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Subject: "Machining Question" Previous topic | Next topic
stvFeb-10-04 07:08 AM
Member since Jun 04th 2003
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#68132, "Machining Question"


          

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

~STV~

  

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mcgyvrFeb-10-04 07:11 AM
Old School 2GNTer
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#68133, "RE: Machining Question"
In response to Reply # 0


          

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

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

  

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stvFeb-10-04 07:37 AM
Member since Jun 04th 2003
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#68134, "RE: Machining Question"
In response to Reply # 1


          

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

~STV~

  

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MotoFoolFeb-10-04 10:38 AM
Member since Sep 08th 2002
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#68146, "RE: Machining Question"
In response to Reply # 2


          

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.

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.

  

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AdministratorStar Turbo TalonFeb-10-04 08:38 PM
Member since Oct 21st 2003
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#68184, "RE: Machining Question"
In response to Reply # 3




          

our cranks are already knife edged.

Terry

  

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MotoFoolFeb-10-04 09:04 PM
Member since Sep 08th 2002
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#68185, "RE: Machining Question"
In response to Reply # 4


          

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.

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.

  

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