Drilled/Slotted Rotor Dilemna

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Old Jan 22, 2009 | 04:29 PM
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Drilled/Slotted Rotor Dilemna

I have thoroughly read about drilled/slotted rotors and I came to the conclusion that getting slotted rotors would best fit my driving style.. Which includes no track driving... My question is, when people debate which to get... (Slotted/Drilled) Why not get both in one? Is it because of the price?

Just curious...

I haven't figured this out yet though, what is the benefit of having drilled and slotted on one rotor? Just extra cleaning/Vaccuming/Stopping power?
 
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Old Jan 22, 2009 | 04:42 PM
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i wondered the same thing, but i got drilled Stoptech for daily driving because it was a good deal.
 
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Old Jan 22, 2009 | 08:24 PM
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For normal everyday driving, it makes no difference. Just depends on the deal that you can get....
 
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Old Jan 23, 2009 | 05:34 PM
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Drilled rotors aren't the best for everyday driving because the purpose of the drilled holes is to increase the surface area of the rotors and therefore increase the rate at which they expel heat into the surrounding air. The drilled holes, however, decrease the area of rotor which is in contact with the pad during braking, which in turn decreases instantaneous stopping power. The brakes will cool down faster, which makes them excellent for track driving so that you can do multiple hard braking maneuvers closer together without getting as bad of brake fade, however, for a single stop they'll usually perform worse than solid rotors would. Hope this helped.
 
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Old Jan 23, 2009 | 05:50 PM
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^ interesting, i don't do track driving i probably should of bought slotted rotors then.
 
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Old Jan 23, 2009 | 09:08 PM
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Drilled rotors are not "excellent" for track.
I have read this time and time again...
 
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Old Jan 23, 2009 | 09:20 PM
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Drilled can crack more often on the track. Drilled look better IMO and cool better but overall slotted is a safer choice. Mine are drilled and slotted.
 
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Old Jan 25, 2009 | 09:01 AM
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Negatives of drilled or slotted rotors: on the street is you are eliminating some of the surface area of the rotor, drilled can crack when heated, slotted speeds up pad wear by scraping a small amount off every time you apply the brakes, rust getting in the slots or drilled holes.

Benefits: drilled can help cool the rotors (supposedly), slotted gives a clean breaking surface because of the scraped pad material (it scraped areas that might be glazed from heat). Main benefit: they both look bitchin' on their own and even better when paired together.
 
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Old Jan 25, 2009 | 09:26 AM
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This is a StopTech drilled rotor, NO TRACK DRIVING:

Name:  CrackedRotor.jpg
Views: 1029
Size:  52.8 KB

They WILL NOT waranty Drilled rotors.
 
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Old Jan 25, 2009 | 11:36 AM
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^ oh wow. Maybe you got a defected rotors? i never heard anyone cracking stop tech rotors before.
 
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Old Jan 25, 2009 | 01:43 PM
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I called them and they said for this very reason (cracking), they do not warrent any drilled rotors.
 
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Old Jan 25, 2009 | 01:46 PM
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^ that sucks, i already bought them
 
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Old Jan 25, 2009 | 02:43 PM
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They also say that when the drilled holes are all the way to the edge, that this damages the integrity of the rotors, thus causing the above picture^

Anyone heard of Brembo drilled rotors cracking?
 
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Old Jan 26, 2009 | 07:04 PM
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Originally Posted by Solekeeper
Drilled rotors are not "excellent" for track.
I have read this time and time again...
Why do multi-hundred thousand dollar cars like lambos, ferarrsi, porsches, and audi R8's come with drilled rotors then?
 
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Old Jan 26, 2009 | 07:45 PM
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Originally Posted by pattyskin
Why do multi-hundred thousand dollar cars like lambos, ferarrsi, porsches, and audi R8's come with drilled rotors then?
Probably due to the fact they look good and often people buy based on looks alone.
 
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