Hot brakes.

Post by **dalahare** » 08 Dec 2006 02:12 am

What have people that do drifting or track days done to their cars to combat overheating brakes?

Mine get a little hot just coming down the local hills.

(cameraphone doesn't like nightime shots, the discs was more of an orange colour, the bright spot is flame from the pads.)

The current bendix pads offer reasonable stopping even when this hot, and new fluid has cured the sponginess, but i would like it to be better.

I've heard you might be able to get decent EBC pads that are made to cope with the high heat, and has anyone tried to install some ducting somehow? what about removing the plates behind the discs?

Post by **Chris_C** » 08 Dec 2006 02:22 am

I cooked my brakes with rallying, but that was mainly down to bad technique. I was using the brakes like you would on a normal drive, not hitting them hard for a short time at the last minute. Now I'm being harse whilst rallying, I never overheat the brakes.

I know some of the 360 cup guys are running stock brakes for track, it really mostly is about technique. Other than than, try running some more open alloys to help the cause. My GLT did have vented discs, but I never found what they were from, altough I do have a lead I'm follwing at the moment!

Post by **dalahare** » 08 Dec 2006 04:42 am

They only get that hot coming down hills, on a flat road they are ok.

Basically i just wanted to know if anyone had modded the standard brakes to run cooler, or if anyone has found some decent compund pads for our cars.

Post by **germ** » 08 Dec 2006 12:41 pm

I think you can get drilled and groved black diamond disks combine that with ebc green stuff = the best brakes ever....really!!!

i had this combination on my hyundai accent coupe it was amazing!!!
i am planing to put them on my volvo 340 too.

340 http://www.needforspeed.co.uk/pages/sbv ... 1&User=NFS

360 http://www.needforspeed.co.uk/pages/sbv ... 1&User=NFS

Post by **sven360** » 08 Dec 2006 02:21 pm

Fit some Mintex competition pads-relax you'll never have to worry again

That's been my experience running 171 compound-don't think you can still get that compound but 1144's should be more than adequate.

IMHO any alloy wheel other than Volvo's one that they designed to look like a wheel trim should be sufficient.

Post by **Frits** » 08 Dec 2006 05:47 pm

A friend of me drives the V360cup in holland. He reccomends ferodo 2500 for street use. (He says there are no better for original v300!) They costs 100 euro.

http://www.sandtler.de/katalogangebote/ ... lvo_va.htm

Not the ferodo 3000, they are better, but only brake if they are hot. Absolute dangerous for street use.

He drives also with the original discs, they crack also (drives one day with the discs.

There are uprated discs, but I cant tell you where to order. I have seen them. Looks good, but pretty expensive.

Post by **IvanAE86** » 08 Dec 2006 06:31 pm

The ferodo's are good, cant be bad if a lot of the cup drivers use them (I have a set waiting for my trackcar as well).

I have experience with the Mintex 1144 pads, they are excellent in my opinion, brake well under all circumstances (even cold). I also out-braked a lot of cars running ds2500 pads using mintex, but I cant jump to conclusions, because some of those people may just not know how to drive.
If you want to keep the brakes cooler you can also run some airducts (I used vacuum cleaner tubing) to the brakes and point them at your caliper or disc, this helps stock brakepads hold out much longer.

In your case I'd just get mintex or ferodo, it will be enough I think.

Post by **dalahare** » 08 Dec 2006 06:44 pm

I've never heard of mintex, however a quick google search show them to be affiliated with bendix in some way, from what i can see though the sell higher grade pads, I do know some local shops sell ferodo though, so i'll see if i can find any of them forst though, anyone know part numbers?

Thanks.

Post by **classicswede** » 08 Dec 2006 07:50 pm

Everyone seems to have forgotten to ask which back plate you have. The arly back plates did not have vents - if you have them change them for the vented ones.

Are your discs and pads in good condton. Adisc that has groves worn into it has lower efficiancy and will generate more heat for the same braking effort. Also are the back brakes in good condtion? Again if the effort is low on the rear you are making the front do more work.

I have totaly stock brakes and have no problems even with hard driving.

Post by **Carl** » 08 Dec 2006 08:38 pm

M1144s are good, although I managed to cook a set a couple of years ago which caused some fade. However I reckon with some open alloys (standard mk3 GLT wheels are pretty bad at letting heat escape, but looks like you're sorted on that front), decent discs (just new standard ones, or possibly some grooved/drilled ones - check out www.buypartsby.co.uk - £60 a pair), M1144s and dot 4/5.1 fluid your brakes should be greatly improved.

I'm doing this, plus a new mater cylinder, new shoes, new wheel cylinders, new drums and air ducts for the front. Will hopefully lead to a great improvement. So far just using mk2 GLT alloys and removing the fogs to let more air get to the brakes seems to have helped a lot.

Ages ago I also started looking into some vented discs to use, and I've got a set in the garage which look good on paper, just gotta find time to give them a try.

Post by **dalahare** » 09 Dec 2006 01:27 am

The backing plates are solid, no slots at all, I was just thinking of removing them alltogether, can't really see the harm in doing it? Discs are pretty evenly worn and not too thin, surprisngly good for a car this age.

Post by **blackbox** » 09 Dec 2006 05:31 am

the min thickness for the disc is 11.4 original thickness is 12.7
But vent the back and use a lowe gear going down the hills it will help too

Post by **jtbo** » 09 Dec 2006 05:13 pm

Frits wrote:A friend of me drives the V360cup in holland. He reccomends ferodo 2500 for street use. (He says there are no better for original v300!) They costs 100 euro.

http://www.sandtler.de/katalogangebote/ ... lvo_va.htm

Not the ferodo 3000, they are better, but only brake if they are hot. Absolute dangerous for street use.

He drives also with the original discs, they crack also (drives one day with the discs.

There are uprated discs, but I cant tell you where to order. I have seen them. Looks good, but pretty expensive.

I have ferodo pads, they are good indeed, but with stock alloys brake still overheats, I guess with more open wheel design those might be enough good.

I will build tubes from fog lamp holes to brakes sometime too, should be then good.

Post by **jtbo** » 09 Dec 2006 05:14 pm

dalahare wrote:The backing plates are solid, no slots at all, I was just thinking of removing them alltogether, can't really see the harm in doing it? Discs are pretty evenly worn and not too thin, surprisngly good for a car this age.

I have no these anymore, they have rusted away, I got complaints of them in MOT but I guess it is different in your country.

Post by **ducatievo** » 09 Dec 2006 05:15 pm

When drifting we hardly use the brakes so overheating isn't a problem.