AP Pads & Rotors

[Graham]

Just wondering where you guys buy your stuff?
I have been quoted £268 for Pagid RS29's
And £490 for AP rotors

Does this sound about right? This is for fronts

[shimmy]

i go to Questmead mostly

last time I bought these were prices with discount;

RS29 E8018 - £188.92 + vat (FEb 2012)
RS29 E1265 - £155.86 + vat (Feb 2012)

AP front Disc £192.41 + vat (Jan 2009)
AP rear Disc £169.83 + vat (FEb 2009)


And Performance Friction discs from Alyn at AS Performance were;

PF356.32.0054.04&03 = £231.13 ea + £10 postage

[northernjim]

how do you acquire the discount shim? threaten the ***train?:119:

[shimmy]

how do you acquire the discount shim? threaten the ***train?:119:


no 'promise' it

[CraigMillwardCroft]

no 'promise' it
:hahaha::hahaha::hahaha:

[Graham]

i go to Questmead mostly

last time I bought these were prices with discount;

RS29 E8018 - £188.92 + vat (FEb 2012)
RS29 E1265 - £155.86 + vat (Feb 2012)

AP front Disc £192.41 + vat (Jan 2009)
AP rear Disc £169.83 + vat (FEb 2009)


And Performance Friction discs from Alyn at AS Performance were;

PF356.32.0054.04&03 = £231.13 ea + £10 postage
What's the difference in those RS29's? Does it depend on the caliper? Mine are 5575's. Or does it mean front/rear?

What would you recommend, AP discs or PF? I have PF on the car at the moment, and they have looked worn for the past 6 months but been absolutely fine! So I have no problem with them, but very little price difference of PF vs AP so what's best?

And questmead says trade only? Or can you just ring them

[CraigMillwardCroft]

What's the difference in those RS29's? Does it depend on the caliper? Mine are 5575's. Or does it mean front/rear?

What would you recommend, AP discs or PF? I have PF on the car at the moment, and they have looked worn for the past 6 months but been absolutely fine! So I have no problem with them, but very little price difference of PF vs AP so what's best?

And questmead says trade only? Or can you just ring them
Just ring them speak to Andy :thumbs:

[shimmy]

What's the difference in those RS29's? Does it depend on the caliper? Mine are 5575's. Or does it mean front/rear?

What would you recommend, AP discs or PF? I have PF on the car at the moment, and they have looked worn for the past 6 months but been absolutely fine! So I have no problem with them, but very little price difference of PF vs AP so what's best?

And questmead says trade only? Or can you just ring them


E8018 are fronts for CP5575
E1903 are fronts for CP5555 (thicker by 1mm)
E1265 are rears

IVe run both AP and PF discs and noticed a marginal life improvement on PF. AP discs do hairline crack early but cointinue to perform. Either imho.

Questmead will serve public.

[billyboysm3]

Graham, had a cheeky feel of your PF discs yesterday, oi oi! and they are the same as mine.

Good till you cannot feel the groove. Probably got 4-6 TD days left.

Ive got RS29 yellows on mine and have great bite.

[shimmy]

mine always go first on the cracks. When the cracks widen and spread to the disc edge, then they open up and make a clicking noise when you brake.

Most important is to check the inside disc face where you cant see it.

I belkeive that the overall wear is only meant to be 2mm over the whole thickness of the vented disc

[Graham]

Cheers Craig
E8018 are fronts for CP5575
E1903 are fronts for CP5555 (thicker by 1mm)
E1265 are rears

IVe run both AP and PF discs and noticed a marginal life improvement on PF. AP discs do hairline crack early but cointinue to perform. Either imho.

Questmead will serve public.
Ah ok makes sense thanks alot! May go for PF then, mine are also hairlined cracked too but I guess that's the joys of performance brakes.
Graham, had a cheeky feel of your PF discs yesterday, oi oi! and they are the same as mine.

Good till you cannot feel the groove. Probably got 4-6 TD days left.

