The Definitive Z34 Brake Resource

SE

resipsa are you planning on taking it from the fang vents or undertray?

ResIpsa

Fang vents.

My brake ducts are a modification of ModShack's forced air ducts. I removed the tubing from the air boxes and routed it to the wheel wells.

I imagine you could fit a NACA duct or some other inlet to the undertray but that would start to get complicated. Even in the case of the Nismo nose you could simply drill a couple of holes in the undertray and zip tie the brake tubing on top of the undertray and directly in the air flow.

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SE

I was thinking about this, but I have never seen NACA ducts drawing in air from under the diffusers, just mainly used to help dissipate heat from the engine bay. Anyone care to chime in?

AP - Chris_B

Plus, NACA ducts only work in a laminar air flow field. Without wind tunnel testing (or careful track testing if you now how to do it), there is no way to assume the flow is laminar and not turbulent. Once the flow detaches, NACA ducts just don't work. Spinning wheels and tires are great at messing up air flow!

wishihadnav

im thinking about just buying some TI sheet and cutting my own shims..

theDreamer

With brake cooling is it mostly about just putting fresh air onto the brakes or do you have to worry about pumping air out of the area?

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SE

Fresh air onto the brake disks. You don't really have to worry about pumping air out on this type of scale unless you are running a JGTC/dedicated circuit car and even then I have rarely really seen a setup that evacuates air, just more ducts!

SE

Carbotech and Ferodo brake pads, AP Racing BBK info added to original list

RCZ

did you know what you were getting into when you started this thread?

SE

tjlazer

Someone needs to mass produce and sell a Brake Duct cooling product for us that is easy and effective...

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gpa7pk

I thought Stillen was going to produce a set of brake ducts that are compatible with the standard front facia "fangs".

ChrisSlicks

Hi there, good list so far.

Just thinking you might want to consider adding some approximate wheel fit info to the BBK's as well. That seems to be a very common question that comes up.

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G Fo12ce

DriveLineEric posted these:



580x527.jpg
4000 Series:
42314BLKSL
42314BLKSR
42314XS
42314BLKXS
42315SL
42315SR
42315XS
42315BLKXS



5000 Series:
52314BLKSL
52314BLKSR
52314XS
52314BLKXS

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Scott @ RA

^^ As everything and everyone else... they ALSO are only available for the fronts.


So, after all this time there are now 5 companies that I know of in the world that make (just) a front two piece rotor for the Akebono Sport brakes. (which is much easier than the rear). Yet still none of these companies besides (little old us) Relentless Autosports has put the time, effort, and money into offering a matching rear 2 piece rotor, and none of the other companies even offer a full floating option for their fronts . Not to mention the non-steller quality of material used by most of these companies in everything from the hardware, to the material (iron alloy) used in the casting of the outer rotor piece . I expected better.

I am a little discouraged by this, mainly because with us being a small manufacturer without the luxuries that some of these bigger brake companies have... it is hard to justify the very slight profit margin that we make off of our RA rotors. When we use superior material and still are very competitively priced, if not lower priced than the competition.... I was hoping there would be a worthy front and rear option out there by now other than ours so we can stop making these. The time involved, work involved, and material costs alone are hardly worth it.