Vented rear disk on an e36 compact?

[e36 323ti]

Originally Posted by bullmand

.... keep us posted.

I have done some measurements. The 276x19mm disks fit on the 323ti drive flange hub. Also the parking brake have the same diameter. Some adapters are required, since the brake shield and caliper has to be moved 17mm outwards. Also there is different diameter on the brake carriers, so an adapter need to be build.

I guess the amount of work required is like fitting e36 m3 rear brakes on an e30, except I do not need to rebuild the parking brake due to equal diameter on the 323ti and the other e36s .

Here are some links to a guy which have fitted e36 m3 rear brakes on an e30 (he also fitted e36 m3 front brakes).

The adapters: http://www.bmwccn.no/nor/kapittel3/f...aspx?Id=314886

The rebuild: http://www.bmwccn.no/nor/kapittel3/f...aspx?Id=330089

[e36 323ti]

Update:

Drawings of adapters finished. Prototypes has been made of wood to see if it would fit and to fine tune measurements. This is doable!

The next step is to have the adapters and spacers machined.

[Mallard]

hehe, sorry to throw a spanner in the works here...


but did everyone forget about the e30??


325iX rear trailing arm and brakes... check out Realoem.com and thank me after

[Panzer_M]

wouldn't that be four-lug with a e30?

[Mallard]

yeah?.....



totally forgot tbh

[Mallard]

just had a thought..

rear trailing arms with brake carriers and brakes from the 25i.x match up..
the outputshafts and diff already on the e36 as is..
new wheelbearings for the rear arms

and bobs your uncle?

if the rear arms are the same as the e30s, why wouldnt the compact bearings fit in the rear trailing arms?

[e36 323ti]

Originally Posted by Mallard

hehe, sorry to throw a spanner in the works here...


but did everyone forget about the e30??


325iX rear trailing arm and brakes... check out Realoem.com and thank me after

I guess you mean the e30 325iX touring (258x19mm), since that is the only e30 iX with vented rear disks (at least to my ETK/euro-spec).

The rear caliper dia. on the e30 325ixT is to my knowledge Ø35mm. This will ruin the brake bias in my application.

[316i compact]

Do.we.have.any.news.in.this.project?I.am.also.interested.for.vented.rear.disks!

[e36 323ti]

Originally Posted by 316i compact

Do.we.have.any.news.in.this.project?I.am.also.interested.for.vented.rear.disks!

I am going to do it in two steps. The first step is the making of the adapters for the calipers. Then comes the making of the spacers for the brake shield/ emergency brake.

The adapters is now beeing machined. The progress is slow since the guys making it must do it in between their ordinary work. Hopefully the adapters will be ready by the end of this month.

My time frame is that everything should be ready before May this year.

[316i compact]

Thanks.for.the.info.m8.I.just.purchased.rear.trailing.arms.off.a.Z3.1.9.to.convert.to.rear.discs(fro m.drums),and.want.to.convert.to.vented.before.i.put.them.on!

[e36 323ti]

Originally Posted by 316i compact

Thanks.for.the.info.m8.I.just.purchased.rear.trailing.arms.off.a.Z3.1.9.to.convert.to.rear.discs(fro m.drums),and.want.to.convert.to.vented.before.i.put.them.on!

Are you sure Z3 1.9 rear trailing arms fit the Compact? According to my knowledge one need to use Z3 M Coupe/ M Roadster rear trailing arms on the Compact.

[316i compact]

They.are.exactly.the.same.part.number.as.the.318ti.for.sure.I.checked.it.at.realoem.many.times!
The.only.different.thing.is.the.rotors.of.the.Z3.which.widden.a.bit.the.rear.track,approx.15mm

[bullmand]

Realoem.com does show that the ti and the 1.9 Z3 use the same trailing arm, but it also shows that they use the same brake rotor, which is not vented. (272X10 mm). So if I'm reading all this correctly, you needed to switch trailing arms to convert to rotors from drums. That makes sense, but you can't go to vented rotors with just that change.

[316i compact]

Ι.bought.the.whole.trailing.arm.assembly,including.the.calipers.and.the.rotors.
Yes,both.Z3and318ti.use.the.same.trailing.arm,and.the.same.rear.subframe.Since.the.trailing.arms.are .the.same.and.the.subframe.too,where.does.the.wider.rear.track.of.the.Z3.comes.from?
I.can.only.think.of.the.rotors.They.maybe.the.same.size,272*10,but.they.are.different.part.number,wh ich.implies.to.me.that.the.wider.track.comes.from.there.Correct.me.if.i.wrong.
As.fas.as.the.vented.are.concerned,i.wanted.to.swap.to.vented.rears.before.i.put.the.trailing.arms.o n,because.it.will.be.easier.work.for.me.

[e36 323ti]

Yesterday I had a visit to the guy which is making the adapters and spacers. By the end of next week the adapters should be ready.

Then the brake shield spacers has to be made ...

Front I have decided to go for AP Racing 4 pot 330x28mm vaned (CP5200-1019) with Ferodo DS3000 track pads and DS2500 street pads. Same pad-setup rear as well.