liquid cooled brakes

[KamikazeR33]

do any of u guys know much about this system as seen on cars like ferrari f50 etc

[KamikazeR33]

im sure its just not the normal brake fluid system btw guys

[Sydneykid]

Three types;

#1 recycles the brake fluid via a cooler tank, usually filled with ice or a normal cooler

#2 squirts water onto the rotors when brakes applied (hell on the rotors)

#3 recirculates water through special galleries in the brake callipers, uses an electric pump and cooler as in #1

[KamikazeR33]

ahh yup sounds like number 3. was told they make a noise like a pump

make much difference really tho?

[Laurence]

Three types;

#1 recycles the brake fluid via a cooler tank, usually filled with ice or a normal cooler

I was only aware of #3 (#2 I thought nobody would actually do)

#1 would be a nice setup. I would like to see how it all works, I can't quite imagine how you would do it without causing problems by pumping the fluid around.

[INASNT]

I think those trucks which race in their own league use #2 to help the brakes from frying

[Duncan]

#2 is how the formula 1 cars used to do it....and handily enough they would carry 20l of water to throw on the brakes and end up 20kg light, Im pretty sure they changed the regs to wiegh cars after the race after that

[Sydneykid]

I was only aware of #3 (#2 I thought nobody would actually do)

#1 would be a nice setup. I would like to see how it all works, I can't quite imagine how you would do it without causing problems by pumping the fluid around.

#1 is used on Nascars, pretty simple concept. As well as the normal brake line from the master cylinder, they have a one way valve in the calliper, which is closed when pressure is applied (put foot on brake pedal). When pressure is removed (take foot off brake pedal) the valve opens and lets the residual pressure squirt a little of the hot brake fluid into another brake line. Usually it would flow back into the normal brake line and push some fluid from the line back into the master cylinder. This other brake line is connected to a cooler and then back to the top of the master cylinder.

So a little bit of hot fluid from each calliper goes via the cooler back to the master cylinder every time you take you foot off the brakes. This means that after a lap of so, all of the brake fluid has been circulated through the cooler.

This system also lowers the brake fluid temperature in the calliper instantly because it removes some hot fluid, which is replaced by cooler fluid from the brake line next time the brakes are applied.

It is a bitch to set up, if you have any pad knock off there is no residual pressure in the brake lines and you end up with a long brake pedal. So this system needs careful tuning of the one way valve and can not be used if there is any run out on the rotors.

Hope that helps (and makes some sense)

[GTR STI]

Water cooled....you would get more from useing a more modern approach to braking.

Everything in bold below is what should be done to std. braking systems before looking at expensive upgrades. But if you want to spend your money I do have New AP rotors for sale 355x35 ($700pair) and 328x28 ($600pair) look at the other upgrades first though.

Calipers.........exoctic alloys, Ti pistons and numbers of pistons etc.

Rotors...........cooling vane design, slotting etc....diameter/thickness and materials (carbon and or other compositions, diameter and thickness...all represent different acceptable operating heat ranges)...rotors are not just rotors.

PADS.............material composition and opperating heat ranged to suit applications...race, street etc......This is were the costly mistake are made.

BRAKE FLUID...you get what you pay for....different opperating heat range and quality....cheap upgrade for brakes that fade.

BRAKE LINES....another cheap upgrade for brakes that fade...go braided...big difference for the money.

Wheel/Rim choice...size, appertures and design that aid cooling.

Cool air ducting and areo-aided air deflectors on tension rods.

[Sydneykid]

Water cooled....you would get more from useing a more modern approach to braking.

Everything in bold below is what should be done to std. braking systems before looking at expensive upgrades. But if you want to spend your money I do have New AP rotors for sale 355x35 ($700pair) and 328x28 ($600pair) look at the other upgrades first though.

Calipers.........exoctic alloys, Ti pistons and numbers of pistons etc.

Rotors...........cooling vane design, slotting etc....diameter/thickness and materials (carbon and or other compositions, diameter and thickness...all represent different acceptable operating heat ranges)...rotors are not just rotors.

PADS.............material composition and opperating heat ranged to suit applications...race, street etc......This is were the costly mistake are made.

BRAKE FLUID...you get what you pay for....different opperating heat range and quality....cheap upgrade for brakes that fade.

BRAKE LINES....another cheap upgrade for brakes that fade...go braided...big difference for the money.

Wheel/Rim choice...size, appertures and design that aid cooling.

Cool air ducting and areo-aided air deflectors on tension rods.

Don't know about "more modern", whilst all those things are regularly used in competition, so is water cooling. Super Tourers are arguable the most advanced form of sedan racing, ours has twin 4 spot callipers (2 on each wheel) and they have provision for watercooling. The engineering data shows they used watercooling on a number of circuits in England and Europe.

It is an extreme measure though, and very costly.

[Craved]

SK, which super tourer is the one refered to above.. pretty sure i've seen one with twin caliper sets!

[Sydneykid]

SK, which super tourer is the one refered to above.. pretty sure i've seen one with twin caliper sets!

The one in picture below.................

[Roy]

Out of interest, what calipers? Alcon? Tell you what sux, an NA SR20 that makes more power then my car:)

[ylwgtr2]

i had a set of brakes from wayne gardner's tohoku toms toyota JZA80 supra....these were awsome...the disc rotor was 16 inch with 6 titanium pistons magnesium body with a cute little radiator!I got them for my friend who still has them but hasnt fitted them yet...but there awsome!

[Craved]

The one in picture below.................

ahh OK, our works proxy server cuts them out!

[Bax]

It all seems a bit too costly unless your into some serious racing.