Breaks :(
 

Just a follow up on the single/twin disk thing I did 3 or 4 races ago, I managed to get a p4 break calliper and decided to go to 1 disk for the weight saving,, many people said "DON'T BE STUPID!" But me being me did it any way. since then I have crashed, pulled out of races coz the breaks wern't working after boiling the fluid and used 3 sets of pads which cost £50 a set! Castle Combe totaly destroyed a new set of pads (which I have still got to pay chaz for... I'll run over and see you first thing in the morning at Pembry, sorry)

So... I'll be going back to the twin disk set up with my old heavy calipers for Pembrey.

Matt #72

p.s. I do listen to everybodys advice, even if I then decide to learn the hard way... Please, Please keep it coming!

Just one suggestion, Use castrol SRF fluid, about £50 a litre but yer disc will be glowing red and the seals on fire long before the fluid gives up.

Never ever had a fluid related problem using it on two wheels or four.

Ray

What master cylinder are you using, 'cos Rattler used a single P4 on his 620 and it seemed to work for him?

Mind you he tended to use his collarbone to stop......... :lol:


PS How much for the P4?

You can have a look at it if you want, but I think it is broken!

Hi, I find your story surprising. I have been running P4's (currently with the Lucas pads in - from Chaz), 916 master cylinder, single disk, standard issue (free) shell brake fluid and had no pro blem with brakes at all. I ran consistently in the top 10 last season and had no brake problems in the rounds that I have attended this year. I have also run Bendix pads and had no issues.
Maybe I'm not going fast enough :-)

Harriet runs a single disk, she is going fast enough. :eek:

Of course going fast could be the secret to not wearing your brakes out!!

Although not as fast as Harriet, I also use a single disc. And we both use Vesrah pads, which are absolutely amazing and are the key to longevity and performance. I am just coming to the end of my first set of pads this season, which have the races at Snetterton, Mallory, Oulton, Cadwell and Castle Combe, together with trackdays at Cadwell, Brands and Rockingham without any issues. They would probably last for Cadwell 2 as well, but I'm scared of them falling out when they get too thin...

I get my Vesrahs from Kurveygirl.com in the States, but Harriet will be able to tell you a UK stockist. The Bendix pads are quite good, but wear out too fast. I used a set per race on the 996.

Harriet also weighs approx half the weight of most of us ....:)

2 Questions Matt.

1/ What disc are you using??

2/ What brake fluid are you using??


Chris:burn:

disk theory ???
 

Brake disks all have various different designs and shapes to suit all different kinds of usage but a theory that i discussed with Ghost when he had simmillar pad usage problems was that the edges on the cut aways on his discs were knife edged and not chamfered, therefore every time the brake was applied, the pad wear was accellorated. it may just be worth going over your disc and using a dremmel with a small grinding stone chamfer all the edges that come into pad contact and see what effect that has on pad life? hope this helps :)