Club G40 Forum
Technical => Chassis & Braking => Topic started by: Oily Fingers on July 11, 2013, 09:15:26 am
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Looking at brake options now for my mk2 coupe eaton g40 build. So I will be needing the best I can get for non servo set up.
Brake disc sizes, pad options, single pot, twin pot, 4 pot sets etc
Any ideas or opinions will be cool
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well it's the same options you have with any g40, all the same stuff fits a mk2.
Depends how much you want to spend:
< £200 - new pads and vented discs with VWII calipers (basically standard g40 spec). New rear shoes, new brake flexi hoses
£200+ - 256mm audi calipers and carriers, braided flexi hoses, new rear shoes & drums
£500+ - wilwood 4-pots, 256mm discs, decent pads, braided flexi hoses, new shoes and drums.
Don't overlook the rear drums, even if you're not upgrading them (which to be honest, isn't needed) it's worth refreshing them. If the rear brakes aren't working well then it'll affect the whole braking of the car. I upgraded mine to 200mm using parts from a passat. To be honest it cost the same as buying new 180mm parts so was no big deal but I doubt it makes any difference really. The rear brakes do very little as there is no weight there, esp with a stripped out track car!
There are options to fit a servo but either involve cutting & welding the builkhead, fabricating some parts to fit a small servo off something (people have used metro servos in the past) or making a remote servo kit (which you can either buy as a kit or get from a mk1 golf). All a servo gives you is assistance in pressing the pedal it will not make your brakes any better themselves just means it requires less leg effort to operate them.
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That is the exact answer I was wanting. ClEar and too the point.
I'm Kool about not having a servo, don't wont to go down the root of cutting any panels about really.
All the brakes on the rear are all new, drums, shoes etc
Cheers dude!!
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And I was thinking the same, it's stripped out at the back, all that will be there are a battery relocated to the left side of the boot floor, and a fuel cell tank which is where the back seats were. So it's pretty light at the rear.
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youll need to do some work to fit a bigger master cylinder with bigger calipers to push the right amount of fluid
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Work as in chopping stuff about on the bulkhead? How big would I be able to run with the standard master cylinder?
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Depends on piston size but with stock mk3 cylinder 256s have lots of travel. ChecK max crox thread on club polo for how he approached it
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Kool cheers. I'm not too worries about stamping the pedal quite hard as I have to do that in my beetle at a hoggish speed, that's running non servo twin pot disc brakes up front and drums on the rear
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Not quite gone down the route of bigger brakes but this is what I've done.
Standard vented G40 front setup with DS2500 pads, Rear mk4 golf rear calipers and mk2 rear discs.
Now because of the rear brake setup I've fitted a 22 mm master cylinder. Loads of info here
http://www.clubpolo.co.uk/forum/index.php?s=&showtopic=31303&view=findpost&p=2336493 (http://www.clubpolo.co.uk/forum/index.php?s=&showtopic=31303&view=findpost&p=2336493)
Currently looking at fitting 256mm front brakes using Vauxhall calipers
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wouldn't you need a bias valve on the rear of a mk2 if fitting a disc conversion?
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The 256's are SO good! Loved them on my GT. Not light, but pull the car up in a hail of screeching tyre.
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wouldn't you need a bias valve on the rear of a mk2 if fitting a disc conversion?
when I first fitted them... the answer was yes.. now they have bedded in and become a bit crap.. the answer is still yes but not as much! :-D
the rears used to lock up quite easily but now its not a problem. however I think in the wet on a corner it could still step out. But rather than fitting a bias valve I'm going to fit larger piston brakes to the front which should sort the balance out :)
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could it be possible to use mk2 golf gti carriers and callipers???
like this
http://www.ebay.co.uk/itm/vw-golf-mk2-16-valve-90-spec-256-mm-brake-set-up-conversion-gti-/111225857957?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item19e593e7a5
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no they dont fit.
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there are a couple of great upgrade options using vauxhall or volvo parts for the old poloes, there are full FAQ's up on clubpolo braking section, so its well worth having a read.
I've ran 256mm brakes with no servo and 200mm rear drums (off a mk3 golf) on my mk2 couple. Didnt bother changing the MC or adding a servo. Brakes were great. Needed a good ol' stamp but easy enough to lock up and with the ferodo pads would light up like a sparkler under heavy braking at night!
Only problem with the ferodos is they nom your discs like nothing else!
