5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

91 octane and 18 degrees really worth it???

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Old 05-25-2006, 02:38 AM
  #31  
89 mustang
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Default RE: 91 octane and 18 degrees really worth it???

ok lets change the subject, so I have a supper chip that advances the timing and messes whit the air/fuel so I just had one question, what should I set my timing at if I'am using this chip

[IMG]local://upfiles/26964/33A4376A5CD146D096678B27FA927383.jpg[/IMG]
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Old 05-25-2006, 02:52 AM
  #32  
92hatchLX
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Default RE: 91 octane and 18 degrees really worth it???

I do enjoy a good meal of meat and potatoes.
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Old 05-25-2006, 02:53 AM
  #33  
grabbem88
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Default RE: 91 octane and 18 degrees really worth it???

^^^stock i would guess cuz that's what the computer chip is based off of??....eehehehheeeheeheehheheeeehehheheehheheehee h is the most annoying sound..........now slap yourself if you actually did it out loud...
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Old 05-25-2006, 02:56 AM
  #34  
92hatchLX
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Default RE: 91 octane and 18 degrees really worth it???

That hurt, don't ever make me do that again.
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Old 05-25-2006, 02:59 AM
  #35  
94Cobrakid16
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Default RE: 91 octane and 18 degrees really worth it???

so would going from stock to 14* be a bad idea with high milage?
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Old 05-25-2006, 03:28 AM
  #36  
JBradley500
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Default RE: 91 octane and 18 degrees really worth it???

highway star...ohh yeah
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Old 05-25-2006, 05:53 PM
  #37  
WLingle92lx
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Default RE: 91 octane and 18 degrees really worth it???

Ive only been able get 15* out of my car with 93 octane. Anything past 15* and you won't see much of a gain, Mabey 3-5 hp.
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