Field Report: 1200HP vs R34 GT-R's Active Diff Control.

This 1200HP RB26 powered R34 GT-R Skyline is always one of our favourites at the World Time Attack Challenge. Want to learn how to EFI tune? Start with some free lessons right here: hpcdmy.co/tuneb It’s easy to talk about the likes of this 1200HP RB26 power plant and just assume it’s going to be quick, but in reality, there is so much more to putting in a fast lap time than a few high power dyno runs and Mark McCoy of MoTeC is here to help explain where some drivability and pace is recovere...