Brake Discs

jakblade

Active member
 Lincolnshire
Question:.....Grooved, drilled, both or just plain vented.? Probably just a matter of personal preference but wanted to gauge some replies.. :)

I'm looking at M Tec or Brembo at the mo.
 
I'm using the MTEC discs drilled and grooved (thanks Mac) and the braking force is excellent and no real issue with pad wear.

The change was forced by a seized calliper last week but the improvements are ten fold over the standard.

:thumbsup:
 
M tec grooved and red stuff pads , lasted half a lap of the ring before going Mia ! Previous owner changed the fluid 6 months before .
I drove around the problem but to be honest they are a bit crap , I've never had the problem before and I'm not an aggressive driver braking wise , anything but to be honest , most passengers comment on the lack of braking on a lap .
I'll try yellows and maybe different discs next time , already changed to blue fluid that I know works .
 
I went for grooved / dimpled with yellowstuff pads. Coupled these with braided lines and SRF fluid.

Had to emergency stop recently and my head nearly came off.
 
DRILLED or GROOVED or BOTH won't increase general brake feel or stopping performance at all.
That said iv got Brembo Drilled disks, bought mainly for vanity / looks.

Having grooves or holes drilled into any of your brake parts is actually counterintuitive, as a disk full of holes means that there's less surface area for the brake pads to grab and stop the car (unless your increasing the disk size). The purpose of drilled holes on disks is to aid high usage on a track (high speeds, heavy braking.... Repeat repeat repeat). If your repeatedly braking to the max from very hight speeds so much heat builds up and standard solid brakes fade with in minutes. Grooves do the same but the theory is they aid removing dirt/dust build up between the pad and the disk. That said if you watch motor sport, they always use Drilled not Grooved disks.

Day to day driving normal brakes suffice and in the need for a emergency stop do the job to the highest standard.
Your standard factory brakes are made to easily stop a car traveling around 150mph on a Autobahn and will do through out there life if well maintained. Having good tires also accounts for a lot the braking performance.
:thumbsup:
 
MTec Grooved Discs, Red Stuff pads, goodridge braided lines and 5.1 brake fluid. Good setup on the whole,much better than previously. Only issue is that discs have rusted a bit where not in contact with the pads so would suggest paying the extra for the rust protector sealant Mtec offer for a little extra. I went for grooved discs only as had heard issues with noise on drilled and grooved. No noise from grooved only :thumbsup:
 
Nelly Welly said:
I'm using the MTEC discs drilled and grooved (thanks Mac) and the braking force is excellent and no real issue with pad wear.

The change was forced by a seized calliper last week but the improvements are ten fold over the standard.

:thumbsup:
Good to hear you finally fitted them. My 8 pots with massive grooved disc are excellent!!
 
I saw a post earlier about a company called gsf. I had a look and with the discount code used on the post I can get Brembo's (don't think they are drilled or grooved) for less than £60. thought that was a really good deal.. :thumbsup:

It's good to get a discussion with some top info going...
 
Having fitted discs, calliper irons, callipers and pads. The grooved and drilled is clearly a winner in my book. MTEC it's the result on slightly larger than standard on my 2.2 but colossal improvement. :D :thumbsup:
 
I went for good quality plain discs rather than drilled or grooved. As has been mentioned above - the idea of grooved discs is that they remove dirt and grime from the pads as you brake so in theory you get more consistent brake feel, however this also increases pad wear - great if you track it a lot but not so good for day to day driving. Drilled discs should increase heat loss, however they are susceptible to cracking - especially if you buy cheap drilled discs. I had a long chat to a guy at Questmead who supply racing teams etc and he recommended Mintex discs and pads. I do a couple of track days per year but use the car mainly for day to day driving and so that worked out the best option for me.

Of course grooved and drilled discs look much cooler, which is why a lot of people buy them. I was originally considering a set of dimpled and grooved discs because they looked awesome but decided against it in the end.
 
Went with Brembo solid discs recently - good reputation and UV coated hubs. The part numbers are front 09.7701.11 and rear 09.9869.81. Would have gone MTEC too, but they don't do solid discs (at least not for the E85).
 
Even cheap Pagid pads are a huge step up in performance and a massive decrease in Dust.
 
I have the drilled and grooved, think next time I'll go just drilled, I find the grooved aspect just noisy under heavy braking and you can feel it vibration

Look great though :D
 
I went with cross-drilled discs from BavAuto, with Akebono Euro Ceramic pads.
All fit well, and feel is very much the same as OEM. Nice cosmetic upgrade.
 
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