240z Brake Pad Question

[ITZ34]

I've been running the Blues for a long time. Tried Carbotech 10s this weekend on the front (have been running Carbotech rears)because I was having wear issues with the Hawks, but they only lasted 2 qualifying sessions and a 30 minute race. I used to get 2 full weekends on Blues and changed rotors every other set. This season, I only get one weekend now and it's chewing up the rotors. I haven't changed anything on the car, but this is getting ridiculous (and expensive). I'm running full bias to the rear.
I must be doing something wrong. Any help would be appreciated.

Thanks

[pballance]

How much cooling have you got running to the rotors?

Check the piston seal on the calipers. I actually cooked the seal and it was causing a pad to drag.

Just thinking out loud.....

[ITZ34]

I have 1 -3" hose running to the front of each caliper from an opening in the airdam under the bumper . It's attached directly using a modified dustshield.The seals on the caliper are cooked after only a couple of events, so maybe that's the problem. I'd like to get another hose in there but i can't see how with the space constraints.

Thanks

[Mike Mackaman]

I made some epoxy fiberglass composite ducts that allow a 3" hose to blow through the caliper. These drop the caliper temp about 200 degrees at Road Atlanta with a very fast driver, not me! I am working on a duct to split a 3" hose to blow on both sides of the rotor, but other things have kept me from finishing it.

Mike

[dspillrat]

Man,
You gotta get more air to your brakes.... At least 2 ducts, 3 needed to keep things cooler at Road Atlanta......hat on caliper, and 2 to the rotor...... Its not pleasant at pit out on the 10th lap hitting the floor...... Can ya say dirt tracking brakes!!!!!

I gotta get on the track!!!! Any Track!!!

David

[pballance]

Dave, Here is a link to an old thread that has pictures of ductwork.
https://improvedtouring.com...t=22163&page=2

I don't have Katmans's pictures on this machine so I will post them up tomorrow along with Parrish's set up.

Mike, shoot me a pm with your email. I want to talk with you about the ducts you have built. I need an alternative to the caliper hat that I currently have.

[pballance]

Ok, here are the pictures of other racers solutions to Z brake ducting.

[Tom Donnelly]

I must be doing something wrong. Any help would be appreciated.

Thanks

Maybe you're going faster.

Old tires could do that too. Can't stop as well with less sticky tires. If everything else is working and you have sufficient cooling, (you said nothing changed).

Tom