EM TuningSky Insurance
Results 1 to 14 of 14
  1. #1
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134

    Brake upgrade question

    Basically ive sourced some S4 facelift rear calipers and carriers (just need to sort payment out) and been in touch with trig for some brackets to do the 300mm rear upgrade now my question is could i run these with 312mm upfront until i source some B6 S4 calipers as i already sourced S4 uprights just need to pick them up oh and purchase some new alloys !! But cant justify staring at some calipers and brackets till i get the front calipers etc !!
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134
    Anyone ??

    Will the rear 300mm setup fit under the rear wheels there 8j boleros ?? With the use of some spacers 20mm ??

    im presuming so as the fronts are 312mm at the mo but i understand the rear disc have differant offset and calipers sit closer to the wheel spokes.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  4. #3
    6th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    London
    Posts
    3,235
    I had 312mm audi rs4 b5 rear brakes at some point, they only fitted under 18" alloy wheels with ET 35 offset. However the handbrake cables were too tight and took some persuation to get them on ! I would say to keep the distance from cars in front and avoid hard braking with brakes this big on the rear !
    FOR SALE:
    -Golf mk 5/audi a3 1.6 FSI fuel pump, brand new genuine part boxed + seals
    -audi a3 (1998 to 2003) genuine clutch slave cylinder to fit 1.6 engines BRAND NEW
    -Rear bush press tool to fit new rear axle bushes on Golf Mk3/4, Audi a3/S3, Seat Leon/Toledo, Skoda Octavia mk 1/2 used once

  5. #4
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134
    Quote Originally Posted by adamss24 View Post
    I would say to keep the distance from cars in front and avoid hard braking with brakes this big on the rear !
    dont quite follow what you mean ?? You saying id have a poor braking impact with 312/300 or 345/300 due to the rears ???

    arnt the RS4 rears 330mm ??
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  6. #5
    6th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    London
    Posts
    3,235
    With brakes this big on the back of the car the rear tends to overtake the front ! You will also need to adjust the bias to rs4- only possible if your car has ESP ! I had b5 rs4 312mm rear brakes with 312mm front brakes for a while and i was afraid to go for a drive on motorway ! Swapped to 330 front 4 pot calipers and full geometry- had no more issues after !
    FOR SALE:
    -Golf mk 5/audi a3 1.6 FSI fuel pump, brand new genuine part boxed + seals
    -audi a3 (1998 to 2003) genuine clutch slave cylinder to fit 1.6 engines BRAND NEW
    -Rear bush press tool to fit new rear axle bushes on Golf Mk3/4, Audi a3/S3, Seat Leon/Toledo, Skoda Octavia mk 1/2 used once

  7. #6
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134
    My car doesnt have esp but iirc i think i read somewhere you can recode the abs ecu for this upgrade ???

    ok may just leave them off till i get the 345mm fronts, B5QUAT had this setup on his old TQS and loved the setup (he didnt mention coding or the likes) hence why i want to do it lol oh and they looked the dogs danglies !!!
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  8. #7
    6th Gear

    Status
    Offline
    Join Date
    Jul 2007
    Location
    London
    Posts
    3,235
    That's the problem, the ABS pump won't take new codding, i am trying to do the same to a c5 allroad tdi w reg, i have rs4 b7 front brakes and upgraded the rears to S8 280mm brakes- all plug and play, however the brakes are nowhere near as sharp as on me other c5 audi a6 running twice the power. On the a6 (fjtwelve old project car!) i have w8 passat rear brakes (280mm s8 discs and standard w8/s4 caliper carriers) and b6 s4 front brakes with grooved and drilled discs- no issues with stopping whatsoever ! Selling the front brakes so i can fit my old 4 pot ATE Power brake kit with 360mm discs and performance pads ! However i have ECS tuning caliper brackets which don't fit the ATE calipers so need to machine new brackets to fit the alloy uprights !
    FOR SALE:
    -Golf mk 5/audi a3 1.6 FSI fuel pump, brand new genuine part boxed + seals
    -audi a3 (1998 to 2003) genuine clutch slave cylinder to fit 1.6 engines BRAND NEW
    -Rear bush press tool to fit new rear axle bushes on Golf Mk3/4, Audi a3/S3, Seat Leon/Toledo, Skoda Octavia mk 1/2 used once

