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Cobra Forums
2013-14 Shelby GT500
(New) Motec ECU 150 PNP (S197 GT500 Mustang)
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<blockquote data-quote="03cobra#2" data-source="post: 16968869" data-attributes="member: 52057"><p>I don't run a Motec but I have thought about the same thing you are talking about with my MS3. I'll never run 91 in my car...only 93, and pump E85. So I dial in one set of tables for 93 (being very conservative with spark just in-case 91 does make it into the tank) and one set of tables for E85. Then I can set the flex blending tables to whatever I choose. Currently have my 93 octane spark table to run strickly off that table at E30 and below to be safe, and at E80 spark is running completely on my E85 table. I have my fuel blending setup slightly different so that if I throw in Ignite 98 or something crazy I won't run lean from the normal pump E85 (sensor reads E80)I throw in. I've really been digging into flex tuning the past couple months. My point is even though the ECU can't determine octane rating you can still set the tables and blending to work around that and be safe. </p><p></p><p>Edited</p></blockquote><p></p>
[QUOTE="03cobra#2, post: 16968869, member: 52057"] I don't run a Motec but I have thought about the same thing you are talking about with my MS3. I'll never run 91 in my car...only 93, and pump E85. So I dial in one set of tables for 93 (being very conservative with spark just in-case 91 does make it into the tank) and one set of tables for E85. Then I can set the flex blending tables to whatever I choose. Currently have my 93 octane spark table to run strickly off that table at E30 and below to be safe, and at E80 spark is running completely on my E85 table. I have my fuel blending setup slightly different so that if I throw in Ignite 98 or something crazy I won't run lean from the normal pump E85 (sensor reads E80)I throw in. I've really been digging into flex tuning the past couple months. My point is even though the ECU can't determine octane rating you can still set the tables and blending to work around that and be safe. Edited [/QUOTE]
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2013-14 Shelby GT500
(New) Motec ECU 150 PNP (S197 GT500 Mustang)
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