I also find the Ultimax pads fine for every day road use but for hard driving and track use they give up pretty early on, the Greenstuff pads are a good fast road pad and work from first cold application of the brakes and have a slightly higher operating temperature envelope before they cook themselves, supposedly they produce less brake dust but I cant say I ever noticed. At more than twice the price of the OEM mirroring spec of the Ultimax items it is a bit questionable if they are worth the extra dosh for every day use.
I recently fitted Mintex front pads and have been very happy with them so far.
I like dimple drilled and radially grooved discs and have had them on MX5s in the past, some folk say they are noisier and pointles but I think they are a good idea and a lot better at dissipating hot gasses and clearing water from the disc/pads when driving in wet conditions.
I have recently changed from Mintex on the front and some unknown brand on the rear of my MkI to EBC Greenstuff and I am absolutely delighted with them. They bedded in reasonably quickly and I now have brilliant, progressive and dependable braking!
IMHO, they are certainly worth the price I paid from MX Parts.
I put ultimax pads in my 323F and was pleased with them. I have since put a set in the front of my 1991 Mk1 and while they work well they do seem to be producing lots of black dust, which is a bit of a pain. Probable notice as the MX5 is kept cleaner than the 323F.
I have the Ebc dimpled and grooved discs with green stuff pads. The green stuf are just great and on track I’m the last of the late brakers and they stop me on a sixpence with little fade. Recomended by me anyway
very small working temperature range and lack of feel would be my biggest complaints, persoanally i’d take oem mintex or similar over ultimax’s every time, on the flipside the red and yellowstuff used on other cars have always been very good so i’m not having a dig at ebc on the whole but ultimax pads are not the best available for the price they are at imho!
Have run green stuff with standard Nipparts discs for 15,000 miles over 18 months and they have been great, currently about half worn with the disks in very good order so will probably give them another 4 to 5 thou before slotting in a new set of greens with those disks, ie two sets of pads to a set of disks is a good ratio. Also using steel braided flex hoses to the calipers, Dont forget these as they give a consistant pedal in all conditions and well worth the investment, probably the strongest part of any brake performance gain`s all round
I have fitted Ultramax to a couple of road cars. They work fine for general use but I found them really dirty. I hate dirty wheels and they were black all the time with Utramax. Yes i;m sad i know.
When you brake, all the energy goes into the brakes and something has to give. Pads that don’t dust put the wear into the disc and those that do dust are wearing the pad. Ultimax wear the pad, it creates dust which is fine if you have wheel trims, but on the plus side they are very cheap. You could have 3 sets for the price of Green Stuff and 4 sets for Yellow.
Pads that will wear the discs more will last longer and dust less, but you will end up replacing the discs more frequently. Also they tend not to have great initial bite as they like to be warm.
However with a set of decent EBC discs at £40 and a fitting time of about 10 minutes per side you are not talking telephone numbers whichever way you go. A set of MK1 Green Stuff and EBC discs should cost you about £82.