weird thought in head someone help me out

[DierwulfBL]

well about a month ago i was checking my brakes to see if it was time to slap the metallic pads on, it wasnt time. I did however notice that my rotors were grooved quite badly, but also the brake pad had the exact same groove pattern so that the grooves interlocked. I was thinking seeing how the grooves lined up wouldnt that in essence give the brake rotor more surface area to help stop? like if you straightened out a ^v^v^v^ youd get -------------------. Using the same logic if this was the case and it worked, why dont they make brake rotors with some beast grooves with matching pads? or am i completely lost in my head thinking this? help me out im sure theres a reason this is bad/wouldnt work.

[.RJ]

Uh, no.

[Mike]

Uh, no.

Explain then.

[.RJ]

Stress risers

[Mike]

Stress risers

Even if I were sober I don't think I'd know what that means.

[.RJ]

Alrighty then.

Basically the rotors would stress crack under heat faster than maeng's mom goes down on a friday night.

Aside from the hassle of dealing with matched sets, wear rates (pads wear faster than rotors do), etc, etc. There's just no benefit, the car would not stop any faster.

[DierwulfBL]

good shot RJ, thanks for breakin it down.....kinda.........

[.RJ]

Want me to talk about metal structure and dislocations too?

[Ryan T]

Want me to talk about metal structure and dislocations too?

Oh please, keep us in suspense no longer!!!

[DierwulfBL]

actually sure, the more info the better

[DierwulfBL]

then i can design the new and improved wavy rotor with same wear pads/rotors and lots and lots of surface area, and made out of new alloys that resist heat cracking :-D

[DierwulfBL]

and hell, even if it doesnt work people will buy it, like the electric blow fans marketed as "turbochargers" ROFL people bought those :-D for some odd strange reason, but bought them nonetheless!

[.RJ]

then i can design the new and improved wavy rotor with same wear pads/rotors and lots and lots of surface area, and made out of new alloys that resist heat cracking :-D

You mean titanium?

Or carbon/ceramic composites?

Oh,and wavy rotors - junk.

[ScottyB]

actually my mountain bike has this brake setup. the part of the rim that the rubber brake pads hit has about 20 or 30 fine grooves around it. apparently this helps clear debris, and i think it probably helps with surface area. but, this is on a bike, with rubber pads and a huge rim as a brake....a car is a whole different story.

[Maengelito]

a bike rim will probably see 1/50th of the temps a car brake rotor will see. the difference in mass between the heaviest bicycle and the lightest car will still be very drastic. if you have an uneven distribution of mass, then the rotor will cool at uneven rates, which means serious warpage.

[.RJ]

actually my mountain bike has this brake setup.... apparently this helps clear debris

Slotted rotors will acheive the same goal.

[PDenbigh]

I've seen sticks thrown through a Mt. Bike wheel do an amazing job at stopping the thing. Why don't we just get some wheels with nice spaces between teh spoke and throw a piece of rebar though it, at the 1 mark before a turn. That'll stop ya! (yes I'm kidding).

[.RJ]

Rebar, BFH and duct tape are usually a good solution

[DierwulfBL]

dont knock the duct tape, it happens to match silver streak mica halfway nicely and holds sideskirts on nicely