Yet Another 307 Brake Q -

[axnutty 10]

My car runs 1.6 hubs with nearly new driveshafts. Im upgrading(questionable) the rear to disc brake, stainless hoses & bias valve. Ive got rid of the Brembo 4pots I was going to use as they require new alloys and I want to keep the standard 1.9 alloys so im looking at the proverbial 307 calliper and brake disc conversions.

 

From researching on here I have come to the following answers, maybe if ive got these wrong someone could put me correct. But so far I am assuming:

 

# 1.6 hubs have an unfortunate offset for bolt on brake swops. I require base model or 1.9 ones hubs for both the 266mm and 283mm brake conversions Im considering.

 

# 266mm callipers are the same as 283mm callipers, in as much as they both have a 54mm piston. But the yokes are different and you cant use a 266mm specific calliper assembly on a 283mm disc or vice versa.

 

 

 

 

I would be interested to know what people with the both conversions rate the brakes. Are 266mm ample on a fast road car? Is the difference between 283 and 266 so neglible on the 205 its not worth worrying about? <- I know thats a "how long is a piece of string?" but maybe someone on here has had the luxury of trying both set ups?

 

Also master cylinder sizes are:

 

307 1.4 (266mm) = 22mm

307 2.0HDi (283mm) = 23mm

205GTi (247mm) = 20.6mm

406 non ABS = 23.81

206 1.6 16v non ABS = 22.22mm

 

Brake calliper sizes:

 

307 (ALL MODELS) = 54mm

205GTi = 48mm

 

It would appear therefore that if you run 283mm then the 406 MC is going to be ideal, but if your running the smaller 266mm discs and callipers perhaps the 206 MC would be a better bet? Has anyone used this MC?

 

Really just checking ive got all this right as I need to give an answer on these 266mm callipers tonight.

[James_R 3]

I kind of got board of reading all of that, but spotted the what do you run bit which is as follows

 

std 1.9 front and back brakes.

 

DS2500 front pads and ferrodo premier rear

 

AP600 fluid.

 

Fade free and still strong after hours of abuse at donnington park saturday and the pads have lasted all of last season of tracks. good cold bit and very good pedal feel.

 

To run them on your car, just use 1.6 discs and 1.9 calipers done.

[chownr 0]

Im running 307 setup (283 discs) greenstuff pads, and a 406 master cylinder on my rally car. Never suffered any real issues except occasionally brake fluid is knackered after a heavy tarmac rally. Only used one set of discs last year and changed the pads every other event (3 sets last year).

 

Going to try changing fluid to Motul RBF600 this year which should sort the fluid issues out.

 

Hope this helps

 

Rich

[d-9 0]

I ran 266s on my 106 which is comparable to a 205 in weight and performance, work really well and thats with standard pads, if you want more bite 1144s or DS2500s will give extra bite.

[taylorspug 7]

Cant comment on the 266mm setup, but the 307 setup is bloody heavy, really took me back when i picked up one of the calipers how much it weighed...

 

Put me off anyway, id either improve on the std setup (be it 1.6 or 1.9), or go to 4 pots which fit inside the Speedlines (expensive).

[d-9 0]

yeh the weight is the reason Ive gone for the 266s, seems to be quite a lot lighter than the 283s and theres enough heavy stuff bolted to the front of the car as it is!

[axnutty 10]

...std 1.9 front and back brakes / DS2500 front pads and ferrodo premier rear / AP600 fluid...Fade free and still strong after hours of abuse at donnington park...

 

..307 setup (283 discs) greenstuff pads, and a 406 master cylinder on my rally car. Never suffered any real issues except occasionally brake fluid is knackered after a heavy tarmac rally...

 

Seems little point in the upgrade My current pads are the Ferrodo Premiers all round with standard brake fluid and I can cook them remarkably quickly at the moment. Maybe im a heavy/late braker... but good advice anyway, thanks people!

 

As it happens I have gone ahead and bought the 266mm callipers as I managed to get a brand new set for £50. They weigh a tonne! I see what you mean about off putting! Quite literally anchors![ ] But at that price I shall give them a go and see what I make of them.

 

Very interested to see the remarks about standard brakes though...going by the weight of the 307 stuff im seeing the point of sticking woth the current set up and trying better fluid...

[TKH 0]

You could see if you can space the Brembos out enough so you can clear stock wheels. Then just turn an alloy bell and use a generic rotor.

[axnutty 10]

It would need spacing out a huge amount to get under the standard 1.9 wheels Tom. Ive looked into it already Really I feel they are too much of an overkill on a road car anyway.

[pug_ham 245 3 Cars]

I've always run my cars on standard sized brake & have yet to suffer from any fade with ATE disc's & standard bendix pads with 1.6 GTi bendix calipers.

 

I've now got a pair of Pagid black pad's fitted but have yet to do a trackday with them on. Certainly I've never got any fade on the road with any of them & that includes dubious left foot braking practice.

 

I've got a set of 266mm stuff & some ATE discs for my current project track car but they will have to be exceptional from cold once fitted & bedded in for me to see the point for them on a road car over decent standard stuff.

 

Graham.

[Baz 421]

I've recently sold my GTi6, and am selling my newly acquired 307 Hdi brakes, for much the same reasons above, the weight, which of course is unsprung, so any increase is in effect around 4x heavier. Plus, after being in James R's car, and even the 1.9 i used at Donington on Saturday, running 1.9 calipers on 1.6 hubs/discs etc, i'm just going to stick with std stuff myself, may stretch to the set of 266mm's, but only because i have them sitting around. They really are good enough.

 

In summary, use decent fluid, pads, and maybe uprated lines, and there should be no problem whatsoever, quite adequate.

[gti_al 1]

I don't know about everyone dismissing the 283mm setup due to its weight... i was worried initially, but somehow my car handles now than it did on 1.6 brakes. I'm not sure if this is due to the new hubs or what, but there are so many variables, and i can't see many being isolate the weight of the brakes as the cause of compromised handling. (on the road at least)

 

Even on horribly cheap and nasty pads it stops very nicely... to get a standard setup to do that is far more expensive. They look the business as well!

Edited March 8, 2007 by gti_al

[Henry Yorke 269 3 Cars]

I run 266mm 307 1.4 brakes and the nie thing is they fit neatly under my old style spoked and dished wheels, where 283 wouldn't and also I didn't have to change the master cylinder. Pedal feel is nice. Discs and pads are Peugeot ones, however I think I did cook them at Cadwell, but I was breaking quite significantly!! The extra makes a difference for me. Big brakes can often be jerky if not servo'd / adjusted right

[d-9 0]

Just driven the 205 on standard stuff after a week of driving my 309 on 266s, admitidly theyre probably a little rusted up, but i almost went straight on at the main road (its a T junction, straight on involves a sign, then a hedge). 266s are defo the way to go.

Edited March 9, 2007 by d-9

[Rippthrough 98]

I run 266mm 307 1.4 brakes and the nie thing is they fit neatly under my old style spoked and dished wheels, where 283 wouldn't and also I didn't have to change the master cylinder. Pedal feel is nice. Discs and pads are Peugeot ones, however I think I did cook them at Cadwell, but I was breaking quite significantly!! The extra makes a difference for me. Big brakes can often be jerky if not servo'd / adjusted right

 

 

My jacket still has a slight aroma of fried brake pad.