Drilled stock rotors?
Thread Starter
Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
Drilled stock rotors?
I know that drilled rotors are for looks only but is there any reason why a competent machine shop couldn't drill your stock rotors for an appearance mod? Are most aftermarket rotors drilled or are the holes somehow cast into the metal? Replacement rotors are pretty cheap, under $100 a set (4) at some places, and if a machine shop could drill them for $100 you could save a few hundred bucks :cheers: .
[Modified by jmzvet, 8:00 AM 9/20/2003]
[Modified by jmzvet, 8:00 AM 9/20/2003]
Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Re: Drilled stock rotors? (jmzvet)
I am sure it is possible although I would not waste any money on doing it. If you want the real good looking zinc washed, slotted and drilled rotors... get the baers and run stock pads. They will stay looking the best with stock pads. :smash:
VR :cheers:
VR :cheers:
Team Owner
Joined: Mar 2001
Posts: 25,013
Likes: 79
From: Manitoba/San Jose del Cabo
Cruise-In III Veteran
St. Jude Donor '11
Re: Drilled stock rotors? (vetterdstr)
Forum member WGreen drilled his own rotors at home. He is no machinist. I have seen them, they look good. The only thing it cost him was time, lots of time!
:D :cheers:
:D :cheers:
Instructor
Joined: Sep 2002
Posts: 136
Likes: 0
From: Oakhurst NJ
Re: Drilled stock rotors? (94-98 Trans Am)
Might not warp but under hard conditions i hear they could crack easier.... someone said to me "crossdrilled rotors are great for racecars, but then after the races we throw the rotors away so it doesn't matter."
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Re: Drilled stock rotors? (jmzvet)
A drill bit will inherently leave fairly sharp corners, whereas a cored hole features generous radii - much better when trying to avoid stress-cracking. From what I've heard, slotted and cored rotors run cooler than stock rotors and may very well prevent the dreaded rotor warp we all experience at one time or another.
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Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: Drilled stock rotors? (94-98 Trans Am)
You say its only for appereance? I'm sure they wouldn't warp nearly as fast as stock rotors. I could be wrong..someone correct me if I am.
http://www.stoptech.com/whitepapers/...otors_myth.htm
As I have mentioned before I have seen too many warped rotors "cured" by hard repeated braking on the track. It wipes off pad material build up.
Le Mans Master
Joined: Apr 2000
Posts: 7,218
Likes: 1
From: Cresskill NJ
Re: Drilled stock rotors? (Richin Chicago)
From my understanding the way to go is slotted. I seem to remember someone saying that Ferrari uses slotted rotors on their race cars and drilled on their street cars. When a Ferrari representative was asked why he said that the slotted actually serves a purpose while the drilled is merely for appearance. Not sure how accurate this is tho...maybe someone else knows better than I do...
Chris
Chris