REAR BRAKE UPGRADE ??

[trackdaze]

Does anyone know if there's a bigger rear disc that'll go straight on a 325 rear end, and retain the handbrake drum/set-up ???
I would make a spacer to sit the std rear caliper further out to suit
Also, I believe one of the 7 series master cylinder (25mm cyl)goes straight on the 325 servo but not sure which model ??

[trackdaze]

Does anyone know if there's a bigger rear disc that'll go straight on a 325 rear end, and retain the handbrake drum/set-up ???
I would make a spacer to sit the std rear caliper further out to suit
Also, I believe one of the 7 series master cylinder (25mm cyl)goes straight on the 325 servo but not sure which model ??

SORRY, Hadn't realised this question of mine had already appeared, not very good with these confusers,
Would app'te some info on m/cyl tho' ta )

[AlpineAde]

E32 735i up will do it.

[djs325]

E32 master cylinder will fit, but will need T-Piece adapter for front lines, as E30 master cylinder has twin output for front wheels, E32 has single.

[oze30]

E32 master cylinder will fit, but will need T-Piece adapter for front lines, as E30 master cylinder has twin output for front wheels, E32 has single.

Does yours have ABS DJS? All the E30's I've pulled apart have had 2 outlets, one front, one rear for the ABS block, where it splits to all 4 corners.

[djs325]

No ABS (what do I want that crap for in a race car?).

You need to pull apart some more E30s, without ABS.

[oze30]

Ahh..

Last one I had didn't have abs, just a twin M/C setup under the dash! (It also had a stonking 4.0l V8! ;) )

[dcoeinside]

Hi,

do you mean something like that? It´s a 294x19 rear disc from E46 328i with adapter for Porsche caliper. It´s also possible to fit a rear caliper from BMW like M5 E34. Fit´s under 15 inch ATS DTC rim.

For a brake upgrade you can use mastercylinder from E32, but you need T-adapter.

Regards

Christoph

[dcoeinside]

I forgot,

with this disc you can use your stock handbrake system. Drum is the same like stock 325i disc.

Christoph

[Stevin]

I used an E46 M3 rear disc and calliper combination (with custom bracket for the calliper) , but to get the handbrake to work you will need to machine the inside of the disc, which I didn't need on our race car.

[e21Jason]

Z1 disks fit but cost about £75.00 each

Jason

[e30m3cabrio]

do you have the dimensions for the brackets of the porsche calipers thanks perry[quote="dcoeinside"][url=http://www.bilder-hochladen.net/files/9ceq-1-jpg.html][img]http://www.bilder-hochladen.net/files/thumbs/9ceq-1.jpg[/img][/url]
[url=http://www.bilder-hochladen.net/files/9ceq-3-jpg.html][img]http://www.bilder-hochladen.net/files/thumbs/9ceq-3.jpg[/img][/url]

Hi,

do you mean something like that? It´s a 294x19 rear disc from E46 328i with adapter for Porsche caliper. It´s also possible to fit a rear caliper from BMW like M5 E34. Fit´s under 15 inch ATS DTC rim.

For a brake upgrade you can use mastercylinder from E32, but you need T-adapter.

Regards

Christoph[/quote]

[mccarthy]

E32 735i up will do it.

even the 740? had a look on realoem and only the 735 and 750 have same m/c part no.'s or is the 740 also a 25mm?

[nickso]

E32 735i up will do it.

even the 740? had a look on realoem and only the 735 and 750 have same m/c part no.'s or is the 740 also a 25mm?

thats been discussed a lot before. i dont think anyone has found out yet.

[AlpineAde]

E32 735i up will do it.

even the 740? had a look on realoem and only the 735 and 750 have same m/c part no.'s or is the 740 also a 25mm?

I've only ever heard of the 735 and 750 being discussed regarding this. I just assumed a continuity throughout the range. I can't say what the 740i is on the BMC front. Apologies!

[dcoeinside]

picture shows masterzylinder from E32 750 no ABS

next picture: list of cars where this masterzylinder is builded in, too

i hope i can help you

Regards

Christoph

[AlpineAde]

Excellent stuff!

[dcoeinside]

Hi,

last sunday i stay in Hockenheim for a Trackday / Touristicdriving. I had my first rollout after the winter to test the new brakesystem with Brembo calipers in front and rear. I use the original mastercylinder from 320i with 20mm/19mm but no brakebooster. The braking balance is perfect. No "overbraking" at the rear tires, normal pedalway and the brake is perfect to dose. For cars with brakebooster it will be better to use the mastercylinder of 7 E32 with 25mm. Otherwise you will have with small power on the pedal blocking wheels. The brakingpower is not so good to dose.

I think you know what i mean.

Here is a picture: