Quote:
Originally Posted by mikedsilva
This crankshaft I have from a 3.0SC, measures perfect..
HOWEVER!
Some of the main journals appear to have suffered some type of delamination. Who knows how long it ran before it got to me, but yea, it was a mess.
So the question is, does this crankshaft have any future apart from a large doorstop?
Can it be reground and use 0.25mm larger main bearings to suit a stock 3.0 case?
Or can it be ground even further and used in an older 2.2 or 2.4 case? I'm not sure if that's a dumb question since I don't play with magnesium cases and am not familiar with journal sizes or cylinder spacing.
Someone approached me about creating something for a magnesium engine, and I figured, why not ask the experts who know what will fit and what won't? Maybe this crank might come in handy?
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Grind it .010/.010, pull the plugs and have it plasma nitrided.Threaded crank plugs are certainly an upgrade Good as new.
The challenges to putting it in an early case are two fold.
What do you gain and the 9 bolt output flange.
The only benefit to the 3.0 crank over the 2.4/2.7 crank are the wider flyweights that add to torsional rigidity. The nine bolt flange while an obvious upgrade add almost no benefit until you reach 500+hp.
Some early 3.0 turbo case were modified to accept the 74.4 crank the the benefits were obvious.