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Each rod journal is direct pressure fed by dual cross drilled oil passages in adjacent main journals. This is superior to the standard outside inward oil feed, which leaves the centermost rod journals (numbers 5 and 2) with insufficient lubrication during extreme engine RPMs.

The counterweight mass for all three 180 degree sections is perfectly offset, which, in concert provide a greater level of counterbalance precision. When combined with the process of dynamic balancing, the result is smooth engine operation at all RPM levels.

Surface finish may be one of the most critical factors in bearing life. Friction builds heat, and heat is a primary cause of bearing failure. Micropolishing brings a typically ground journal to a significantly higher level of surface finish, in order to reduce rotational friction.

Crankshafts are fully shot peened for extra stress resistance and prevention of surface crack formation. Shot peening, a process by which the lifespan of high performance internal automotive parts has been prolonged substantially, has over the years been incorporated as a highly valued procedure into numerous applications, particularly in the aerospace industry. Tests have shown that shot peening can double the cycle lifespan of highly stressed metal components.

crankside1200

crankdiag1200

Porsche Crankshaft

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Please be Aware That This May Not Work for Older Computers.

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