Where to get slotted rotors
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ATE powerslots
most online places carry em now :thumbup:
most online places carry em now :thumbup:
I'd just get the stock rotors, the slotted ones aren't going to do anything for you besides cost more
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also in theory the stock ones will work better since more of the pad is in contact with the rotor surface 
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brakes are over rated.
just pull your hand brake.
just pull your hand brake.
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wait, your hand brake still works?!
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Nah, I dont believe it either:laugh:
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why do you figure that?
sorry you are wrong on this one, the reason slotting is used on rotors is to help expel gases caused from the heat of breaking . basically what is happening is that the pads trap air while braking this air expands and pushes the pad away from the rotor the slotting gives these gasses a path to escape. This causes the brake pad to stay in better contact with the rotor in effect better braking. The only downside is a higher rate of pad wear caused by the slots
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i thought newer brake pads didnt create that gas.....?
or at least not enough of it to separate the pad from the disc; unless under extreme braking conditions, e.g. racing.
normal daily driving shouldn't heat up the brakes enough to cause them to fail...
so imo, slotted/drilled aren't worth the cost of quicker pad wear, weaker discs and more expensive discs.
Parts Geek, I always use these guys if I don't get parts local. Great prices too.
http://www.partsgeek.com/catalog/1984/volkswagen/rabbit/brake/brake_rotor_set.html
http://www.partsgeek.com/catalog/1984/volkswagen/rabbit/brake/brake_rotor_set.html
The slotted rotors are 99% cosmetic. Hypothetically, in high heat / racing types of situations (with appropriate racing pads) you can get some pad glazing where the surface of the pad becomes slippery. The slot wipes away that glazed surface. If there were any gas trapped under the pad (pad material is porous, and doesn't sit flat on the rotor, so it's unlikely), the pushback from the tiny amount of gas would be nothing compared to the hydraulic pressure of the braking system.
The downside to the slots, as mentioned, is that you reduce the pad contact area on the rotor. Also, machining out the slots removes thermal mass, and you need the thermal mass to absorb heat in hard stops. Even those few grams count.
One plus side of the slots is that it should interrupt the higher frequency nodes, making it less likely to have high frequency squeal. The pads, backplates and calipers might still squeal, but not the rotor. But it might all be overshadowed by the grinding sound of the slots anyway.
I designed brakes for 9 years.
The downside to the slots, as mentioned, is that you reduce the pad contact area on the rotor. Also, machining out the slots removes thermal mass, and you need the thermal mass to absorb heat in hard stops. Even those few grams count.
One plus side of the slots is that it should interrupt the higher frequency nodes, making it less likely to have high frequency squeal. The pads, backplates and calipers might still squeal, but not the rotor. But it might all be overshadowed by the grinding sound of the slots anyway.
I designed brakes for 9 years.
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RE
What boycott?
What boycott?
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