MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Technical Workshop => Topic started by: tony_danza on December 19, 2008, 05:40:57 pm
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I'm not sure if the rear hubs are the same, so can it be done?... even my old anni had vented rears as standard - tsk!!
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Yes it can be done i think, :laugh:
I am sure i have read about a few people doing both. I believe its a lot harder doing the rears due to the hand brake. :driver:
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R32 is 4wd so the rears would be very hard to convert, Infact i would say its a no-no.
waits to be corrected.
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R32 is 4wd so the rears would be very hard to convert, Infact i would say its a no-no.
waits to be corrected.
TT was gonna do it. :smiley:
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TT said it wasn't a simple swap as there was quite a substantial difference in set-up between the R32 and the GTI. I was wondering if my stock GTI fronts would fit on the rear? anyone any idea?
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I've found that Autotech sell a 310 R32 conversion for the MKV - I'll see if I can find out some more info on what exactly is required?
http://www.autotech.com/prod_brakes_rrbrakeconv.htm
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holy smokes, 310, thats two mm off what the gti gets on the front!
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I asked about these from my mate at vw and i think the kit was about £300 might be a bit more as it was just a rough price as i think these would be good for me when i fit the RS4 setup on the front :evilgrin:
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Yeah, you can't really go putting giant stoppers up front and leave the rears alone. Ideally you want nice flat braking, rather than slamming the front valance into the tarmac when you hit them and having the back end go light.
310mm vented rears with some decent pads will be pretty awesome mated up with those RS4 brakes!
We just need to find out what exactly we need and how to do it.
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i need to do this too. its a deffinate on my to do list! i wonder if the master cyclinder is good to cope with all these different brakes?
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Depends, do you have a 22mm master? I think you do.
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ye i think i do.
same all round then if you have the 22mm?
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Yeah, you can't really go putting giant stoppers up front and leave the rears alone. Ideally you want nice flat braking, rather than slamming the front valance into the tarmac when you hit them and having the back end go light.
310mm vented rears with some decent pads will be pretty awesome mated up with those RS4 brakes!
We just need to find out what exactly we need and how to do it.
on the fronts or the rears setup?
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Rears - is it hard or easier than we think?
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Rears - is it hard or easier than we think?
i will try and get some vw pics from there machine to see what the changes on the rear are or is it just a simple swap. just had a thought what does the cupra have on the rear is it the same as the r32? i have all the part numbers for the rear brake setup for the cupra so will compare part numbers with the r32 :happy2:
just looked and rears on the cupra are 286mm
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there doesnt seem to be a specific r32 rear brake diagram on etka
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I think it's down to the fact the hub is different with it having a CV joint on the R32? I should have a reply by tomorrow evening if we haven't found out by then.
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hmm...maybe, im starting to think this mod will be very very difficult and maybe involve some custom brackets etc
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Very likely... but a good earner if someone knows how to make something like that.
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I was informed by JKM that R32 rears would go straight on the GTI...
What's the size of the R32 rear discs?
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310mm - i.e. fapping huge for rears!
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hmm...maybe, im starting to think this mod will be very very difficult and maybe involve some custom brackets etc
The cupra kit is 288mil as Mat mentioned, and the chap selling them makes no mention of them not being a straight swap, i am pretty sure if you just went for the cupra kit upgrade which is the same as the R32 the only difficult bit would be the handbrake.
http://www.seatcupra.net/forums/showthread.php?t=186468&highlight=cupra+brake
Have a read through or send this chap a message i am sure he will know whats involved. :santa:
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Do the Cupras have vented rears, or solid like the Golf?
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the guy does not know as he is a seat dealer in ireland and i have asked him about the brakes he is selling as they are not complete kits and i have asked him about the prices as i know VAG group have changed the discount codes on alot of stuff and they are giving as much off to the dealers :sad:. i have asked him to update his prices and add the parts that are missing to his list as i know what they cost the them and thats what i sell them for :smiley:
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i think im going to have a serious look at this in the new year. hopefully ill get some and trial it.
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http://img91.imageshack.us/img91/2660/portfuzetagtir32mp1.jpg
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that sheds some light on the situation! im think them might bolt straight on less the splash guards!
