Adrian,

bore 24mm
stroke 22mm
total 100ccm

cylinder angle 72°
valve angle 60°


piston and rod are very light (12 gramm / 7 gramm)


i think 12.000 rpm are possible :-)

the engine should look like a formula one engine :-)

your injection sounds interesting - but such small valves ... oh my dear ...

next month i will order the parts for 5 or 10 CDIs - depending on the next inputs from here.
optical pickup or hall also ...

the distributors place is back side of the heads and connected to the camscraft



Frank