Forged rod brand choices

[Jeff240sx]

As far as I know there's no such thing as aluminum rods, at least, there aren't for the KA.

All of these rods are forged steel....carillo makes fully machined rods which are the best (it goes forged, billet, fully machined) in the line of quality.

Crower rods are 3040 Chromoly, as are Pauter. Forged pistons are nearly always aluminum.

And I don't know how Carillo machined rods are the "best". It seems you are contradicting yourself. If you're saying that rods are forged then machined.. every company does that. They take a piece of billet chromoly, forge it under some sick number, like 30,000 tons of pressure, then machine the rod out of the piece.

In the low end piston/rod world, there are forged (billet->forge->machined), and machined (down from a piece of billet, un-pressed), and stamped (cut out of the metal billet with a cookie-cutter type machine). Stamped is by far the worst, and forged is by far the best.Billet is just what the raw, semi-shaped metal is called. -Jeff

[Chaotic_Warlord]

Crower rods are 3040 Chromoly, as are Pauter. Forged pistons are nearly always aluminum.

And I don't know how Carillo machined rods are the "best". It seems you are contradicting yourself. If you're saying that rods are forged then machined.. every company does that. They take a piece of billet chromoly, forge it under some sick number, like 30,000 tons of pressure, then machine the rod out of the piece.

In the low end piston/rod world, there are forged (billet->forge->machined), and machined (down from a piece of billet, un-pressed), and stamped (cut out of the metal billet with a cookie-cutter type machine). Stamped is by far the worst, and forged is by far the best.Billet is just what the raw, semi-shaped metal is called. -Jeff

Ok that answers my question about what type of metal is better and what process is better to have... But what about this crytreating process, while I understand that it strengthens the bond of the molecules by shrinking them down I would think that it would lead to a weaker product since when something is frozen it becomes brittle or am I wrong. Any metalurgist out there want to explain why this is a better or worse thing in laymans terms.

[Jeff240sx]

Ok that answers my question about what type of metal is better and what process is better to have... But what about this crytreating process, while I understand that it strengthens the bond of the molecules by shrinking them down I would think that it would lead to a weaker product since when something is frozen it becomes brittle or am I wrong. Any metalurgist out there want to explain why this is a better or worse thing in laymans terms.

From what I've read (which was a long time ago), and from my limited knowledge of thermodynamics.. Cryotreating won't make a forged rod any stronger, as 30k tons of pressure crushing the molecules in place is far, far stronger than what chilling it would make it.However, the cryotreating for stock parts, like transmission gears (can't really think of much else that would need it once you build a motor. The cryo process will compact the molecules down to make a much stronger than stock product. A cryo process is ~20 hours or so, it's deep-frozen with liquid nitrogen and then gradually thawed over a long time, so the molecules don't bounce back to their original position.-Jeff

[MarkEmark]

Crower rods are 3040 Chromoly, as are Pauter. Forged pistons are nearly always aluminum.

And I don't know how Carillo machined rods are the "best". It seems you are contradicting yourself. If you're saying that rods are forged then machined.. every company does that. They take a piece of billet chromoly, forge it under some sick number, like 30,000 tons of pressure, then machine the rod out of the piece.

In the low end piston/rod world, there are forged (billet->forge->machined), and machined (down from a piece of billet, un-pressed), and stamped (cut out of the metal billet with a cookie-cutter type machine). Stamped is by far the worst, and forged is by far the best.Billet is just what the raw, semi-shaped metal is called. -Jeff

I wasn't talking about pistons. Of course it tmakes no sense for pistons to be forged steel if they could be forged aluminum. The information I was quoting is straight from one of the best rod manufacturers out there: Carrillo

http://www.carrilloind.com/pdfs/10777_eprint.pdf

Refer to page two. Not every rod is forged from a billet piece of metal, at least not according to Carrillo. Perhaps I should have clarified...

Powder forged --> forged ---> forged billet ---> fully machined

[Jeff240sx]

That whole thing seems more for hype than help, which is what that .pdf claims to be. All "forged" rods that are talked about on this forum are made from a billet metal (chromoly usually, but carrillo talks about stainless alot) and machined to size. If you've held a forged rod next to a stock rod, you'll see the difference. The stock rod is a cast piece, maybe that's what powder forged is? I've never head that term before. The stock rod has bumps, dimples, ect. The forged rods are shiny and smooth.Anyway.. I know Carrillo knows more about their business than I do. But they've used terms I've never heard, and seem to infer that they are superior because they do things every other rod manufacturer does...-Jeff

[ProdOfFL]

Not trying to be an antagonist, but I just snapped my rod in half...my Crower rod. I paid a ****-ton for them too. I was pissed. Read that thing on the Carillo web page and found out some good info on it. I asked the shop if they did that and of course they said they had no clue what the hell I was talking about and said that was probably being over-cautious or something. I know where I won't be going this time. So I guess I'm in the hunt for some more internals. Anyone got any good places lately w/ some deals?

Do have a ? about the stock crank though. Has anyone heard any problems on it or is it good to go for high boost aps? I think that's the goal this time.

[Jookmasta]

well prod of fl.........................................ur in luck:

zerothread?id=158982

i think it is a very good price for either one. yes u might not need the pistons but im sure when u were buying internals, u could've used a deal like this. hope this helps

[Craving4Boost]

wow good deal indeed...