Originally Posted by
BigC2007
I was under the assumption that 9 ports produced a little more RPM's then a 7 port. Looking at Novarossi's legend 9ON and legend 7ON the 9 port is putting out 400 more RPM's which is not much but could come into play.
So if there is no real advantage why even make a 9 port motor ?
First of all, do not rely on the written specs, mostly they are made out of nothing. And because Novarossi is producing several engines from cheap up to expensive they would never alow a cheaper motor running faster (in real and on specs). As I have mentioned several times that I have made 5 port engines run as fast as many top range models by just changing some timings. Timings is making the engine, not the amount of ports.