Page 7 of 7 FirstFirst 1234567
Results 151 to 159 of 159

Thread: E3 Racer

  1. #151
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,263
    My Cars
    1x633, 1x E3 2 DR Racer
    What's left of my diff.

    Time to go for an e28 rear subframe so I can take advantage of a greater selection of LSD's. Currently, In Aus, I can only find two sideloader LSD's, with the wrong ratio's and at $2.5k each.

    IMG-20190814-WA0000.jpg

    IMG-20190814-WA0004.jpg
    1977 633 CSi RHD Euro. S38B38 3.8L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 390hp, 331lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

  2. #152
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,263
    My Cars
    1x633, 1x E3 2 DR Racer
    Now secured a good e28 rear subframe and a new race (60% lock, steel shims etc) LSD, hopefully 3.45 but confirming. These should be at the mechanics within the next two weeks. Photos to come.
    1977 633 CSi RHD Euro. S38B38 3.8L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 390hp, 331lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

  3. #153
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,263
    My Cars
    1x633, 1x E3 2 DR Racer
    New race LSD and rear sub-frame are here. Needs a new wheel bearing so will get both done.

    12121.jpg

    122211221.jpg
    1977 633 CSi RHD Euro. S38B38 3.8L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 390hp, 331lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

  4. #154
    Join Date
    Dec 2010
    Location
    Fairfield, CA
    Posts
    67
    My Cars
    72 Bavaria
    If you can find the rear cover from an early E28 ( with the mount centered on the cover ) it will bolt right in using the stock holes.

    cuiQKgc.jpg

  5. #155
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,263
    My Cars
    1x633, 1x E3 2 DR Racer
    Aware of this but the racing diff at 60% lock as a different rear plate, longer. Appreciate the suggestion but tried and failed on that one. So I'll get a specialist welder I know to modify the subframe.
    1977 633 CSi RHD Euro. S38B38 3.8L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 390hp, 331lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

  6. #156
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,263
    My Cars
    1x633, 1x E3 2 DR Racer
    Nearly there with the diff swap. We are cutting off the section of e28 rear subframe that bolts to the e28 diff, and welding to the e3 subframe. We will then set the diff mounting to accept rear plates with either the offset bolt mount or the bolt mount in the centre.

    I've got a stock 25% locked 3.45 LSD to go in and the race LSD with the 60% lock. The two LSD's are pictured besides each other. Note the beefed up steel flanges on the race LSD.

    We will strengthen the floor mounting prior to fitting the LSD's.

    Post completion I'll be able to swap e28 medium case diff's in and out so a replacement will be a 30 min swap and not a 5 day fabrication.

    20191109_091629.jpg

    20191109_091636.jpg

    20191109_091639.jpg

    20191109_091648.jpg
    1977 633 CSi RHD Euro. S38B38 3.8L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 390hp, 331lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

  7. #157
    Join Date
    Jan 2020
    Location
    RU
    Posts
    6
    My Cars
    without car
    excellent.. I didn't think that E3 could look so sporty. only one question to you, exhaust headers it is still with coated or aluminium alloy?

  8. #158
    Join Date
    Aug 2008
    Location
    Sydney Australa
    Posts
    2,263
    My Cars
    1x633, 1x E3 2 DR Racer
    ceramic coated. Car should be back ont he track in a month or two. fitting the e28 rear subframe is taking time. The race diff is forcing additional works and we need to weld the e28 subframe. We also need to shorten the propshaft as we cannot push the race diff any further to the rear as it is just a few mm's from the fuel tank.
    1977 633 CSi RHD Euro. S38B38 3.8L M5 Transplant. 5 Speed Getrag Dogleg. 3.73 LSD. 390hp, 331lb/ft
    1971 3.0CS E3 2dr Alpina Special Coupe Racer, 347hp, 295lb/ft

  9. #159
    Join Date
    Jan 2020
    Location
    RU
    Posts
    6
    My Cars
    without car
    I'm accidentally got to your post when searched here E3 S38B38 with weber carbs, it is also a racing car. If you haven't seen this then I recommend you, i think it will be interesting for you.

    As I said, I couldn't have imagine that the E3 could look so sporty before as I saw your car. I noticed that it is coupe and went to search more pics and found that E3 from factory only sedans. after found where you told you that your E3 is shortened by 33 centimeters.. It's amazing custom really

    good luck to swap subframe of e28. it will be interesting to see it on the track in work.
    Last edited by bmw emw; 02-06-2020 at 04:46 AM.

Page 7 of 7 FirstFirst 1234567

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •