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Thread: Swapped injectors

  1. #1
    Join Date
    Jul 2010
    Location
    Leland, NC
    Posts
    828
    My Cars
    85 €735i 08 550i/6

    Swapped injectors

    I did the gen 3 injector swap and reconnected the cold start valve. I went with the yellow ones. Idles better than any m30 I have ever owned. Off idle awesome. Hypermiling to aggressive driving all better than with the old injectors. For some reason, it takes longer to start cold or hot.

    Sent from my LGLS755 using Tapatalk

  2. #2
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,492
    My Cars
    1983/84/85 745i

    Thumbs up

    What condition were the old sticks in? If way old and never serviced, that is a pretty common reaction to new ones.

    How is that diff swap working for you?
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  3. #3
    Join Date
    Jul 2010
    Location
    Leland, NC
    Posts
    828
    My Cars
    85 €735i 08 550i/6
    Turned 240,000 on a road trip to Greensboro before retiring them. Diff swap is working great, no big drop off in mileage. If anything better in town, slightly lower on the highway.

  4. #4
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,492
    My Cars
    1983/84/85 745i

    Thumbs up

    Right on! Diff swaps are a must in the NA cars.

    You have the 8:1 motor factory right? Chip that -059 for a bit more. Aside from that, there is nothing you can do that is inexpensive.
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  5. #5
    Join Date
    Mar 2006
    Location
    Sacramento, CA
    Posts
    935
    My Cars
    87 535i/84 €735i/8
    Is it a 10:1 motor?
    Mine also reacted quite happily to the newer injectors.
    --Jay3->Sic gorgiamus allos subjectatos nunc
    84 €735i manual, 88 528e/i
    Motronic 1 and 1.3 wiring
    Transmission & Diff gearing sheet

  6. #6
    Join Date
    Jul 2010
    Location
    Leland, NC
    Posts
    828
    My Cars
    85 €735i 08 550i/6
    I have the 8:1 factory. I already have the Conforti (Turner Motorsports) chip.

    - - - Updated - - -

    I do have a fresh rebuild in the garage, but the stock motor is running too good to mess with it.

  7. #7
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,492
    My Cars
    1983/84/85 745i

    Thumbs up

    I have only seen four Euro NA E23s with the 8:1 factory. His, my old one. An '86 for sale in Houston and an '85 with nutria buffalo in DFW.
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



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