brakes are here!

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Anonymous

Guest
Thanks mate!

The missus would have shot me if I'd needed new rims aswell! :oops:

Dunc
 
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AJ4

Guest
Got my Wilwood 280mm's today, and am well impressed. The build quality is excellent, I don't know how anybody can say they are a 'cheap' upgrade though.... :D

Only slightly dissapointed that they didn't come with grooved discs ( I thought they did but they are plain vented ) but its still a huge hunk of metal.
 

Mr GTiR

New Member
Ross said:
Only slightly dissapointed that they didn't come with grooved discs ( I thought they did but they are plain vented ) but its still a huge hunk of metal.
racing disc's don't need groves. also, x drilling disc's short the life of the disc's as they will crack.

This does not matter on a 'race' car as they are changed after every race and they don't care how much they spend on the stuff.

just my 2pence worth :p
 
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AJ4

Guest
yeah bud, your right. I was just hoping they were lighter with grooves rather than heavier without grooves. Can't wait to fit them anyway :D
 

geetee

Active Member
Grooves are added to help release the gases produced by the pads vapourising.

Dents or holes also help break up the vapours - but as mentioned above sometimes this can cause the discs to be more susceptible to cracking. Pesumably, this is a design / manufacturing problem..... if the holes are radiused sufficiently they shouldn't cause the discs to crack.

These gases are the main part of what causes 'brake fade', the pads end up running on the vapours rather than being in contact with the disc itself - a bit like tyres aquaplaning on a wet road - the pads effectively start "vapourplaning". This is obviously a direct result of how hot ur brakes get.

The less organic material in ur pads the less vapour they will produce.

In theory, bigger discs shouldn't run as hot (as there is a bigger mass of metal to heat up and a larger surface area to dissipate the heat) so you shouldn't get as much vapourisation.

Disc grooves also help in preventing glazing of ur pads.

Grooves are a good thing for helping shift these gases, but do reduce the surface area of the disc for braking and will also increase pad wear and brake noise.

Horses for courses I guess.

Cheers
GeeTee 8)
 
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