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Suspension and Chassis Questions about your suspension? Need chassis advice?

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Old 02-16-2002, 09:13 AM   #1
Hg
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Should I get Drilled and Slotted Rotors?

Ok, I found these drilled and slotted rotors in JC Whitney I think it was. I'm gonna have a brake job done soon cause the rear brakes are pretty bad. I think they were around 70$ a piece for the front rotors. They probably won't make a difference in stopping right? Basically, if I'm gonna be doing a brake job anyway, is it worth going ahead and replacing the front rotors with these drilled/slotted ones? Or should the 'if it ain't broke don't fix it' saying fit here? How much would a shop charge to replace the rotors? Thanks.
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Old 02-16-2002, 10:43 AM   #2
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Drilled and slotted rotors are a good upgrade, But not all drilled rotors are the same. Cheap rotors tend to crack around the holes. Then you have a problem! Good rotors, when seasoned correctly, will last moderate abuse. I have had good luck with PowerStop. You can get them from Steve Spohn.
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Old 02-18-2002, 12:39 AM   #3
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I have 5 spoke type wheels and I think they just add a really cool race type look.
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Old 02-18-2002, 04:30 AM   #4
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As stated above, most drilled rotors are just for looks and actually will crack under extreme duty conditions. In general, slotting the rotor is usally a much better way to get better performance and retain good durabillity.
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Old 02-19-2002, 06:29 PM   #5
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no.........waste of money.........formula racing have slotted and cross drilled rotors to dissipate heat..you gonna be doing that kind of braking? think about it...drilling and slotting removes the amount of surface area the rotor will be in contact with the pad......i cant see how that could help.....get yourself some top notch pads leave the stock rotors alone unless they are out of spec i run these pads with drums in the back and my car stops on a dime so to speak http://www.praisedynobrake.com/
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Old 02-20-2002, 06:10 AM   #6
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Slotted rotors help channel the gasses and dust from the pads, which keeps the front wheels from getting dirty so fast.

That and looks are why I bought them. Don't expect any huge performance increase.
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Old 02-20-2002, 06:32 AM   #7
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WASP.. when braking you build gases between the rotor and pads. The harder you brake the more gas that is built and forcing the pads away from the rotor.The holes and slots allow the gas to escape and actually will give you more clamping force. And when seasoned properly you will notice a difference. The fins in the rotor are for dissipating heat. Alot more people use them then Formula racing. Stop by an autocross track one day and take a look.
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Old 02-20-2002, 09:56 AM   #8
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Old 02-20-2002, 11:04 AM   #9
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Take about ten minutes to read this for info on different brake pads and their "outgassing" effects.

http://www.shotimes.com/brakes/survey/brakes3.html
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Old 02-20-2002, 06:24 PM   #10
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no comment................
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Old 02-20-2002, 06:28 PM   #11
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ask praise to send you their test results.........solid rotors won.....do the research for yourself......so your telling me that gases get trapped between your pad and the rotor? while the rotor is turning? enuff to lessen the clamping force? mmmmmmmmm pardon me for being ignorant but if the rotor can turn it would seem to me the gas can escape......
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Old 02-20-2002, 06:28 PM
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