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Forum namePerformance/Engine
Topic subjectMachining Question
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=68132
68132, Machining Question
Posted by stv, Feb-10-04 07:08 AM
Has anyone had their Crankshaft machined, not turned, just machined to make it lighter? if so, can ya give me some specs or details. Also can we machine stock cams to do any good? I kinda got a good hook up at a machine shop, and so I wanna tell them what to do..thanks.. I searched, found notta
68133, RE: Machining Question
Posted by mcgyvr, Feb-10-04 07:11 AM
you can have the crank knifeedged.
that helps it cut through the oil better and also lightenes it a bit

you can have the stock cams reground, that usually entails adding material to some spots, which if the shop hasnt done it before dont even let them try.

BUT these IMO arent worth the time or money for such little gains

68134, RE: Machining Question
Posted by stv, Feb-10-04 07:37 AM
haha ok, just wonderin.. thanks.. I may still have the crank done, b/c I think I may be able to get it done for very cheap.. thanks though
68146, RE: Machining Question
Posted by MotoFool, Feb-10-04 10:38 AM
lightning the crank in that manner is usually called knife edging or butchering.

they cut weight of the crank and make it more aerodynamic.

then it needs to be balanced.

shouldn't be more then 500$

it would have the same benefit asa aluminum flywheel for the most part.
68184, RE: Machining Question
Posted by Star Turbo Talon, Feb-10-04 08:38 PM
our cranks are already knife edged.

Terry
68185, RE: Machining Question
Posted by MotoFool, Feb-10-04 09:04 PM
yes and no.

there is ALOT of material that can be removed 1-3 lbs depending on skill of the machinist.

we have a very good setup crank from the factory as far as strength and aerodynamics but it is by far the best setup ever.