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hmm...maybe, im starting to think this mod will be very very difficult and maybe involve some custom brackets etc
The cupra kit is 288mil as Mat mentioned, and the chap selling them makes no mention of them not being a straight swap, i am pretty sure if you just went for the cupra kit upgrade which is the same as the R32 the only difficult bit would be the handbrake.
http://www.seatcupra.net/forums/showthread.php?t=186468&highlight=cupra+brake
Have a read through or send this chap a message i am sure he will know whats involved. :santa:
Ok chaps managed to prove myself. wrong :ashamed: found a good thread which gives a lot of answers to the problem but also at the end of the thread it looks like it could be done.
http://www.golfgtiforum.co.uk/index.php?topic=90264.0
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Hmm - seems there was never a 100% how to guide, but he does indeed have R32 rears... so they got on there somehow!!
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Hi
im new around here but i have a set or R32 rears that im hoping to fit to my mk v over the next few days . I can post back here with my findings if it helps .
Liam
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Hi
im new around here but i have a set or R32 rears that im hoping to fit to my mk v over the next few days . I can post back here with my findings if it helps .
Liam
Hi Liam. welcome to the forum. :smiley:
It would be great if you could do that, and if possible a bit of a write up and pics. :drinking:
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Good man Liam! :happy2:
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[/quote]
Hi Liam. welcome to the forum. :smiley:
It would be great if you could do that, and if possible a bit of a write up and pics. :drinking:
[/quote]
Thanks for the welcome
Ill put together some pic and a write up if it all goes to plan with the fitting
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Autotech have told me today that they even utilise the splash guards and it is pretty much bolt on... I guess we'll see?
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I have the splash gaurds for these aswell . I should have some answers by tomorrow evening .
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Ive had a look at fitting these this morning on my own car ( 2004 2.0 TDI )
I did a dry run (brake pipe not plumbed ) and it all bolts up fine bar the lower of the 3 screws for holding on the splash gaurd . I drilled a new hole for this and spaced it out with a m8 nut with a slightly longer bolt . Ill be fitting the for proper in the next week and ill get better pics then if anybody wants them .
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi38.photobucket.com%2Falbums%2Fe146%2FLiamOL%2Fr32%2520rears%2Fth_2008_1214r32rear0015.jpg&hash=b41bb55d92e0475c6d432c0e95b2166f06b25521) (http://s38.photobucket.com/albums/e146/LiamOL/r32%20rears/?action=view¤t=2008_1214r32rear0015.jpg)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi38.photobucket.com%2Falbums%2Fe146%2FLiamOL%2Fr32%2520rears%2Fth_2008_1214r32rear0013.jpg&hash=ae0fcaefcd3e040b76b61617717ac9aa2e43f083) (http://s38.photobucket.com/albums/e146/LiamOL/r32%20rears/?action=view¤t=2008_1214r32rear0013.jpg)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi38.photobucket.com%2Falbums%2Fe146%2FLiamOL%2Fr32%2520rears%2Fth_2008_1214r32rear0018.jpg&hash=6041d1a1c228a90574f70508c740cd68b60918fa) (http://s38.photobucket.com/albums/e146/LiamOL/r32%20rears/?action=view¤t=2008_1214r32rear0018.jpg)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi38.photobucket.com%2Falbums%2Fe146%2FLiamOL%2Fr32%2520rears%2Fth_2008_1214r32rear0009.jpg&hash=b8fe80002b2ed0608282349e5d66d723eabbabd7) (http://s38.photobucket.com/albums/e146/LiamOL/r32%20rears/?action=view¤t=2008_1214r32rear0009.jpg)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi38.photobucket.com%2Falbums%2Fe146%2FLiamOL%2Fr32%2520rears%2Fth_2008_1214r32rear0003.jpg&hash=d870621f027eb4220cb11bd6baf31b5fe367b019) (http://s38.photobucket.com/albums/e146/LiamOL/r32%20rears/?action=view¤t=2008_1214r32rear0003.jpg)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi38.photobucket.com%2Falbums%2Fe146%2FLiamOL%2Fr32%2520rears%2Fth_2008_1214r32rear0002.jpg&hash=dff1f61ad896dde2cd8ae4a170f0bc98ad59aafb) (http://s38.photobucket.com/albums/e146/LiamOL/r32%20rears/?action=view¤t=2008_1214r32rear0002.jpg)
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It's good to hear that it's a goer!
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thats great, wish i bought the rears now when i paid for the fronts!
