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predator 670

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  1. tonyalto1014

    740, Big bore 670 Predator HP testing

    Starting a different thread here for tests on the 740cc version of the small block 670 Predator. Crankcase external dimesions are the same as the 670. The flywheel has the same taper and ring gear as the 670, but has an advanced version of charging system with a full stator and 12 magnets...
  2. tonyalto1014

    Harbor Freight Predator 670 V-Twin Horsepower tests

    I’m slowly beginning some viability testing on an inexpensive, plain bearing industrial engine, for use as a ‘direct drive’ replacement/upgrade for the venerable Rotax 277. Direct drive testing for three reasons. One is expense. Two is weight. Three is the limitations of a plain bearing engine...
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