Although they say this model year can't be tuned (yet), at International Dyno Authority, we were eager to take on the challenge! We were tasked with tuning the 2023 Ford F150 Tremor with the 3.5L Ecoboost to achieve two main goals: a) improve the power curve and b) resolve the annoyingly inconsistent transmission shifting that plagues all Ford 10-speed trucks.

This F150 was bone stock except for a cold-air intake. The only modification we were to make to achieve these goals was to build a custom tune on the dyno.

As usual, we began with a series of baseline passes to assess stock performance and identify areas for improvement. Tremors make good power, and this one didn't dissapoint with 382 lbs-ft of peak torque and 338 peak horsepower at the wheels. Once converted, this wHP perfectly matched Ford's crank horsepower spec of 389.

After adjusting the factory air and fueling parameters, the first tuning adjustments resulted in impressive gains of 131 lbs-ft of torque and 96 HP at the wheels!

Our tuner, Wally, spent another hour refining the tune by adjusting the cam and ignition timing; the final results came in at 511 lbs-ft of Tq and 453 wHP. That's an overall improvement in the power curve of 34%. Converted to crank Horsepower, this exceeds Ford's factory specs by 132 bHP!

And much to his satisfaction, our customer reports that his 10-speed now shifts smoothly, with the transmission no longer hunting and pecking for gears!

Just another day at the office for the gang at International Dyno Authority.

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0:00 introduction
0:37 baseline passes
0:54 baseline results
1:50 first tuning pass & results
2:45 refining the tune
3:02 results & conclusion

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