From my own experience, a DigiQ is faster than any of the 9.86:1 geared Char-Gs right up to the Micro B 2.2 motor. A 9.86:1 2.6 Char-G is pretty much on par with the Digi Q, and a 3.0 (Lucifer) motor powered G will whoop the Q once it gets reved up.
The big issue here is gearing and the motor used. Your GT-R R34 with 3.0 and the 8.25:1 gearing will be a little sluggish off the line, but there’s not a Digi Q alive that will keep up to it after the first 30cm (1′ of straight line). :smiley4: