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Should I get OEM rotors?

Old 06-02-2010, 11:33 AM
  #21  
Chris_B
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Originally Posted by betamotorsports View Post
Uuuhhh, Chris B. That SAE paper you quoted was a research effort into brake squeal and noise, not pad bite.
My bad! Apparently, I have waaayyy too much data lying around! That is a good paper too, but not relevant to this discussion.

Try 2006-01-0691, titled "The Effect of Rotor Crossdrilling on Brake Performance" by Antanaitis and Rifici (GM).

Chris
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Old 06-02-2010, 11:41 AM
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Do you actually have these papers or are you doing a search on sae.org and then throwing some of the search results out here?
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Old 06-02-2010, 11:49 AM
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Originally Posted by betamotorsports View Post
Do you actually have these papers or are you doing a search on sae.org and then throwing some of the search results out here?
Come by my desk and you can look over my copies. If you're not in SoCal, the papers are available for purchase.

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Old 06-02-2010, 12:32 PM
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Cool. Then you would know the results of the five areas tested on four different braking systems:

1. Rotor Cooling

8 to 20% improvement in rotor temperature depending on vehicle speed, mostly on the front rotors.

2. Output Fade and Performance

No difference in fade and performance except at high operating temps the linings wear faster with cross drilled rotors.

3. Wet Brake Output

Cross drilled showed greater deceleration at low pedal pressures but no difference at high pedal pressures.

4. High Temp Pedal Feel

More pedal travel required to achieve the same level of deceleration due to increased compliance in the pad material and cross drilled rotors.

5. Lining wear

Increased across the board.
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Old 03-21-2012, 07:01 PM
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So, is that saying that there is pretty much no point to drilling or slotting the rotors? With the exception of cooling?

I'm assuming that's for the slotting, not drilling?
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Old 03-21-2012, 09:05 PM
  #26  
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Originally Posted by mezer View Post
Don't buy stoptech, R1concepts 1 piece rotors. All they do is buy Centric Premium rotors for $20-30, and put useless slots / holes in them, and sell them for 400% markup. Stoptech, and R1concept rotors are just Centric Premium blank rotors.

Go to rockauto, or any other parts place that sells Centric rotors, and buy a Premium, Blank Centric rotor for $30-40 each. The part number for the Premium is 120.xxxxx. Don't buy the stardard centric rotors (Part number is 121.xxxxx)

The people with the stoptech or r1concept slotted / drilled rotors just paid an extra $50 PER ROTOR for some useless slots / drilled holes.
^^^^^^
BEST KEPT SECRET! Centric Premium Rotors are top notch and used by others under another name for +$$$!
BTW..other than Rock Auto (great prices)..you might wanna look here too>>

Plain Premium Rotor for FRONT 2007:
Less than Rock Auto! $56 vs $63 for RockAuto
You can also get Slotted only here..Rock Auto only has Slotted AND Drilled Combos.

http://www.theautopartsshop.com/disc...e12042080.html

Last edited by ronn1; 03-21-2012 at 09:06 PM.
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Old 03-22-2012, 09:50 AM
  #27  
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Subscribing to this thread solely to find this link in a year or so when I need to buy rotors.

I was told by a Vendor on here about two years ago that almost every manufacturer buys the same rotors, slaps their name on them, and jacks the price up. You guys could have very well made my day.
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Old 03-22-2012, 09:58 AM
  #28  
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^ +1
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Old 03-22-2012, 10:06 AM
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So I'm looking at blank discs, there seems to be very little, if any reason to get slotted and no reason whatsoever to get drilled. Even racing applications won't use drilled (unless carbon/carbon composite)

EBC blanks or Centric blanks, premium, I guess?
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Old 03-22-2012, 10:14 AM
  #30  
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I'm also going to note that the 121 centric part number is for their standard C-Tec rotors, not their premium. I check the centric site and using their catalogue for the 350, the listing shows as premium, but the part number (and link) goes straight to their c-tek standard replacements.

Last edited by F2CMaDMaXX; 03-22-2012 at 10:42 AM.
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Old 03-22-2012, 11:49 AM
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Originally Posted by F2CMaDMaXX View Post
I'm also going to note that the 121 centric part number is for their standard C-Tec rotors, not their premium. I check the centric site and using their catalogue for the 350, the listing shows as premium, but the part number (and link) goes straight to their c-tek standard replacements.
Get the premium. It has anti rust coat on hats and inner vains. Otherwise, your rotors will look like CHIT with rust.
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Old 03-22-2012, 12:21 PM
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I noticed that feature on them, looks nice, although we don't get salt here, things still rust eventually. They'd have been a God-send in England, 350z stock exhausts 'rot' off the car in about 4 years.

The EBC rotors are also good though, i'm just wondering the best between then, it's about $1-$2 difference in price on Amazon (cheapest location i found with free shipping too)

Also, Centric part number for the premiums is 120.42074 - their site will allow that number to show along with the 121 number, making it appear that the 121 number is what you want, but they're just generic OE replacements.
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Old 03-22-2012, 12:51 PM
  #33  
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Originally Posted by ronn1 View Post
^^^^^^
BEST KEPT SECRET! Centric Premium Rotors are top notch and used by others under another name for +$$$!
Agree. Put them on a 350Z. Performance is as good as OEM at half the price.
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Old 03-22-2012, 04:38 PM
  #34  
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Just an FYI as well, Power Slot and StopTech are divisions of Centric Parts. Classed as performance and ultra performance, respectively.


http://www.amazon.com/Centric-Parts-...=2BVHHU04QFXSV





http://www.amazon.com/EBC-Brakes-UPR...=2BVHHU04QFXSV


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