ewenpg

I have heard that the surface area that slotting and drilling takes away from the surface area used to create the friction force to stop quickly is significant and that the slotting and drilling is only beneficial if there is lot of repeated braking in a short period of time. I disagree but only arriving at this conclusion through thoughts not experience. Any comments?

steveski

Good point. I guess I look at it like this: After I wash my car thoroughly and drive it, the brakes grab much better than before I washed it. I notice a drastic and an immediate increase in braking afterwards. I guess the reason is the washing cleans the rotors (dust, small debris, etc.) thereby increasing the rotors and pads ability to stop

I will go with EBC rotors that are slotted and dimpled. I guess I agree with the theory that the rotors will be cooler and cleaner (from the slots and dimples) and therefore the braking will be improved. When I buy them I will post remarks.

Thermactor

iTrader: (1)

Judging by the bolt pattern holes, those look a LOT like Raybestos RED service grade rotors that got drilled up by a third party..

phy

I ran the stock rotors on my 96 till about 110k. Swapped to the R1's been using them for 15k miles so far, no problems at all. Even took them on a fairly long trip (8 hours, including 2 hours of stop and go). I guess 15k miles for under $200 is worth it so far to me.

19psi

not true. just the opposite in fact. normally on solid rotors, water gets trapped between the pad and the rotor, cuasing longer stopping distances. drilled or slotted rotors give the water soemwhere to go, so that the pad can hit the rotor right away.

RA40

iTrader: (6)

Some good supplemental reading on braking:
http://www.safespeed.org.uk/braking.html

http://www.miata.net/sport/Physics/11-Braking.html

sha4000

iTrader: (1)

ive have those R1 rotors that i purchased off ebay about a year ago on my car for about 2 months with no problems and ive been down to Bmore and DC as well as the NYC traffic.

ewenpg

This was an interesting article!!!!

lspower

you will be fine i drive fairly hard and brake the same im ordering my new set after about 3 years. you will be fine.

Schnitz

iTrader: (5)

Slotted &/or drilled rotors are a waste of money regarding performance. I've spoken to both Stoptech & Baer and they would both never make another drilled or slotted rotor if the demand for them wasn't so high.
ewanpg was correct. They don't 'perform' anywhere near blank discs.

Do.Man

i heard the only thing is that they oxidate or watever after a bit and give it a rusty look. but other than that it is good i guess.

hobojoe

they do but if there zinc coated like mine then no rust and the only rust that does occur is where your pads rub since it takes of the zinc.....but the instant you step on the brakes bye bye rust.

BLKonBLK98

personally i would never run 3rd party drilled rotors. they are just drilled oem replacment type blanks rather than performance designs.

I'mStock

It's sad how few people know this.

Gtask8

These rotors are specifically designed for race cars for a reason. Made to be swapped out after every race, typically not for street machines in the norm.