"Bogging" in first gear
Read this thread. Mine was doing the same thing (ie throttle lag in 1st gear). I just added the 34 row Z1 Motorsports cooler (and deleted the factory cooler). Eliminated ~80% of the bogging problem, its still there but greatly diminished. Next step will be to add the UpRev tune (with cooling fan tune).
Its an ECU programming issue. Apparently Nissan hot weather tests near the Arctic circle...
