RamAir, please take the time to look around and see what people run for rotors here. I think you'll find that you're the only one with drilled rotors. The reasons for this are stated above (a couple posts up).

It'* not in my job description, but I feel it'* my responsibility to insure the safety of our members, as well as the mechanical reliability of their cars. Brakes are a huge issue for me. Please consider changing the rotors before summer.

I concurr with Bill. When I replaced my rotors (with RSM'* from Domestic Performance), I did a lot of research on the matter. I knew that I would not go drilled for the aforementioned reasons. Even after that--and as a result of my research, I was a bit trepidatious about the slotted rotors. I asked Ty MANY questions before I committed to purchasing them. I also spoke with Bill--the first and only person running them at the time--what his take was on the slotted rotors. He had taken them up to 'speed' and back down 'quickly' several times and experienced no break fade or problems. I was the second person to purchase these rotors from Ty--and am very happy with them a year (or so) later. I do not take my car into the triple digits (only did it once by accident--and had no problems backing down with my brakes) and experience better braking than with my stock rotors. I would only recommend a quality slotted rotor or an OEM rotor from GM. Do not go with drilled or the inferior quality standard style aftermarket rotors as they will warp. Safety over (ricer) fad or monetary concerns.

do they make a rear disc brake conversion on 1993 ssei for drum brakes anywhere

Send a PM to Speedguy here, or post this in the Vendor'* forum. Or visit www.domesticperformance.com Ty is the owner, and he'* Speedguy here. If anyone can help, he can.

I have been using my POWERSTOP crossdrilled rotor and with extreme911 brakes for over 2 years and not a trace of wear and tear on my rotors or pads have yet to see. No brake fad or warpage. We at Covington Buick/Pontiac have tested both sloted and crossdrilled rotor on our Grand Prix and Bonnevilles aswell as Grand Ams. Both have been a great beneficial factor over stock. We yet to see any warpage or stress cracks.
we did experienced on a few Grand Prix owners with slotted brakes once they wore, the slots worked as if they were the stock disc and left grooves on the pads due to the slots cutting into them. Take sometime and see the wear and tear on these and find out from experience.

We did at Covington Pontiac!

After almost a year, my pads and rotors are in pristine condition. My reccomendation, and Tim'* as well, (not to mention many experts on the subject) is to stay away from crossdrilled rotors. They're of no performance advantage whatsoever on a street car. The reduce your surface area. Not much more. Stopping distances are usually increased with them when compared to rotors that are only slotted.

Okay to Prove that all brake rotors are not the same!

Here is a website of a proven fact and test on the STREET and I say STREET not race or any other means of the Powerstop Brakes with the extreme 911 brake pads on Off road vehicles to prove that weight also is a factor since we do drive heavy weight bonne'*.
Plus can you say military specs on the rotors your have! Thats my proof!
check the website and review them carefully!

Just to prove that us here at Pontiac do the same tests on our own vehicles! with the same brakes as well as brembos and all others such as RMS.

http://www.off-road.com/isuzu/womb_brakes.html

Also if you truly want the best brakes much better then slotted or crossdrilled, we at Pontiac contacted commandautomotive the producers of Police interceptor brakes which us a process of crygonetics. These are truly the best of the best and are second to none. Trust me on these brakes, we to at Pontiac are now considering these on our own vehicles over slotted or crossdrilled rotors.

http://www.commandautomotive.com/index.html

Ram Air, I seriously doubt GM or Pontiac would endorse or even recognize a dealership playing around with 'performance' brakes. I'm not entirely sure what your affiliation is with Pontiac, but I think that if I contacted Pontiac and asked their opinion on the subject, it might clear the air a bit. Do you work for a dealership in MA? Which one? I need to have all my facts straight if I'm going to ask Pontiac Division for a statement regarding this. That being said, I'll state the following:

Crossdrilled rotors weaken the rotor. The holes provide stress points. Do the holes increase performance for a street application? No. They can't help the pads outgas, as BOTH SIDES of the rotor are covered by pads at the same time. In addition, what happens to steel if it'* cooled to quickly? It gets brittle. Brittle causes stresscracks. If you're running at the track every weekend, or you run on Sundays with Nascar, use them. But keep in mind, they throw their rotors in the trash after every race. If you care about cosmetics, and want to hang with the ricers that use them, be my guest.

You've stated your opinion, and I've stated mine with a very respected opinion (or ten) backing me. H body cars are a totally different animal when it comes to braking. If you want to continue to use them, that'* your decision. I would rather suggest to the rest of the members here that they stay away from crossdrilled rotors entirely.

We're going to have to 'agree to disagree' on this one. My responsibilities to this forum prevent me from ignoring this topic, as I care about the safety of our members, and the cars they drive.

I guess you didnt take a look at the test or even the websites I showed you!

plus on the fact that the gases are dispensed out from the sides of the vent holes of the rotors not the drilled holes. Please review all websites and test to prove the fact. If you have any proven facts, please show us here at this bonneville club. We all would love to see proven facts.

If you want the best brakes go to ttp://www.commandautomotive.com/index.html These are for Police Interceptors not rice carts and who is talking rice here. We at Covington Pontiac dont drive rice! we are on a low carb diet!