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Do the S3 brakes fit the GTI and and are they a straight swap like the R32 fronts. :smiley:
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Do the S3 brakes fit the GTI and and are they a straight swap like the R32 fronts. :smiley:
They're exactly the same, save for a little cover with "S3" on it.. I think you can buy the cover and stick it on the R32/Leon brakes - if you wanted to?
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There are some on Ebay at the minute
http://www.mk5golfgti.co.uk/forum/index.php?topic=1150.0
:happy2:
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This dude got R32 fronts and rears on his Rabbit of Superior Breeding:
http://www.golfmkv.com/forums/showthread.php?t=72561
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both fit front and rears fit straight on.you do need r32 hoses for the front as there different to other golfs.the set up is 345 vents front and is it not 332 vented rear?
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its vented at the rear too
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Hi
im new around here but i have a set or R32 rears that im hoping to fit to my mk v over the next few days . I can post back here with my findings if it helps .
Liam
Liamo how is your conversion going is it done yet. :jumping:
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Hi
im new around here but i have a set or R32 rears that im hoping to fit to my mk v over the next few days . I can post back here with my findings if it helps .
Liam
Liamo how is your conversion going is it done yet. :jumping:
Progress is slow im afraid .Ive been workin on a few friends cars lately .
Im going to bite the bullet next week and take the car off the road til im finished work on it . I have to fit the brakes , refit my coilovers, the hybrid turbo, change the clutch for a new SMF kit from sachs,an S3 intercooler , quaiffe diff and do the TB and usual service . Its going to be a long week of late nights . Ill report back with pics .
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Are we 100% that the R32 rears actually fit the GTI in a similar way to the fronts - as in not more work involved like been suggested elsewhere?
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See the GolfMkV post I linked to. Guy fitted it with no problems apparently.
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Quote "the rear brakes are bolt on, even the rear brake lines are the same
the only difference is that the heatshield for the rear, only 2 of the 3 holes line up
but it is secure"
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do std mk5 gti fronts fit on the back?
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Nope, front are completley different due to the handbrake mech.
The Rear R32 setup is as big as the std fron GTI setup though :surprised:
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R32 is 4wd so the rears would be very hard to convert, Infact i would say its a no-no.
waits to be corrected.
TT was gonna do it. :smiley:
Unless this can be resolved with some definative answers, then the whole R32 345mm OEM set up will be put on hold, and I might get some lush 6-pot Alcons.
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TT said it wasn't a simple swap as there was quite a substantial difference in set-up between the R32 and the GTI.
Yup, it is all down to the front wheel drive vs four wheel drive rear end. EVERYTHING on the rear is different, including bearing sizes, hubs, hub uprights, etc. Could be a serious money-pit if you tried the R32 rears on a GTI. :scared:
I was wondering if my stock GTI fronts would fit on the rear? anyone any idea?
Erm, quiet word in your ear John <handbrake> :wink:
So, no. Won't work.
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I asked about these from my mate at vw and i think the kit was about £300 might be a bit more as it was just a rough price as i think these would be good for me when i fit the RS4 setup on the front :evilgrin:
That deffo wont work, unless you get serious with hammers, chisels, saws, and a bigger hammer! :evilgrin: :evilgrin:
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Yeah, you can't really go putting giant stoppers up front and leave the rears alone. Ideally you want nice flat braking, rather than slamming the front valance into the tarmac when you hit them and having the back end go light.
But you can adjust the bias, to specifically compensate for this very issue, through the ESP/ABS software - I posted a thread on the other forum about this, but <dare I say this> two so-called VAG experts dismissed, probably because they had never heard of it! :jumping:
310mm vented rears with some decent pads will be pretty awesome mated up with those RS4 brakes!
We just need to find out what exactly we need and how to do it.
Yup 8)
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Rears - is it hard or easier than we think?
i will try and get some vw pics from there machine to see what the changes on the rear are or is it just a simple swap. just had a thought what does the cupra have on the rear is it the same as the r32? i have all the part numbers for the rear brake setup for the cupra so will compare part numbers with the r32 :happy2:
Been there, done that. The GTI rear end (subframe down) is completey different to the GTI. I think the only part number they share is for the caliper bleed screw!
just looked and rears on the cupra are 286mm
Yup, which is why us GTI folk prefer to use the Cupra R front brakes, rather than the R32 or Audi S3. Saves getting the paint brush dirty. :signLOL:
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Do the Cupras have vented rears, or solid like the Golf?
