Anyone know of a Phoenix local machine shop where I can my rotors slotted?
Called Baer Brakes and was told there not set up for the Mini yet. And won't be unless there is a big demand.
Bill

 

there are slotted rotors for the mini already im not sure on price though

 

I have seen here in mexico one mechanic that makes slotted rotors with your original ones, I do not know how secure is to do it. I prefer to go with the ones you can purchase in almoust any mini aftermarket stores.

The price for the slotted rotors was here in mexico something around $2500 Pesos like 250 usd, the price as new front slotted rotors.

I hope my info Helps. :smile:

 

Although you might be able to find someone willing to cut the slots on your OEM rotors I would recommend purchasing Power slot rotors. They are engineered as slotted rotors, they use better than OEM materials and the rotor is finished to resist corrosion- while your OEM rotors are prone to rust.

http://www.webbmotorsports.com/suspension.php
Power Slot Rotors
Power Slot rotors are the highest quality OEM replacement rotors available, period. They use the factory discs, not cheaper units manufactured to less than OEM standards. The rotors are slotted, which is by far the preferred method of reducing pad glazing, evacuating boundary layer gasses, and reducing heat. This is much more efficient and durable than a drilled rotor. There have been numerous instances of the drilled rotors developing heat stress cracks hole to hole, and the surface area is reduced significantly on a drilled rotor. If you are asking why Brembo (on Porsches and Ferraris et al) uses drilled rotors - they don't. The Brembo rotors have the cooling holes cast into the rotor when they are made (and yet we still will see stress cracks on track cars). Power Slots are also silver cadmium plated, helping to prevent that unsightly rusted hub look through your high tech wheels.
Price: $249 front, $215 rear
These are much better rotors than drilled rotors that are more prone to stress cracks and failure under hard use.
rear

front

 

 

Slotting rotors is done to aid in heat dissipation and also to help 'vent' the gasses emitted by the pads (and the rotor for that matter) during heavy brake usage. When the brakes become very hot from lots of heavy use, the gasses can build up between the pad and rotor and actually 'float' the pads from the rotors, lessening the brake effectiveness. Any time you can 'smell' hot brakes means they are 'outgassing'. The slots provide an area for the gasses to escape from between the pad and rotor, and also help to clear dust accumulating there as well. The slots needn't be very deep, they just have to be arranged such that there is always one beneath the pads at any given time.

Hope this makes sense!

 

Bill,
I put on the Power Slot rotors two weeks ago and I am happy with them. I did the stage 1 brake kit and added ss brake lines. I do get some brake squeal at medium brake temperatures. I will try them out at Sunday's Auto-X.
Todd

 

 

>>
>>It makes perfect sense. Thank you for explaining. :smile:
>>
>>I'm assuming then that regular rotors do not come slotted, and that you have to pay extra for them? I'm also guessing that because of our fun runs it could be necessary to have them, but regular drivers just commuting wouldn't need something like this? Think I've got the jist of it though.


Exactly. Although our brakes are pretty darn good stock IMO...just lots of dust :smile:

 

 

Thanks for the insight guys
Bill