Originally Posted by
vadn1
I have the VZ-R engine modified by Uriah M, and he has elongated the rear portion of the crank just like you are saying. The Next time I have the engine apart I will take a picture of it and show you. I wraped a towel around the cooling head to keep the engine temp up, but yes it is still very tight with the added shim and approx 1/2 gallon of fuel through it. I use a heat gun to warm up the engine everytime and to reduce stress on the Rod.
good to know im on the right track then. let me know how the murnan mods go. i see so much potential from this engine if it goes good std.
i think its a great idea to channel the fuel from inside the crank, its a fresh burst of fuel and oil straight from the carb, no matter where the piston position is. but a failsafe option is to run a rod with the oil hole as well.