The Cupra rears are identical to the GTI and Octavia vRS - so the front wheel drive rears are all the same, whereas the four wheel drive R32/S3/A3q/TTq wont fit (well, not from OEM parts bins)!
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Autotech have told me today that they even utilise the splash guards and it is pretty much bolt on... I guess we'll see?
So it would seem that Autotech have just fabricated some new caliper carriers? By the looks of the picture earlier in the thread, they would appear to be using the lower spec calipers which have a 38mm dia piston, rather than the 41mm dia piston calipers from the R32/S3.
Do you happen to know if they would sell the carrier separately?
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Crap - this moved on a lot!
Erm, in brief:
Brake bias, I don't know anyone who knows how to change it via the ECU, so I'll chose the physical method instead... that's not poo-pooing your idea - just makes more sense to me.
R32 rears go on ok, although the splash guard will only locate to 2 holes instead of 3. I haven't done the mod myself, so until I do then that isn't gospel... but seemingly plenty of others have.
RS4 fronts are going on, it's being done by AMD and others - I have no idea what's involved to say if it's a simple or chisel & hammer job??
Not sure what you mean on the caliper piston size point - the APs are 6-pots and the R32's are twin, so I wouldn't necessarily expect the same sizes, don't 6/8-pots usually have staggered size pistons for "feel" and even pad wear??
They made custom bells & carriers for the AP discs & calipers. I sent them back as I wasn't happy with the clearance on the lower ball joint. IMO they needed a 20mm reduction on the bell offset and the carrier altering accordingly - so, I wouldn't bother asking them TBH. I do however know someone who can engineer carriers, if you have CAD to spec.
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Crap - this moved on a lot!
Erm, in brief:
Brake bias, I don't know anyone who knows how to change it via the ECU, so I'll chose the physical method instead... that's not poo-pooing your idea - just makes more sense to me.
You cant actually 'adjust' the bias in the ECU. But what it does do is basically re-define the default bias, depending on what physical hardware is at each end. So if we just stick with the same size rear anchors, and look at differing front anchors - then a 312mm disc will provide more effective braking effort for the same pedal pressure as a 286mm, and a 345mm disc will be more than the 312 and the 286. But because the bias is actually controlled electronically, rather than by old skool pressure limiting valves or load sensing valves - then any 'change' to disc performance at one end, which isn't matched by a (proportionately) equal change at the other - well this can seriously upset the bias - or brake balance.
Detail here: http://wiki.ross-tech.com/index.php/VW_Golf_%281K%29_Brake_Electronics_%28MK60%29
R32 rears go on ok, although the splash guard will only locate to 2 holes instead of 3. I haven't done the mod myself, so until I do then that isn't gospel... but seemingly plenty of others have.
As in - R32 rear calipers, discs, etc - or just the discs?
RS4 fronts are going on, it's being done by AMD and others - I have no idea what's involved to say if it's a simple or chisel & hammer job??
The caliper mounts will be quite different, as will the disc 'bells' - so some 're-engineering' will be required. I take it you arn't going for the Ceramics off the RS4? :chicken: :evilgrin:
Not sure what you mean on the caliper piston size point - the APs are 6-pots and the R32's are twin, so I wouldn't necessarily expect the same sizes, don't 6/8-pots usually have staggered size pistons for "feel" and even pad wear??
I'm referring to the actual diameter of the piston in the caliper, and specifically for the rears - and this is all relevent to the hydraulic advantages formulae. The dia of the R32 rear piston is 41mm, whereas the GTI has a 38mm piston. If those Autotech rear kits are using a standard caliper with a 38mm piston, then because the piston is smaller than the pukka R32 calipers, the rear brakes from Autotech will not be as effective as genuine R32 rear anchors.
And the R32 has single piston calipers at all four corners, just like the GTI (only the R32 are bigger!).
And yes, 4/6/8/10 pot calipers often have differing diameter pistons - for a variety of reasons. Pedal 'feel' and pad wear are the usual cited reasons, but also brake noise, physically 'packaging' the pistons correctly in the caliper, and lastly, fashion can all be cited.
They made custom bells & carriers for the AP discs & calipers. I sent them back as I wasn't happy with the clearance on the lower ball joint. IMO they needed a 20mm reduction on the bell offset and the carrier altering accordingly - so, I wouldn't bother asking them TBH. I do however know someone who can engineer carriers, if you have CAD to spec.
