2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

changing custom tune ?

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Old Aug 17, 2011 | 11:21 AM
  #11  
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Franchi
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Joined: Jul 2010
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From: Ohio
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Yep! The looks I get sitting in at a stop light are always interesting, between the big *** 4 inch cowl hood and the lope of the cams, always gets a reaction. A blower would have been faster but I honestly enjoy driving the 06 GT at 348 rwhp more then I did with my old 99 GT with a blower and 120 horses more.
Old Aug 22, 2011 | 09:22 AM
  #12  
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roblee121
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Joined: May 2011
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From: Texas
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ok here is what i came up with. i loaded the 89 tune on my car. i thought i had the 87 but i was wrong. i put it on cruise at 108mph and got about 18.5-18.9 miles a gallon. not bad. im sure i could have easily achieved 22mph if i would have been going the speed limit. but who does that?
Old Aug 22, 2011 | 01:02 PM
  #13  
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Southern Stang 722
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Joined: Jul 2009
Posts: 200
From: Florida
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Man, I guess I'm not alone in the mpg. Just got 14 on my last tank. I went on a trip to NC to see my buddy graduate BMT. Ran 87 tune for about two tanks, and couldn't take it anymore. The milage difference wasn't enough to offset the power difference for me. I run my 93 tune all the time, unless i'm out in BFE and can't get it. Now with a bottle to drink from coming I'm not going to be able to keep my foot out of it even more haha.
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