240z Brake Pad Question

[ITZ34]

i really appreciate the help guys. Where does the second inlet come in from the front of the car. I have 1 on each side of the airdam. Do you cut 2 more holes in the airdam?

[pballance]

Dave,

I have a single duct in the face of the air dam per the GCR. It splits into the 2 lines that are then routed to the brakes.
Here is a link to my set up as I found it from the PO.
http://picasaweb.google.com/ITSa240/Zbrakes#

I have replaced the dryer duct and changed a few other minor things but you will get the general idea. My set up makes it interesting when changing rotors. I hope to alter that later this year.

[Tom Donnelly]

You can use other exising holes to from which to duct the brakes. The air dam has a great big hole in the center.

[ITZ34]

Thanks Paul. I was wondering about adding holes because of the rules. Do the 3 lines that Katman used all come from a single inlet?
I see I've got some work to do this weekend

[Tom Donnelly]

Chet's old z, the one that won the ARRC, had 2 ducts on each side of the air dam and 2 ducts attached under the bumper that went through the large center hole in the airdam. Totaling 6 ducts. I have a picture somewhere. The GCR denotes the ducts allowed in the airdam by total size. And the center section isn't really the airdam, its an existing hole. So they (Katman and Chet), had a duct for each of the 3 hoses that ran to the brakes. I don't remember if they ever got protested, or what happened if they did. The airdam ducts didn't go over the total allowed area for the airdam. As I recall. (I could be remembering wrong, and I'll try to find the pics)

Tom

[Tom Donnelly]

Here's one pic. Its hard to see the center ducts but they're there if you look close.
They're under and right by the bumper uprights on each side.

I'll try to find a better pic.

[Tom Donnelly]

Here's John Williams car, only 4 ducts though.

[Tom Donnelly]

Here's my car, although there's room for improvement. I have the clamshell on the rotors and the duct to the caliper. I need to run the 3rd set of ducts for more cooling. No pedal twice at 10 at Road Atlanta a couple of weekends back. The center ducts under the bumper could be bigger. Look back at John's car. My center duct is just to the right of the tow hook under the bumper.

[ITZ34]

Thanks Tom
I've seen pictures of Chet's car before, but didn't think you could legally cut four holes in the airdam.
The other 2 ducts I assume (as shown on John Williams' car) go through a hole you cut in the inner fender. Is that correct?