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sounds like I need early audi 80 carriers. are these the ones? according to the ad its for 83/84 audi 80
http://www.ebay.co.uk/itm/AUDI-80-2-0-TRW-Carrier-brake-caliper-83-84-/301023475509?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item461665b735
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I have found these as well.
http://www.ebay.co.uk/itm/Volkswagen-MK1-Golf-Brake-Conversion-Kit-Brackets-For-G60-Calipers-280mm-Discs-/130665624364?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e6c47332c
would give the option of running g60 brakes which I believe to be 280mm.
would that be abit over kill on a mk2??
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You can just use the adaptors and then use mk2 golf 16v brakes and run 256mm :)
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I think that might be the easier option, as I I'm cort of having trouble finding the exact audi 80 carriers I need. but would the 280mm discs be overkill?
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I think that might be the easier option, as I I'm cort of having trouble finding the exact audi 80 carriers I need. but would the 280mm discs be overkill?
280's may be a bit much and that would mean you would have to run 15's... where as if you bought the adaptors and ran a 256mm mk2 golf 16v set up you'd be able to run 14's too and a set of 16v brakes always go for about 30 quid.. and is a lot cheaper than finding audi 80 carriers and then the calipers aswell..
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You can just use the adaptors and then use mk2 golf 16v brakes and run 256mm :)
Is it as simple as that? sweet! :D
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You can just use the adaptors and then use mk2 golf 16v brakes and run 256mm :)
Is it as simple as that? sweet! :D
Indeed it is Mark ;)
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Can anyone tell me which variant of Passat the 200mm drum brakes come off. Bought some last year but am looking to get a new fitting kit and can't seem to nail down the right one on GSF. Would it be the same as the MK3 Golf that one of you guys used?
Thanks.
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it's a 1984 model if I remember correctly, they should be able to find them on their catalogue in GSF.
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I got mine of a 96 mk3 golf tdi
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Cheers guys, went to GSF and they struggled to find a fitting kit for me. Since then i've been back and measured the drums, and they look like could be 230mm instead?
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where have you measured from, i have two sets on the shelf so can measure up over the weekend
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I've measured across the outer face, where the wheel bolts go in. Annoyingly don't have enough space to take the wheels off until the weekend. Measured about 24omm in diameter, hardly scientific but the best i can do until i can clear some space. If you could measure up yours that would be ace.
Thanks.
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I think the diameter is the inner diameter the shoes fit into.
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86c Polo are 180 x 30mm
Mk3 Golf and others are 200 x 40mm
Caddy diesel pickup and Passat TD are 230 x 40mm
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If you want to go with a servo setup, I had a Lockheed remote servo fitted to my Mk2 G40 conversion around 10 years ago. I couldn't tell you much about it as I didn't fit it, but a little search online shows a few people selling them on eBay for sensible money...
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I got a set of Mk2 gti 16v calipers for £12.50 delivered, what adaptors would I need to fit them to my 91 Gt breadvan?
Ian
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Are they stamped VWII? If so, you can use the Polo carriers you have already got.
If they are stamped Girling 54 then you will either need the early Audi carriers, or use the later carriers with the aforementioned adapters.
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http://www.ebay.co.uk/itm/141195543007?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Are these the adaptors you mean?
Ian
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Help please, I don't want to order them if there not the adaptors you mean.
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Help please, I don't want to order them if there not the adaptors you mean.
Good question, I'd be interested to hear...?
Because earlier this threads says you could just bolt 256 calipers (veedub90) ,so yes they would be suitable, but the advert specifically says 280 calipers, so no they wouldn't be suitable.
There are some similar on amazon
http://www.amazon.co.uk/Brake-Conversion-Brackets-Calipers-BR0016/dp/B00HKEDP7O
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If the caliper carrier mounting points are the same it should work in theory?
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If you want to go with a servo setup, I had a Lockheed remote servo fitted to my Mk2 G40 conversion around 10 years ago. I couldn't tell you much about it as I didn't fit it, but a little search online shows a few people selling them on eBay for sensible money...
I've looked at these but I didn't like that it basically turned it into a single line brake system so removed the diagonal setup.
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If the caliper carrier mounting points are the same it should work in theory?
No, you will end up spacing the caliper out too far, so your pad will not be in full contact with the disc
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check out these two FAQ threads over on ClubPolo for info on alternative 256mm setups.
http://www.clubpolo.co.uk/forum/index.php?showtopic=104557
http://www.clubpolo.co.uk/forum/index.php?showtopic=189891
FYI, you can also fit Volvo 4 pots
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The problem seems to be getting hold of the Audi carriers, without them are my girling 54 calipers useless?
Ian
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Astra Gsi with 280 mm carrier and caliper fit in g40?
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Reviving this slightly...
Do the Wilwoods (256) fit behind 14" BBS RA's? Also would the master cylinder need changing at all? It has a 22mm one on already.