Nice, keep us updated when you can, thanks. :happy2: :smiley:
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Ok, I'll get lost if I do quotes on quotes..
*Bias, I understand what you mean now :happy2: - I think somewhere like VWR would be a good place to start with this to understand what settings are required, obviously with their road car developments, as they'll run traditional mechanical bias switches on a race car. I'm not confident with the web's guesswork or dealer knowledge. Do you have any experience in changing the parameters, or is it just something you're aware of?
*R32 rears. Yes, as in the full rear set up, calipers/cariers/discs/splash guards. As mentioned it's just the 3rd hole that's an issue... but I still want to physically see it for peace of mind.
*RS4 fronts. Sorry, I didn't mean I was having them.. they're just "going on" in general. From what I understand there may be a small & easy carrier mod, but it utilises all OEM kit - it may be RS4 calipers and RS6 discs or something? You'd need to ask AMD.
*Piston size. You confused me here as you were talking about the Autotech kit and I just assumed you were talking about the front AP's they do that'd I've bought recently and why I went into the garb about them not being right - I now see you meant the rear kit they do. D'oh!
So, I'd have thought you'd not be able to use the GTI rear caliper as it's designed for a single disc, not the much thicker vented disc of the R32...? that's not to say they're might be using the one from a MKIV Anniversary instead because it's already red and designed for the vented brakes that had? Pure speculation on my part, I don't know.
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Ok, I'll get lost if I do quotes on quotes..
*Bias, I understand what you mean now :happy2: - I think somewhere like VWR would be a good place to start with this to understand what settings are required, obviously with their road car developments, as they'll run traditional mechanical bias switches on a race car. I'm not confident with the web's guesswork or dealer knowledge. Do you have any experience in changing the parameters, or is it just something you're aware of?
*R32 rears. Yes, as in the full rear set up, calipers/cariers/discs/splash guards. As mentioned it's just the 3rd hole that's an issue... but I still want to physically see it for peace of mind.
*RS4 fronts. Sorry, I didn't mean I was having them.. they're just "going on" in general. From what I understand there may be a small & easy carrier mod, but it utilises all OEM kit - it may be RS4 calipers and RS6 discs or something? You'd need to ask AMD.
*Piston size. You confused me here as you were talking about the Autotech kit and I just assumed you were talking about the front AP's they do that'd I've bought recently and why I went into the garb about them not being right - I now see you meant the rear kit they do. D'oh!
So, I'd have thought you'd not be able to use the GTI rear caliper as it's designed for a single disc, not the much thicker vented disc of the R32...? that's not to say they're might be using the one from a MKIV Anniversary instead because it's already red and designed for the vented brakes that had? Pure speculation on my part, I don't know.
Crap - this moved on a lot!
Erm, in brief:
Brake bias, I don't know anyone who knows how to change it via the ECU, so I'll chose the physical method instead... that's not poo-pooing your idea - just makes more sense to me.
You cant actually 'adjust' the bias in the ECU. But what it does do is basically re-define the default bias, depending on what physical hardware is at each end. So if we just stick with the same size rear anchors, and look at differing front anchors - then a 312mm disc will provide more effective braking effort for the same pedal pressure as a 286mm, and a 345mm disc will be more than the 312 and the 286. But because the bias is actually controlled electronically, rather than by old skool pressure limiting valves or load sensing valves - then any 'change' to disc performance at one end, which isn't matched by a (proportionately) equal change at the other - well this can seriously upset the bias - or brake balance.
Detail here: http://wiki.ross-tech.com/index.php/VW_Golf_%281K%29_Brake_Electronics_%28MK60%29
R32 rears go on ok, although the splash guard will only locate to 2 holes instead of 3. I haven't done the mod myself, so until I do then that isn't gospel... but seemingly plenty of others have.
As in - R32 rear calipers, discs, etc - or just the discs?
RS4 fronts are going on, it's being done by AMD and others - I have no idea what's involved to say if it's a simple or chisel & hammer job??
The caliper mounts will be quite different, as will the disc 'bells' - so some 're-engineering' will be required. I take it you arn't going for the Ceramics off the RS4? :chicken: :evilgrin:
Not sure what you mean on the caliper piston size point - the APs are 6-pots and the R32's are twin, so I wouldn't necessarily expect the same sizes, don't 6/8-pots usually have staggered size pistons for "feel" and even pad wear??
