Hi guys, I've written an article on brake ducts for my local tracking club and I'd like to share it with anyone who finds it interesting.

Hope it has some value to the readers & please pardon the amateur write-up as its my first time writing such an article.

The pdf copy has a small table on the summary of benefits.

http://www.tractioncircle.com/index.php?op...ticle&Itemid=53

 

Well written article.

 

Good article... IYO would you say that having ducts on a mainly road going car would be beneficial or wouldn't hurt to have them on incase the back road blast turns in to a prolonged session?

 

Nice article and research to back it up .

 

Great writeup. I can say that brake ducts are one of the most effective solutions for braking issues. If you do the work yourself and have the tools it will cost about $100.

 

Some pictures of my setup. $50 in materials but about 20 hours of labor! S2000's have much more room to work with vs. my McStrut suspension on the BMW. An S2000 should take about 1/2 the time.

Don't go too large on the ducting. 2.5" OD for the ducting is PLENTY big. I made the mistake once of using 3" which didn't work out to well.

 

Thks. Hope it's useful to folks here

 

Thanks I believe a non tracked car won't need ducts. The heat of the track would make discs smoke & brake pads crumble to bits or virtually vaporize so ducts are needed for that sort of temps. We don't see so much rotor cracking here in the tropics & my best guess is due to the fact that the temperature difference of a hot rotor to ambient (which I think increases the chance of cracking) is higher in temperate climates (except in summer maybe) than that of countries in the tropics.

 

Thanks. The "research" (would probably be more like anecdotal findings) is not totally variable free but I tried my best to keep things as accurate as possible.

 

Hi Bryan, thanks for the compliment. The local tracking community doesn't have much of resource to build for stuff like this so I'm hoping to do my part to create a bigger pool of data/findings for the local folks.

The pad, rotor & fluid life are all greatly extended which is all just good money not being wasted. Extra seat time means I get to stay out and track hard to practice. Amateurs never get the kind of time to practice like the pros so every extra min of seat time counts. I'm not sure if the bearing/cv components life will be extended but with the reduced heat, there should be some benefit.

Good point about the OD of ducting, thanks for sharing ur experience. I suppose it has to do with the velocity of the ducted air? I hope my ducting is optimal although anything bigger than 2.5" might rub is space constraint is an issue. I also was reminded that a funnel would be beneficial to potentially increasing duct wind velocity with the pressure build up at the mouth which is why all the individual ductings have their own funnel mouth as per my pic below.