Can anyone tell me the purpose of the guard over the brake rotors? The metal one that comes from around the back and covers them.
It's there to reduce the likelihood of anything getting caught up on the spinning rotor disc(the tyre and rim serve the same purpose on the outside of the disc. It also serves as a deflector to prevent cold water from splashing on a red hot brake disc and causing it to crack. Unfortunately, sometimes a small rock or piece of gravel can get trapped in between the disc and the shield, and can destroy the braking surface of the disc by machining a deep groove into it.:zlove::zlove:
Mine needed very little reshaping to accommodate 324mm rotors(just some gentle prying with a flat tyre lever), and moved about 5mm.:zlove::zlove:
Its also a legal thing required from the manufacturers Im pretty sure. The guard stops foreign matter from jamming between the pad and the disc which could potentially hinder braking performance, especially if you consider the fun of only one brake working at the front, it would pull you off the road under an emergency braking situation.
heat retention?? dont some people remove them to allow a quicker heat dissipation? i found out that overheating brakes are quite an issue on the track Havent removed mine yet but had thought about it... not sure now
Track should be ok. Shouldn't be much lose debris floating around there. Other wise drill some small holes in it. Kinda like a sieve. That way it will still do it's job but not stop airflow.
Happened in the pits Heard the tell tale ping, Didn't give it enough time to cool down, cut short the cool down lap won't do that again.
hey Ron hows that brake cooling system working for you, looks primitive I mean simple set up, but does it work???
Hey Jorge Haven't tried it at the track yet, but no reason it wont work, simple is usually the best, couple of examples. Kerry Bailys Zed Steve Millen's famous #75 Zed
Wiz, where do you direct the air towards? Is the outlet of the pipe facing the middle section of the rotor where the cooling veins are? Looks like a mod even I could do and I've got an old vacuum cleaner hose that looks exactly like the hose you're using so could even use that if it is suitable. Would I need to do anything to stop it picking up water if I'm drving on a wet road?
Air is directed To the centre of the rotor, the rotors i'm running are 324mm curved veins which pull the air from the centre to the outside, so in effect it's pulling cool air through the rotor from the centre. wouldn't use old vacuum cleaner hose as it will melt on you, you need special heat resistant hose, purchased mine from UAS. wouldn't worry about the little bit of water your liable to get through the hose, wouldn't be any more than would splash up onto the rotor from wet roads. Vbevan, red hose is running to all four brakes, also to oil coolers on steves Zed, had a good look over it when i was at the Stillen complex
Brake cooling We tested the air deflectors on a R34 GTT at Wakefield a few weeks ago, 8 C ambient and put on one side only and tested a few times and 250c on side with out and 100c side with it. Tests were done when it came off the track shooting an infra red gun on same part of the rotor testing left to right. Also it is important to remove factory heat shields whether you have ducting of air deflectors or not.
