View Single Post
      10-04-2011, 11:48 AM   #12
Kevin_russian
Private
Kevin_russian's Avatar
5
Rep
66
Posts

Drives: 2011 bmw 135i
Join Date: Jul 2010
Location: Toronto, ontario

iTrader: (0)

I have noticed the same thing with the jb3 and jb4... If you select stock map (ie disable the tune) it will go away.... With the tune on, It feels more like the powertrain is struggling to transfer power to the wheels... I would even describe it like a clutch struggling to transfer power.... Since the power down at lower rpm in higher gear is far greater than on a stock fuel map.... Might be it....
Appreciate 0