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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
The Tune by SVC
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<blockquote data-quote="WRCRaptor" data-source="post: 801915" data-attributes="member: 10153"><p>If you adjust the global spark to -4 you can run any octane you want 87 or higher -2 is 89 or higher 0 is 91 up. If you run lower octane then the global spark setting for the set octane levels you will get engine knock and that is not good. So yes you can set it and forget it if global spark is set to -4 but to get the full potential of higher octane I am adjusting that global spark. </p><p></p><p>I have run a tank of each octane with the spark set at -4 and it runs well but I did not notice much difference with each octane. Now I am running 92 octane at the 0 spark setting and the truck has improved performance and just like the stock tune adjustes for each octane it just runs better. Smother idol and highway cruising at all octane levels. The performance difference is less noticeable with each spark and octane change because the rest of the tune remains the same at each setting but it is on par with my 5 Star 91 octane at the 0 spark setting, it is just smother less frantic. </p><p></p><p>This tune just meets my style better on a day to day and rally and run bases, I will let SVC coment on their feelings on technical and safety side of their tune.</p></blockquote><p></p>
[QUOTE="WRCRaptor, post: 801915, member: 10153"] If you adjust the global spark to -4 you can run any octane you want 87 or higher -2 is 89 or higher 0 is 91 up. If you run lower octane then the global spark setting for the set octane levels you will get engine knock and that is not good. So yes you can set it and forget it if global spark is set to -4 but to get the full potential of higher octane I am adjusting that global spark. I have run a tank of each octane with the spark set at -4 and it runs well but I did not notice much difference with each octane. Now I am running 92 octane at the 0 spark setting and the truck has improved performance and just like the stock tune adjustes for each octane it just runs better. Smother idol and highway cruising at all octane levels. The performance difference is less noticeable with each spark and octane change because the rest of the tune remains the same at each setting but it is on par with my 5 Star 91 octane at the 0 spark setting, it is just smother less frantic. This tune just meets my style better on a day to day and rally and run bases, I will let SVC coment on their feelings on technical and safety side of their tune. [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
The Tune by SVC
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