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SVTPerformance's Chain of Restaurants
The Distillery
calculation for fuel injector limit with e85?
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<blockquote data-quote="Kwik03DSG" data-source="post: 10576080" data-attributes="member: 112680"><p>**Anyone who is more knowledgable in regards to how E85 works in an IC engine please feel free to correct me; all I can do is apply what I've learned in school. Im an undergrad cell biology major, chem minor.**</p><p></p><p></p><p>That being said, injector charts, I do not know of. However, a bigger injector is almost surely needed, just because of the extra fuel needed to run E85. </p><p></p><p>One gallon of E10 gasoline contains roughly 112,000 BTU's of energy. </p><p></p><p>1 U.S GAL of E85 contains roughly 81,800 BTU's of energy.</p><p></p><p>81,800/112,000 = roughly 73% energy capacity of E10. </p><p></p><p>Conversely, you need 27% more injector size (call it 30%) to support roughly* the same amount of power than what you had on gasoline, while having the same duty cycle as the old injector. </p><p></p><p>*(roughly because E85 allows several degrees of timing to be added to the tune, that alone adds some HP. If you were trying to merely attain the same power but on E85, the % would be less)</p><p></p><p>So theoretically, 63lb injectors x 27% more flow rating = 80lb injectors </p><p></p><p>63 x .27 = 17.01 + 63 = 80.01. </p><p></p><p>You'll more than likely need 80's.</p></blockquote><p></p>
[QUOTE="Kwik03DSG, post: 10576080, member: 112680"] **Anyone who is more knowledgable in regards to how E85 works in an IC engine please feel free to correct me; all I can do is apply what I've learned in school. Im an undergrad cell biology major, chem minor.** That being said, injector charts, I do not know of. However, a bigger injector is almost surely needed, just because of the extra fuel needed to run E85. One gallon of E10 gasoline contains roughly 112,000 BTU's of energy. 1 U.S GAL of E85 contains roughly 81,800 BTU's of energy. 81,800/112,000 = roughly 73% energy capacity of E10. Conversely, you need 27% more injector size (call it 30%) to support roughly* the same amount of power than what you had on gasoline, while having the same duty cycle as the old injector. *(roughly because E85 allows several degrees of timing to be added to the tune, that alone adds some HP. If you were trying to merely attain the same power but on E85, the % would be less) So theoretically, 63lb injectors x 27% more flow rating = 80lb injectors 63 x .27 = 17.01 + 63 = 80.01. You'll more than likely need 80's. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
calculation for fuel injector limit with e85?
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