Quote:
Originally Posted by Steve@Rennsport
Stock Porsche rods, with the exception of the 993 ones, are plenty strong and do not fail unless the bearing has an issue.
The main problem with OEM rods is they are heavy and that exponentially loads the bearings above 7K RPM. Porsche did use a nitrided OEM rod in the 2.8 & 3.0 RSR engines, but that was due to FIA Gp 3 homologation. The factory usually used a Ti rod in almost all race engines.
We prefer Pauter or Carrillo 4340 rods in all of our race engines for weight reduction and additional strength. (Arrow also makes an excellent product). Special apps get Ti rods, however these are life-limited so they are not for anyone on a budget.
|
What signs does the rod bearings exhibit?