fracture rod technology

James Brown · James Brown's Garage

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.

cgarr · cgarr's Garage

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

HawgRyder · HawgRyder's Garage

On some older motorcycle engines too.
Bob

MarKoBrow · 01-27-2010, 01:27 PM

This tech is used in the Ford 4.6 engines also

Flieger · Flieger's Garage

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

nocarrier · 01-27-2010, 03:03 PM

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.

James Brown · James Brown's Garage

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

Flieger · Flieger's Garage

Connecting rod - Wikipedia, the free encyclopedia

Steve@Rennsport · 01-27-2010, 03:45 PM

Quote:

Originally Posted by Flieger

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

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.