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How to retro-fit the 312mm front brakes to a Mk7 Golf

mayday_soc

New member
Location
New England
So after reading through this thread more than a few times, what’s the consensus on NA TDI models? (they come with steel hubs and 55mm calipers). Can we swap to 312mm rotors and the gti calipers or do we have to swap out hubs and master cylinders too?
 

golfdave

Drag Racing Champion
Location
Scotland (U.K.)
Ride
MK7 Golf GT Estate
So after reading through this thread more than a few times, what’s the consensus on NA TDI models? (they come with steel hubs and 55mm calipers). Can we swap to 312mm rotors and the gti calipers or do we have to swap out hubs and master cylinders too?

GTI 312mm discs & 57mm piston calipers will straight fit onto a steel hub....like mine...just I have non painted 57mm calipers which came with my steel hubs.....so I just required the bigger carrier to space the caliper further out to fit the bigger 312mm discs....


as for master cylinder I think you will be ok..

so just get GTI 312mm discs, pads, calipers, caliper carrier....
 

mayday_soc

New member
Location
New England
GTI 312mm discs & 57mm piston calipers will straight fit onto a steel hub....like mine...just I have non painted 57mm calipers which came with my steel hubs.....so I just required the bigger carrier to space the caliper further out to fit the bigger 312mm discs....


as for master cylinder I think you will be ok..

so just get GTI 312mm discs, pads, calipers, caliper carrier....
Thank you for your response. I saw the link for the non painted earlier in the thread and that’s the route I’m going to go. Will EBC green pads be a good match for them?
 

golfdave

Drag Racing Champion
Location
Scotland (U.K.)
Ride
MK7 Golf GT Estate
Thank you for your response. I saw the link for the non painted earlier in the thread and that’s the route I’m going to go. Will EBC green pads be a good match for them?
avoid those pads..I used to have, but they separated from the backing plates..so did my mates!...for standard might as well get plain Brembo or ATE,
 

mayday_soc

New member
Location
New England
GTI 312mm discs & 57mm piston calipers will straight fit onto a steel hub....like mine...just I have non painted 57mm calipers which came with my steel hubs.....so I just required the bigger carrier to space the caliper further out to fit the bigger 312mm discs....


as for master cylinder I think you will be ok..

so just get GTI 312mm discs, pads, calipers, caliper carrier....
Please forgive my ignorance but does the 199$ eBay link most people have been using include the correct carrier? ex:


https://www.ebay.com/itm/pair-brake-calipers-front-312mm-VW-Golf-Mk7-Touran-5T-Audi-A3-8V-Seat-Leon-5F/143303620755?epid=6004258608&hash=item215d8fb893:g:wtYAAOSwYNdcbYVP
 

golfdave

Drag Racing Champion
Location
Scotland (U.K.)
Ride
MK7 Golf GT Estate

mayday_soc

New member
Location
New England
So I lowered my new to me dieselgate NAR TDI last week and figured I’d do the brake upgrade at the same time. I ordered all the parts/replacement stretch bolts in advance. Per the VW parts website I’m supposed to have calipers ending in 123/124 which this retrofit in not designed for. Turns out I already had 57mm on my calipers. So to any other NAR TDI owners out there you might want to check yours first and save the $199 on carries/calipers. You can see in one of the pics the caliper I took off with the 57 right next to the new one and both the calipers and carriers appear to be identical. I had completely finished the job before I even thought to look. I thought for sure from everything I read I would’ve had a 55 on my original calipers.

I used factory akebono pads, none of that fancy stuff, but I did do the the crossdrilled slotted rotors for esthetics due to my wheel choice. I forgot to weigh the before/after calipers but the wheel/tire savings was give or take 10lbs. 18” Durban’s weighted in at 21.7kg/47.8lbs and Neuspeed rse05 17x8 with 235/45 weighed in at 16.8kg/37.0lbs per my convert app.

B8s with HR springs feel great. I had some slight rear rubbing with all 4 Durban’s, old parts, spare tire, and tools in the back. After unloading and driving with passengers I haven’t rubbed since.

The difference in the braking is astronomical and that initial sticky grab every time I touch the brake pedal is long gone. I have not done any hard braking yet. Akebono recommends 400 miles of moderate braking first.

Thank you GolfDave for posting this and for Responding to my questions. Here’s a few pics.
FDD05D03-98FF-4B5F-9941-B2BF44A9AAC7.jpeg
F9DF8D30-542C-4196-B6AB-4BFA9F918A99.jpeg
68478543-F0FB-4EB8-A3B6-F21723DDACD1.jpeg
DE1C3470-0B4E-4BE2-B674-CDC67BB42A9D.jpeg
8A90FB48-539C-4014-B2FF-77D680481296.jpeg
 

Elwood

3-7-77
Location
Long Beach, CA
Alright. Someone else with 17s. By the way, I experienced "that initial sticky grab every time I touch the brake pedal" after I did this mod. It was recently corrected when I flushed out all the old brake fluid.
 

tigeo

Go Kart Champion
Shouldn't be elsewhere as its mainly the ABS module (can't see why any other module would need the info as it gets it from the ABS unit)...I need to get out & have another VCDS bash at the car,....It could be a "fixed" parameter which is linked to component protection (totally wild guess)
Did you ever play around with this setting anymore/figure out why it won't allow you to change it?
 

golfdave

Drag Racing Champion
Location
Scotland (U.K.)
Ride
MK7 Golf GT Estate
Did you ever play around with this setting anymore/figure out why it won't allow you to change it?
No not had a play...but I think there is a "fail safe" in VCDS which stops certain functions....but looking on the Rosstech site there was a work around by ticking the other box when the pop up window occurs....

I'm head down will writing for myself & my mum as our solicitors who I instructed back in January fecked up & I had to fire them....so doing it myself...also sorting out loads of photographic stuff...about 1yr behind on that!!!...
 
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