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Author Topic:   steel or nogular (spelling)
dragonfly69
Dirt Newbie

Total posts: 2
posted December 11, 2002 09:33 PM
ok im trying to get my 383 stroker ready for this coming season... plz tell me some one lol what is the nodgular crank ? and which is the best nog or steel ?

outlawstock17
Dirt Forum Champ
Total posts: 620
posted December 11, 2002 09:52 PM
"nodular" cranks are cast, "steel" cranks are forged. a forged crank is stronger. actually the term "steel" applies to all cranks. all of them are made from steel, just different grades of steel. some are cast, some are forged and some are machined from billet bar stock. i could be mistaken, but i believe 4340 steel is the strongest of the alloys used to forge cranks.

billet cranks are usually the most expensive but i'm not certain that they are any stronger than a forged crank due to the grain structure of a forging.

anyone else more knowledgeable want to comment?

dirtracer14
Dirt Freak

Total posts: 499
posted December 11, 2002 10:45 PM UIN: 23443678
The way i understand it is that a cast crank is made from metal poured into a mold and a forged is turned down from a solid peice? Am i right here or out in left feild?

outlawstock17
Dirt Forum Champ
Total posts: 620
posted December 12, 2002 03:39 AM
actually, a billet crank is the one that is turned down from a solid piece of billet bar stock.

you're correct that a cast crank is molten metal poured into a mold.

a forged crank is a solid piece of metal, superheated and then pressed into shape using dies and a lot of pressure.

jammin
Dirt Administrator

Total posts: 5556
posted December 12, 2002 08:19 AM UIN: 16262997
Take a look here, you can see some of the comparisons for materials used in cranks.

http://www.thedirtforum.com/materials.htm

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