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Old 06-05-2013, 05:14 PM   #1
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Tuner Decisions??

Just ordered a tuner and don't know whether I wana run my 89 octane performance tune with 90 octane ethanol free gas or run the 93 octane race tune with regular gas...cause I run the efree gas on the stock tune now and it makes a difference!!
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Old 06-05-2013, 05:36 PM   #2
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Run all 3 an find a setting you like best
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Old 06-05-2013, 05:45 PM   #3
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Quote:
Originally Posted by Wmcgrattan View Post
Run all 3 an find a setting you like best
That's a lot of changing fuels!!
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Old 06-06-2013, 05:07 AM   #4
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I ran 87 before tuning because it was the cheapest, and now I've got 89 street and performance tunes because it's not much more expensive ($100 more a year). My race tune is 93 octane (go big or go home) because I won't be using it all of the time, plus it'd be $100's more a year to always fill up with 93. I also find the race tune to be a bit too aggressive for DD usage.

I'm happy with my 89 performance tune (I've tested all tunes on 93 octane gas). From my understanding, DON'T run a 93 octane tune with gas rated under 93 and so on. Your engine will want to combust faster than the gas is able to... or something like that.
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Old 06-10-2013, 04:48 AM   #5
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Unfortunately for me, I have to run 93 because thats all I can get for my rationed gas...but i did notice that it runs much better on 93 and then i got a tune for it as well. Seems to burn a bit cleaner based on my exhaust tips as well, used to get quite a bit of black in there but not as much since i switched to 93.
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