Traction and Acceleration
Very interesting material Tim. Thanks for taking the time to share with us. And thanks for participating in this forum, it's great to see the discussion.
I have a question about traction and acceleration in two-stroke motors. As I understand it, the traction advantage of the four-stroke single is largely due to the power driving the rear wheel in pulses. The additional time gap between power strokes in a four cycle engine cause it to gain additional traction by acting somewhat like anti-lock brakes (in reverse).
Delivering the power in pulses is the reason for the 'big bang' firing order on Yamaha's new R1 sport bike. Aprilia's new twin-cylinder 450 class motocross bike, the MXV 450, fires both cylinders simultaneously for the same reason.
Say we apply a traction control system to both a bike equipped with a two-stroke motor (as you have suggested) and a bike with a four-stroke motor. Wouldn't the four stroke still have a traction advantage due to the power pulsing?