We can get 87, but the 89 is cheaper so that's what I run. Being able to add a little more timing to utilize the octane, as well as all the reasons to get the tune that you listed, plus the size of tires I'm throwing on all led me to this site. I really like the idea of being able to throw 91 in it when I want to take it out and get it dirty, just to have a few more ponies to play with.
As far as choosing octane goes, I run Sunoco in my supercharged Mustang at the track even though it's only canned-tuned for 91 because I like the little bit of extra "cushion" it gives preventing detonation when I'm hot-lapping. Sure, I'm not using all that octane for more power and I know I could probably get better timeslips by running the fuel it's tuned for, but until I get it on a dyno this spring for a real tune, I use higher octane fuel as my crutch.
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Fri, February 6th, 2009, 10:45 AM
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