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Model specific boards => Golf mk3 => Topic started by: whileoceanasleeps on 18 February 2013, 21:11

Title: uprated rear brakes on a 16v mk3
Post by: whileoceanasleeps on 18 February 2013, 21:11
hey, all my discs and shoes are in need of replacement all round and I was thinking - how hard is it to put 288 (or whatevwr they are) front discs on the rear? if I need to replace anyway The actual disc cost wouldn't differ much. would it be as simple as pulling front calipers on the rear?

thanks

sorry about typing I'm iPhone lazy
Title: Re: uprated rear brakes on a 16v mk3
Post by: Screech16v on 18 February 2013, 21:13
Absolute waste of time as the rears don't need brakes any bigger than what you have already as most of the braking is done up front anyway .
Title: Re: uprated rear brakes on a 16v mk3
Post by: murraymint on 18 February 2013, 21:14
No point as that will make the rear lock too easy. All the weight shifts to the front when braking, hence big brakes on the front


Edit: unless your sh!t hot at reversing  :laugh:
Title: Re: uprated rear brakes on a 16v mk3
Post by: whileoceanasleeps on 18 February 2013, 21:15
ah ok fair enough it was just a thought I had today as I know the rears are smaller. that's an easier way too!
Title: Re: uprated rear brakes on a 16v mk3
Post by: thai-wronghorse on 18 February 2013, 21:15
As above.  Just make sure the standard equipment is in good working order and stick some decent pads on there .
Title: Re: uprated rear brakes on a 16v mk3
Post by: whileoceanasleeps on 18 February 2013, 21:17
No point as that will make the rear lock too easy. All the weight shifts to the front when braking, hence big brakes on the front


Edit: unless your sh!t hot at reversing  :laugh:

maybe ill do it and just reverse everywhere to make it worthwhile  :laugh:
Title: Re: uprated rear brakes on a 16v mk3
Post by: Screech16v on 18 February 2013, 21:20
Youre nuts  :grin:
Title: Re: uprated rear brakes on a 16v mk3
Post by: whileoceanasleeps on 18 February 2013, 21:27
some would say it's a backwards step.. ok ill stop now  :grin:
Title: Re: uprated rear brakes on a 16v mk3
Post by: Screech16v on 18 February 2013, 21:30
Maybe a touch of reverse psychology is needed here
Title: Re: uprated rear brakes on a 16v mk3
Post by: AGGGTi on 18 February 2013, 21:38
Ive got some bendix pads on brembo disks on the rear, just as good as standard oem stuff. Id concerntrate on the front as mentioned. Im gunna go with tarox disks and mintex pads when i do my fronts, pricey though :sad:. Just make sure everything is working as it should, then your on to a winner!
Title: Re: uprated rear brakes on a 16v mk3
Post by: _redders_ on 18 February 2013, 21:49
You can get a euro 240mm vented upgrade I believe, but as said, your brake bias is ratio'd more to the front, upgrade to 312's upfront and decent pads and discs in the rear.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Gavv8 on 18 February 2013, 21:53
You'd have to have one f*ck off mk3 to need a big brake conversion.. :wink:
Title: Re: uprated rear brakes on a 16v mk3
Post by: F17BAD on 18 February 2013, 22:15
Im knocking on the doors of 400 hp and run mintex discs on the rear and mintex pads, with MK4 calipers and braided lines

spend the money on the fronts, as said, go for 312mm and good pads, ace set up for mk3
Title: Re: uprated rear brakes on a 16v mk3
Post by: whileoceanasleeps on 18 February 2013, 22:29
Im knocking on the doors of 400 hp and run mintex discs on the rear and mintex pads, with MK4 calipers and braided lines

spend the money on the fronts, as said, go for 312mm and good pads, ace set up for mk3

will I actually need 312 discs do you recon? i think im knocking on the doors of 150 :p (id love a ride in your beast) I'm short on £££ so I may get more expensive discs for the front and some standards for the rear
Title: Re: uprated rear brakes on a 16v mk3
Post by: F17BAD on 19 February 2013, 09:42
Tbh

A set of really good pads on your 280 or 288 mm is gonna be more than enough up front

I ran my original 280mm when I first put my s3 engine in and it was only 250 ish BHP but the brakes were more than adequate
Title: Re: uprated rear brakes on a 16v mk3
Post by: Gavv8 on 19 February 2013, 10:07
The standard setup is almost overkill on an 8v so plenty good enough for the valver.. :smiley:
Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 10:52
Really? My ABF is 165hp and I've got 288mm brakes up front with Mintex M1144 pads and standard sized brakes at the rear with Mintex OEM pads (I don't run ABS either) and goodridge braided lines all round and I feels the stopping power is not sufficient. 312mm brakes should have been standard on the 16v and VR6 I reckon  :undecided:
Title: Re: uprated rear brakes on a 16v mk3
Post by: Bellend on 19 February 2013, 11:16
Really? My ABF is 165hp and I've got 288mm brakes up front with Mintex M1144 pads and standard sized brakes at the rear with Mintex OEM pads (I don't run ABS either) and goodridge braided lines all round and I feels the stopping power is not sufficient. 312mm brakes should have been standard on the 16v and VR6 I reckon  :undecided:

Your master cylinder all good? How/why did you delete ABS?

