[Power Hungry]

Originally Posted by cajunboy2208

Hope these resize automatically...
Best time was a 15.65 and that was with me editing my already custom tune...

I do want to point out that you can have a significant change in top speed just from a small change in engine temperature. When I ran our 6.0L at the track, I saw anywhere from 93 to 97.6 MPH as the track temp, engine temp, and even the ambient air temp changed.

In looking at your E/T's, they are actually very comparable, with the modified custom tune run having a slightly better reaction time and 60' time (ie. a better launch) and accounting for most of the difference between the modified and unmodified 87 custom tune runs.

What's interesting is your R/T was .022 different, at 60' this changes to .055 difference, and then by 330' this dropped down to .031. This would indicate possibly a little wheelspin coming off the line in the Custom Only run, which may also help account for the lower 1/4 mile E/T and MPH.

Originally Posted by cajunboy2208

The Gryphon said I would run 15.1s, well, it lied. lol. A good .5-.7 secs off my actual runs.

We've told everyone for years that the 1/4 mile testing on the Gryphon/Evolution is not always 100% accurate. It does the best that can based on calculated acceleration rates and distance traveled. Since there is no way to actually measure the distance traveled, if it is showing a lower ET then it's probably coming up a little short on the calculated distance. We generally use the built-in measurements (1/4 mile and 0-60) for a general comparison between tunes. However, the drag strip is the final word in your actual 1/4 mile times.

Overall, nice runs. Mid 15's is about what we'd expect to see from a solid running F-150. Glad you could share those with us.