[rdorman]

The E compound seems to be a reasonable choice from the CF standpoint. Realize that its CF is about .04 below the D compound so if you balance is set perfect right now, unchaged you will have a little more rear bias and also your peddle effort will be slightly higher. Some where on the order of about five pounds. With out knowing your specifics, this is just a guess.

The E compound is just a step up from the D. The D has a higher CF until 750 degrees (it starts downward begining at 600). From 750 to 1000, that is where the E compound pad will work better. From there it is the J pad. But with a peak CF of .58, that is a LOT more than you have now. About 14% more or 14% reduction in pressure required for the front. With rear bias being completely open you can not route more pressure to the rear.

Please let me know what you have to do with your bias settings with the new pads. It tell a lot!

The E compound is good to 1000 degrees. I know I keep mentioning the paint and strips but while you are in there swapping pads you might as well! Temp smart paint for the rotors and pads and the indicator strip kit for the calipers. Total of $46.00 from True Choice.

True Choice has all the cool stuff. It doesn't hurt that they are 15 minutes from my house either!

Remember I have a set of J pads that I am not using. Just way to darn dusty for my mainly street use. But keep in mind my comments about the balance and these pads CF. They GREATLY reduced peddle effort over the tan pads. To the tune of almost 20 pounds of peddle pressure. That is a bunch! I ordered them through Summit (or was it Jegs?)

If my description of the ducting wasn't understandable let me know and I will try and find some pictures. Depending on what kind of track racing you do try looking at some the full bodied race cars and you will see what I mean. I often see them where the ducts have to go under some of the suspension pieces. Just don't blow the air on one side of the rotor because the rotor will adopt a bowl shape because one side is hotter than the other! The air coming up through the rotor as described will help with the caliper.

Now go kick some butt!

Rick

When I get around to it, I am going to put all this stuff in a spread sheet and pass it out to everyone. These kind of question seem to come up a lot. If you have a data acquisition equipment I could even come up with a estimate of maximum brake temperatures.