Ive got RS29 yellows on mine and have great bite.
They are getting a bit naughty, the grooves are dissapearing. You reckon mine had that many left? I was under the impression they were pretty dead! I could do without the cost of buying discs but putting pads on old discs is a no no is it not?

That's what I run mate, they were absolutely spot on again as usual yesterday, solid feel from 130mph everytime. I had to come in because I was tiring myself out not because the car felt tired :hahaha:

[billyboysm3]

So anyone know roughly how many TD's PF discs will do?

Shimmy how many have your done?

[shimmy]

So anyone know roughly how many TD's PF discs will do?

Shimmy how many have your done?


My discs have done in track miles;

1700-2000 AP fronts
2000-2100 PF fronts

that excludes all road miles. Effectively at one time it was 15 trackdays (2000 track miles) and 8,000 road miles a year and new discs every winter.

[Graham]

How quick does Questmead stuff come through aswell?

I'm going to take a pic of my discs and see what you all think.

[CraigMillwardCroft]

How quick does Questmead stuff come through aswell?

I'm going to take a pic of my discs and see what you all think.
Next day if ordered early enough :-D

[Graham]

That's good then, got to sort them out before next Thursday :)

[northernjim]

I'm going to take a pic of my discs and see what you all think.

you need one of these really ( if you are a proper geek like me)

http://i453.photobucket.com/albums/qq253/ilikethealps/photo-169.jpg

or just change them when the cracks look like this...

http://i453.photobucket.com/albums/qq253/ilikethealps/rotors_small.jpg

[northernjim]

i go to Questmead mostly

last time I bought these were prices with discount;

RS29 E8018 - £188.92 + vat (FEb 2012)
RS29 E1265 - £155.86 + vat (Feb 2012)

AP front Disc £192.41 + vat (Jan 2009)
AP rear Disc £169.83 + vat (FEb 2009)


And Performance Friction discs from Alyn at AS Performance were;

PF356.32.0054.04&03 = £231.13 ea + £10 postage


how thick are rear pads for AP's then:whistle:

[Graham]

Blimey Jim :hahaha::hahaha::hahaha:

They are nothing like that thankfully. But yeah I suppose a visual inspection is hard to gauge an idea of the condition. I'll have to see if anybody has one of those thingy-ma-jigs (technical term)

[shimmy]

I try to catch them before they get like this!

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/f1613655.jpg

[Graham]

Mine are nowhere near that, they just have the heatcracks in the centre of the disc, have done for 6 months+!

And I have more grooves than that still, so going by your standards my discs have loads left on them lol

[shimmy]

An earlier one


http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/CatherineWedding033.jpg

[Graham]

Considering how much groove you still have left in the disc, I'd say you were unlucky with that one

[shimmy]

Considering how much groove you still have left in the disc, I'd say you were unlucky with that one

Probably a factor of what disc options I was using for both .

[O'Neill]

How low should you let rs29s go before replacing?

[shimmy]

How low should you let rs29s go before replacing?

You can run rs14 down to 2mm as they dont brake up, however rs29 I think should be replaced 4-5mm as the tend to disintegrate below that.

However ive run both down to metal to metal :smokin:

[billyboysm3]

Mine are low, reckon 2mm. So will let you know at weekend/early next week when changing over.

I didn't notice any difference in bite, hopefully discs are alright.

[northernjim]

If you can see that the outside pads are down too 2mm, then you can bet that the inner pads are completely fooked :whistle:

[shimmy]

Mine are low, reckon 2mm. So will let you know at weekend/early next week when changing over.

I didn't notice any difference in bite, hopefully discs are alright.

Def change them as hey will Run out before lunch at Donny, worse case you end up in the litter or maybe there is a worse case again!

[billyboysm3]

Remember rs29 come with 8.5mm on each pad. Think mine have managed 5/6 days, two being wet.

[O'Neill]

You can run rs14 down to 2mm as they dont brake up, however rs29 I think should be replaced 4-5mm as the tend to disintegrate below that.

