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School me on E85
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<blockquote data-quote="GodStang" data-source="post: 9971269" data-attributes="member: 11142"><p>It's not just Black2003Cobra's post. When I first was doing research on E85 and what octane it was about a year ago many many government tests and sites and other lab sites and College research papers all had R+M/2 as around 95 or 96 octane. It has Research Octane as ~106. So this is not the first time or only time that I have heard/seen this. I just pulled up about 10 sites that all had E85 octane in the R+M/2 = ~96.</p><p></p><p>So now the question is when comparing it to 87, 89, 91, 93, 100, 110 octane are those the Research octane numbers or is that the (R+M/2) number. If you are comparing Research to Research octane than that is fine and a correct comparison but if you are comparing E85 Research octane to say 93 Motor octane than that comparison is not the same. I am going to start an octane thread on Mod Fods.</p><p></p><p>Also I am not the only one having Returnless fuel system problems. Also my opinion does not come from the fact I am having problems. Its the fact that you can flow more fuel for cheaper, you have less electronics to trouble shoot, you can make more power on smaller injectors which in the end can be a lot cheaper. I have been told by every tuner I have taken my car to that it needs to be converted to return style to make ease of tuning better. Again just my opinion from being there and spending the thousands of dollars on fuel systems that need to be upgraded or replaced.</p></blockquote><p></p>
[QUOTE="GodStang, post: 9971269, member: 11142"] It's not just Black2003Cobra's post. When I first was doing research on E85 and what octane it was about a year ago many many government tests and sites and other lab sites and College research papers all had R+M/2 as around 95 or 96 octane. It has Research Octane as ~106. So this is not the first time or only time that I have heard/seen this. I just pulled up about 10 sites that all had E85 octane in the R+M/2 = ~96. So now the question is when comparing it to 87, 89, 91, 93, 100, 110 octane are those the Research octane numbers or is that the (R+M/2) number. If you are comparing Research to Research octane than that is fine and a correct comparison but if you are comparing E85 Research octane to say 93 Motor octane than that comparison is not the same. I am going to start an octane thread on Mod Fods. Also I am not the only one having Returnless fuel system problems. Also my opinion does not come from the fact I am having problems. Its the fact that you can flow more fuel for cheaper, you have less electronics to trouble shoot, you can make more power on smaller injectors which in the end can be a lot cheaper. I have been told by every tuner I have taken my car to that it needs to be converted to return style to make ease of tuning better. Again just my opinion from being there and spending the thousands of dollars on fuel systems that need to be upgraded or replaced. [/QUOTE]
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