We´ve widened the 3 cylinder foot window, widened the boost port channel (third overflow valve opposite the outlet), and bored open the middle port. We´ve also widened the side and top with the main inflow window pushed up and at the same time set diagonal 1 to 2 degrees. It´s amazing how much performance can be achieved with a complete modification. Especially productive is how much the outlet modification turns up the revolutions to a maximum performance of about 300 1/min. The complete rpm scala shows a significant increase, as well as improved torque. Depend on your motor to run smoother. You can expect an improvement of 2 to 4 HP!!!!
Neuste Evolutionstufe!
Höhere Kolbenkühlung durch vergrößertes,
kleines Kolbenfenster. 3. Überstrom kaum
verändert.
Go to this product on www.sip-scootershop.com.
