Brake upgrade on TT

[StuartMartin]

If, for the sake of argument, when my brakes wear out I was to consider replacing them with a non-OEM solution, what would you guys recommend?

I was thinking, maybe, something along the lines of 6 pots and floating discs.
Are the standard hoses braided or not (not looked that closely)?

Just in case I was to consider such an option, any idea where I might have such a thing done?

[Glenn Mc]

If, for the sake of argument, when my brakes wear out I was to consider replacing them with a non-OEM solution, what would you guys recommend?

I was thinking, maybe, something along the lines of 6 pots and floating discs.
Are the standard hoses braided or not (not looked that closely)?

Just in case I was to consider such an option, any idea where I might have such a thing done?

I've always thought that the standard TT brakes were, not as good as they should be, this is much more apparent when on track.

6 pot would make a big difference, as you are not only getting the extra power, but a significantly larger pad area.

Floating discs would be they way to go also, as they will last 3-4 times longer than OEM discs on track.

And change brake fluid to Castrol SRF.


Not thinking about tracking by any chance are we ????;)

[StuartMartin]

What size discs will fit inside the standard 18" wheels, since I don't want to change wheels.
What floating discs do you reckon - Alcon? Are these road useable as well?

Where do you get them?

[Glenn Mc]

What size discs will fit inside the standard 18" wheels, since I don't want to change wheels.
What floating discs do you reckon - Alcon? Are these road useable as well?

Where do you get them?


I have 350mm, but they are 360mm now, and they don't rattle, if you get the Alcon ones.

Call JZ Machtech, and ask for Steve Mchale, he REALLY knows his onions, and will talk you through them.

Pretty sure you won't have to change your wheels, as lots of GT3 boys are running the 360's on standard 18" rims.
think Guy was running them on his GT2 aswell, and they are same rims on front as tt .


Oh yes, and you want pagid RS 29 pads too:)



G.

[seandudding]

I agree with Glenn, get the GT3 6 pots, with RS29 and either the Brembo or Alcon floating discs..

Fantastic brakes......:)

[SimonSays]

The number of pots is quite irrelevant actually, it's the size of the pad that matters. Obviously, with large pads a 2-pot calliper won't do... A 4-pot calliper in a very strong calliper outperforms a lot of 6-pot callipers
Alcons are great, I used Stoptech a few years back, and found them better than the AP Racing or Alcon solution available at the time.
Just my 2c worth ;)

[DanH]

I agree with Glenn, get the GT3 6 pots, with RS29 and either the Brembo or Alcon floating discs..

Fantastic brakes......:)

Another vote for this setup. Really good braking and no fade.

If this is just for a road car, I'd probably not go for RS29s, they need some heat through them to be effective and they squeal a bit if they don't get used hard on track fairly regularly (and mine squeal on track too at times!). Did have an instructor comment on Wed that they seemed quite noisey (not squeal but rumble) but they don't seem any louder than my ceramics were.

For road usage are the TT brakes not up to scratch then?

[StuartMartin]

For road usage are the TT brakes not up to scratch then?

I think they're OK for road usage. At least at legal UK speeds.

I did notice that when braking from 140 to 0 I found I had to push very hard, and on completely smooth, dry, high grip tarmac it is hard to get to the limit of braking. Maybe I need to just push harder and be more agressive, but I'll know more after Castle Combe.

The main reason for asking is that when they wear out, it seems daft to me to replace the disc and the hub/hat. It justs seems wasteful, so I thought about floating discs. The 144 holes per disc are also irritating. I am not convinced they really make much difference (as per another thread) and I get fed up with them being full of dust all the time.
I am not sure the pedal feels quite as firm as I would like. I am not sure if the hoses are braided, but I would guess not.
If I am to consider using it on a track in the future, then the floating discs are a cheaper solution.
The 6 pots seem to be sensible since the GT3 and GT2 have them, so they must be there for a reason.
The car is quite heavy, so the brakes have to do quite a lot of work. I just wonder about all those holes acting as crack initiation sites.

It is also my plan to upgrade some items when they wear out, rather than just replace, since this way the car will remain current and take advantage of improvements.

Nothing is definite, and I have not formed a full opinion yet.
The only thing more important than accelerating fast and going fast, is stopping fast.

[DanH]

Stuart all your points seem sound. I reckon Glenn's advice to have a chat with Steve Mchale is spot on. Not even sure that new callipers cost that much. Most of the expense of my conversion was the low volume rears to go with the ceramics, but you wouldn't need those, and I'm not sure its worth fitting alcons on the back unless its to dismount ceramics.

p.s. my brakes require a decent shove, but the pedal feels great and the brakes seem unburstable. I've got SRF brakefluid which helps the pedal feel, and again JZM can do that for you. It's pricey but the best fluid.

[356WB]

Another vote for Castrol SRF.
Larger rotors will take longer to build heat in them and will underperform vs. stock rotors in short sessions since they will not reach best temperatures.

With good pads and Castrol oil you are good to go on the 'Ring at full blast (I am not encouraging this!), just make sure you have a proper air bleeding job and clean up the cooling ducts.

[Turborob]

Hi Stuart,i changed over to GT3 six pots,brembos and rs29's a year or two ago.A truly well worthwhile upgrade,rs29's do squeal a fair bit though.
Andy at Weltmeister is looking at changing these to some pads a little less harsh not sure what though.

Rob