I am wondering if someone have any link or info about engine tuning. With pictures and explanations. Not engine adjustments.. i mean when you change port timings, some modifications to crankshaft etc..
i am really intrested how to do this.. whats is possible to do and not to do.
i have an old Mega SX-21 Evo1 engine that i think can be improved like 1-2% :P
the crankshaft have engraved M.D.S?? what does it stands for?
i attach some pictures with crankshaft and sleeve.
i dont know what angles of the parts that can help