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Old 12-03-2013, 07:09 PM   #1
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Maximize performance aside from expensive mods.

Aside from expensive mods, what can I do to maximize performance on my mustang? I am already using premium fuel, I have heard air filters make a difference, spark plugs? Appreciate any intel.
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Old 12-03-2013, 08:03 PM   #2
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Make sure your A/F ratio is good, running rich you are just wasting fuel, and mustangs generally run slightly rich from the factory.
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Old 12-03-2013, 08:10 PM   #3
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What does "running rich" mean?
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Old 12-03-2013, 11:44 PM   #4
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Running rich means your car is using more fuel than needed
Running lean means you are using less fuel than needed.

Your car needs to maintain a certain ratio.

---------- Post added at 09:44 PM ---------- Previous post was at 09:43 PM ----------

Both are bad for the engine, but running lean is probably worse, thats why these cars run a little rich from the factory.
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Old 12-04-2013, 12:52 AM   #5
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Quote:
Originally Posted by Soccerluvr4 View Post
Make sure your A/F ratio is good, running rich you are just wasting fuel, and mustangs generally run slightly rich from the factory.
Thats the whole point of electronic fuel injection. Electronic fuel injection was developed to have input data turn into output data, these two forms of data help the computer achieve a stoichiometric air fuel ratio. Basically what this means is you have 14.7 parts fuel to 1 part air, the best optimal conditions for a gas engine to combust.

Any abnormal data from either of your input and or output sensors will cause this ratio to change in your engine. Most of the time these changes will emit the CEL, however if the data isn't "abnormal enough" it will not. Also, whenever your CEL is on your cars engine is in a default called "limp mode". When in limp mode your vehicle will richen up the fuel a great deal to save you from burning up your motor. Double edged blade there as well with leaving CEL on. Run rich for too long and foul out plugs, kill o2 sensors cat converters, ect.
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Old 12-04-2013, 06:22 AM   #6
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[QUOTE="20143.7LV6;1884237"]Aside from expensive mods, what can I do to maximize performance on my mustang? I am already using premium fuel, I have heard air filters make a difference, spark plugs? Appreciate any intel.[/QUOTE
Tune would be best upgrade.
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Old 12-04-2013, 08:53 AM   #7
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A tune and CAI would be good, if you had to pick one first go with a tune, since some other less expensive mods after that will require one anyway.

On a side note, did you put a 5.0 badge on your V6? Just going by your avatar.
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Old 12-04-2013, 06:41 PM   #8
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Thx...no, I upgraded. After 6-mos with a V6 I decided I needed the GT.
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