Just wanted to throw a feeler out and get some forum feedback!

I’m looking at producing my own brake kits due to what i believe is a gap in the market

I’m looking at doing various configurations and set ups for the Mk4 Golf Chassis cars, Octavia, TT, Leon and so on

I’m currently waiting for a bracket that’s being made to fit a 312mm disc to the rear of an RS or R32 as no one does a kit unless you want to pay £700 and then want to pay £400 for replacement discs when they wear out, and even I wouldn’t pay that much money for big brakes on the rear regardless of how small the 256 ones look and how much better they could be!

Combined with this I’m looking at a mounting that will enable users to mount 4 pot callipers on the rear using the OEM solely for the handbrake.

Given the option of four pots all round or say 6 up front and 4 on the rear.

Will possible be looking at a fully floating disc with the same off set as the OE 312mm disc so if users want a floating disc with a standard calliper up front or a floating disc rear with the standard calliper they can.

I will also be doing aircraft grade aluminium brackets for the front to mount Brembo or Porsche callipers instead on the steel ones which you get on eBay, which I’ve got! lol

Just ruins it when you get big discs up front with a nice light alu monoblock calliper and then stick a bit lump of steel next to them to hold them on!

Working with all this I thinking of doing 3 different types of 312mm floating disc the one I’ve already mentioned being exactly the same as the oem disc and able to take the standard calliper

The second one will have a larger bell and a smaller swept area to take a LCR/Brembo or Porsche Boxster calliper so it won’t leave the excess disc like when you fit 4 pots on a normal 312mm disc.

And the third option will be a rear 312mm but set up to take the oem rear calliper from a 256mm disc once again avoiding the ugly un used area of the disc.

Looking for constructive opinions on these ideas guys as im seriously looking at producing them as a business venture!

Just to recap what im proposing to do,

Brackets to fit Porsche LCR/Brembo 4 pots to the front in aluminium

Brackets to fit an OEM 312mm disc to the rear in alu

Brackets to fit a 4 pot calliper to the rear using the OEM calliper solely for the handbrake

3 types or fully floating discs

A. 312mm Floating disc to fit to the front using the standard calliper

B. 312mm Floating disc to fit to the front using a LCR/Porsche 4 pot

C. 312mm Floating disc to fit the rear using the OEM rear calliper

All of these discs will have the standard offset so could be used on either the rear or the front depending on what calliper or brake set up you are using

Will also be looking at doing complete brake packages with callipers lines pads both for front and rear at a fraction of the cost of say some of the Brembo/Tarox kits

This isn’t a for sale page, just a feeler on views of what people think?

I’m going ahead with the rear brackets to fit the 312mm disc on the rear as there is no other decently priced big brake kit out there and ive made a mock up and tried the disc and it work brilliant

But what about the rest?

Go?

Or no go?

I would be interested. Allways fancied the idea of better brakes but never took the plunge purley because of the cost factor.

I would be interested. Allways fancied the idea of better brakes but never took the plunge purley because of the cost factor.

As in?

You think all of it is a good idea?

Or just that you would like big brakes?

i think its a good idea, i just am not sure on the same size rears as fronts, can you explain that to me again, as i havent seen any oe cars with that that i can think of, other than that if it doesnt cause an inbalance why not. Keep it lightweight and offer 2 versions, a budget using oe calipers and a premium kit with billet calipers...

Been honest the only thing i would think is a good idea is front brackets for brembos, which are already available so would need to knock these out at a good price.

fitting 312’s to the rear will upset the brake balance horribly, and i just dont think there is much of a market for floating discs in 312 unless they can be sold at a very competitive cost.

I hope you dont think i am been negative just my opinion.

Been honest the only thing i would think is a good idea is front brackets for brembos, which are already available so would need to knock these out at a good price.

fitting 312’s to the rear will upset the brake balance horribly, and i just dont think there is much of a market for floating discs in 312 unless they can be sold at a very competitive cost.

I hope you dont think i am been negative just my opinion.

Any input is welcome

It doesn’t upset the brake balance at all, it works very very well actually

Gives a nice positive feel when you want to stop rather than the back end lifting, the car has more of a BMW type feel to it!

I think there is a market for floating 312's

Just think of all the people that, like me have 4 pots up front with standard discs and have that horrible wasted area that the pad doesn’t use?

So this way you could have discs with the same offset as standard and you wouldn’t have to spend £700 quid on a Brembo or Tarox kit.

As for cost i think that once they a prototype is done and I’ve trailed them and i sit down with the company that’s making them i think the cost of the parts and the floating discs will be quite reasonable, i mean guys will quite happily pay over £200 for cross drilled or grooved rubbish from eBay!!!

So why not pay for floating discs?

Plus I might, although I don’t really believe in them for fast road/track use be making them drilled and grooved!

Back to this same size disc front and rear and ruining the brake balance!

A Porsche Boxster for example has something like 298mm discs upfront and 299mm discs on the rear and the car weighs about the same as an Octavia although its mid engined!

so what I’m saying is 312 all round isn’t an issue as you’ve got front callipers on the front, which everyone’s you’ve decided to use!

Standard, Porsche Boxster, Cayenne and so on and then on the rear you’ve got the same disc with the standard VRs calliper just moved out to provided more brake torque but its not going to be like having the same brakes all round due to the swept area of the rears is substantially less than the front.

This is the way modern cars are going

The Octavia is under braked at the rear and after trying the 312 set up that’s proved that!

Just look at most modern cars, Audi's, BMW's, Mercedes, in some case the rear discs are actually bigger than the fronts with just a smaller swept area.

What does make a difference and can easily ruin a cars braking performance is when you don’t look at the size of the master in relation to the callipers piston sizes that you are going to use.