However ive run both down to metal to metal :smokin:

Was you on 29s at Oulton:hahaha:

I have a set on the car with about 8mm f/r and a worn set with 7mm f/r.

3/4 track days between the two sets ??

[O'Neill]

Remember rs29 come with 8.5mm on each pad. Think mine have managed 5/6 days, two being wet.

12mm each pad on the 5575, 13mm 5555 :whistle:

[shimmy]

12mm each pad on the 5575, 13mm 5555 :whistle:

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/PagidRS8018shape.jpg

[O'Neill]

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/PagidRS8018shape.jpg

That's including backing plate, we're talking pad material :whistle:

[shimmy]

That's including backing plate, we're talking pad material :whistle:

I know.:blalalala:

[Pip1968]

Glad you chimed in there Shimmy. Stop confusing the issue O'Neil and BillyboysM3 :smt021 . 17mm standard or 18mm including the backing plate.

Pip

[shimmy]

Glad you chimed in there Shimmy. Stop confusing the issue O'Neil and BillyboysM3 :smt021 . 17mm standard or 18mm including the backing plate.

Pip


In theory if one has worn discs it wil make more sense to buy E1903 pads as more wear, same price.

[O'Neill]

How many sets of pads do you use to a set of discs shim.

[trackm3]

In theory if one has worn discs it wil make more sense to buy E1903 pads as more wear, same price.

Sadly there no longer the same price now £23 more at my trade price :( .

[shimmy]

How many sets of pads do you use to a set of discs shim.

If you say pads last 600-1000 track miles and discs 1800-2100 track miles I'd say that 3 sets per disc was about right.

[shane@mbtech]

If you say pads last 600-1000 track miles and discs 1800-2100 track miles I'd say that 3 sets per disc was about right.

I don think I get that much from pads, but my discs lasted a long time, im on Alcon discs.

Alcon 365 discs are about 550 inc vat to buy.

[O'Neill]

If you say pads last 600-1000 track miles and discs 1800-2100 track miles I'd say that 3 sets per disc was about right.

Cheers, with that data, should have the rest of the two half sets I have then another set. I don't think my fronts will last another set, they have a good few heat cracks, APs. I'll get you to have a look at Donny to see where you think they are in terms of life left.

[shimmy]

Cheers, with that data, should have the rest of the two half sets I have then another set. I don't think my fronts will last another set, they have a good few heat cracks, APs. I'll get you to have a look at Donny to see where you think they are in terms of life left.

More often than not the inside pad and inside disc go first.

[Graham]

What's best, J-hook or Curly Grooves? I can't find any images of Curly Grooves so I have no idea what they look like, anyone got any pics?

[shimmy]

What's best, J-hook or Curly Grooves? I can't find any images of Curly Grooves so I have no idea what they look like, anyone got any pics?

So you are asking if you should go straight or bent?

Wrong place to ask mate :smokin:

[Graham]

I dunno, from some of the posts I've seen on here it seems like the right place :hahaha::gayfight:

Simon sorted part prices out:

£240 for RS29 Yellows Delivered
£240 per disc for 8 groove pattern
£345 per disc for J hook

Good prices. What do you guys reckon on my discs then, worth keeping them for a while yet?

http://i18.photobucket.com/albums/b112/GrahamVFR/BMW%20M3/Brakes/IMG_4156.jpg

http://i18.photobucket.com/albums/b112/GrahamVFR/BMW%20M3/Brakes/IMG_4157.jpg

http://i18.photobucket.com/albums/b112/GrahamVFR/BMW%20M3/Brakes/IMG_4155.jpg

http://i18.photobucket.com/albums/b112/GrahamVFR/BMW%20M3/Brakes/IMG_4162.jpg

http://i18.photobucket.com/albums/b112/GrahamVFR/BMW%20M3/Brakes/IMG_4164.jpg

http://i18.photobucket.com/albums/b112/GrahamVFR/BMW%20M3/Brakes/IMG_4163.jpg

[shimmy]

I'd say they are at their life's end or very near it.

