garyalanlane
New member
Which brake discs do I need to run 993 big reds on MO30 hubs (front)...?
Big Reds 993 brakes
- Thread starter garyalanlane
- Start date
The OEM with X drilled holes does tend to crack if you track the car pretty hard with aggressive pads. Conversely, the solid / vented GTS one doesn't work as well in my experience to dispel the hot gases between pad and disc. So depending on what you want it for, you might look at finding a slotted/ vented disc. Also don't buy the discs for a 993 as they won't fit your setup. Even though the calipers fit, the hats on the discs are the wrong dimension. There is a company in USA called Frozen Rotors (www.frozenrotors.com) that sell the GTS one with slots and they cryo treat them. Or you can get custom ones made up...but if you only want something for fast road and occasional track days then maybe stick with the solid vented GTS version, though they seem to be pretty expensive these days too.
garyalanlane
New member
Thanks for all your help guys
chrisg
Member
Gary at the risk of asking a stupid question, why do you want to fit big reds ?
Having run both an S2 and now a Turbo S (medium blacks) provided you have good new fluid (AP 600 or similar), braided hoses and good pad material, unless you're running slicks or very very grippy track tyres, I doubt very much that you'll run out of braking capacity.
For discussion ?
Having run both an S2 and now a Turbo S (medium blacks) provided you have good new fluid (AP 600 or similar), braided hoses and good pad material, unless you're running slicks or very very grippy track tyres, I doubt very much that you'll run out of braking capacity.
For discussion ?
Just by the way, Big Reds are not the answer to poor brakes. In fact many people who switch to Big Reds run into some other issues. Most often a longer pedal.
So perhaps you should highlight what issues you're having and what you want to use the car for. If it's just a matter of Bling, then you could just have your stock calipers
painted Red.
So perhaps you should highlight what issues you're having and what you want to use the car for. If it's just a matter of Bling, then you could just have your stock calipers
painted Red.
DivineE
New member
Back when I was 18 someone said to me that the bigger (heavier) brakes you put on a car the slower it will stop but the more times you can stop without them fading. Now with many years of experiencing this affect for myself I think it remains a perfect explanation of why finding a balance is necessary.
So hands up who here has actually cooked a set of M030 brakes? The only bonus I had over standard was a set of drilled and grooved EBC disks and green stuff pads (better than red stuff in my opinion) I went out and tried as hard as any man can around Milton Keynes which anyone who lives there will tell you is a killer on brakes. Tiny stretches of national limit duel carriageway interrupted by roundabouts every 500 yards or so. The obvious game to play is full throttle as early as possible, brake as late as possible and I've found the limits of many a smoking set of brake pads there. On the real killer for smaller brakes M030 brakes will stop you as convincingly from 150mph as they will from 60mph with no fade and no let up in braking force. There is as far as I can see no justifiable reason for bigger brakes than that.
Oh and if you want the perfect proof for how smaller brakes are sharper try and out stop a lux on sliding callipers from 60! Again with EBC set up (they are a local firm to me) my lux would stand on its nose so hard you felt like the back wheels left the ground. I've never had a turbo that could stop like that.
So hands up who here has actually cooked a set of M030 brakes? The only bonus I had over standard was a set of drilled and grooved EBC disks and green stuff pads (better than red stuff in my opinion) I went out and tried as hard as any man can around Milton Keynes which anyone who lives there will tell you is a killer on brakes. Tiny stretches of national limit duel carriageway interrupted by roundabouts every 500 yards or so. The obvious game to play is full throttle as early as possible, brake as late as possible and I've found the limits of many a smoking set of brake pads there. On the real killer for smaller brakes M030 brakes will stop you as convincingly from 150mph as they will from 60mph with no fade and no let up in braking force. There is as far as I can see no justifiable reason for bigger brakes than that.
Oh and if you want the perfect proof for how smaller brakes are sharper try and out stop a lux on sliding callipers from 60! Again with EBC set up (they are a local firm to me) my lux would stand on its nose so hard you felt like the back wheels left the ground. I've never had a turbo that could stop like that.
That explains something I had long felt - that my old Lux seemed to have "better"* brakes than my S2 or Turbo... I had blamed it on the cast iron caliper being more rigid than the aluminium caliper, but your explaination may well be closer to the mark. My normal driving is relatively light on teh brakes - i.e., it may include heavy braking, but it is a one-off thing with plenty of time to cool down. The one time I took teh Turbo around Silverstone (and my lack of ability is probably very significant here) three laps max before I was all out of brakes.
* lets call that "better" brakes for my application then!
* lets call that "better" brakes for my application then!
]
DivineE
New member
Standard turbo brakes you can cook. Took me 5 mins in the 3.2ltr you just didn't realise in that car that you were scrubbing off 50-60mph for each bend rather than 20-30.. soon adds up and the pedal goes wooden first as the brakes cant expel any more heat and then squelch straight to the floor a few bends later! All the brake parts were new but the fluid was local garage cheap stuff.
M030 brakes are a different ball game as to the amount of heat they can absorb. They turn funny colours but that's about all you'll do to them (in my experience anyway).
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