My 288mm set up was immense. Coupled with decent tyres and really was brilliant.

Was on a sh!tty 75hp 1.6 though but probably the best brakes I've felt. That had deums on the back. I serviced the calipers and put new lines on though. Drums at back adjusted perfectly.

Obviously not stoppong a GTI but 60MPH stopped dead where the MK4 I have now with ABS doesn't stop anywhere near as well.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 11:23
Let me rephrase that. The car stops very well. But I just feel like the tyres have plenty of grip available after the brakes are maxed out.

I don't have ABS because the front wiring got ripped off and the rears don't have the ABS rings in them (wouldn't come out on the brake change).

Master cylinder good, no leaks anywhere, fluid is fine. I just feel there is a lot of fading as well. Needs better brake cooling.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Bellend on 19 February 2013, 11:44
Let me rephrase that. The car stops very well. But I just feel like the tyres have plenty of grip available after the brakes are maxed out.

I don't have ABS because the front wiring got ripped off and the rears don't have the ABS rings in them (wouldn't come out on the brake change).

Master cylinder good, no leaks anywhere, fluid is fine. I just feel there is a lot of fading as well. Needs better brake cooling.

Fair enough. Not sure what discs I had I had some Ferrodo pads.

Shame as the discs wore perfectly evenly, looked like they'd been on a lathe but they've been sitting for quite a while now and I'd imagine they're useless.

Really was impressed,  bite was sharp right down the the final stop. The 1.6 doesn't have loads of sheilds everywhere though so maybe cooling is better.

The standard set up was shocking.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Gavv8 on 19 February 2013, 11:46
Really? My ABF is 165hp and I've got 288mm brakes up front with Mintex M1144 pads and standard sized brakes at the rear with Mintex OEM pads (I don't run ABS either) and goodridge braided lines all round and I feels the stopping power is not sufficient. 312mm brakes should have been standard on the 16v and VR6 I reckon  :undecided:
Why don't you run abs?
Title: Re: uprated rear brakes on a 16v mk3
Post by: murraymint on 19 February 2013, 11:57
Let me rephrase that. The car stops very well. But I just feel like the tyres have plenty of grip available after the brakes are maxed out.

I don't have ABS because the front wiring got ripped off and the rears don't have the ABS rings in them (wouldn't come out on the brake change).

Master cylinder good, no leaks anywhere, fluid is fine. I just feel there is a lot of fading as well. Needs better brake cooling.

Fair enough. Not sure what discs I had I had some Ferrodo pads.

Shame as the discs wore perfectly evenly, looked like they'd been on a lathe but they've been sitting for quite a while now and I'd imagine they're useless.

Really was impressed,  bite was sharp right down the the final stop. The 1.6 doesn't have loads of sheilds everywhere though so maybe cooling is better.

The standard set up was shocking.

Yh to say my old 1.6 brakes where shocking would be a huge understatement! The valvers 288 set up feels worlds apart from the 1.6, but I had the abs flash while braking hard into a corner the other day, don't know if it was reassuring of worrying lol
Title: Re: uprated rear brakes on a 16v mk3
Post by: Len on 19 February 2013, 12:34
Front discs wont fit!

The rear discs have a deep offset to clear the hubs.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Bellend on 19 February 2013, 13:06
ABS shouldn't flash when it kicks in as far as I'm aware. Never has on any car I've driven!
Title: Re: uprated rear brakes on a 16v mk3
Post by: Gavv8 on 19 February 2013, 13:09
I've seen it flicker on mine when i anchored up for a deer in the road one dark and early morning but i doubt i'd have noticed it in the daylight.
Title: Re: uprated rear brakes on a 16v mk3
Post by: tweed on 19 February 2013, 16:21
Really? My ABF is 165hp and I've got 288mm brakes up front with Mintex M1144 pads and standard sized brakes at the rear with Mintex OEM pads (I don't run ABS either) and goodridge braided lines all round and I feels the stopping power is not sufficient. 312mm brakes should have been standard on the 16v and VR6 I reckon  :undecided:

this doesn't sound right to me mate. Maybe something wrong.
when my abs packed up I locked the rears at 120mph. Standard rears and greenstuff pads front grooved disc's. The brakes were cold, but once warm is was better but I also locked the front at 90mph, well one front wheel due to diff. The abs was sorted after that  :grin:

had toyo t1r's and it had new master cylinder fitted same time as the brakes. 288 setup

bigger disc just spread the heat so it takes a lot more before fade
Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 17:25
Reason I don't run ABS is partly due to me not being bothered to get new abs rings for the back and dismantling everything, and partly because I couldn't find the correct plugs for the front, but mainly because I like being 100% in control and I don't get that with ABS. If I'm braking hard into a corner and the rear starts to lock up for me it helps turning in. It's just my driving style.

