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I think what Dan (who started this thread) did with his build is a good compromise.I'm not sure how much difference it would make, cuz I have not done it, but a lighter Molnar crank balanced for whatever one thinks is right, the stock rods and a set of JSM medium compression stock rod pistons would make for a lot less rotating and reciprocating mass. The stock rods are lighter weight than the popular steel Carrillo rods and the JSM pistons are lighter weight than the stock pistons. All that and a belt clutch. I think the lighter parts might make for a spunky little 850.BTW after watching that Comstock video on dynamic crank balancing, I definitely won't be pushing toward 8000 RPM anymore with my 750. That crank spinning at 1200 RPM looked scary enough. lol
I think what Dan (who started this thread) did with his build is a good compromise.
I'm not sure how much difference it would make, cuz I have not done it, but a lighter Molnar crank balanced for whatever one thinks is right, the stock rods and a set of JSM medium compression stock rod pistons would make for a lot less rotating and reciprocating mass. The stock rods are lighter weight than the popular steel Carrillo rods and the JSM pistons are lighter weight than the stock pistons. All that and a belt clutch. I think the lighter parts might make for a spunky little 850.
BTW after watching that Comstock video on dynamic crank balancing, I definitely won't be pushing toward 8000 RPM anymore with my 750. That crank spinning at 1200 RPM looked scary enough. lol
