luke19790_3

any mk3 mondeo caliper, can pick them up for £15 a caliper.

just the front. Need a spacer, but you can make one or guy on ebay sells them for £16 with the bolts

don't know about the master cylinder, i've binned the standard setup.

ranzrs

how much difference has it made 2 stopping?

luke19790_3

don't know yet, still in bits.

but should be better, i replaced all the lines and copper with braided and split the brakes between the front and rear.

ranzrs

are you doing a rear caliper conversion 2?

luke19790_3

yep cossie 2wd setup

ranzrs

so you've got mondos on the front and cossys on the back?

luke19790_3

yep, the fronts use 300mm st170 discs. need to shave the caliper a little if you want 15's

ranzrs

hmmm, i suppose thats he most cost effective way of uprating the brakes

how come you didnt choose to put 4 pots all the way around?

luke19790_3

cost and my car doesn't weigh much.

the st170 setup is bigger then the escort cosworth setup.

ranzrs

isit oh right mmmmmmmm i may have to do that myself

luke19790_3

ST170 uses a 300mm disc think the others are 283mm

ranzrs

so i need a 300mm dics st170's and mk3 mondeo calipers and a spacer ( front)

and rear is 2 pot cosworth system

mentalasanything

Dont forget guys, bigger doesn't necessarily mean better. Yes it's cheaper to use mondeo callipers and a spacer on 300mm disks but is it better? Has anyone done a comparison in calculation of brake pad surface area, effective radius and braking Coeficient between the two setups?

I'm not saying I have an opinion but I don't have the facts.

Lee

ranzrs

try to be honest id think the cosworth 1 would be better, just because so many people do it, the mondeos r sooooooo much cheaper, but then again i dont have the facts either would be nice to knw

mentalasanything

I don't think that because more people do it it must be better, it sounds easier to do the cossie set up in the OP but I am tempted to know if the Mondeo/ST170 setup is actually better/more efficient. It's certainly cheaper, the pads alone must be half the price!

I'll see what I can dig out on the calculations side.

Lee

luke19790_3

cost was the main reason, then the fact the calipers are newer and better condition.

but i think you can use mk2 V6 mondeo calipers which are the same has the escort cossie calipers

mentalasanything

You are certainly right on cost!

From what I can find Mondeo V6 callipers use the same pads as the cossie 4x4 callipers so that's a good indication that they're similar. Another thing I've found is that some 2.0 Mondeo's use the same pad. But 1.8 and some 2.0 seem to be smaller.

Basing our effective radius calculation on the following:

Disc Effective radius = disc usable inside radius + disc usable outside radius / 4

The Mondeo setup with the larger calliper and 300mm ST170 discs would be more efficient. If Thermal dynamics and friction material were assumed to be the same.

The issue I guess is adaptor plate procurement and wheel clearance. My 4x4 callipers are about 5-8mm from the inside of my RST alloys on the 283mm discs.

I think it's time you did a how-to Luke!

Lee

luke19790_3

you need the mk3 mondeo caliper, the 1.8,2.0 and v6 use the same caliper.

they will fit under 15's with a little work to the caliper. was covered in Fast ford last month

will be fitting some pads soon so i will take some pictures.

mentalasanything

How much can you safely take off the calliper to fit it under 15's though? I'm assuming a lot needs to come off if mine only just fit

Lee

luke19790_3

i'm on 16's but will mod mine so i can run the standard alloys.

Cameron

is there any chance of rehosting the pictures to this guide?

mentalasanything

It's funny you should ask mate and very coincidental! As I dragged my ass out of bed this morning I remembered I had not re-hosted these pics! I changed the registrar for my domain last week and I need to transfer the content.

I'll get it done ASAP

Lee

mentalasanything

How does that look?

Lee

Cameron

Lovely mate cheers for that will save me some hassle

Ryoishikawa

iTrader: (3)

Do you need to drill your front hubs to 12mm for the cosworth coversion.

mentalasanything

Not for the Cossie 4x4 calliper conversion no.

Lee

chalkey

sorry for dragging an old thread up but can you use focus st170 calipers aswell?

iansoutham

Carrying on the resurrection, bigger is not necessarily better. Big brakes are okay up to the point that they cause the ABS to kick in or the tyres lose traction and slide. After that point, anything else is a waste. I had 2WD Cosworth brakes and 4WD calipers on my old XR3i MK4, running 16" wheels using a 24mm master cylinder and it had brilliant brakes. You could take the braking point right up to the edge of the tyres slipping and hold it there. In the wet, the slide point was just a little earlier. I drove another one with normal master cylinder and even bigger brakes (unknown brand but needed 16" wheels to only just clear) and it was all too easy to lock up in the dry, scary in the wet. I currently run 260mm front brakes and 24mm master cylinder on the MK4 cabriolet with 15" wheels and the brakes are perfect. Can lock the fronts if trying hard, but more than good enough for the speed of the car and the roads used.

RSB

Fantastic bit of info, im going for the rear conversion and using MK3 mondeo front calipers with st170 300mm discs!

I take my hat off to "Dojj"for being so helpfull and "mentalasanything" for a wicked informative post that even i understood lol

mentalasanything

Couldn't agree more. My cabby with standard XR3i master cylinder (non-ABS), Cossie 4x4 callipers and 2wd disks up front and XR4x4 callipers and RS2000 disks on the rear has awesome stopping power and is nicely biased without aftermarket valves. The MC plays a vital role that is often overlooked.

Cheers mate, you're welcome.

Lee

ranzrs

has anyone used focus rear calipers????????? off a normal focus model not a st

if so what about the stub axle?

Red_bull

he mate,

If i look on ebay for the First Line Parts FKB1340 then i shows a picture of a handbrake cable that doesn't look right. Or does generic image mean its a photo that doesn't match the real product?

http://www.ebay.co.uk/itm/First-Line...-/390557828051

Also this is not a RS2000 one but a 1.8i, but shows the same partnumber and is the cheapest i can find on ebay incl shipment to the Netherlands. Would you say this is the right product?

http://www.ebay.co.uk/itm/Ford-Escor...item3a6e117fdb

slimwynn

This is an odd one i've got cosworth 4x4 brakes/calipers but for some reason the guy i brought them off had grinded a bit of the caliper carrier on the ns os is fine,my worry is it looks like when the pad wears the one end of the pad end may fall out and jam,so I welded back in the missing metal,matched the shape to the other carrier and fitted it, now the odd bit! when driving in a straight line and braking everthing is fine if i turn a right hand bend with out braking the disc catches on the caliper carrier i'v had to grind the caliper carrier back to how he had it for it not to catch,I know its not right and i'm have difficulty finding why its doing it anyone got any ideas wheel bearing is fine.

mentalasanything

Only just spotted this! It was probably a library pic. I got that part number off the bag that mine came in.

That is odd. No grinding required on 4x4 calipers, just the spacing washers. I take it you have 2WD disks?

Lee

slimwynn

this was the problem in the end

Red_bull

Recomendation from my side don't go for a cheap proportional valve on your brake system. I had two cheaps and couldn't stop the rears from locking. A willwood in the end did the trick!

sseeaann1

Having a read through this thread i have a question.

When using the 2wd Calipers what disc do you use?

polle90

When you use de 2wd Cossie calipers; what disc do I use ? The 2wd or 4wd disc?

djmca

2wd discs

polle90

Thanks, when I 'm using the mondeo mk3 calipers, will they fit in the 17" Softlines? When I use the cossie 2wd calipers
I'll have to grind the calipers to fit in the soflines I noticed.