I'm referring to the actual diameter of the piston in the caliper, and specifically for the rears - and this is all relevent to the hydraulic advantages formulae. The dia of the R32 rear piston is 41mm, whereas the GTI has a 38mm piston. If those Autotech rear kits are using a standard caliper with a 38mm piston, then because the piston is smaller than the pukka R32 calipers, the rear brakes from Autotech will not be as effective as genuine R32 rear anchors.
And the R32 has single piston calipers at all four corners, just like the GTI (only the R32 are bigger!).
And yes, 4/6/8/10 pot calipers often have differing diameter pistons - for a variety of reasons. Pedal 'feel' and pad wear are the usual cited reasons, but also brake noise, physically 'packaging' the pistons correctly in the caliper, and lastly, fashion can all be cited.
They made custom bells & carriers for the AP discs & calipers. I sent them back as I wasn't happy with the clearance on the lower ball joint. IMO they needed a 20mm reduction on the bell offset and the carrier altering accordingly - so, I wouldn't bother asking them TBH. I do however know someone who can engineer carriers, if you have CAD to spec.
Nice, keep us updated when you can, thanks. :happy2: :smiley:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Ftomashandmilly%2FDaft_stuff%2F1072.gif&hash=f82c747d292ce69bf34a3a7bd9e6e7c6085d7eea)
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Ok, I'll get lost if I do quotes on quotes..
LOL !!
*Bias, I understand what you mean now :happy2: - I think somewhere like VWR would be a good place to start with this to understand what settings are required, obviously with their road car developments, as they'll run traditional mechanical bias switches on a race car. I'm not confident with the web's guesswork or dealer knowledge. Do you have any experience in changing the parameters, or is it just something you're aware of?
I have no personal experience of this, mainly because the anchors on the GTI are still standard, however, there was an in-depth thread on the Vortex.
Re your comments on VWR, and the likes - I personally very much doubt they would know about this thing. I raised a thread on the other GTI forum a while back, prompting the likes of RedRobin and Hurdy (along with others) who already had front big brake kits - asking them to check with their suppliers/installers. Awesome GTI, along with AP Racing both seemed to completely bury their heads in the sand, and seemed to completely dismiss the issue without further investigation! :surprised: Anyhow, you can lead a horse to water . . . . :wink:
If you scan over this newly updated thread - http://www.golfgtiforum.co.uk/index.php?topic=54324 - the first manual in the brakes section details the issue (page 5 of 58 if you are short of time :wink:).
*R32 rears. Yes, as in the full rear set up, calipers/cariers/discs/splash guards. As mentioned it's just the 3rd hole that's an issue... but I still want to physically see it for peace of mind.
OK, understood. :happy2: Yup, I am waiting for some real pictures too - before I decide on my own plan of action.
*RS4 fronts. Sorry, I didn't mean I was having them.. they're just "going on" in general. From what I understand there may be a small & easy carrier mod, but it utilises all OEM kit - it may be RS4 calipers and RS6 discs or something? You'd need to ask AMD.
Ahhhh, OK, no worries, thanks for clarifying. :smiley:
*Piston size. You confused me here as you were talking about the Autotech kit and I just assumed you were talking about the front AP's they do that'd I've bought recently and why I went into the garb about them not being right - I now see you meant the rear kit they do. D'oh!
LOL, OK, cool!
So, I'd have thought you'd not be able to use the GTI rear caliper as it's designed for a single disc, not the much thicker vented disc of the R32...? that's not to say they're might be using the one from a MKIV Anniversary instead because it's already red and designed for the vented brakes that had? Pure speculation on my part, I don't know.
Ahhhh, my turn for admission of numpty-ness. I completely forgot about the rear disc thickneses! :ashamed:
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(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Ftomashandmilly%2FDaft_stuff%2F1072.gif&hash=f82c747d292ce69bf34a3a7bd9e6e7c6085d7eea)
Too much for the cat, eh? :laugh:
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to dig this up again, sorry, im going for it! ill report back my finding, next week probably! ;)
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Nice one, still got round to painting mine - no garage at the mo and if I do it inside I'll get linched
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I bet, i guess the house is still undergoing a lot of work? hope its going to plan :happy2:
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I bet, i guess the house is still undergoing a lot of work? hope its going to plan :happy2:
Getting there, couple of slow days due to the weather but still on target, its a race to what happens first - baby or building!
