sloted and cross drilled brembro

minime>  Lets see if you can follow this train of thought:

bigger rotors = more surface area
more surface area = more mass
more mass = better braking performance
better braking performance = BIG BRAKE UPGRADE

now, lets look at the second picture:

drilling a SOLID rotor = less mass
less mass = less surface area
less surface area = less braking performance

NOW.  When you look at a true-exotic car, the rotors are not DRILLED, they are cast WITH the holes in them.  See, everytime you DRILL a rotor, you reduce the rotors strength.  Even though the rotor will run cooler, its prone to cracking - PERIOD.  This isnt the case with big-brake Brembo/Baer/Etc upgrades, because they are CAST and tempered.

Me?  I've worked on plenty of brake jobs to know.  I've tossed out a very fair share of cross-drilled rotors, I dont need to OWN them to understand.. I've worked on them.  SO, unless you shell out for an exotic big brake upgrade, you've got a rotor that doesnt perform as well as a solid or slotted rotor.

- Mike


</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from minime686 on 10:32 am on Jan. 24, 2002
less mass less stoping power.....where did you hear this. more mass is just more inertia making it more difficult to stop the brake from spinning. obviously theyre not prone to crack because all the best automotive manufactures use drilled rotors in theyre cars. mercedes, ferrari, lamborghini. unless you have drilled rotors and they cracked i wouldnt accuse them of doing so.</td></tr></table><span id='postcolor'>