Mud-club

Vehicle & Technical => Defender => Topic started by: Range Rover Blues on April 06, 2007, 14:54:50

Title: Big brakes
Post by: Range Rover Blues on April 06, 2007, 14:54:50
Ok, you guys must know this one.

I was told that the callipers from a V8 CSW were about the biggest that LR ever fitted and that they ran on vented disks from the RRC.

Given that a fully loaded 110/130 on 750s must take a bit of stopping I'd guess that these would also be pretty good callipers.

Now it looks like the disks are all the same vented rotor as used on the RRC.

So which callipers are the biggest?  I want to make my RRC stop (and my mates Disco 1 stop too) as well as possible.

Are the Defender callipers all single circuit?

Do they use a bigger piston?

Am I barking up the wrong tree :?

I'm thinking of fitting slotted/vented disks to the LSE, that's a case of me driving too fast but on Blue I've got 235/85R16s and it doesn't pull up too well, especially when some nob pulls out in front of me (read underneath  :shock: ) and Tim has a similar problem.

Any advice?
Title: Big brakes
Post by: mmgemini on April 06, 2007, 19:49:26
I have a 110 station wagon. Built be Special Vehicles. It has vented discs on the front and solid disc on the rears. I have no idea of the diameter of the discs. What I can tell you is that on 7.50 tyres and overloaded to 3,400kg it stops very well.

All Defenders by EEC law must have a dual braking system. However my callipers are single line. There's a difference between single line and dual circuit.

I can, if I remember, see what part numbers are on the pad box. Would that help ?
Title: Big brakes
Post by: Range Rover Blues on April 06, 2007, 19:58:13
It would definitley give me a start yes.

Looking at the Range Rover/defender callipers I have they are the same thing, pitons and castings except that the defender ones are single circuit.  They were only off a 90 though :?

Defenders have to be dual circuit eh, that's good news for me :)
Title: Big brakes
Post by: Xtremeteam on April 06, 2007, 20:08:30
i have a few pairs of spanking new calipers which AFAIK are the big ones BUT they aint vented,if you can get the spacers then you can build up a pair of big vented calipers
Title: Big brakes
Post by: Range Rover Blues on April 06, 2007, 20:26:27
Cool, I thought you would know TBH.

Are they dual circuit like gemini said? that would be the muts if they were.

Best let me know how much they owe you though.
Title: Big brakes
Post by: Xtremeteam on April 06, 2007, 20:28:41
there are single pipe calipers
all defenders/90/110's are single pipe.
£100 + postage for yourself
Title: Big brakes
Post by: Range Rover Blues on April 06, 2007, 20:30:51
ok, PM me your paypal details again and work out the postage :wink:
Title: Big brakes
Post by: Xtremeteam on April 06, 2007, 20:35:07
Quote from: "Range Rover Blues"
ok, PM me your paypal details again and work out the postage :wink:

Anything else you might want?

V8 plugs
Military screened ignition lead set
110 wolf/snatch chassis
10 spline front shafts & big Cvs
Title: Big brakes
Post by: Range Rover Blues on April 06, 2007, 20:38:07
Screened lead set, is it waterproof?

Big CVs, tell me more :wink:
Title: Big brakes
Post by: Xtremeteam on April 06, 2007, 21:29:44
Quote from: "Range Rover Blues"
Screened lead set, is it waterproof?

Big CVs, tell me more :wink:


it was bought to go on my dads 110 as he had a screened set for his rangie many moons ago,
craddocks advertise them as fully waterproof kits & from what ive had experiance off they are,

The Cvs are out of military axles From the early ish motors,can do the shafts & Cvs for £70,
Diff,shafts & cvs for £130
Title: Big brakes
Post by: Range Rover Blues on April 07, 2007, 02:05:05
Don't need the diffs as I've got lockers, that's why I'm sticking with 10 spline.

Think I may have to pass for now though as I don't have a bottomless pit of cash.

Unless there is something I have that you need, but I doubt that somehow :( .
Title: Big brakes
Post by: mmgemini on April 07, 2007, 15:58:56
Plese don't get confused by the wording here.
Dual circuit brakes are required by EEC law. They can use a single line or a double line pipe.
The Range Rover Classic and the Discovery both use two brake pipes to the front calliper. This is because one pair of calliper pistons sre for the front brakes only. The second set of pistons witrh the back callipers are the other part of the "dual" system.

The Defender on the other hand only had one brake pipe to the front calliper.
The front brakes are one system. The rear brakes the other half of the dual system.

By the way. Neither of those systems are fully fail safe.

Pad number.
The pads are by Apec PAD 591.
Sorry but you'll need to cross reference the number.

A final though.
The coefficient of friction has nothing to do with surface area.  :twisted:
Title: Big brakes
Post by: unknownmanxman on April 08, 2007, 14:39:19
When i wanted vented discs for the front of my 200tdi 90, i just bought vented disks and calipers to suit and they went straight on... Also i had lots of phonecalls from paddocks tellingmme they wouldnt!!
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