dog296
Part of things
Posts: 302
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Dec 17, 2011 20:49:18 GMT
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Hey.
I currently have solid disc fitted to my '92 Driver. Looking to go for a bigger engine in the future, so would like something that's not going to fade out....
Looking on VWHeritage today, I noticed that I can get 12mm disc's (Which I have now) and I noticed I can get some 20MM (vented) and a set of different pads....
Does this mean, all i need is the right pads and disc's and I can run vented brakes?
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Dez
Club Retro Rides Member
And I won't sit down. And I won't shut up. And most of all I will not grow up.
Posts: 11,790
Club RR Member Number: 34
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Golf mk2 vented disc upgrade?Dez
@dez
Club Retro Rides Member 34
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Dec 17, 2011 21:04:25 GMT
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no. you need different calipers with wider spacing too.
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Dec 17, 2011 21:45:43 GMT
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if it has vwII stamped on the calipers you can go to vented's
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91 golf g60, 89 golf 16v , 88 polo breadvan
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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As steveo says, if the calipers are VWII items (Which I expect they are on a driver, it'll be written on them on the side facing outwards.) then VW were lazy enough to just use thicker pads on non-vented models, so all you need for vented discs is pads from a vented model, and the discs them selves. Half warn pads will also work, as they literally are just a bit thinner. If they're VWI calipers, the you need to swap the calipers for VWIIs, but they're cheap and plentiful, they were used on lots of VW's in the 80s/early 90s.
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Dec 18, 2011 10:23:43 GMT
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The vented version of the 236mm brakes won't actually give you more stopping power, just be less prone to fade. Still a worthwhile upgrade though.
Another option would be to fit 256mm x 20mm vented discs and calipers from a mk2 Golf GTi. You'll need 14" wheels to clear the calipers though. It's all a straight bolt on swap.
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Dec 18, 2011 17:01:08 GMT
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The vented version of the 236mm brakes won't actually give you more stopping power, just be less prone to fade. Still a worthwhile upgrade though. Another option would be to fit 256mm x 20mm vented discs and calipers from a mk2 Golf GTi. You'll need 14" wheels to clear the calipers though. It's all a straight bolt on swap. This may well be worthwhile if you're thinking of going for much more power. The 256's are only on mk2 16v's (as well as various mk3s, Passats and Corrados). To fit them on to a driver you'll need the hubs, calipers and carriers off a mk2 16v as well as obviously a set of the discs. If you go to 15" wheels you can also go up to 280mm x 22mm discs using bits from a G60 or other various VW's of the era. |
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Last Edit: Dec 18, 2011 17:05:46 GMT by RobinJI
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murran
Part of things
Posts: 610
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Dec 18, 2011 22:43:17 GMT
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how much bigger engine/power were you thinking?
apart from going to vented 239 discs/pads which is easy as (already said) its shear replacement stuff.
also.... all mk2 drivers (1600+1800) have drums on the back?!
apart from some decent pads (green stuff) in the front with the vented discs will be fine for fast road use even if going to gti type power.
any more power and you'll need a gti rear disc conversion.
this begs the question of why not just buy a gti? as the gti will all ready have it all plus a front and rear anti roll bar, better shocks, quicker steering rack etc....
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murran
Part of things
Posts: 610
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Dec 18, 2011 22:52:48 GMT
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no. you need different calipers with wider spacing too. most likely not. my old 1990 mk2 1600 driver had vw11 marked caliper which took gti vented discs and pads out of the box without caliper mods......  and my old gtd I also did the same......  my old 87 8v gti....  with rr proven 136 bhp already had vented front discs and rear solid discs, I fitted green stuff pads all round and new standard discs and never had a problem, even after thrashing it round cadwell for 45 minutes solid! dez.... unless your 90% sure on what your talking about.... don't post!!!! |
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Last Edit: Dec 18, 2011 23:03:06 GMT by murran
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Dec 18, 2011 23:23:50 GMT
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how much bigger engine/power were you thinking? apart from going to vented 239 discs/pads which is easy as (already said) its shear replacement stuff. also.... all mk2 drivers (1600+1800) have drums on the back?! apart from some decent pads (green stuff) in the front with the vented discs will be fine for fast road use even if going to gti type power. any more power and you'll need a gti rear disc conversion. this begs the question of why not just buy a gti? as the gti will all ready have it all plus a front and rear anti roll bar, better shocks, quicker steering rack etc.... Rear drums have proven to be more than fine for a lot of people even for heavy track use on mk1/2 golfs. They're pretty front heavy, and not the lowest or heaviest, so heat build-up out back doesn't really seem to be an issue, and the drums can provide enough power. |
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Last Edit: Dec 18, 2011 23:34:38 GMT by RobinJI
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murran
Part of things
Posts: 610
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Dec 18, 2011 23:34:35 GMT
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just thinking if your going above gti power it would be a good idea to upgrage to atleast gti spec brakes, inc rears. I never took any of my rear drum braked mk2 on track so cant comment. blue one was our lasses. and my gtd while used in anger at times (after fiddling with the pump fueling and over boost actuator... it was as fast as a standard gti (.8 bar boost... .6 stardard)), but it never saw track action. infact is safe to say I regret selling that gtd. spent alot on that car in the 10 months i had it.  didnt realise at the time it was a car i should have held on to. |
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Last Edit: Dec 18, 2011 23:44:08 GMT by murran
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Dec 18, 2011 23:44:29 GMT
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Yeah, it makes sense, and is definitely the case up front, in fact even with only 100bhp in my Scirocco I still found it an advantage going to 280mm discs up front, although I live in a very hilly area. It stopped impressively well with half decent tyres. Generally though mk1/2's have proven to be pretty insensitive to rear brakes just because there's so little weight on them, you're talking well under 200kg under heavy braking, which with the front having 3 1/2 times that on them makes their performance pretty insignificant, a couple of drums are more than capable of stopping ~175kg. Plus then when you consider having to run a heavier than ideal front bias to allow for all conditions, they start getting even less worked. PS, yeah, I do like a good GTD, in fact I've got a tuned GTD engine in the Scirocco at the moment, (just with a seized bottom end  ). As well as my daily Passat having the same SB code engine as the GTD's run, it's fair to say I'm definitely a fan of them. |
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Last Edit: Dec 18, 2011 23:49:12 GMT by RobinJI
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murran
Part of things
Posts: 610
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Dec 18, 2011 23:56:34 GMT
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I like scriroccos, I had a 87 scala 1800 carb and a 1990 scala injection a long time ago. had the same kent cam and audi 2.2 throttle body as the green golf pictured above (i swapped the cam and stuff to the golf).  did a 16.5@ 90mph that run. didnt beat the golf tho (it had a 1.8t engine in it!) is this just me reminsing my past cars here or what?  |
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Last Edit: Dec 18, 2011 23:58:30 GMT by murran
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). As well as my daily Passat having the same SB code engine as the GTD's run, it's fair to say I'm definitely a fan of them.