Tech Forum : Brake upgrade

Zolika_e21

Posted Saturday, Nov 4th 9:44pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 35

Hungary
e21_M54_30

Almost finished my brake upgrade

Zolika_e21

Posted Saturday, Nov 4th 9:47pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 36

Hungary
e21_M54_30

Zolika_e21

Posted Saturday, Nov 4th 9:48pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 37

Hungary
e21_M54_30

e21enthusiast

Posted Saturday, Nov 4th 10:00pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 31

eugene,oregon
hennarot 320is,topasbraun metalic 323

amazing! lookin damn good i want installed pics! how big do those discs measure? what porsche are they off and how hard was the conversion? 5 lug would be nice!

Zolika_e21

Posted Saturday, Nov 4th 10:39pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 38

Hungary
e21_M54_30

On the front 302mm x 28mm
On the back 294mm x 19mm.

The calipers comes from Porsche 944 turbo.
The conversion not difficult.
On the front e12 hub and custom ring between the hub and the disk
On back redilled 5x120 hub and custom ring between the hub and the disk

sunbeam***

Posted Saturday, Nov 4th 11:49pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 198

wirral UK
1982 323i

Nice work, keep it coming!

Phasma

Posted Sunday, Nov 5th 9:48pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 70

Latvia, EU
E21 323i "Phantom"

Cooly!

What about front brake calipers? Are they from Porsche also?

Brake discs from Porsche too?

Zolika_e21

Posted Monday, Nov 6th 8:54am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 39

Hungary
e21_M54_30

All calipers from Porsche.

The discs come from e34 and e46 bmw.

Jason_323i

Posted Tuesday, Nov 7th 1:09am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 413

UK, Scotland
323i 2.7 tripple webber track car. Maserati Biturbo

Hi

Very good work, do you have any pictures of the caliper mounting detials

Jason

wharthog

Posted Monday, Nov 13th 7:52am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 88

SF Bay,California, USA
1982 323i, , R1150RT

a Porsche upgrade seems to have a little more cache' than a volvo upgrade... Probably cost a little more cash ay?

Seriously... nice looking work. Do update us on mounted photos and how they work.

saibot23

Posted Friday, Nov 17th 9:53pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 1

germany
e21 lumma convertible

hello, my name is Tobias and I'm from germany.
This is my low cost big brake Upgrade

The caliper fit Plug&Play no adapters need

Front: 282x25 (e24) and Opel Omega A caliper
Back: 272x19 (e24) from 633Cs

@Zolika_e21 do you need adapter to mount the porsche caliper?

Zolika_e21

Posted Saturday, Nov 18th 8:32pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 40

Hungary
e21_M54_30

@Tobias
Yes I need adapeter to mount the caliper.
It will be ready in two weeks.

What hubs are you using in the back?

saibot23

Posted Sunday, Nov 19th 12:22am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 2

germany
e21 lumma convertible

I used custom made hubs for the back, buts i heard that the back hubs from the 323i e36 compact fit but I dont test it...

Zolika_e21

Posted Sunday, Nov 19th 9:59am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 41

Hungary
e21_M54_30

I tried to use hubs from the 323i e36. Its fit but the offset is not good.

Do you have pictures of the mounting of the calipers?

saibot23

Posted Sunday, Nov 19th 10:29pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 3

germany
e21 lumma convertible

I have only a picture of the back, but I will take a pic of the front soon...

here is the back

Zolika_e21

Posted Tuesday, Nov 21st 9:20am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 42

Hungary
e21_M54_30

Are you using Opel Omega A caliper in the front?

saibot23

Posted Tuesday, Nov 21st 10:06am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 4

germany
e21 lumma convertible

Yes the front Caliper is from a Opel Omega A

Zolika_e21

Posted Tuesday, Nov 21st 8:16pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 43

Hungary
e21_M54_30

really nice work!

What main brake cylinder do you use?

saibot23

Posted Tuesday, Nov 21st 10:59pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 5

germany
e21 lumma convertible

thanks man.. First I wanted to use the Porsche Caliper aswell (996), but at the moment its to expensive for me (student..) but maybe I will upgrade the front later...

I use the e23 master brake zylinder (22,2mm) it seems to be big enough so Im quit satisfied

Himizoli

Posted Sunday, Feb 11th 1:09pm [Edit] [Quote] [IMS] [View car]

Junior Member
Post nr. 10

Hungary
320

Updates?

Zolika_e21

Posted Sunday, Feb 11th 1:19pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 46

Hungary
e21_M54_30

JJG323

Posted Sunday, Feb 11th 3:23pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 1309

Reading MA USA
1979 BMW 323i

^^Looks Great.
I wish someone could develop a wildwood front kit
with machined adaptors. Did you make those:

sunbeam***

Posted Sunday, Feb 11th 3:31pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 255

wirral UK
1982 323i

Nice to see big ass washers are still in demand!

Phasma

Posted Sunday, Feb 11th 8:43pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 94

Latvia, EU
E21 323i "Phantom"

So, is there any summary about varios 5 bolt hubs, that realy fits E21?