  9. #8
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134
    Quote Originally Posted by adamss24 View Post
    That's the problem, the ABS pump won't take new codding, i am trying to do the same to a c5 allroad tdi w reg, i have rs4 b7 front brakes and upgraded the rears to S8 280mm brakes- all plug and play, however the brakes are nowhere near as sharp as on me other c5 audi a6 running twice the power. On the a6 (fjtwelve old project car!) i have w8 passat rear brakes (280mm s8 discs and standard w8/s4 caliper carriers) and b6 s4 front brakes with grooved and drilled discs- no issues with stopping whatsoever ! Selling the front brakes so i can fit my old 4 pot ATE Power brake kit with 360mm discs and performance pads ! However i have ECS tuning caliper brackets which don't fit the ATE calipers so need to machine new brackets to fit the alloy uprights !
    what you want for the front calipers and carriers out of interest ??

    as for the rear hoses for the 300mm upgrade instead of new braided hoses could i use something like this ?? Im not good with thread sizes and an fittings so if its wrong could someone post the correct thread or an thread size id need cheers.

    AN -10 90 Degree Male to Female Forged Adapter Black | eBay
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  10. #9
    jcb
    6th Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    uk
    Posts
    4,077
    I have run B5 RS4 fronts and B5 RS4 rears and then swapped the front out to B7 Fronts
    Everyone will tell you that the master cylinder won't cope and the bias will be shot to hell and you will have poor modulation

    Have to say I never had any of these problems.
    The 8 pots up front modulate very well on a standard TQS MC. very little travel before engagement, decent amount of play to be soft on them or wham the pedal down to detach retinas!

    only time I had bias issues was with an ABS code!

  11. #10
    2nd Gear

    Status
    Offline
    Join Date
    Jul 2007
    Posts
    341
    What about fitting a traditional bias valve? Then you could fit the big rears and tone them down a bit. However with big brakes and a lot of front bias they may be quite 'grabby' and the abs module may not be happy? Not sure if bias valves and ABS modules mix.

    If your selling your 312 carriers I'd be interested.
    1999 Audi A4 1.8TQS (Standard)
    2003 VW Golf GT TDi
    2002 Audi S8 4.2 SOLD
    2004 Alfa 156 2.4JTD 20V Veloce SOLD
    2000 Audi A4 2.8 Quattro tiptronic (Electric heated seats, winter pack, lowered on H&R Springs & 18" A8 sport wheels) SOLD
    1999 Audi A4 1.9TDI 110hp (with full Audi Sports kit) SOLD

  12. #11
    "Stick a V8 in it!"

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Glenrothes, Fife, Scotland
    Posts
    15,369
    ABS pump wouldnt play well with any sort of bias valve i wouldnt think.

    Stock Facelift S4 rear calipers/disks dont fit under the standard boleros, you need about 3mm of spacing to get them on with new pads. 8J's might have a bit more space, but the 300mm conversion will push the caliper further out both towards the wheel, and radially. You might find they wont go.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  13. #12
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134
    Quote Originally Posted by aragorn View Post
    ABS pump wouldnt play well with any sort of bias valve i wouldnt think.

    Stock Facelift S4 rear calipers/disks dont fit under the standard boleros, you need about 3mm of spacing to get them on with new pads. 8J's might have a bit more space, but the 300mm conversion will push the caliper further out both towards the wheel, and radially. You might find they wont go.
    yeah i found a pic on the net and the S4 calipers are bulky as hell compared to the stock TQS rears heres the thread i found -

    Supercharged Audi and VW Forums -> 034 300mm S4 rear brake upgrade install

    it does say that they will clear 17's on 034 and it cleared 2 of 3 sets of his 17" wheels to clear his 3rd set he had to shave of some off the calipers !!
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  14. #13
    jcb
    6th Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    uk
    Posts
    4,077
    get some proper wheels on then there are no issues!

  15. #14
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,134
    Quote Originally Posted by jcb View Post
    get some proper wheels on then there are no issues!
    thats the plan anyway
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

 

 

Similar Threads

  1. Brake upgrade question!
    By staitesidestory in forum A3/S3/Sportback (8P Chassis)
    Replies: 10
    Last Post: 21st November 2010, 13:04
  2. Brake upgrade question
    By mark_20vt in forum General Technical / How To
    Replies: 1
    Last Post: 27th May 2010, 15:50
  3. Just Another Brake Upgrade Question .........
    By Stevie C in forum A3/S3/Sportback (8P Chassis)
    Replies: 30
    Last Post: 17th August 2008, 19:50
  4. Best Brake upgrade using standard wheels
    By lost_it in forum A3/S3 Forum (8L Chassis)
    Replies: 0
    Last Post: 24th April 2003, 13:28
  5. S3 Brake Upgrades - not Porsche/Brembo
    By AL_B in forum A3/S3 Forum (8L Chassis)
    Replies: 26
    Last Post: 25th January 2003, 17:05

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO