Ford Mustang Forum banner


  1. Stock engine knocking?

    2011 - 2014 Mustang GT Tech
    So I have about 12K miles on my 5.0 (bought it at 10K), and the past few days I've noticing that unsettling sound of what sounds like engine knocking. I had this on my v6 when I had the Bama tuner, but now on this one I notice it suddely under load in 3rd and 4th gear. I have been putting in 87...
  2. Octane Numbers At The Pump In France

    2011-2014 Mustang Talk
    I'm traveling in France for a couple of weeks in a rented Ford mid sized something or other. At the pumps here in France the choices for fuel are 95 & 98 octane. Highest octane fuel I can get back home is 93. Someone I know suggested the reason is regional variations due to elevation, climate...
  3. 2013 Mustang GT - PCM Number / ProCal

    Does anyone know if there is any correlation to the "ProCal" ping issue and certain PCM numbers from 2013 GT's? I ordered the tune recently and am almost regretting it after reading the horror stories of pinging and people reverting back to stock. We have plenty of 93 octane here in Alabama...
  4. octane quetions???

    5.0L Talk
    My car is pretty much stock, is runung a higher octane at the pump really going to help me? I am in Las Vegas and at the pump here we have 85, 87 and 91... If not at what point in my build do I need to start running a higher octane??
  5. How can you tell what octane rating a tune requires?

    2005-2010 Mustang GT Tech
    I am preparing to buy a used 2006 Mustang GT. I have reason to believe it has a custom tune (K&N CAI, Flowmasters and pretty fast). The current owner bought it from a used car dealer, so the original tuner/programmer is not available. I'm worried because the current owner fills up with 87 at the...
  6. Not sure what octane is available in my country

    2005-2010 Mustang Talk
    Hello all, I live in the Middle East, in Asia but i'm not sure what octane is available over here. The car says 91+, but the fuel places here say that the octane ratings that I can choose from are either 90 or 96/97 (don't remember). Now, because i'm in the Middle East, i'm not sure what octane...
  7. How many degrees timing can you add per point of octane increase?

    2011 - 2014 Mustang GT Tech
    If you are running an SCT Tuner and a 91 octane tune from Bama (or anyone else really) and you put 93 octane (plus 2 points of octane over the tune) in the tank, how many degrees Global Timing can you add via the SCT tuner if you are at the track? How many degrees if you put 100 octane (9 points...
  8. adding octane to premium?

    4.6L Tech
    will adding an octane booster or fuel treatment to 91 premium gas hurt anything?
  9. 2007 Mustang GT and Diablo Preditor with Cold Air Intake

    2005-2010 Mustang GT Tech
    I currently drive an auto 2008 v6 and have the diablo preditor with the S&B firmshift tune and love it. My 2 questions are.. I am buying a 2007 mustang gt in 2 weeks and im not sure what CAI to get the most out of the tune. (I have steeda, K&N, S&B, AIRAID, and JLT tunes already on the...
  10. Cold Air Intake, Tune, V6

    2005-2010 V6 Mustang Tech
    Hi everyone! I have 2007 v6, and the only modification I have on my car is a dual exhaust conversion with GT takeoffs. I noticied a lot of people say that a CAI and Tune are great mods so I decided to look into it. I don't no much about them so I have a few questions. 1. Can you set the tune for...
  11. SCT X Cal 3 Tuner Questions...

    V6 Tech
    Hey does anybody here have the SCT X Cal 3 tuner? and if you do, what kind of performance gains did you see with 93 octane? I have an 01 v6 automatic w/true dual flowmaster 40's, h pipe, and CAI. Im probably gonna get 3.73 gears and t-lock installed so i figured i might as well get a tuner to go...
  12. What fuel to use???

    Classic Tech
    I just bought a 1964 and a half mustang and was wondering what kind of gas to use. It came with the original car manual which says that the car needs 93 or higher octane(premium). But i was wondering if i need a lead additive or if i could just run the car off unleaded gas Thanks:shiny: P.S...
  13. compression and octane?

    Classic Tech
    i am sure i set my 302 to either 10.5:1 or 11:1 what octane should i use can i get by with 93 from a pump or do i have to add lead? i did some research and saw that i should be useing 104 octane but i have no idea what they mean with all this RON and PON stuff can anyone tell me if i should go...