M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Swaps, Turbos, Buildups => Topic started by: ose30 on October 24, 2011, 02:39:02 AM

Title: E30 brake swap
Post by: ose30 on October 24, 2011, 02:39:02 AM

We started a brake project for a friend.
Three Porsche men with Beemer parts :)

(http://i5.photobucket.com/albums/y170/olli951/BMWProject/063d7380.jpg)

Start of the Beemer brake project

First we pressed in the bearings

 (http://i5.photobucket.com/albums/y170/olli951/BMWProject/d1db4fa1.jpg)

And then E30 M3 5-lug hub with E46 rear disk

(http://i5.photobucket.com/albums/y170/olli951/BMWProject/e834209b.jpg)

Test fit Boxster caliper

(http://i5.photobucket.com/albums/y170/olli951/BMWProject/ef0b018e.jpg)

Then we measured dimensions for the adapters

 (http://i5.photobucket.com/albums/y170/olli951/BMWProject/ef21d61d.jpg)

Front end need some special parts to be able to use E36 5-lug hub

(http://i5.photobucket.com/albums/y170/olli951/BMWProject/5d4e8d7b.jpg)

With 16" E30 M3 wheel there is a lot of space with Boxster caliper. Even Beemer 15" wheel will work. I suppose we are going to use bigger front calipers

(http://i5.photobucket.com/albums/y170/olli951/BMWProject/88315a55.jpg)

Got to have similar brake set up for my own E30 1988 318I Beemer. Picked up rear disk brake control arms yesterday (my Beemer have rear drums)

(http://i5.photobucket.com/albums/y170/olli951/2d728483.jpg)

Title: E30 brake swap
Post by: DesktopDave on October 24, 2011, 09:15:07 AM

That's awesome...how did you get the e36 hub on the e30 strut, if you don't mind me asking?

Ever think about running off a few extras?  There's a lot of 7-series in salvage yards over here, might be a cheaper source for decent calipers.  If you have a CNC in that nice machine shop it'd be a cinch.

IMHO there's a good market for adapting e36 front components with e30 strut mounts.  Every 5-lug conversion I've seen is a real PITA.

Title: E30 brake swap
Post by: ose30 on October 25, 2011, 02:45:48 AM

There will be a special spacer ring between E30 strut and E36 hub, which allow a direct bolt on of these parts. Since i do more Porsches than BMWs, i have good source for Porsche brake parts. My friend also wanted to use Porsche parts. We don't have 7-series available that much, so swaps which seems to be logical and easy in the USA are not in Finland.

Title: E30 brake swap
Post by: strypt on October 26, 2011, 01:08:23 PM

It's a great setup, it's exactly what I'm using for my 318 is turbo track toy. Only I kept the 4-lug since I have a lot of rims already...:rolleyes:

15" BBS BMW rims will fit over the rear brakes but in the front I'm running 312 mm discs and there they don't...:o

Edit: My calipers are from the Boxster S/ 911 C2. Might not be exactly the same setup then..

(http://i196.photobucket.com/albums/aa93/liu_racing/Bilgrejor/bakbromsar3.jpg)
(http://i196.photobucket.com/albums/aa93/liu_racing/Bilgrejor/flgar.jpg)

Title: E30 brake swap
Post by: mr.vang on October 26, 2011, 11:52:23 PM

sick

Title: E30 brake swap
Post by: romkasponka on October 27, 2011, 01:07:56 PM

Nice workshop ;)

Title: E30 brake swap
Post by: ose30 on October 28, 2011, 03:00:30 AM

I suppose we have the same calipers. What rear rotor you are using ?  Might be possible i won't go to 5-lug after all. Would like to use 15" BMW/BBS wheel.

Title: E30 brake swap
Post by: strypt on October 28, 2011, 06:05:56 AM

I'm probably using the same rear disc as you, ventilated E46, 294 mm diameter. Can't remember exactly which model it was from since it was a couple of years ago I did the upgrade, but I believe it was from a 328.
Just drilled a new bolt pattern and lathed off the old hub guide from my old discs and used it as a spacer since the 5-lug discs has a bigger hub pilot hole.