Quote:

Holes in pretty much anything are evil stress risers, avoid them.

I know of a set of drilled rotors that didn't even make it 10k miles before cracking. Yeah, they were home drilled about 20 years ago. Don't care, no drilled for me. Those that want them know that I'm laughing at your ignorance.



Now I'm laughing at your ignorance.

Holes cast into the rotor during manufacturing do not promote stress fractures.
Holes drilled into rotors after casting will lead to fractures.

That's been proven through the years.

The holes provide limited outgassing, reduce weight, and save raw materials. They also look sporty to some people. That's why they get used.

Sometimes performance oriented auto manufacturers investigate things a wee bit more thoroughly than internet keyboard warriors.

















Now, would you like to revise that statement?

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon