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Re: Please don't buy drilled rotors!!!
[Re: feets]
#1676945
11/03/14 09:57 PM
11/03/14 09:57 PM
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Joined: Jan 2003
Posts: 28,067
Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Here's the back side of the caliper cooling duct.
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
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Re: Please don't buy drilled rotors!!!
[Re: feets]
#1676948
11/03/14 10:11 PM
11/03/14 10:11 PM
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Joined: Jan 2009
Posts: 813
Ontario,Canada
brads70
super stock
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super stock
Joined: Jan 2009
Posts: 813
Ontario,Canada
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Quote:
Quote:
What calipers does this car use? Same as you have? 8 piston Brembo's? If so how much is that caliper duct? 
It uses a similar caliper but not the same.
You do not want to price ANYTHING for an SLR. They are all short run custom made pieces. Prices are astronomical.
I had the same idea when I took those pics a few years ago. I don't recall what the price was but it ran me off even with my cost + 10% employee pricing.
Your right! I found this.... http://www.mbpartsworld.com/showAssembly.aspx?ukey_product=8019422&ukey_assembly=1082505
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Re: Please don't buy drilled rotors!!!
[Re: 72440CUDA]
#1676951
11/03/14 11:49 PM
11/03/14 11:49 PM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
I got lucky at Woodward!
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I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
Quote:
I recently got the missing brake rotor from Dr. Diff the other week. The front rotors from the Stage 4 kit I got have internal vanes that are vertical while these new rotors are curved
The weird thing is they are both curved in the same direction! .... Is it ideal? No, but I have no problems running like this because I doubt I'll get into high enough temps to max out my...
I noticed the same thing with my kit. Vanes are same direction but drilled holes/slots are different... when they crack I'll switch them out to slotted. Car gets very few miles, so I can wait, not a show stopper.
I haven't taken a look at mine... That's going to bug me so much as I get bugged by unsymmetry. Is there a non-slotted version available? Maybe off another car (for the future). 
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Re: Please don't buy drilled rotors!!!
[Re: MuuMuu101]
#1676952
11/04/14 12:04 AM
11/04/14 12:04 AM
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Joined: Jun 2007
Posts: 2,432
NorCal
RylisPro
OP
top fuel
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OP
top fuel
Joined: Jun 2007
Posts: 2,432
NorCal
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I would not worry about it as I would have no problems running these wrong way rotors. I was reading up and the difference would be about 100 degrees which isn't much when you consider XP12's can take about 1,850 degrees F. You have a much lighter car also which makes a big difference 
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Re: Please don't buy drilled rotors!!!
[Re: RylisPro]
#1676953
11/04/14 12:06 AM
11/04/14 12:06 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
I got lucky at Woodward!
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I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
I would not worry about it as I would have no problems running these wrong way rotors.
I was reading up and the difference would be about 100 degrees which isn't much when you consider XP12's can take about 1,850 degrees F.
You have a much lighter car also which makes a big difference
Plus, mine is considerably slower as well with the tired 273.
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Re: Please don't buy drilled rotors!!!
[Re: RylisPro]
#1676954
11/05/14 11:40 AM
11/05/14 11:40 AM
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Joined: Mar 2014
Posts: 40
upper So. CA
ntsqd
member
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member
Joined: Mar 2014
Posts: 40
upper So. CA
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How (and when) was that temp difference measured?
Personally, if the kit's vendor isn't going to send me the correct rotors for each side, or at least straight vane rotors, I'd want my money back. It is either a cost-cutting measure or a lack of availability driving this and neither yields an acceptable rsult.
I used to swerve around my hallucinations, now I drive right thru them.
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Re: Please don't buy drilled rotors!!!
[Re: ntsqd]
#1676955
11/05/14 12:20 PM
11/05/14 12:20 PM
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Joined: Jan 2003
Posts: 28,067
Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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I seriously doubt that the direction of the vanes will make any difference in performance.
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
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Re: Please don't buy drilled rotors!!!
[Re: ntsqd]
#1676956
11/05/14 02:51 PM
11/05/14 02:51 PM
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Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Quote:
How (and when) was that temp difference measured?
Personally, if the kit's vendor isn't going to send me the correct rotors for each side, or at least straight vane rotors, I'd want my money back. It is either a cost-cutting measure or a lack of availability driving this and neither yields an acceptable rsult.
I agree, If directionally of the vanes is important enough to provide an advertised marketing benefit over straight vane, its important enough that it it at least go the right direction, in my mind. Additionally, any unintentional temp difference side to side, will cause pad friction to vary, slight, but it will.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Please don't buy drilled rotors!!!
[Re: ntsqd]
#1676958
11/06/14 02:57 AM
11/06/14 02:57 AM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Engineers like to turd polish, left hand thread lug studs come to mind.
Accountants like to penny pinch.
Somewhere in between is ideal.
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: Please don't buy drilled rotors!!!
[Re: ntsqd]
#1676959
11/06/14 03:59 AM
11/06/14 03:59 AM
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Joined: Jun 2007
Posts: 2,432
NorCal
RylisPro
OP
top fuel
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OP
top fuel
Joined: Jun 2007
Posts: 2,432
NorCal
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Quote:
How (and when) was that temp difference measured?
To be honest I just found some info on an Audi forum
http://www.audizine.com/forum/showthread.php/329948-Directional-Vanes-How-important-are-they
Like I said I understand that it is wrong but yeah I'm not really worried about it. The rotor is still a 13 inch 24lb. heat sink and I'm sure it will perform just fine at the track. If it doesn't, I will certainly post it up on here.
I am grateful Dr. Diff produced a pretty good Stage 4 brake kit for the money, so no way am I returning them. If rotors with the opposite vanes are made I will just buy two more
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Re: Please don't buy drilled rotors!!!
[Re: feets]
#1676960
11/06/14 09:29 PM
11/06/14 09:29 PM
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Joined: Jan 2003
Posts: 8,163
Plymouth, MI
Blusmbl
master
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master
Joined: Jan 2003
Posts: 8,163
Plymouth, MI
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Quote:
Pretty cheap compared to the $20,000 rotors.
If somebody wants to really try them, the ZR1 Corvette cf rotors are only around $950/apiece on Amazon.
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Re: Please don't buy drilled rotors!!!
[Re: Blusmbl]
#1676961
11/06/14 10:15 PM
11/06/14 10:15 PM
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Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Penguin-hating Ginger
Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
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Quote:
Quote:
Pretty cheap compared to the $20,000 rotors.
If somebody wants to really try them, the ZR1 Corvette cf rotors are only around $950/apiece on Amazon.
There was all sorts of companies out at SEMA with CF rotors as well...bunch of offshore/probably cheaper sorta ones too.
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Re: Please don't buy drilled rotors!!!
[Re: feets]
#1676963
11/07/14 09:58 PM
11/07/14 09:58 PM
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Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Penguin-hating Ginger
Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
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Quote:
Quote:
There was all sorts of companies out at SEMA with CF rotors as well...bunch of offshore/probably cheaper sorta ones too.
That scares me.
The Brembo and AP Racing ones looked nice though. 
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Re: Please don't buy drilled rotors!!!
[Re: OzHemi]
#1676964
11/08/14 12:26 PM
11/08/14 12:26 PM
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Joined: Jan 2003
Posts: 28,067
Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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I got a kick out of seeing the pics of the McLaren carbon ceramic rotor that ate the brake pad packing plate.
I really should have asked the tech to send them to me.
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
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or the calipers at $2700 each! I just got a pair for $600 
