Quote:
Originally Posted by Nine Ball
Be careful about the term "forged". It gets tossed around a lot. These OEM wheels are likely cast aluminum centers with a "rotary forged" outer hoop. This is what is found on most "forged" OEM wheels. In the aftermarket industry, we call them flow-formed or rotary forged. Using the term "forged" in the aftermarket means the wheel was CNC machined out of a solid chunk of forged billet aluminum. There is a big difference in quality and price between rotary forged and CNC forged. Here is a post I made to help define the differences:
http://www.camaro5.com/forums/showthread.php?t=121777
Tony |
Interesting, thanks for the informative link Tony.
I was under the impression that the ZL1 wheels were forged monoblock. GM's statement that the ZL1 wheel and tire set up is lighter than the factory SS setup, even with the wider wheel and tire, led me to believe this.
Now I wonder if they are "flow formed". Anybody know?