Tuning Differences Between Expedition & F150

[iowacarpenter]

Hi everyone!

I have an idle question that's been on my mind for a while. If this is the wrong section for this, please let me know and move it to where it belongs.

I have a 2016 Expedition EL SSV with a 3.73 axle, and a 2015 F150 CC/LB XLT with a 3.55 axle. The F150 always feels snappier off the line, and feels like it tows better. Fuel economy is similar between the two trucks, 15-19 mpg depending on circumstances. Both trucks start and run great.

I'm not quite sure on their weights, but they seem like they would be similar.

My question is... is there a difference between the two vehicles' ECU/TCU tuning? Or is this just all in my head and due to subtle differences in weight/drag/gear ratios, etc.?

Thanks for indulging my curiosity!

EDIT: Both have 3.5L Ecoboost engines

 

[JasonH]

Might be weight. The Expedition is going to be heavier. But you can use an OBD dongle to get peak boost numbers and timing as well. Not sure if there's a way to get torque demand from accelerator input. Try emailing one of the reputable tuners, MPT, Unleashed, ZFG, etc. They could probably answer very quickly.