RS4 (B7 Platform) Discussion Discussion forum for the B7 Audi RS4

Girodisc can do replacement rotors

Thread Tools
 
Search this Thread
 
Old 10-15-2007, 05:03 PM
  #1  
AudiWorld Senior Member
Thread Starter
 
JMSIV's Avatar
 
Join Date: Dec 2004
Posts: 874
Likes: 0
Received 0 Likes on 0 Posts
Default Girodisc can do replacement rotors

<center><img src="http://pictureposter.audiworld.com/85168/lambo.jpg"></center><p>Girodisc, who makes replacement rotors for the Gallardo has a very nice rotor that can be done for our car. We need verification of the offset (which may be different for the RS4 vs. G-car and RS6) but the price would be the same: $500 per rotor. That's a bit more than the factory cost, but it is a very nice directionally vaned 2-piece rotor.

This is the pair of Gallardo rotors, we would be looking at the fronts. You can also do a 380 mm rotor with a bracket to move the calipers, assuming you have wheels they will fit under.

Ask for Martin www.girodisc.com

No, I have no affiliation or additional knowledge. Only a desire to have both my front rotors spin the direction they were designed to.

Cheers!
Old 10-15-2007, 05:07 PM
  #2  
Senior Member
 
daveak05's Avatar
 
Join Date: Dec 2005
Posts: 8,364
Likes: 0
Received 0 Likes on 0 Posts
Default slotted instead of drilled?

weight and heat issue?
Old 10-15-2007, 05:33 PM
  #3  
AudiWorld Super User
 
Bob W.'s Avatar
 
Join Date: Mar 2000
Posts: 24,309
Likes: 0
Received 0 Likes on 0 Posts
Default probably neither.

slotted rotors are stronger and wear out the pads less quickly than drilled rotors.
Old 10-15-2007, 05:39 PM
  #4  
AudiWorld Super User
 
Jet Jockey/A4 Pilot's Avatar
 
Join Date: Nov 2002
Location: Montreal, Canada
Posts: 18,597
Likes: 0
Received 0 Likes on 0 Posts
Default

The biggest advantage X drills have over slotted is weight reduction.
Old 10-15-2007, 06:15 PM
  #5  
Senior Member
 
daveak05's Avatar
 
Join Date: Dec 2005
Posts: 8,364
Likes: 0
Received 0 Likes on 0 Posts
Default drilled have better cooling properties but less

braking efficiency, in general.
Old 10-15-2007, 06:27 PM
  #6  
Senior Member
 
daveak05's Avatar
 
Join Date: Dec 2005
Posts: 8,364
Likes: 0
Received 0 Likes on 0 Posts
Default the slotted design is also for heat dissipation. personally i'd always rather have non drilled

because they tend to stop better. but, the reason i asked about heat issues here, is because of many people tacking their cars and also a high number of rotor complaints already. the RS4 being heavy and all, it doesn't take much to overheat the rotors.
Old 10-15-2007, 07:12 PM
  #7  
AudiWorld Super User
 
Bob W.'s Avatar
 
Join Date: Mar 2000
Posts: 24,309
Likes: 0
Received 0 Likes on 0 Posts
Default all things considered, it's not a big advantage at all.

what does a drilled rotor save vs. slotted? a few ounces? and for that savings, you get increased pad wear and decreased rotor strength. slotted is the way to go, IMHO. unless we're talking about Porsche rotors, but those aren't drilled per se.
Old 10-15-2007, 07:35 PM
  #8  
Senior Member
 
daveak05's Avatar
 
Join Date: Dec 2005
Posts: 8,364
Likes: 0
Received 0 Likes on 0 Posts
Default and...

there's also more surface area, more contact for the pads. but the drilled rotors do dissipate heat very well.
Old 10-15-2007, 10:23 PM
  #9  
AudiWorld Member
 
RS4SPKS's Avatar
 
Join Date: Jun 2006
Posts: 370
Likes: 0
Received 0 Likes on 0 Posts
Default

Girodisc website isn't working - but I'm curious!
Old 10-16-2007, 05:17 AM
  #10  
AudiWorld Super User
 
Jet Jockey/A4 Pilot's Avatar
 
Join Date: Nov 2002
Location: Montreal, Canada
Posts: 18,597
Likes: 0
Received 0 Likes on 0 Posts
Default What ever the amount of weight saved is, it seems to be important enough for Porsche, Ferrari...

Jag, MB and many other high performance car manufacturers to use this method in their rotors. Porsche even uses X-drills on their PCCBs which are already twice as light.

Don't forget all the high performance motor cycles use X-drilled rotors too and none of them use slotted brakes. X-Drills will do everything a slotted rotor will do but better.

The big disadvantage of the X-drills is cracking.


Quick Reply: Girodisc can do replacement rotors



All times are GMT -8. The time now is 05:51 AM.