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Originally Posted by Jake Raby
The engine was never over revved.. It had no signs of any over rev in the valve train and the remainder of the engine looked great inside.
The driver just heard a large bang and then a rattle- He thought the engine snapped a rod in half and so did I until my initial inspection before tear down.
I have never seen a crank snap in any engine from an over rev, the first thing that sees over rev damage is valvetrain components.
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+1! The limiting factor in engine revs has always been the reciprocating gear - Valvetrain, Rods/Pistons and ancillaries... never the rotational components!
Pressed Metal technology is 'better' from the standpoint of 'controlling' the mfg. variables and cost... but ALWAYS at the expense of reliability/durability.
Just another example of Porsche's increasing arrogance - spend $50k+ on a car... get a pressed metal crankshaft... beautiful!
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