I bit of a lack of progress on this ptojekt but i now finished the final zylinder desinge. Not 100% of bore just cause i want a working cylinder first and then i can start experimenting.
I also started cuttimg the ports in the linder. I can send pictures in the evening.
And i am usimg better cooling but not as good as in the 100% of bore cylinder.
Now directed wich meens. The water comes in in the back of the cylinder than it flows around it, over the exaust and im the back of the cylinder up again.