RE: rcmk k30
Iv got the K30 RZ in my F1
Had some issues to start with but this was because of running the K30 topkit on standard evo bottom end and lack of experience LOL
so did a rebuild added the 1mm stroker thats normally used in the K30 had to smooth out the transfer ramps to improve the flow from crankcase to jug
Also added a bigbore carb and port match the jug with the big bore alloy ISO block
and runs well on 7015/3 prop iv got a 7016 /3 to try soon also just had custom pipe built with 1" manifold hoping to run in the next few days
but this is how it run before with zippkits pipe and 7/8 manifold
[youtube]http://www.youtube.com/watch?v=wgBhiieJF3w[/youtube]
Im currently looking at getting another K30 or 2 but the side exhausts this time