Front brake upgrade mk4 swb

[Luke]

ok bare with me

transit disk is 70mm offset assuming its a front mounted!!! the merc rear 315 one is 56 mm offset and it is a front mounted one!
if i mount the transit caliper in line with the lug 27mm back this will give me........ bearing in mind i need 35mm narrowed at each side!!!

70-59 = 11 + 27 = 38mm narrowed

perfect (i can fit 3mm shims if i wanted )

now 2 problems - i'd be using a rear disk on the front - now is that ok

and its a merc AMG one - bet it costs £££££££££££££

[Aragorn]

disk should be ok on front

the disks might be available at http://www.speedways.co.uk

[Luke]

yep they are



£99.88 each

[rover]

I would check the 'Brake weights' chart at your local M.O.T Station, its always on display, I personally dont think they are rated anywhere near as much as front ones, dont forget manufacturers only make stuff just to withstand just over the minimum required

Rover.

[Luke]

I would check the 'Brake weights' chart at your local M.O.T Station, its always on display, I personally dont think they are rated anywhere near as much as front ones, dont forget manufacturers only make stuff just to withstand just over the minimum required

Rover.

yeah this was a worry - is there anyone on here who's an mot tester who can check the chart for me motorwise
and cross reference it to a transit front

the car they are off is a merc s class 1999-> w220 s600 saloon

i had a look at one they are a big tank and 5 litre v12 or summat and on them autobahns breaking from 150mph should need good rears

[Luke]

they were £99 for 2

got the price down to £36.90 + vat each

now will they be any good - or are there any 315+ dia 24 or less thickness discs available that are front discs

[Luke]

well the merc rear calipers have a 46mm single piston - and the tranist has a single 57mm (going on the only one with a single piston caliper)
cant get any info on the master cyl yet

[rover]

Dont know if this is any help mate but here is a list of all (all that Apec know anyway) that have around 315mm vented disks..... I'll see what else I can dig up

Part No Diameter O. Height Ctr. Diameter Mountings Manufacturer
DSK 308 311 46.5 107 5 SUZUKI
DSK 320 315 53 62 5 LEXUS
DSK 341 316 80 111 6 NISSAN
DSK 376 312 60 75 5 BMW
DSK 377 312 60 75 5 BMW
DSK 2000 310 82 67 5 MERCEDES
DSK 2001 320 82 67 5 MERCEDES
DSK 2002 311 58 105 6 TOYOTA
DSK 2003 315 52.5 79 5 BMW
DSK 2004 315 52.5 79 5 BMW
DSK 2006 316 77.1 79 5 BMW
DSK 2014 315 76 79 5 BMW
DSK 2016 313 80.2 101 6 ISUZU VAUXHALL
DSK 2017 314 59 68 5 AUDI
DSK 2018 310 47.3 59 5 ALFA ROMEO
DSK 2021 316 46.5 67 5 MERCEDES
DSK 2022 319 70.2 108 6 TOYOTA
DSK 2023 320 82 67 5 MERCEDES
DSK 2030 309 43.1 71 5 PEUGEOT
DSK 2031 312 34 65 5 AUDI SEAT SKODA VOLKSWAGEN
DSK 2076 320 43.5 69 5 MITSUBISHI
DSK 2080 320 60.7 75 5 BMW
DSK 2099 315 59.3 67 5 MERCEDES
DSK 2109 313.5 46 87 6 MITSUBISHI
DSK 2132 312 75 66 5 MERCEDES
DSK 2137 312 46 68 5 AUDI SKODA VOLKSWAGEN
DSK 2149 312 69.5 115 5 TOYOTA
DSK 2151 312 67 106 6 TOYOTA
DSK 2168 312 57 68 5 FORD SEAT VOLKSWAGEN
DSK 2212 312 64.6 67 5 MERCEDES
DSK 2245 320 63.5 75 5 BMW
DSK 2248 317 62 79 5 LAND ROVER
DSK 2250 316 50.2 68 5 VOLVO
DSK 2256 310 77.1 79 5 BMW
DSK 2257 321 59.4 68 5 AUDI
DSK 2275 314 45.2 70 5 VAUXHALL
DSK 2278 314 59.4 68 5 AUDI
DSK 2285 320 46.1 68 5 AUDI
DSK 2338 312 49.7 65 5 AUDI SEAT VOLKSWAGEN



Rover.

[transitgeoff]

try everything other than a proper Ford

[rover]

Well the only 'Ford' ( and I use that term lightly) one in the list is for a 06 Galaxy

Rover.

