fracture rod technology
 

Anyone hear of this? It is used on Cummings engines but looks like many auto makers are using it on performance applications. Don't know if there is a need in the Porsche engine but it could reduce the cost of manufacturing performance rods. Neat concept.

Testing my memory here but didn't they use this in the old aircraft engines?

On some older motorcycle engines too.
Bob

This tech is used in the Ford 4.6 engines also

The newer cars 996, 997 use cracked rods (steel). The titanium rods are conventional. I do not know about 993 race cars or GT3s.

BMW has been using this technology for a very long time.

These rods cannot be re-machined. Once they are done, the are DONE!

I'll see if I can snap a pic of one tomorrow.

looks like it is very important to have them very clean prior to installing the caps.

993RSR's had special OEM factory rods and everyone tossed those in favor of Carrillo, Pauter, Arrow, etc.

GT-3's, Cup cars, and RSR's use various versions of Pankl titanium rods.

Cracked rods are best suited for street engines as they are cheaper to manufacture in volume.