bigger disc just spread the heat so it takes a lot more before fade

Wrong. The further outwards the disc is the easier it will be to stop, and also bigger discs will have a bigger contact patch. The fact they take longer to heat up is a bonus.
Title: Re: uprated rear brakes on a 16v mk3
Post by: tweed on 19 February 2013, 18:02
But isn't the 312mm upgrade just discs and carrier? Using same 288mm caliper?

Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 18:08
The pad is bigger though I'm sure.
Title: Re: uprated rear brakes on a 16v mk3
Post by: tweed on 19 February 2013, 18:13
But isn't the 312mm upgrade just discs and carrier? Using same 288mm caliper?

I was just saying I had more than enough braking with my 288 setup. As said could lock up at silly speeds. Wouldn't need more stopping power.  :laugh:

That's why I think something is not quite right with yours. I was always locking inside wheels, always tried to get braking done before turn in but sometimes braking points are on a bend
Title: Re: uprated rear brakes on a 16v mk3
Post by: tweed on 19 February 2013, 18:14
Sorry posted early  :grin:

Well that's fair enough, bigger disc and pads should be better  :smiley:
Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 18:51
Now I've got 16" wheels I might look into 312mm brakes. If I can use the same pads (someone correct me) then I'll upgrade even earlier!
Title: Re: uprated rear brakes on a 16v mk3
Post by: whileoceanasleeps on 19 February 2013, 19:00
what is the standard size of fronts for a 16v? is it 280 or 288?
Title: Re: uprated rear brakes on a 16v mk3
Post by: Ess_Three on 19 February 2013, 19:47
but mainly because I like being 100% in control and I don't get that with ABS. If I'm braking hard into a corner and the rear starts to lock up for me it helps turning in. It's just my driving style.

Same with my driving style...and I run ABS.
I even have some pukka tarmac rally pads, that stop only fractionally slower than hitting a tree...yet the ABS is a Godsend.
Can't see what anyone in their right mind would not want it on a road car.


Quote
Wrong. The further outwards the disc is the easier it will be to stop, and also bigger discs will have a bigger contact patch. The fact they take longer to heat up is a bonus.

Same sized pad.
Same pad.
Same calliper.
Same hoses.
Only the carrier differs...

And there really isn't that much difference between a 288 and 312 set-up.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 20:22
As I said, I'm not taking the rear discs out to put some rings in  :grin: If they ever need doing again then yes, but as of now, no.

So do you think it's not worth going 312mm then?

And what pads are you running?
Title: Re: uprated rear brakes on a 16v mk3
Post by: thai-wronghorse on 19 February 2013, 20:28
Yes,  288mm & 312mm  calipers are the same only the discs,  carriers and a spacer are required. This said i have read somewhere that some cars that had the 312mm set up had standard did indeed have slightly different pads but im not sure how or what tbh. Might just be tinterweb talk...
Title: Re: uprated rear brakes on a 16v mk3
Post by: VW BUSH on 19 February 2013, 22:19
P=F/A
If you have a bigger area of pad but only the same applied force then what is the net result? Just saying like.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Khare on 19 February 2013, 22:23
Using larger discs (312mm will be 24mm larger in dia) will aid slowing down considerably. Think about a spinning bicycle wheel its easier to grab hold of and stop a spinning wheel from the outside edge, if you try it from further in it gets a lot harder.
I would try the larger discs and standard calipers first and then if you're still not happy upgrade to 4 pot calipers. Larger discs will also dissipate the heat quicker as well so should prevent overheating.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Wayne on 20 February 2013, 00:14

So do you think it's not worth going 312mm then?


312mm is a worthwhile upgrade, running no abs is madness however.
Title: Re: uprated rear brakes on a 16v mk3
Post by: Ess_Three on 20 February 2013, 05:25
As I said, I'm not taking the rear discs out to put some rings in  :grin: If they ever need doing again then yes, but as of now, no.

Lazy git!
Get it done  :tongue: :tongue:


Quote
So do you think it's not worth going 312mm then?

Not if you want a massive increase in braking...and the extra unsprung weight should be considered!
Worth it if you get the carriers cheap?
Yes.

But unless you are using the brakes hard, getting them hot or doing track days?
Possibly


Quote
And what pads are you running?

Mintex M1155s on the road, as I have 2-3 sets spare (front only...standard VW rears).
Mintex F4R competition pads every now and then...noisy, aggressive, messy...but like hitting a tree when you hammer them on.