline) and puts out less btu's(generates less heat during combustion) it allows for a more complete burn of the fuel to get the most out of the fuel mixture, also because of the cooling properties of ethanol, the effective octane is greatly increased. So what all this does for you is allow for a cooler air/fuel charge with more fuel volume and a more complete burn, which means denser, more powerful combustion. This also helps remove carbon buildup and varnish in the engine and reduce emmissions. When you run more gasoline(either 100% or e10), a higher percentage of tha gasoline is not consumed during combustion which yields less efficient combustion and more deposits and emmissions. It is the cooling/octane boosting properties of the ethanol that resists detonation. This is what also allows for alot more timing to be run safely for even more power. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
Pulling timing with high intake temps on E85?
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