Since there is debate as to who makes the best tune, lets post hard data here and let that decide.

Post your Dyno charts with as much info as you can, including but not limited to:

Model Year/Style/Miles
Engine Type
Weather Conditions
Brand of Dyno
Wheel/Tire Size/Make
Fuel Grade/Brand
Gear Ratio
4x4 / 4x2
Any and all performance mods

and of course, what tune you're running.

Remember, we're not just talking about peak HP/TQ, but sure to examine the entire graph.

- NCSU

 

I'll start

'05 FX4, extended cab, approx 20k miles at time of dyno.
5.4L
Weather listed on Chart 1, for chart two, temp was approx 50 degrees.
DynoJet
275/65/18 BFG's on Stock FX4 wheels
Shell 93 Octane
3.73 LS
4x4
Running 3.25" AirForceOne intake, true dual exhaust with x-pipe into 2 SISO Flowmaster 40's.
Performance 93 Octane Troyer tune.

Original Tune


Revised tune after dyno and datalogging


- NCSU