Chas. Schlismann wrote:
> Drilled rotors have a reputation for cracking, though two of my race cars
>have them and have never cracked. Of course, they have a counter sink in each
>hole. I personally feel, after much research, that slotted rotors are the way
I think this is a time to recommend a book. This is a book I think
EVERYONE who ever modifies anything should study before making any
modifications or even before going out and purchasing their first bolt.
It is one I wish my step father would have handed me when he drafted
my sister and I as cheap (unpaid) unskilled after school labour into the
family machine shop business.
"Carrol Smith's Nuts, Bolts, fasteners and Plumbing Handbook"
By Carrol Smith, 1990 MBI Publishing Company
It may be the single most important "how-to" book out there. Chapter 2
is titled "Stress, strain, load and fatigue".
Read chapters 1 & 2 before deciding to do anything to a metal part that
undergoes strong repeated stress. Understanding the concept of stress
flow can change how you look at everything. After reading it I
personally would never install drilled brake rotors.