I believe that would be taking things in the opposite direction of where you want to be.Hello everyone, dont know if someone has already asked but, is it important how much clearance is between crankshaft counterweights and crankcase walls?
I meant, what would happen if i made crankcase walls thinner, thus increasing volume of crankcase.. (+ all other port works)
Would that cause anything unwanted?
I wouldn’t get the case too thin, if you keep about .020” clearance on the big end of the rod then you should end up with about .046” clearance on the weightsHello everyone, dont know if someone has already asked but, is it important how much clearance is between crankshaft counterweights and crankcase walls?
I meant, what would happen if i made crankcase walls thinner, thus increasing volume of crankcase.. (+ all other port works)
Would that cause anything unwanted?
I was told to keep .04” on weights to minimize windage loss.Hello everyone, dont know if someone has already asked but, is it important how much clearance is between crankshaft counterweights and crankcase walls?
I meant, what would happen if i made crankcase walls thinner, thus increasing volume of crankcase.. (+ all other port works)
Would that cause anything unwanted?
Just gonna leave this lil slab of 58mm goodness right here.
105.6cc come on.View attachment 274195View attachment 274196
Just gonna leave this lil slab of 58mm goodness right here.
105.6cc come on.View attachment 274195View attachment 274196
A 395 piston and pin will fit in a 660 crank small end with a 395 pin bearing. That much I can tell you, I’ve done an 066 56mm big bore with a 395 slug. They are quite a bit heavier than an 066 slug though.Any side by side with a 395xp piston?
Looking for a 12mm pin piston and a 661 is a 12mm.
A 395 piston and pin will fit in a 660 crank small end with a 395 pin bearing. That much I can tell you, I’ve done an 066 56mm big bore with a 395 slug. They are quite a bit heavier than an 066 slug though.
Yes, pretty sure it got the lathe on the skirts treatment.On the stroked 661, the 395 slug has to be shortened a bunch.....then can be put on a hell of a diet.