Alcon brake kits

[shane@mbtech]

Best bet with the rims is to take a front to a car with your choice of brakes on and try it. Otherwise all a bit of guesswork with so many variables,

This^

I'm sure there are members local to you who would oblige :thumbs:

[BMWZ4MC]

Thanks for the replies chaps. I'll have a think and might well try to find someone in the SE who can volunteer to let me try their BBK for size with my wheels. I have 15mm spacers all round which should help things.

[shane@mbtech]

Thanks for the replies chaps. I'll have a think and might well try to find someone in the SE who can volunteer to let me try their BBK for size with my wheels. I have 15mm spacers all round which should help things.

Any pics of the wheels in question?

[shimmy]

Thanks for the replies chaps. I'll have a think and might well try to find someone in the SE who can volunteer to let me try their BBK for size with my wheels. I have 15mm spacers all round which should help things.

Pop to mine if you want to try them over AP kit.

Just north of St Albans

[plumber vic]

[QUOTE=BMWZ4MC;n554209]Thanks for the replies chaps. I'll have a think and might well try to find someone in the SE who can volunteer to let me try their BBK for size with my wheels. I have 15mm spacers all round which should help things.

Always welcome to pop over J4 M25

[BMWZ4MC]

This is the OEM style 224 wheel that is stock on the Z4M (not my car, just a useful link)

They are 8x18" ET 42 front and 9x18" ET 30 rear. I run these on the track and CSL wheels on the road.

[BMWZ4MC]

I've measured the internal diameter of the wheels - they measure 405mm at the mating face and 445mm at the inner rim. The distance between these two points is 160mm.

Lawsy, with the Alcon kit, what is the distance from the centre of the disc to the largest part of the calliper please (I appreciate you may not have that information :-D )?

[BMWZ4MC]

Pop to mine if you want to try them over AP kit.

Just north of St Albans

Always welcome to pop over J4 M25

Thanks to both of you. I'm overseas with work at the moment but I'll be working in Kent when I'm back in a few weeks. Meanwhile, my Zed is in Buckinghamshire, so either or both would be great cheers!

[shane@mbtech]

I'll get the drawings and post them up

[BMWZ4MC]

That's great, cheers. I suspect a drive to Cheshire will be on the cards soon!

[SamT]

Just to throw my 2 pennyworth into this....I started out with the Alcon CSL Cup brakes on the white M3, but have now converted to AP Pro 5000 with PFC discs and Endless Race pads (the Alcon set up went on my blue CS Yesterday with RS29's)

The reason i switched is that I love the Endless pads, but unfortunately there isn't enough clearance to fit them in the Alcon Callipers as they come with 25mm of meat on, and from memory the Alcons only accept a 17mm Pad....so you end up machining off 8mm of pad material to get them to fit.....being a Yorkshireman this hurt like you wouldn't believe :bigcry: .....Plus Schirmer said i could do one if i didnt convert :-D

The new set up is simply stunning on track, a significant improvement over the alcons with RS29's.....but conversley I agree wholeheartedly with what Lawsy said about the Alcons being alot better for the road. The initial bite from the AP's is brutal....and i mean brutal (so much so that even though I've done a couple of days at the ring on them, i am still all over the place with braking points, yes shimmy, part of my excuse for Monday at Bedford )

So, my advice would be, that if you use your car on the road fit the Alcons (they are 200% better than standard) but if your building an out and out track/race car then go with the AP/PFC/Endless setup....but be prepared to peel your eyebrows off the windscreen :thumbs:

BMWZ4MC ..... I'm in Rye on the Kent/Sussex border, if you wanna pop over and see/ try out both set ups your more than welcome

[Rick H]

Just to throw my 2 pennyworth into this....I started out with the Alcon CSL Cup brakes on the white M3, but have now converted to AP Pro 5000 with PFC discs and Endless Race pads (the Alcon set up went on my blue CS Yesterday with RS29's)

The reason i switched is that I love the Endless pads, but unfortunately there isn't enough clearance to fit them in the Alcon Callipers as they come with 25mm of meat on, and from memory the Alcons only accept a 17mm Pad....so you end up machining off 8mm of pad material to get them to fit.....being a Yorkshireman this hurt like you wouldn't believe :bigcry: .....Plus Schirmer said i could do one if i didnt convert :-D

The new set up is simply stunning on track, a significant improvement over the alcons with RS29's.....but conversley I agree wholeheartedly with what Lawsy said about the Alcons being alot better for the road. The initial bite from the AP's is brutal....and i mean brutal (so much so that even though I've done a couple of days at the ring on them, i am still all over the place with braking points, yes shimmy, part of my excuse for Monday at Bedford )

So, my advice would be, that if you use your car on the road fit the Alcons (they are 200% better than standard) but if your building an out and out track/race car then go with the AP/PFC/Endless setup....but be prepared to peel your eyebrows off the windscreen :thumbs:

BMWZ4MC ..... I'm in Rye on the Kent/Sussex border, if you wanna pop over and see/ try out both set ups your more than welcome

Hi, thanks for this - some good stuff to read there. RS29s - I think the guys with lots of experience on here rate them highly so its all good as far as pads go - so pads aside, what is it with the Alcons that puts them so far beneath the APs for track use?

I have Alcon Cups on and my issue with them is the bite point is low down thus lots of pedal travel - is this what makes them more suitable for road use?

The reason I ask is that a possible solution to shorten pedal travel is residual pressure values (thanks for the heads up on those Mr G!) - so if pedal travel is reduced and both are using RS29s, would the difference on track be as marked?

[shane@mbtech]

Hi, thanks for this - some good stuff to read there. RS29s - I think the guys with lots of experience on here rate them highly so its all good as far as pads go - so pads aside, what is it with the Alcons that puts them so far beneath the APs for track use?

I have Alcon Cups on and my issue with them is the bite point is low down thus lots of pedal travel - is this what makes them more suitable for road use?

The reason I ask is that a possible solution to shorten pedal travel is residual pressure values (thanks for the heads up on those Mr G!) - so if pedal travel is reduced and both are using RS29s, would the difference on track be as marked?

You can't compare ap5000 with Alcon kit.

Sam is rich. Schirmer likes a rich mofo. So Sam has the dogs danglies and I don't blame him. If I could afford them I would have them.

[Rick H]

You can't compare ap5000 with Alcon kit.

Sam is rich. Schirmer likes a rich mofo. So Sam has the dogs danglies and I don't blame him. If I could afford them I would have them.

True enough, but the question stands for "standard" APs

[shane@mbtech]

True enough, but the question stands for "standard" APs

Shimmy ran AP all round at Spa. I ran Alcon all round at Spa.
Same pace. Take from that what you will:thumbs: