I am going to port a 50cc stock cylinder that should in the end produce somewhere between 11hp and 16hp.
I am going to cut in 3 more ports to the existing ones and try to match the new ports to the aprilia rs125 design.
And of course to get a fitting amount of blow down time area I will cut auxiliary exaust ports and raise the exaust port timing to about 178 to 184 degrees, because I still want to have a wide powerband to fit the 3 gear engine I have.
I am going to use a reed intake system now here I am starting to get problems, as I never have worked with reeds before (only with piston ported an rotary valve engines) I don't know what reed I should use.
I am thinking of a 28mm carburetor.
Should I use a malossi reed?
V force would be nice but I think they are to expensive for me.