ArnZ

Posted Monday, Feb 12th 10:37am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 69

Qld, Australia
BMW 323i

thats awesome

wished i had big anchors lik them

Zolika_e21

Posted Tuesday, Feb 13th 6:12am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 47

Hungary
e21_M54_30

so my summary for 5 lugs:
Front
- e12 hubs
- E34 disk 302mm x 28mm
- custom ring between the hub and the disk
- custom adapters for the calipers

- custom hubs
- E46 disk 294mm x 19mm.
- custom ring between the hub and the disk
- custom adapters for the calipers

I just cant wait my 3.0 24valve engine start up

aussie323i

Posted Tuesday, Feb 13th 1:17pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 558

australia
1979 323i

Well done Zolika... looks great- we all can't wait for your 3.0L 24 valve to fire up!

Jason_323i

Posted Tuesday, Feb 13th 8:42pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 441

UK, Scotland
323i 2.7 tripple webber track car. Maserati Biturbo

Hi

Lee at massive brakes does bolt on e21 kits

brakes.com/kits.html" TARGET="_blank">http://www.massivebrakes.com/kits.html

Jason

sunbeam***

Posted Tuesday, Feb 13th 10:35pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 259

wirral UK
1982 323i

Jason_323i wrote:

Hi

Lee at massive brakes does bolt on e21 kits

Wow are those prices still correct? if they are i know where im spending my next £500.

saibot23

Posted Friday, Mar 2nd 2:59pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 6

germany
e21 lumma convertible

@Zolika are you using the original 330i gearbox? If that is the gearbox you use, what diff do you take, because the 3.45 would be a bit to short?

Tobias

Zolika_e21

Posted Friday, Mar 2nd 11:59pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 48

Hungary
e21_M54_30

Well I am using e21 Overdrive gearbox with 3.45 diff. I know it will not too long ratio but enough to 250 km/h

saibot23

Posted Saturday, Mar 3rd 10:00am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 7

germany
e21 lumma convertible

2 questions about this:

-I thought this gearbox wouldnt fit the m54 engine?

-Are you shure that this smal gearbox can handelt that much of torque?

Zolika_e21

Posted Saturday, Mar 3rd 8:51pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 49

Hungary
e21_M54_30

The original e21 5speed gearbox fit for M54.

Only I have to exchange flywheel from M54 to M20.

I am pretty sure it will handle that power. We totaly rebuild the gearbox.

I have also a E12 with M5 Engine makes almost 400Hp with the original 5 speed gearbox. It is working without any problem almost 4 years ago

saibot23

Posted Saturday, Mar 3rd 9:42pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 8

germany
e21 lumma convertible

that are good news, I really dont know that it fit... but about the power all people I aks told me that the 245 Getrag from the e21 323i cant handle more than 250Nm (so do you use stonger internals maybe from the 260 Getrag?)

Zolika_e21

Posted Saturday, Mar 3rd 11:39pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 50

Hungary
e21_M54_30

No it is the original Getrag 245. I think it will work, but we will see after the first run in the summer.

We will use a programable engine management system, so now we thinkig to put a turbocharger on the engine. We already bulding this car 1.5 years ago, so couple of months more doesnt make difference.

saibot23

Posted Sunday, Mar 4th 1:18am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 9

germany
e21 lumma convertible

sounds really interesting, cant wait to see more of this car...

but the m54 is not god for turbocharging, better use a m50 iron block ... or softturbo with a very low boost pressure

but with turbo you would defently need a stronger gearbox and maybe a stronger Differential, depending on the boost

Zolika_e21

Posted Monday, Mar 5th 4:09pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 51

Hungary
e21_M54_30

Well I didnt agree with you.

I think anykind of engine can be turbocharged, maybe it makes more preparation.
That is really true we have to make more progress on the gearbox and differential

http://www.da-motorsport.com/projeler/panos330tci/index.htm

saibot23

Posted Monday, Mar 5th 5:06pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 10

germany
e21 lumma convertible

of course you can turbocharge every engine even the m3 engine with a compression radio of than 11:1 is turbochargeable. But the questions is how much boost pressure and how reliable the engie became. Belive it or not every professional tuner uses the m50 iron block for turbocharging the m52/m54 aluminium block is not the best choice for that...

at the Da-Motorsport Kit you can read something i dont like for example the take the original compression ration bost it with 0,5bar (which is the maximum you can go with the m54 block and that cr) and they recommend only 96 Octane petrol. The increases the knocking risk, because bmw recommend 98 Octane for the original engine...
That can have 2 consequences:
1 the engine isent reliable long term
2 it wastes a plenty of petrol

And than i read some silly things when the compare supercharger with turbocharger for explame that te turbocharger spools faster

Belive me if you are willing to go for turbo you will have more fun by using the iron block

Zolika_e21

Posted Thursday, Mar 15th 8:16pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 52

Hungary
e21_M54_30

We put the M54b30 engine in the car.

Zolika_e21

Posted Sunday, Apr 8th 4:01pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 53

Hungary
e21_M54_30

Finally we are ready with the brake and suspension upgrade

melloh

Posted Sunday, Apr 8th 10:20pm [Edit] [Quote] [IMS] [View car]

Member
Post nr. 535

California, USA (San Jose)
1980 320is, 1991 318is

OMG... everything looks so clean and shiney, even the frame! I just retreated from my engine bay and the rust spots on my white paint makes my car look like a freckled scotsman just came from a tar bath...

jdench

Posted Wednesday, Jan 21st 10:56am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 212

Sussex, UK
1979 E21 323i, 1998 E36 323i touring

JJG323

Posted Thursday, Jan 22nd 12:52am [Edit] [Quote] [IMS] [View car]

Member
Post nr. 1368

Reading MA USA
1979 BMW 323i

Nice work.