Weighing up crank(cases)

Brian, when comparing the 66e with the CW 701 based cranks it looks like some of the extra weight is not only in the flywheel/counter weight but also in the bearings. Since your able to run such big strokes and keep the mass of the flywheels down even though your running big pistons (more mass) and longer rods (mass again) why can't a 66e be pared down in f/w weight a little. Have you tried this or know of any. When I had my 66e crank set up for my mod blaster I asked to have it balanced and was told its underweighted already with a 80mm wiseco and I turn it 8000+ rpm with no issues. You run much heavier pistons and I haven't heard of a problem yet. What's your take on ruducing mass on the 66e crank?
 

wsuwrhr

Purveyor of the Biggest Brapp
We haven't messed with 66e stuff much. A triple once in a awhile but rarely twins sir, sorry.

That motor isn't really pared with freestyle or racing.

I wouldn't want to give you any advice I wasn't dead nuts on, I would be lying if I even had to guess.

Brian



Brian, when comparing the 66e with the CW 701 based cranks it looks like some of the extra weight is not only in the flywheel/counter weight but also in the bearings. Since your able to run such big strokes and keep the mass of the flywheels down even though your running big pistons (more mass) and longer rods (mass again) why can't a 66e be pared down in f/w weight a little. Have you tried this or know of any. When I had my 66e crank set up for my mod blaster I asked to have it balanced and was told its underweighted already with a 80mm wiseco and I turn it 8000+ rpm with no issues. You run much heavier pistons and I haven't heard of a problem yet. What's your take on ruducing mass on the 66e crank?
 
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dfw
If you are making 150HP then stop messing with the engine and start working on a pump that can convert it to thrust. A 144 will not hold that much power in a slow moving standup because the inlet pressure drops too low.
 
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