If you are due another set of new pads, get the discs done now would be my advice as a cracked disc on tracks an be a bit of a risk.

[northernjim]

try knocking that shit out of your grooves with a screwdriver - then you can see how much depth you have left :wink:


32mm discs can be used till they are wafffer thin ,( ideally replace after 1mm wear!) but then they will crack first.

Yours look fairly well worn IMO


don't forget new bolt set to fit to the bells too:beer:

[shimmy]

don't forget new bolt set to fit to the bells too:beer:



Yep, two sets of 12 iirc

[northernjim]

Yep, two sets of 12 iirc

those AP's look in need of a new seal and nipple set too tbh



just be careful when tweaking the nips....;)

[Graham]

I'd say they are at their life's end or very near it.

If you are due another set of new pads, get the discs done now would be my advice as a cracked disc on tracks an be a bit of a risk.
I will get new discs then. Not worth the risk. I can always keep these as spares shouldi ever need them.

Does Simon do the Bell to rotor bolts & seal & nipple set?

Why do they look like they need new ones out of interest? I'd like to get them painted this winter once the trackdays have calmed down is it worth doing then or are they really bad? I can't see what's wrong with them and nobody has mentioned it before now

[shimmy]

I will get new discs then. Not worth the risk. I can always keep these as spares shouldi ever need them.

Does Simon do the Bell to rotor bolts & seal & nipple set?

Why do they look like they need new ones out of interest? I'd like to get them painted this winter once the trackdays have calmed down is it worth doing then or are they really bad? I can't see what's wrong with them and nobody has mentioned it before now

Graham

If you think they are fine, buy new ones and bolts now and use these old ones until they are goosed good and proper. They may last another 2-3 trAckday tbh, they certainly would do another 5000 road miles.

I've certainly use mine a lot longer BUT every time I have swapped them over they have looked x5 worse on close inspection off the car.

With AP you get early crazing of the disc that eventually somewhere on the disc grows to a crack that runs to the edge. On the PF discs the crazing comes much later and when the middle of the disc starts look cracked you know that next the crack will grow to the edge pretty soon.

Questmead do all AP stuff



Ps I wouldn't paint them. :)

[Graham]

Graham

If you think they are fine, buy new ones and bolts now and use these old ones until they are goosed good and proper. They may last another 2-3 trAckday tbh, they certainly would do another 5000 road miles.

I've certainly use mine a lot longer BUT every time I have swapped them over they have looked x5 worse on close inspection off the car.

With AP you get early crazing of the disc that eventually somewhere on the disc grows to a crack that runs to the edge. On the PF discs the crazing comes much later and when the middle of the disc starts look cracked you know that next the crack will grow to the edge pretty soon.

Questmead do all AP stuff



Ps I wouldn't paint them. :)
If I bought new discs & pads I would just fit both at the same time mate and keep the discs as spares. I can see that you use your discs until the bitter end :hahaha:

They are PF discs I believe, and Questmead only sell AP's. I am getting a couple more quotes from other places before going with the Questmead stuff though.

Why wouldn't you paint them?

[shimmy]

.

Why wouldn't you paint them?



The brakes won't work half as well :)

[Graham]

I can't figure out if you are joking or not :bigcry:

[billyboysm3]

Graham, I reckon I'll need new front discs soon. Let me know prices. I'll ping pf a pm for prices.

[shimmy]

had a rear brake grumble at Donny (I knew my pads were on their last legs) and then on the way home i had a knocking which i immediately thought was the discs cracked,

So today I had to get the track rims off and new rear pads so I checked and found cracks in the inside face of both discs, 4 cracks in one side (watch out for the inside face going first)

Luckily had another set of rear AP discs ready so I decided to change them myself. Managed to get the two bolts out and back in and didnt break anything! New set of rear RS29 as well and Competition alloys back on for trip out tomorrow,

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/26E1A875-6BD2-4A26-9513-D224BAE86A0D-2964-000002DA613B1DA9.jpg

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/623739E8-A8D6-4A0B-975B-6EA0E0EC531A-2964-000002D99AB2CC48.jpg

