I got the new SCT and i managed to load the strategy tune that came with (4.6L Mustang), i couldn't find the 2 customs tunes that suppose to come with it, i found only 1 custom tunes and it killed the engine after loading it and after too many ERROR messages on the tuner + O2 codes.
So i went back to stock tune and loaded the Strategy one (also 4.6L Mustang) but it has some parameters that i didn't quite understand which one to choose.

I choose those only:
-Fuel Octane: 93
-Fuel Eco: Normal
-Fuel Injectors: Stock
-Rear O2: On
-CMCV Delete: Stock
-Air Intake: JLT CIA 100
-Traction Control: Normal
-Spark :0-2000 (0 degrees)
:2000-4000 (0 degrees)
:4000-8000 (0 degrees)
Rev limit: Drive - 6300 Rpm
Rev Limit: N - 6300 Rpm
Idle Speed: - 800 Rpm

Now what i need to know is Tire Size, i have 275/35/19 tires - what tire size shall i choose on the tuner?

I also need to raise the shift points so as to maximize the full RPM range, what to choose from those parameters below?

WOT shift 1 to 2 = 0 mph
2 to 3 = 0 mph
3 to 4 = 0 mph
4 to 5 = 0 mph

Shift Press:1 to 2 = 0
2 to 3 = 0
3 to 4 = 0
4 to 5 = 0

Any suggestions please that will improve car performance?

Thank you.

 

Where did you buy the tuner from? I would say that each company is different, some may pre install the custom tunes on the handheld and some may not. Most places will send detailed instructions via email on how to load their tune. I know that the SCT tuners have different locations for pre installed tunes and 'custom' tunes that you have to scroll through the tuner to find the correction location of the custom tunes.

I would email the company you bought it from for more directions.

Good luck.

 

Now what i need to know is Tire Size, i have 275/35/19 tires - what tire size shall i choose on the tuner?

The tuner should want revolutions per mile for tire size. Your tires are 759(rounded up from 758.81), set the tuner to the closest number to this.

 

I also was wondering how much difference it makes as well and experimented with it. I believe that the values were in 1 mph increments?

WOT shift 1 to 2 = 0 mph
2 to 3 = 0 mph
3 to 4 = 0 mph I believe that these values are wrong
4 to 5 = 0 mph

Shift Press:1 to 2 = 0
2 to 3 = 0
3 to 4 = 0 I believe that these values are wrong also
4 to 5 = 0