gti with a bam brake upgrade?

[VW BUSH]

Surely if you increase the area in the calliper by going up in piston size or number of, you need to increase the master cylinder area proportionately to achieve efficient braking?
Not sure what Master cylinder diameter and volume  (VW) cars with 312 brakes have as opposed to a Std Mk3 most likely the same or of little difference


 

[tweed]

Surely if you increase the area in the calliper by going up in piston size or number of, you need to increase the master cylinder area proportionately to achieve efficient braking?
Not sure what Master cylinder diameter and volume  (VW) cars with 312 brakes have as opposed to a Std Mk3 most likely the same or of little difference


 

Yep I'm sure your brake pedal will travel further before bite, but I can't see it being a problem. Could be better for feel.

[leigh_harty]

My mates vr turbo handled its 380bhp fine on 288 pagid discs and some mintex pads

He then spent alot of money buying and rebuilding 6pot tarox brakes, making them fit with custom adaptors to 312mm pagid discs, new yellow stuff pads just to be utterly disapointed and revert back to the 'rubbish' golf setup

As said, sort the chassis out as much as possible - many people overlook this part to stick turbos on and shiny wheels on etc

[Ess_Three]

mk3's don't have banjo fittings, you only require a banjo fitting conversion hose kit when installing mk4 rear calipers.

Late type 288mm fronts do.
TT/S3/Mk4 are the same caliper as the ATE type late Mk3 calipers.

[Ess_Three]

Forget grooved discs just get plain

You are always going to get differing opinions...

Personally I can't stand any EBC pad - I think thay are all crap.
I'd run Mintex M1155s or Ferodo DS2500

And I'd always run a grooved disc - in mt view, with proper competition type pads (M1155/DS2500) the gas layer causes problems, and the grooves solve that.

But as always...brakes are subjective...there are many good options.

[sharki786]

whats so good about Mintex M1155s or Ferodo DS2500? lets be honest! i wont be tracking my car so just need good brakes that will stop the car. dont want to waste money even though i want the 312mm braking only because "other people" have them. so feck that il just leave the standard size on.
what about the disks then bud? im defo going to get grooved as i had them before & they lasted long enough. tarox or black diamond any good? or dont bother looking at named brands?

[thai-wronghorse]

mk3's don't have banjo fittings, you only require a banjo fitting conversion hose kit when installing mk4 rear calipers.

Late type 288mm fronts do.
TT/S3/Mk4 are the same caliper as the ATE type late Mk3 calipers.

Of course,  stupid me... It's what I've got on mine.   

Bolloxs that also means that braided Goodridge hoses I've got tucked away in the shed aren't going to fit either - Meh!

[sharki786]

well PM'ed kells and he said he has mintex disks with yellow stuff. spoke with C&N enterprise (got my previous disks from them (pretty good) might get same with yellow stuff (only reason for yellow stuff is that i have green stuff pads & they have very little dust so going to try out the yellow stuff now unless others can change my mind with reguards with disks

[Ess_Three]

whats so good about Mintex M1155s or Ferodo DS2500?

They just work...they have a high friction co-efficient, work from cold with no squealling, take the heat well and give a better pedal, with a more constant feel.
OK...they produce dust...more than Greenstuff, but less than cheap OEM types.

[Ess_Three]

well PM'ed kells and he said he has mintex disks with yellow stuff. spoke with C&N enterprise (got my previous disks from them (pretty good) might get same with yellow stuff (only reason for yellow stuff is that i have green stuff pads & they have very little dust so going to try out the yellow stuff now unless others can change my mind with reguards with disks

Greednstuff = no mess...but little feel, and I managed to delaminate all the pad material from the backing. Apparently EBC suggest they shoulsn't be used on 200BHP cars...crap.
Redstuff = even less feel than greenstuff, far more effort to make them do anything...and what they did, was not a lot.
Yellowstuff = better initial bite, but non linear accross the heat range and they need more of a shove than M1155s/DS2500s, in my mind.
All in all, I'd not have any of them.
There are better out there.

I have a set of Mintex Competition F4R Tarmac Rally pads too - it's like throwing out a pair of VR6s.
They are incredible...too aggressive for the road, they squeal like a pig and make lots of brake dust, that once wet, doesn't wash off.
So I don't use them 

As I said before, brake 'feel' is subjective, and everything is a compromise.