|
Post by KSR Moto on Mar 8, 2020 6:35:48 GMT -5
I am about to install 150cc BBK on my 125cc scooter, which head shoud I use for best performance 125cc or 150cc? I have both of them and the 150cc head has larger valves but 125cc may improve compression? I know that my gy6 80cc(47mm) works better with original 50cc head rather than 80cc head but both of those use same size valves..
|
|
|
Post by 2stroked on Mar 8, 2020 19:20:30 GMT -5
Well now. What cam durations/lift? What piston?
There's more at play than valve size and chamber volume. Domed piston with shorter duration and lift may benefit more from the larger valves. And vise versa...
|
|