Cool running

DDracomoderator09 Oct 2008, 08:46

I have come across something interesting, don't know whether it is true, I saw that a racer is using clutch fluied in his radiator, apparently this makes the car run super cool, say if you used half water and half fluied....

Those that knows more than me....what do you think?

GGary5709 Oct 2008, 08:50

Clutch/brake fuild in the radiator, hmmm, na not for me thanks. Brake fuild makes rubber swell so would hate to see the inside of the hoses after 10 000km.

RReeceZ09 Oct 2008, 09:11

make a container to hold dry ice right at your intercooler 😂 Feel the rhythm... feel the ride... 😂

DDrillergy09 Oct 2008, 10:07

Better to put halls or airwaves in your airbox!!!! 😂 😂

DDracomoderator09 Oct 2008, 10:26

Gary...I am sure we could make up pipes that could handel this....

So it seems it is quite a big secret and very unknown.....a local racer uses this....his car runs relieble 10's all the time.....apperently the engine runs so cool it causes oil leaks because the operating temp stays to low.....he uses only clutch fluied....thats why I think if I use fluied and water 1/2-1/2....it will have all the benifets with no oil leaks.

I am sceptic myself....but thinking about it logically.....clutch and brake fluied is made to handel higher temps......

XXavier09 Oct 2008, 10:30

why wud it leak oil with low temp?

oil cold = thick
oil warm = thin

that soesnt add up 2 me seriosly

DDracomoderator09 Oct 2008, 10:58

The oil heats up but the water ways runs cooler... making the engin run colder, because the engine runs cooler all gasgets do not expand with the heat needed and leaks may accur because the oil is thin and gasgets not heated up and expanded.....that is why it is not a good idea to drive a car hard when it was just started, because the gasgets has not set out the pressure may cause oil leaks and obviously in our cars the hot turbo meeting with cold oil spells desaster.

GGary5709 Oct 2008, 11:05

Put brake fuild in your hands and then run your hands under water... what happens?? It is an exothermic reaction.

If it is on a race car then it could be that he is draining the car after each race.

DDracomoderator09 Oct 2008, 11:12

It is an exothermic reaction

Don't have a clue what that means....will google....I suppose the 2 don't react so good together....what will it react good with....anti-freeze?

exploring here......

DDracomoderator09 Oct 2008, 11:19

Okay...searched.....an exothermic reaction happens when you mix water and accids....is brake fluid an accid?

The other info I searched says that brake fluid absorbs water.....but selicone based brake or clutch fluids does not.....that might be the answer.....

GGuy09 Oct 2008, 11:20

Clutch/brake fluid is hygroscopic, it absorbs water. Even a small amount of water in brake fluid reduces the boiling point by quite an amount, that is why its good to flush your brake fluid every 2 years at least.

A cooling system full of brake fluid would be very messy I'd imagine, any leak will destroy your paintwork.

I don't know what the specific heat capacity of brake fluid is but I'd be surprised if its any better than water.

Anyway running an engine too cool is bad for it. A cold engine has excessive running clearances, the ecu will overfuel coz it thinks its in the warmup cycle and anyway the hotter an engine can run the more thermally efficient it is. Thats why modern engines actually run hotter than older ones, they're designed that way.

DDrillergy09 Oct 2008, 11:21

Try clorine tablets, they always fun.

But seriously, a portable cryogenic de-ionising tank in the boot would work.

GGuy09 Oct 2008, 11:29

Drillergy wrote:

Try clorine tablets, they always fun.

But seriously, a portable cryogenic de-ionising tank in the boot would work.

Um yeah if you wanna blow yourself up or burn your self something nasty.

They demonstrated this in our first year chemistry explosives lecture.
Dry chlorine powder and added a tiny amount brake fluid to it. The reaction was instantaneous and explosive to say the least. It was almost as violent as the thermite reaction, but much quicker to initiate.

Lets just say I went home after that and made sure there was no chlorine anywhere in the garage.

DDracomoderator09 Oct 2008, 11:38

The boiling point of dot 4 is about 270 deg F....

If selicone bases fluid mixes with water will it still react the same when it gets on your paint.

Lets say a mix of 20/80

GGary5709 Oct 2008, 11:38

It was almost as violent as the thermite reaction

Ah Thermite, I what a cool toy, I miss playing and exploding stuff 😢 .

XXavier09 Oct 2008, 11:40

try 1/3 hth
1\3 milk
1\3 brake bluid

awsome smoke bom

u cough ur self 2 death tjo

GGuy09 Oct 2008, 11:47

Draco wrote:

The boiling point of dot 4 is about 270 deg F....

If selicone bases fluid mixes with water will it still react the same when it gets on your paint.

Lets say a mix of 20/80

Dot 5 or silicone brake fluid is the only brake fluid that doesn't damage paint. Don't confuse Dot 5 and Dot 5.1.

Dot 5 is silicone, not a great brake fluid but used by hotrod guys who don't want to risk their paintjobs at all. Dot 5 is slightly compressible, will give a more spongy brake pedal feel. I remember reading somewhere that water and silicone brake fluid don't mix at all, kinda like oil and water.

Dot 5.1 is normal, paint eating brake fluid, with a higher boiling point than lower grades.

DDracomoderator09 Oct 2008, 11:52

The question is can dot 5 brake fluid then help with running your motor colder....remember....moderation.....not cold enough to let your engine too cold....just enough for good operation in our climate....we all worry about heat.....

GGuy09 Oct 2008, 12:20

In order for it to collect heat better from the motor and give it off better to the radiator it would have to have a higher specific heat capacity than water.

Water has a specific heat capacity of 4187 J/kg/C
Ethylene glycol, a component of brake fluid, only has a specific heat capacity of 2324 J/kg/C, but has a boiling point of 197 degC

HHennie Marais09 Oct 2008, 13:19

rather use the correct stuff

redline waterwetter.

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