WOT gear change...0-60 times....

[Mark_123]

So I've played around a little with the stock tunes on the Gryphon. At WOT, when the truck shifts from first to second, there is a stutter (delay, not really sure what to call it). The RPM's hit the rev limiter I'm guessing, then there is a pause and the RPM's fall slightly, then the RPM's hit the limiter again before shifting to second gear. Remember, these are the canned tunes. I'm guessing this will be resolved with the custom tunes. Anyone else experience this?

So I haven't really made an effort go to a perfectly level area to do a 0-60 time yet, but I did so on an on-ramp merging onto the highway. There was a slight decline, so these numbers I'm sure aren't exactly accurate since gravity probably gave me a little assistance. Anyway, the truck is a 2007 F-150 4x4 SCrew with stock tunes (87 tow) from Gryphon, stock 20inch wheels with the stock Pirelli's, AEM dryflow filter, and Magnaflow 5x8x18 muffler replacing the stock muffler. 0-60.1 mph was 6.78 seconds. Again, I was going slightly down hill on an on-ramp merging onto the highway when I checked this. I still thought this was very good and I'm extremely satisfied!!! I can hardly wait to get the custom tunes. The custom tunes will hopefully resolve the stutter at 1-2 gear change and I'll check a true 0-60 on perfectly level ground. I'll get some 1/4 mile numbers then as well.

VERY SATISFIED CUSTOMER