[transitgeoff]

thats why i said "proper"

[Luke]

Dont know if this is any help mate but here is a list of all (all that Apec know anyway) that have around 315mm vented disks..... I'll see what else I can dig up

Part No Diameter O. Height Ctr. Diameter Mountings Manufacturer
DSK 308 311 46.5 107 5 SUZUKI
DSK 320 315 53 62 5 LEXUS
DSK 341 316 80 111 6 NISSAN
DSK 376 312 60 75 5 BMW
DSK 377 312 60 75 5 BMW
DSK 2000 310 82 67 5 MERCEDES
DSK 2001 320 82 67 5 MERCEDES
DSK 2002 311 58 105 6 TOYOTA
DSK 2003 315 52.5 79 5 BMW
DSK 2004 315 52.5 79 5 BMW
DSK 2006 316 77.1 79 5 BMW
DSK 2014 315 76 79 5 BMW
DSK 2016 313 80.2 101 6 ISUZU VAUXHALL
DSK 2017 314 59 68 5 AUDI
DSK 2018 310 47.3 59 5 ALFA ROMEO
DSK 2021 316 46.5 67 5 MERCEDES
DSK 2022 319 70.2 108 6 TOYOTA
DSK 2023 320 82 67 5 MERCEDES
DSK 2030 309 43.1 71 5 PEUGEOT
DSK 2031 312 34 65 5 AUDI SEAT SKODA VOLKSWAGEN
DSK 2076 320 43.5 69 5 MITSUBISHI
DSK 2080 320 60.7 75 5 BMW
DSK 2099 315 59.3 67 5 MERCEDES
DSK 2109 313.5 46 87 6 MITSUBISHI
DSK 2132 312 75 66 5 MERCEDES
DSK 2137 312 46 68 5 AUDI SKODA VOLKSWAGEN
DSK 2149 312 69.5 115 5 TOYOTA
DSK 2151 312 67 106 6 TOYOTA
DSK 2168 312 57 68 5 FORD SEAT VOLKSWAGEN
DSK 2212 312 64.6 67 5 MERCEDES
DSK 2245 320 63.5 75 5 BMW
DSK 2248 317 62 79 5 LAND ROVER
DSK 2250 316 50.2 68 5 VOLVO
DSK 2256 310 77.1 79 5 BMW
DSK 2257 321 59.4 68 5 AUDI
DSK 2275 314 45.2 70 5 VAUXHALL
DSK 2278 314 59.4 68 5 AUDI
DSK 2285 320 46.1 68 5 AUDI
DSK 2338 312 49.7 65 5 AUDI SEAT VOLKSWAGEN



Rover.

cheers mate
are these all fronts or both? im guessing the one ive highlighted is the merc rear!
Its a pity it doesnt show the thickness but i can cross check them, i'd like to keep the transit calipers if possable.

also if a disk isnt front mounted i could mabe use that - anything similar to the way the transit one is now - just make my new hub to match!

this merc rear one is so perfect - im tempted to ring the manufacturers and ask them - but in this day and age they are likely to say no strait away without even considering

[rover]

They are mixed front and rear, and yet that is the Merc rear one you have been looking at.

The next closest is the Audi FRONT ones...

AUDI
DSK 2017
Vented - Mountings 5
Disc diameter 314.0mm
Disc thickness 30.0mm
Overall height 59.0mm
Centre diameter 68.0mm
Minimum thickness 28.0mm

Model Year F/R/H
A8 94-98 F
A8 Quattro 94-98 F
S6 94-97 F


But The disk thickness is 30mm which I assume is way too big...

Rover.

[Luke]

But The disk thickness is 30mm which I assume is way too big...

yep

unless i can widen the transit caliper work a look but from memory not possible

[motorwise]

I would check the 'Brake weights' chart at your local M.O.T Station, its always on display, I personally dont think they are rated anywhere near as much as front ones, dont forget manufacturers only make stuff just to withstand just over the minimum required

Rover.

as per your PM Luke the brake weights chart wont be a lot of help to you - thats the list of vehicle weights and it's used to calculate the % of effort from the readings taken off the rollers (it's largely irrelevant these days because the computer calculates it)

anyway I had a play today with a few vehicles - transit front effort would be upwards of 600KG effort per wheel - VW transporter van - E class mercedes and VW passat all had rear readings on the footbrake around the 250KG - 260KG of effort mark per wheel

I haven't really read the whole thread ( ) but I hope it helps