Sean that is interesting to know
Might try them next, where do you get them from?
Does anyone know the biggest rear discs that can be fitted to an S2 without any modifications?
In my opinion Pagids are poo once you start pressing on. I use Performance Friction 01 compound front and rear on AP 295 disks with SRF in my race car and have never ever had any fade issues at all. I tried various Pagid compounds before going to PF pads and none of them were a patch on the Performance Friction pads.
I have also read on hear that paople think you have to change SRF every couple of months. That is also not true. I bleed my brakes and change the fluid at the start of each year and that is it. They never fade and the last lap of the last year is as good as the first.
A set of front pads and disks will last about 18 months, the rears about 24 months.
Just my 2p’s worth.
One more point about Pagids ( in my opinion ) and that is they are dead when about half worn and WILL increase the OMG feeling very quick.
I had a very soft pedal one time and no amount of bleeding improved it, changed front pads and solid pedal again.
This happened a few times and always when the Pagids are just half worn. I think after that they cant get rid of the heat exceot into the backing plate and then into the … etc
PF 01 for me !
You can buy from performance friction direct
Thanks, I will have a look, didn’t think I would need to upgrade again so quickly after fitting the big brake kit
Their website is a bit shocking, do you just ring them?
Yeah, give them a call.
Does anyone know the biggest rear discs that can be fitted to an S2 without any modifications?
You can get the 290mm AP disc to fit under the standard S2 sliding caliper (just). Ironically the heat dissipating ability of the AP 290 disc is apparently better than the AP 295 (according to AP that is)
Sean that is interesting to know
Might try them next, where do you get them from?Does anyone know the biggest rear discs that can be fitted to an S2 without any modifications?
I’ll put some prices up later if you want?
Does anyone know the biggest rear discs that can be fitted to an S2 without any modifications?
You can get the 290mm AP disc to fit under the standard S2 sliding caliper (just). Ironically the heat dissipating ability of the AP 290 disc is apparently better than the AP 295 (according to AP that is)
I will look into how much these are and probably move to performance friction pads as well.
to be confirmed but as a guide front PF01s should be approx �95
to be confirmed but as a guide front PF01s should be approx �95
Are these for the 4 pot AP’s? If not can you get a price for them?
I’ll collate a full list before publishing.
Thanks
Seems a bit odd that you had a problem at the end of the staight? Surely the brakes should have had a rest by then, and the problem would have been more likely after a series of stops? Wondering if the brakes had started binding in some way and hence heating while heading down the straight?
I ran with std disks calipers and RS14s (although with SRF) until recently and haven’t had any problems, even at Donnington, which I’d say was significantly harder on the brakes than Snetterton.
Erm…get it at the end of the straight because thats when you brake?! lol. Only joking. You must remember braking is absorbing enerygy, which is mvv, so a slight increase in v (speed has a big increase in the amount of energy to be absorbed.
I think its also important to note that fade and fluid boiling are too different concepts (but both caused by too much heat!). Fluid boiling is just that, the fluid fails because it gets too hot (or more likely that there is moisture in it which brings down the boiling point significantly). Once it has boiled once it needs changing. Better/new fluid and extra cooling/ducting (and possibly bigger discs) will help this.
Pad fade is when the pads overheat, and the gases that are given off cause the pad to aquaplane accross the surface of the disc, hence why some discs have dimples/grooves/holes in them to expell the gases (as well as have some cooling effect). Prob need some higher spec pads in this case, or bigger discs/extra cooling/ducting which will help remove some of the unwanted heat in the system.
I would also try to get rid of any braking problems without increasing the size of the disc - do this as a last resort, since it increases unsprung weight dramatically, unless of course the bigger dia. discs are fancy alloy belled jobs
Jonny
Well all that made sense, new fluid for me. Ans shiny new rear disc and pads all round as soon as funds allow.
Performance Friction pads are now available