got this over the road mate... have a read!
If you haven't read my previous posts I have an 08 Evo X bought about 3-4 months ago only 6200miles on the clock and looks like its been a garage queen all standard.
After a few hundred miles I started to get brake judder, the feeling of warped discs . It got progressively worse and after attempts to give the brakes a good work out it become worse still.
Under normal driving the judder was detectable and when pressing on it got massively worse as the brakes got hot. Even to point of shaking the dash and steering wheel violently and sometimes making it very difficult to turn into a corner.
Obviously I'd been reading all the threads with other Evo X owners with similar brake judder problems but they claimed not to drive hard at all so I didnt really know what to do.
So last week I took the plunge after speaking to Ian @ Carbotech and ordered some XP8 front pads. Straight away after fitting them the judder was much worse under normal driving. Thats good I thought as it does indicate it may well be this mystery pad pickup thing I'd read about. So on with the Carbotech bedding in guide 8 stops, 4 hard, 4 very hard. To my dismay judder was still there, I was more than a little pee'd off at this point so decided to make a proper job of putting some heat in them. A good couple of ton ++ (private road obviously) stops filled my nostrils with the stench that is Carbon Ceramic pad frying. I then just cruised around letting the brake cool for 15min and just parked up for the night still gutted.
In the morning I drove out but the normal driving braking judder had gone! After getting the brakes hot and working them it came back violently DOH! As I did brake after brake I noticed I could push through the judder and it smoothed out. As I trailed the brake pressure off the judder became worse...weird. At this point I was imagining other possibilities for the problem and spoke to Ian again @ Carbotech. I sent him pics of the discs and he was encouraged by them my description and urged me to put more miles on the brakes using them more than normal.
I didnt really believe this mystery pad pickup could make such a violent judder but its turned out to be spot on.
I've put 120miles of abuse on the brakes and the judder is all but gone. Under normal driving I have zero judder, once the brakes are really up to working temps and I trail the brake pressure ie going into a corner I can detect the slightest of vibration. If it stays like this its not any problem at all but I suspect with a few more miles this will go as well.
It really would appear to be the standard Brembo pads then causing the brake judder issues on the Evo X. Even with normal miss daisy driving it would suggest that uneven pad transfer is possible and thrashing the pads doesn't work either. I did notice the std pads looked to be falling apart when I removed them still with tons of meat left on.
As it took a good 100miles of thrashing to clean my discs up with XP8's it would explain why Don Seabrook's brakes didn't respond when he and Ian experimented with there less harsh Bobcat pad over a much smaller mileage.
Big thanks to Ian Carbotech for the help and I'm so relieved my judder problems are behind me. The XP8's are leagues apart from the standard pads in terms of braking performance