Let's start here:
http://www.nrhsperformance.com/tech_power.shtml
That is to get one area cleared out - all dyno's read flywheel torque, by measuring whp. However, in the dyno sticky in the engine section, all the dyno's don't work the same way. Japan is using a dynapack, and the dynapack works by bolting up to the hubs and simulating load. Due to that, they read, on average, 9-10% higher than a Mustang dyno.
And because it's reading hub, it's calculating the figures differently in the software. For instance, it's seeing 800ft/lb's of torque at the hub in the particular gear selected at the particular rpm. Then it's calculating back from that.
The particular issue is that the "compressed" dyno chart it's making by forcing the torque chart over the whp (calculation) chart is changing the curves. I'll get them to use the split view. But it's still not going to look like a dyno chart from the roller dynos.
And in regards to testing the kit, we tested it for 8 weeks in Japan before we did the American road test and tune. And the drive to SEMA takes 2 days down, 2 days back. We weren't driving at 100mph both ways (talk about math...) and we were reflashing (frequently) which involved a lot of stops.