Big Brakes: talk to me

[dandan88]

We stock Revo 380mm brakes and very shortly will have some other brakes to offer too.

Hi oli

An you pm me a price for supply on these please

Cheers

 

[BognorMotors]

Hi oli

An you pm me a price for supply on these please

Cheers

I’m actually out of the country at the minute. If you DM you contact details I’ll get someone from the office to get in touch with some prices.

 

[Power ut]

Went for 6 pots and 355mm rotors / reckon I’ll need 18/19 rims , but with a rs3 in van I need it to stop lol

 

[LukaRS]

RS6 10 piston + 400 mm

 

[dandan88]

RS6 10 piston + 400 mm

View attachment 222381

View attachment 222382

Oh shizz they are fresh!!!

 

[Steeeeve]

RS6 10 piston + 400 mm

View attachment 222381

View attachment 222382

Wow! What wheels are they please, Luca? Did you have to use spacers for clearance?
Thanks
Steeeeve

 

[LukaRS]

AUDI Q7 4L0 5x130 9x21 ET60

spacers 25 mm - change pitch bolt

 

[Steeeeve]

AUDI Q7 4L0 5x130 9x21 ET60

spacers 25 mm - change pitch bolt

Thanks. Very cool!

 

[Steved55]

Does anyone have a tabulation of standard arb diameters please? I've got a t32 and not sure if mine are std or uprated.
Thanks

 

[Pauly]

Just checked the VW parts listings and it shows smaller ones at 22 and 24mm diameter and the bigger ones are 28mm but it doesnt define that against models/van weights

 

[Steved55]

Thanks @Pauly - I guess the h&r are bigger than all of these?

 

[The Bear78]

H&R front ARB 26mm, rear 30mm.
I don't know for certain if they're made of a different material/grade of steel. However, the material and aspects of the shape can affect the stiffness as much as diameter.

 

[Steved55]

That's great info - many thanks

 

[The Bear78]

Oh. And the H&R are blue, which is obviously much stiffer...

a worthwhile upgrade for sure.

 

[davvaer]

Anyone how have any tips of where i can get brackets in stock for Brembo 4-pot to OEM 340 disc? Dont need any brake lines etc. so 290 at VBT is a little pricey :s

 

[Reedspeed46]

Anyone how have any tips of where i can get brackets in stock for Brembo 4-pot to OEM 340 disc? Dont need any brake lines etc. so 290 at VBT is a little pricey :s

Watching with interest....

 

[Skyliner33]

Anyone how have any tips of where i can get brackets in stock for Brembo 4-pot to OEM 340 disc? Dont need any brake lines etc. so 290 at VBT is a little pricey :s

I am sure @BognorMotors might be able to help. If not try SF Tuning.

 

[Skyliner33]

Bigger brakes do control heat better and can grip the disc harder without locking up. These are benefits and although it’s an expensive upgrade worth doing .

View attachment 203408

Hi @CRS Performance, please explain how this is possible - "can grip the disc harder without locking up".

If the standard brakes can supply enough torque to overcome the friction between the tyre and the road then surely that is the maximum force the brakes can without ABS kicking in (or wheels locking). Without increasing the friction between tyre and road (ie to stop it slipping/skidding) and the ABS kicking in then as soon as that same maximum torque is reached then the wheel will skid and ABS kick.

Lets make up some numbers to try to make my point. Lets suppose the OEM brakes overcome the friction of the tyres at say 100Nm of torque. Then surely as soon as the larger disks and callipers reached the limit of 100Nm then the tyre would start to skid. All other things being equal.

I understand that to apply this limiting force of 1000Nm the larger callipers would have to apply a smaller force as the radius of the disk is larger.

I also get the benefits (of the right set up) can improve feel. But also mis-matching the slave pistons in the callipers to the master cylinder can adversely affect pedal travel and hence brake feel (this is the reason the TAR.OX big brake kit was delayed).

Maybe @Nutexa Frictions might have some input into this?

 

[CRS Performance]

Hi @CRS Performance, please explain how this is possible - "can grip the disc harder without locking up".

If the standard brakes can supply enough torque to overcome the friction between the tyre and the road then surely that is the maximum force the brakes can without ABS kicking in (or wheels locking). Without increasing the friction between tyre and road (ie to stop it slipping/skidding) and the ABS kicking in then as soon as that same maximum torque is reached then the wheel will skid and ABS kick.

Lets make up some numbers to try to make my point. Lets suppose the OEM brakes overcome the friction of the tyres at say 100Nm of torque. Then surely as soon as the larger disks and callipers reached the limit of 100Nm then the tyre would start to skid. All other things being equal.

I understand that to apply this limiting force of 1000Nm the larger callipers would have to apply a smaller force as the radius of the disk is larger.

I also get the benefits (of the right set up) can improve feel. But also mis-matching the slave pistons in the callipers to the master cylinder can adversely affect pedal travel and hence brake feel (this is the reason the TAR.OX big brake kit was delayed).

Maybe @Nutexa Frictions might have some input into this?

Ill find time to do this for you

 

[nicktrst]

Half agree and half disagree here , apart from heat control we run bigger diameter discs to be able to grip the disc harder with out locking it up .
I do understand we are actually talking about Transporters and not track cars but Our track car ran full race brakes and we have to replace wheel bearings almost as often as pads due to the increased forces from a bigger calliper and Disc . The bearings suffer from the heat as well because of the increased forces from the brakes and slick tyres .
So I run 405 mm discs on my T 28 and apart from the obvious look they are unbelievable at stopping the van . ABS rarely kicks in unless the road surface is slippy
The Veemann wheels need race valves to work otherwise the valve hits the calliper

View attachment 187358

View attachment 187359

What calipers are those, they look the part!!!!!!