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I now have these fitted , if only everything in life was as easy .
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nice 1, well done, I take it its not a problem?
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Nice one well done
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No problem , just need to drill a hole in the splash gaurd to fit the third bolt to it . A couple of washers as spacers , a longer bolt and it looks factory .
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:happy2: o dear egg on the face for someone :laugh:
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Thats great, looks like I'll put the full set on mine then being as I have them!
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Very interesting thread :happy2:
I haven't bothered, as yet, to investigate with either AP Racing or VWR about 'front-rear brake balance', or whatever the correct term is. I tend to go on the principle that if it works, don't mend it and I have more faith in AP Racing's specialist experience than some - I find it too difficult to believe that they wouldn't be aware of such considerations and consequently wouldn't do something about it if they thought it important. But, I'm keeping an open mind and will eventually get around to asking (particularly if I end up in a hedge!).
I'm curious whether anyone here has been experiencing any rear brake problems to merit/justify bothering with this conversion.
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You can never have enough brakes RR!
I think it only warrants certain applications - balancing out bigger fronts, if you work them hard (tracks etc) and if you get them cheap enough!! VWR do a 2-piece rear conversion so they must see some benefit in improving the rears?
Wonder what else absolutely 100% won't work on our cars :wink:
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^^^^
Yes, it's far better to have brakes and not need them, than to need them and not have them! As most people know, I have regular contact with VWR so I'll ask them when we next speak.
What is it I wrote in my RED INK Warm Welcome poster? - Something about changing parts which work perfectly well.... [any excuse to post a pic]
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi456.photobucket.com%2Falbums%2Fqq281%2Fpreeto_f07%2Ftop-10-most-overused-words_8.jpg&hash=1dfa0e985812e11c6704ca9150b5a094b170785d)
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You would only ever upgrade the rears after upgrading fronts. The R32 setup we know is a good match as its on a car already so I dont see any harm in it. With other front setups I would ook into a decent match, not just choose any.
I got a complete set too so why not :happy2:
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You would only ever upgrade the rears after upgrading fronts. The R32 setup we know is a good match as its on a car already so I dont see any harm in it. With other front setups I would look into a decent match, not just choose any.
....Very good point :happy2:
In my case I don't do track and my front AP's have hauled me smoooothly to a stop in all sorts of conditions including from about 130 mph (GPS). AP's Senior Race Engineer told me that I'd be wasting my money upgrading the rear brakes as well for fast road use (although they do offer rear brakes).
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In your case RR I wouldnt be bothered, I would just bought the front set if would have split them as I wasnt too bothered about the rear.
In 99% of cases a front upgrade is all you need.
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I do trackdays. Running AP6 pots up front, and the standard 286 at the rear's. Not noticed any issues.. although on the last trackday the back wobbled a bit under hard braking unless I was in a straight line??
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For those of you looking for a guide i found this earlier. Might be of use even though it states that the splash guards dont fit even thought i fitted mine .
http://worldimpex.com/assets/partdocuments/DIY_Rear_310mm_R32-1.pdf (http://worldimpex.com/assets/partdocuments/DIY_Rear_310mm_R32-1.pdf)
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great guide!
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Saves me having the write one!!!
The only step I did differently was the splash guard, the Std Ed30/GTi one can be modified to suit, just bend it gently to clear.
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fv211%2Fstokeballoon%2FDSCF0051.jpg&hash=f55e6c8d612efb2dc13ccaf457445dde2d433144)
The pic shows how i tweaked the guard to provide clearance.
Great guide though, i was halfway through mine too!
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http://www.dropfiles.net//files/207/Volkswagen%20Golf%20Mk%20V%20Arm%20Rest%20Retrofit%20_Compressed_.pdf (http://www.dropfiles.net//files/207/Volkswagen%20Golf%20Mk%20V%20Arm%20Rest%20Retrofit%20_Compressed_.pdf)
I used the above to refit the Armrest, you need to remove this to get to the Handbrake cable adjuster. Wish I had of found it when i was removing the armrest. It could be used in reverse to aid removal.
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I've had problems with splash-guards rubbing on both front and rear brakes, but as you say, they can be easily bent away.