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Discussion Starter · #1 ·
i heard from some autocrossers in San Diego that you can slot rotors using a dremeling tool. can any knowledgable individuals confirm or deny this? is it safe if possible? thanks for any help.
 

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Re: slotting rotors w/ dremel tool???? (trev'sGTI)

No! Don't do it! Doesn't sound like a good idea at all. Drilling into your rotors may cause microscopic cracks & fractures that may grow larger with every heating/cooling cycle during brake use. Eventually the cracks may grow to a point where the structural integrity of the rotor is weakened.......then bad stuff can happen.
Dunno exactly what the manufacturing process involves, but I think the slots/holes are created during the casting/forging/whatever process and not as a final step. Anybody got my back on this one?
 

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Re: slotting rotors w/ dremel tool???? (16vTreeMagnet)

Rotors are spinning fast and having the center of mass of the rotor anywhere but the dead physical center of the rotor will cause you to "have a bad time".
Any work done on rotors should be done on a drill press or better machine... but most rotors are designed to be left intact. Any rotor designed to have holes or slots in them will already have holes or slots in them.
 

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Re: slotting rotors w/ dremel tool???? (Frederf)

Even if you have the rotor completly balanced, the slot will be the weakest part of the rotor. Look out for cracking if you do it.
 

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Re: slotting rotors w/ dremel tool???? (opusdestructo)

quote:[HR][/HR]just take saw and slot your pads. lets built up gas escape, like slotter rotors[HR][/HR]​
i dont think thats such a good idea either...its not the rotors that produce the gases, its the pads...so the face of the pad would still be in contact with the rotor 100% of the time which wouldnt allow the gases to escape like a slotted or drilled rotor would...*i think*
 

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Re: slotting rotors w/ dremel tool???? (Mr Hand)

<sarcasm>I say you do it... but instead of slotting the rotors, write your name on each one with the Dremel so you can ID your car better in case it gets stolen</sarcasm>
 

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Re: slotting rotors w/ dremel tool???? (fat biker)

i have had slotted ATE rotors on 2 of my cars now and they are good and the price isnt bad. They seem to wear fast tho, if you have a little more money i reccomend brembo slotted rotors
 
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