The one I got had a 23.8mm so I got myself the S4 one 25.4mm just because... Im sure the 23.8mm is enough to do the job tho.
Announcement
Collapse
No announcement yet.
audi a4 1.8t booster/mc *update it's installed!*
Collapse
X
-
Originally posted by evandael View Postjust a heads up, this same part comes on 1.8T passat B5's, 2.7T Audi A6's and S4's, with either a 23.8mm master or 25.4mm master. i picked up a booster/mc the other day from an A6 for $60 :up:
Comment
-
As an FYI, make sure you match the booster to the MC. In 99, they switched them out and they are NOT dimensionally interchangeable. (The early one bolts up to the late booster, but you will have a lot of empty pedal travel before it actually brakes.)2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
.....aaaaaaaaand another VERY important piece of information:
If you bottom out the master cylinder, it's trash. Apparently the Audi guys toss a piece of 2x4 under the pedal when bleeding the brakes. You also need to be very careful after swapping pads. Absolutely fucking bizarre. Unfortunately, there doesn't seem to be anything else that's close to the diameter, or I would toss it.
Edit: And by "trash," I mean that it can't muster enough brake pressure to stop me from rotating a front wheel one handed.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
Originally posted by ForcedFirebird View PostMechanically speaking, how would bottoming it out trash it? Seals rip while passing an opening?
Either way, it's kind of important to be aware of. The booster is roughly an inch smaller in diameter than the iX, so it's a huge clearance improvement for me. It makes it actually possible to use my (modified) S50B32 manifold.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
Anyone have any updates on how this feels while driven? I've got the UUC big brakes on my E30, with the 7er master cylinder. Right now my brake pedal feel sucks. I have to stand on my brakes to slow down. Its very firm but there isn't a lot of stopping without tons of pressure. I hate it. I want more boost, wondering how this setup feels as I'm thinking of going to it when I put my S50 in.
Comment
-
So far, awful. No matter what I do, I can't get it to bleed. On top of that, I have now had a second booster that appears to be leaky as fuck.
It's looking like I will be going back to the 924 booster, unless I can figure out another solution.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
I'm trying a Mercedes W203 C230 booster next. Same size, but a much better master cylinder match. (23/20 and 25/20 available).
If that doesn't work out, I think it'll be a firewall mounted and slid over iX booster.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
Originally posted by nrubenstein View PostI'm trying a Mercedes W203 C230 booster next. Same size, but a much better master cylinder match. (23/20 and 25/20 available).
If that doesn't work out, I think it'll be a firewall mounted and slid over iX booster.Shawn @ Bimmerbuddies
Bimmerbuddies LLC
717-388-1256
2971a Roundtop Rd, Middletown PA 17057
bimmerbuddiesllc@gmail.com
Comment
-
Originally posted by SmokeE30 View Postwhy would an ix booster need to be slotted over? you running a non stock intake manifold?2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
What's the part number on that thing
Sent from my iPhone using Tapatalkmy build thread http://www.r3vlimited.com/board/showthread.php?t=309778
Comment
-
Originally posted by nrubenstein View PostI'm trying a Mercedes W203 C230 booster next. Same size, but a much better master cylinder match. (23/20 and 25/20 available).
If that doesn't work out, I think it'll be a firewall mounted and slid over iX booster.
iX booster it is. It'll be interesting to see how the thing dynos. Hopefully I haven't lost too much power.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
Originally posted by mtlbloodshot View PostThis booster with an upgraded 25.4 mm S4 MC feels amazing on the pedal. I haven't driven the car yet but just compressing the pedal has a good feeling to it.
I do have a question regarding the MK3 reservoir, does it have a connection for the clutch? The pictures in this thread did not show whether it has it or not.'90 325is Schwarz
5 lug'd 24V Turbo on VEMS
Comment
Comment