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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: Connecting rod
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Sun, 17 July 2005 09:38
 
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What was I smoking when I replied... I was thinking about pistons and typing about conrods (thus the "Forgies" comment).
I don't entirely agree with the "No conrods are cast" comment though.
Not very many conrods are cast and most likely no vehicle currently in production uses cast conrods, however, to say they don't exist in any automotive application is wrong.
Many manufacturers used cast rods at least until the 70/80's... mostly in low RPM wide tolerance engines though. (Pontiac, Buick etc.)
Even the cast rods are cast with the molten steel under pressure though.
"most" OEM rods are forged (hot) using carbon steel
most aftermarket forged rods are made the same way just to a higher quality spec and usually with a higher grade steel or alloy.
Some rods are machined from billet but only really for once off type work.
Some higher quality rods are forged and then fully machined which pretty much gaurantee's there will be no surface faults.
Then there is titanium rods which can be forged or machined from billed.
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