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/FC8F2864-0A95-4E8F-92EC-D12C393D723F-2964-000002D973D02AF0.jpg

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/9B9EBE3D-AC3E-4001-A026-D95EAFA35DC7-2964-000002D97B066844.jpg

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/EA463C5C-9F4F-4945-9199-DC6A7DF423B6-2964-000002D9833ACEF6.jpg

http://i401.photobucket.com/albums/pp97/shimmylasco/CSL/07DC06BB-9BB5-4A60-86B9-096EFBE49109-2964-000002D98A1D2260.jpg

[Mark CSL]

There is at least another 4 trackdays left in them shimmy :-D

[Graham]

That's properly shocking especially seeing as the discs seem fine other than that!

Simon from Questmead sorted it all out in the end, great service and a friendly guy. Brakes felt better than ever at Donington

[shimmy]

That's properly shocking especially seeing as the discs seem fine other than that!

Simon from Questmead sorted it all out in the end, great service and a friendly guy. Brakes felt better than ever at Donington


I have found the rears tend to go before the grooves wear out we're as the front tend to go as the grooves start to disappear.

Front face of both discs look ok, but back face has quite a few big cracks. Heat build up maybe ? Pads were wearing evenly to the metal :)

[O'Neill]

How many sets of rear pads before they cracked.

[Graham]

If you don't have any ducting then I'd say you might wanna give it a go, the back of your brakes are obviously getting too hot. I bought some for the sake of £35 and some time fitting it it'll hopefully keep my brakes cooler and prevent anything like this.

[northernjim]

If you don't have any ducting then I'd say you might wanna give it a go, the back of your brakes are obviously getting too hot. I bought some for the sake of £35 and some time fitting it it'll hopefully keep my brakes cooler and prevent anything like this.

how do you get ducting to your rear discs?

[northernjim]

How many sets of rear pads before they cracked.

and which rear pads? 29's?

[shimmy]

how do you get ducting to your rear discs?

great question

[northernjim]

I have found the rears tend to go before the grooves wear out we're as the front tend to go as the grooves start to disappear.

Front face of both discs look ok, but back face has quite a few big cracks. Heat build up maybe ? Pads were wearing evenly to the metal :)

you need some of these

http://i453.photobucket.com/albums/qq253/ilikethealps/photo-186.jpg

and some of this to monitor things:whistle::smokin:

http://i453.photobucket.com/albums/qq253/ilikethealps/newdiscs008.jpg



#satisfyingmyinnergeek

[Graham]

Sorry didn't realise we were talking about rears, I thought you meant rear pads as in the front inside ones :whistle:

[shimmy]

sorry jim, what am i lookin at ?:)

[outnumbered]

Heat sensitive paint, innit, so you can tell how hot the disc is getting.

[shimmy]

How many sets of rear pads before they cracked.

Those rear AP discs were put on in March 2009, had done 42 track events (inc training days and sprints) plus a whole load of road miles, and I have gone thru 7 sets of rear pads in that time inc ds2500, rs29 and rs15.

[O'Neill]

Those rear AP discs were put on in March 2009, had done 42 track events (inc training days and sprints) plus a whole load of road miles, and I have gone thru 7 sets of rear pads in that time inc ds2500, rs29 and rs15.

Great info:119:, I've another 5 years left on mine then.

[alexk]

Guys, what is the AP Bolt kit part number ?

Thanks

[karbonkid]

Guys, what is the AP Bolt kit part number ?

Thanks

If you mean 12 AP bolts for disc to bells I will know when I'm back within the next hour or two as I have 2 packs sitting in the garage.

[shimmy]

Guys, what is the AP Bolt kit part number ?

Thanks

from my notes

26/5/10
4x disc bolts 12B CP3845-100K12 = 4x £12 plus £5 carriage + vat = £53.82

[alexk]

Thanks guys

[s.mac]

Price today £219 inc vat. plus delivery for rs29 fronts
Demon Tweeks