Thats my point though, new bearings in a rotary really aren't needed unless they're trash. New bearings are more likely to spin and cause damage then old (but still useable) bearings for a number of reasons. One being clearances are so so so super important on new bearing engines its not even funny. The only new bearing engine I've had personal experience with had damaged bearings when I tore it down after blowing it up.........................every original bearing (that was useable) engine I've had has been fine however.
You should also know, if you're using an RX-8 e-shaft that there's a small (half thou?) taper on the front main. If you don't use an RX-8 bearing there you'll spin those fancy race bitches off in a hurry.
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