Suspension/Wheels/Tires/Brakes

Cross-Drilled Slotted VS Cross-Drilled

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Old Feb 13, 2004 | 11:09 PM
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Cross-Drilled Slotted VS Cross-Drilled

which works better or are they same? currently i have 4 Cross-Drilled rotors and i just got new brake pads so i'm thinking about geting CD-slotted rotors for the front.

thanks guys
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Old Feb 13, 2004 | 11:18 PM
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Im not sure about the crossdrilled and slotted but I have heard that cross-drilled are more likely to stress crack than slotted. Someone confirm this for me.
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Old Feb 14, 2004 | 12:24 AM
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Heard the same. Alot of road racers like the blanks/stocks, or the slotted with a good set of pads.
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Old Feb 14, 2004 | 01:12 AM
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I heard that if you cryogen "freeze" the cross drilled then it shoulded crack under stress, if your rich go for it, Im not so Im going slotted.
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Old Feb 14, 2004 | 03:07 AM
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rynberg's Avatar
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Read here:

https://www.rx7club.com/showthread.p...hreadid=231994

and here:

https://www.rx7club.com/showthread.p...brakes+drilled
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Old Feb 14, 2004 | 10:29 AM
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Originally posted by pito13b
Heard the same. Alot of road racers like the blanks/stocks, or the slotted with a good set of pads.
True
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Old Feb 14, 2004 | 10:32 AM
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Fricken waste of time to drill rotors...


-Ted
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Old Feb 14, 2004 | 01:10 PM
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Not to name drop, but BREMBO (NA) Chief Engineer designed his/my (track centric) FD with slotted rotor all around. Get the feeling his design choice speaks for itself!
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Old Feb 14, 2004 | 02:15 PM
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a lot of racers like blanks since they know cross drilled is just for show!
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Old Feb 14, 2004 | 06:54 PM
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Originally posted by carlos@the-rotary.net
Not to name drop, but BREMBO (NA) Chief Engineer designed his/my (track centric) FD with slotted rotor all around. Get the feeling his design choice speaks for itself!
Carlos, your car is awesome. Nice write up in RX Mag. Yea, I noticed the rotors were slotted. Your CYM must be a blast on the track.
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Old Feb 14, 2004 | 11:38 PM
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cpa7man, Thanks for the respects! Unfortunately, haven't had all that much of a chance to really shake it down due to my heavy cruise schedule this year. There's always next year.

Back to the topic at hand, I fully appreciate the aesthetic appeal of cross drilled rotors. I've also often wonder why an OEM manufacturer with a legacy of braking prowess such as Porsche still uses cross drill rotors in their cars? I hope against hope that it's not just for the looks... perhaps I'm still naive.

That said, I'm sticking to slots and solids.

Last edited by carlos@the-rotary.net; Feb 14, 2004 at 11:42 PM.
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