For example;

Using Boxster rears on the front of a car are useless and dangerous due to the size of the pistons on the calliper, by using these all you are doing is lessening the braking force.

Or the other way is going for a big 6 pot calliper and the pistons being too many and/or too big and then having too much pedal travel and not having the brakes applied fully!

So there are right and wrongs but by using pye you can work out the surface area of you single pot calliper by using the size, but remember to times it by 2 as in effect a single pot piston is infact a 2 pot and then do the same for the four pot using the piston sizes and that way you can work out what the difference would be in relation to the master.

Anyway i digress lol

All these things that im proposing have been worked out mathematically and not just thrown together.

there is many options available on the market if you spk to the right people

get on the mk4 forum and look up DAVEB this man is the brake god and has tried and tested just about every setup poss and sells kits as cheap as he can make them

good luck though get the price right and you will be onto a winner

With regards to fitting 312s to the rear, you state there is the issue with the back end becoming light under hard braking and that fitting this becomes more positive. Surely the back end still becomes light under hard braking as you have not lowered the brake force at the front of the vehicle which is why the back end becomes light in the first place? By fitting larger rears and increasing the brake force at the rear you will just increase the possibility of locking a rear wheel?

Your statement about the boxster has some many variables that it cannot apply to an Octavia. A boxster is a mid engined rear wheel drive car. The driving force of the vehicle is much further back in the car hence using the brake set up they do. To compare it to something powerful and front wheel drive e.g RS focus this runs 336x30 vented front discs but 302x11 solid discs.

Again I am not trying to rubbish your ideas, just trying to understand what you have based your idea on.

there is many options available on the market if you spk to the right people

get on the mk4 forum and look up DAVEB this man is the brake god and has tried and tested just about every setup poss and sells kits as cheap as he can make them

good luck though get the price right and you will be onto a winner

Yeah ive seen DaveB's work

And he uses a custom bracket with B6 S4 discs which are 300mm and the wrong PCD and the spigot is also the wrong size

Its a lot of faffing around re-PCD ing a set of discs and not having the centre spigot the right size!

With regards to fitting 312s to the rear, you state there is the issue with the back end becoming light under hard braking and that fitting this becomes more positive. Surely the back end still becomes light under hard braking as you have not lowered the brake force at the front of the vehicle which is why the back end becomes light in the first place? By fitting larger rears and increasing the brake force at the rear you will just increase the possibility of locking a rear wheel?

No not at all because a bigger rear brake disc, with the same calliper which provides the same braking force but provides more torque due to moving the standard caliper out!

Your statement about the boxster has some many variables that it cannot apply to an Octavia. A boxster is a mid engined rear wheel drive car. The driving force of the vehicle is much further back in the car hence using the brake set up they do. To compare it to something powerful and front wheel drive e.g RS focus this runs 336x30 vented front discs but 302x11 solid discs.

Yeah as i said i understand that the Boxster is mod engined but weight distribution is not the issue here really.

Im not sure what the Octy is but id imagine the Porsche is smack on 50/50 weight ballence obviously the octy is not!

not sure what you are trying to get at with the ford thing!?

Is it that the rears are solid?

If so thats only a cooling thing, nothing to dop with braking potential.

If you are on about the size difference then thats not really and argument for saying 312 all round is a problem as there are cars with bigger rears than fronts, and like the boxster cars with nearly the same size front and rear.

Take a few modern cars off the top of my head

A BMW 330I fronts 330mm, rears 336mm both vented

A BMW 335i fronts 330mm, rears 348mm both vented

Mk5 Golf R32 fronts 345mm, rears 310mm

Writing on paper aside ive made the brackets and tried them on the car and the 312mm all round work great and another argument for!

Is that there are many companys that make thier own discs in 330mm or slightly smaller for the rear of an Octavia and they have invested more money than i will ever own into it so really im re inventing the wheel really!

eds the rearAgain I am not trying to rubbish your ideas, just trying to understand what you have based your idea on.

Just my opinion, dunno if I'm in a minority, but what's wrong with just leaving the brakes standard & not spending any money?

Mine stop the car fine.

Good luck all the same to the OP, I'm sure there will be a market, as you would have done your research, so I'm not dissing in any way, it's just I don't understand the deal with brake upgrades unless you're gonna track your car

Just my opinion, dunno if I'm in a minority, but what's wrong with just leaving the brakes standard & not spending any money?

Mine stop the car fine.

Good luck all the same to the OP, I'm sure there will be a market, as you would have done your research, so I'm not dissing in any way, it's just I don't understand the deal with brake upgrades unless you're gonna track your car

no worries mate

I used to say that!

Why change things but nothing is as good as it can be!

And as for brake upgrades there is a point makes the whole car feel different.

Its like going out and wearing Tesco jeans compared to a pair of Armani's lol

Thanks for your input anyway, always good for outsiders to get involved to bring things up that perhaps werent thought of!

Cheers

no worries mate

I used to say that!

Why change things but nothing is as good as it can be!

And as for brake upgrades there is a point makes the whole car feel different.

Its like going out and wearing Tesco jeans compared to a pair of Armani's lol

Thanks for your input anyway, always good for outsiders to get involved to bring things up that perhaps werent thought of!

Cheers

It's funny you should mention Tesco...I work at one, I guess if I had a better paid job maybe I'd be splashing out on big brakes

Excellent idea! It's not just Briskoda that will benefit from this, you will likely get business form all the VAG forums. Best of luck!

Thanks

Hope to have some stuff ready soon

Still working on the floating discs

Thanks for your reply Danny, still not sure that i agree but always good to have decent debate without people flying of the handle

Thanks for your reply Danny, still not sure that i agree but always good to have decent debate without people flying of the handle

As BT say

" its good to talk" lol

so what dont you agree with?