when i was looking thru arp rod bolts i seen the "cracked rod" i didnt really understand why they called it that and i pulled one of my pistons out and i was like WTF..the rod and rod cap were one piece and they broke it from what it looked like to make the cap..weird

sorry there's no significance to this thread

 

that is weird...

 

No actually it is one of the best designs ever. many manufacturers have realized the benefits of this...

imagine taking aq standard small block connecting rod, and cap (with a flat surface) when you mount it, that flat surface can slide (especially with extreme pressure/ horsepower levels)

now take a rod that you make with a perfectly round bearing surface, and you brak it.... it will have a very distinct ridge, so it will only go together one way, which also means once assembled the surfaces will not slide, and move out of place.

dodge did it with the srt-4 engine also, and amg mercedes are doing it. porsche has done it for years. it is actually a genius design. I just wish aftermarket would make a strong set that were split.

 

they've been doing that for years.....

 

yea thought about it for a bit and it good idea..its just ive never seen one like this im used to my old circle track 350's and 400's

 

Even John Deere does it on their diesels

 

Why would they need to when they use MUCH better metals and forged them. My rods are a hell of alot stronger than any powdered metal cracked rods.

 

A PW metal rod is indeed a forged rod,. The powdered metal part allows for much more consistensy throught the entire rod than previuos billet forgeing procesess.

peace
Hog

 

the whole reason i ike the cracked rod design, is because it creates the ridge, that means when you put it back together, it cannot slip, and put any shear force on the bolt

 

and a hell of alot more expensive......