General track key question

[byronj]

I have my track key installed and its tuned for the stock size tires. My question is can I have my local dealer retune it for the 18's I have or do I need to do a complete download of a new track key?

Thanks

 

[Fiddler49]

Tire size change doesn't require a whole new download, but I'm not sure 18's are an option?

 

[byronj]

Tire size change doesn't require a whole new download, but I'm not sure 18's are an option?

Thats all i needed to know. Thanks

 

[PeteInCT]

Thats all i needed to know. Thanks

They can set it for 18" wheels. I had them do it for me when they did my relearn.

 

[dabossinnne]

Yep. There is a specific field in the PCM Trackey calibration menu for tire diameter, which a dealer can access and change to the actual tire diameter you are running (stock tire dia is 26.7"). No need to reflash TK. Not sure if it covers different front/rear diameters, or only accepts a single value.

 

[Grant 302]

I was looking over the tech's shoulder during the install and I saw a dropdown box with lots of tire sizes, but don't recall there being a tire diameter field like on a ProCal.

Either way, you don't need to do it, but your odometer and speedo will be a little off.

 

[Boss1601]

Ford answer is at the top of page 11

http://www.fordracingparts.com/trackey/include/TracKey_Dealer_Technician_Instructions_V2.1.pdf

 

[seca954]

Ford answer is at the top of page 11

http://www.fordracingparts.com/trackey/include/TracKey_Dealer_Technician_Instructions_V2.1.pdf

That's great info. It's a shame the car's owner can't make those adjustments with out taking the car to a dealer. I'd love put 100 octane in at the track and tell the computer that it has 100 octane. I use 28" tire at the drags, but don't drive them daily. There again, I wish I could make that small adjutment with out taking it to the dealer.