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SVT Shelby GT500
New GT500 owner - Any potential issues running 95 octane mix on a 93 tune?
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<blockquote data-quote="lfgt" data-source="post: 16284025" data-attributes="member: 196111"><p>I figured a stoich of around 14.3 to 14.4 with this mix since the 91 used has no ethanol. Making it run on the rich side. The breakdown for 10 gallons of 95 is 5.6 gallons of 91 and 4.4 gallons of 100 using a octane calculator. Close to a 50/50 mix which brings total ethanol down to just under 5%.</p><p></p><p></p><p></p><p>I wish they would. The O2's are not wide-bands for 2007-2009 (I think 2010 also). I was told their only purpose is to make sure the cats are functioning. Since I do not have cats and there is no check engine light they must be turned off in the tune. </p><p></p><p></p><p></p><p>Eventually I will get a tune specifically for this mix. The 95 is a sweet option except for the price $6.25/gal</p></blockquote><p></p>
[QUOTE="lfgt, post: 16284025, member: 196111"] I figured a stoich of around 14.3 to 14.4 with this mix since the 91 used has no ethanol. Making it run on the rich side. The breakdown for 10 gallons of 95 is 5.6 gallons of 91 and 4.4 gallons of 100 using a octane calculator. Close to a 50/50 mix which brings total ethanol down to just under 5%. I wish they would. The O2's are not wide-bands for 2007-2009 (I think 2010 also). I was told their only purpose is to make sure the cats are functioning. Since I do not have cats and there is no check engine light they must be turned off in the tune. Eventually I will get a tune specifically for this mix. The 95 is a sweet option except for the price $6.25/gal [/QUOTE]
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New GT500 owner - Any potential issues running 95 octane mix on a 93 tune?
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