BREMBO BRAKES

[bobbler]

Yeah but mine will end up the same orientation when they are installed and appears to be how they are on the install pictures on the ecs site too (cant tell really well as cant see which piston is in which place.

[boxerdogted]

I have just checked my RS6 calipers and the small piston is the lead piston on each set of pads.(Four pads each caliper).
Also there is a S4 for sale on Pistonheads with 6 Pot AP Racing setup and they also have the small piston as the lead.
HTH.

[bobbler]

Cheers Boxer, so that is perplexing, all ECS setups in that case are wrong given that they send them in this configuration ? Why has this not been discovered before? I dont recall seeing anything else on it throughout my research into which brake setup to buy.

[S4]

Guys Im no Audi wizzzzz... but looking into spec`s and things that I have seen in the past, the larger force should be on the trail...... think back to drum brakes... anyway, larger force (larger piston) on the lead could cause judder as well... I dont know corey, but he sure knows his brembo/porsche sh*t. maybe he will sort us all out some cheap discs to fit the Cayenne cali... as im sure he has a source.

Darren

[MarkB]

I would listen to what Corey has to say. He knows his stuff

[bobbler]

Not saying I am not listening to Corey, I just dont understand why its never been raised before? I done a hell of a lot of reading into the brakes before I decided on a purchase and never encountered anything. Even searching about now I am not turning up anything.
Lets be honest here, I am most certainly not the first person to have a set of ECS brakes am I?

I know S4Woody has ECS as he helped out when I was looking for wheels to fit over them. I am pretty sure he "knows his stuff" too.
Rikrose and Nige too all commented on how great their S4s where with ECS 4s, but dont recall anything about "but you need to turn them around because ECS are crazy"

[boxerdogted]

What do ECS have to say about it. I dont think AP Racing and Audi/Brembo have got it wrong.

[bobbler]

What do ECS have to say about it. I dont think AP Racing and Audi/Brembo have got it wrong.

Have a look at my post earlier on mate. That was the response from ECS when I asked them the same question.

[bobbler]

Stasis looks the same too. http://www.audiworld.com/tech/pics/whee ... t14rtr.jpg

[boxerdogted]

Ask the boys on Audiworld.

[davidhodgkinson]

sorry jim, just caught up with this thread...

souond like your having a bad few days, sound like a bear is a good idea.....

[jimbo1234567]

hi david the cars been on bricks for about 2 weeks now due to this issue and some of my own ineptitude. anyway for anyone who thinks my calipers were on the right way round in the first place please look at the photos on the first page of the worn pads and to me turning them round makes a lot of sense to me. ive just been to munich for a few days which seems to be a very affluent city so while my wife was site seeing i was busy looking at loads of porsches parked on the streets and noticed that that the boxters and other models had the smaller 4 pots on the front the 911s had the 6 pot caliper fitted behind the wheel and the cayanne had the same caliper fitted in front of the wheel. i also noticed that the caliipers are not universal because theres a cut out for the lower link pipe to recess into il post a picture soon . must grumble

[bobbler]

Hey Jimbo, yeah there is a recess for the link pipe but it will fit either way. I just tried mine the other way round (as per Coreys switch the link pipe with the nipples post on page 1) and it when over the other end without no bother at all, no straining or anything, its the same fit as the recessed end.

[bakerdcb]

I've just received a PM from Jim about this and read this thread with some concern. All I can say is what I've already told Jim. The discs were fitted new by South Hereford Audi at 31k when I bought the car and they should have been OEM RS4 discs. As far as I'm aware they've never been changed or altered, certainly not by myself or Keith at Dialynx. Keith did fit the Brembo 6 pots and I've run them with Pagid blacks, which Jim has just taken out and yellows on the track. I've used a couple of sets of yellows doing about 10 track days but the blacks have done all the road miles i did in the car, which was up to when Jim bought it at about 48k IIRC. Personally I never had any issues with the brakes but I did observe uneven pad wear in the yellows with track use. They would be 3mm or so more worn on 1 edge than the other by the time they were due for replacement. I put this down to the real pasting they used to get on the track as the blacks didn't show the same wear characteristics, at least to my observations.

As far as I was concerned they were a very good upgrade on the OEM set up and they served me well for my 3 years of ownership. As for the possibility of Keith fitting them the wrong way round I can't really comment as I wouldn't know enough to say for certain but I know he has upgraded many other RS4s and other fast Audis for that matter and I'm not aware of any issues. There are certainly others on this forum with Dialynx upgrades. I'm not sure where that leaves this discussion but I do hope the issue can be resolved quickly so Jim can get the car back on the road.

[jeffw]

All of the calipers that I have seen (HiSpec, AP, Brembo/RS6 or Porsche) have had the smallest piston leading if they have different size pistons. This is done specifically to reduce the tapering of the pad as it wears. There would be a difference in braking performance if the largest piston was leading but it isn't going to be significant or life threatening as we are only talking a few mm difference. All this will do is wear your pads out quicker and be less effective once the pad is worn. They are a number of calipers out there with equal size pistons which work perfectly well. Certainly worth changing it round to reduce pad wear and get consistent performance across the pad life.