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Thread: New 745i turbo owner... anyone still making performance chips and modded wastegates ?

  1. #1
    Join Date
    Feb 2013
    Location
    california
    Posts
    2
    My Cars
    1984 745i turbo

    New 745i turbo owner... anyone still making performance chips and modded wastegates ?

    Hi there, I just recently purchased a 1984 745i. The grey market turbo e23 has been on my BMW bucket list for a long time and I got a good deal on it so here I am. I have just got my dash back in after fixing the vacuum HVAC system and getting my A/C working, and I am currently doing all the maintenance that was much needed such as a valve adjustment, all new vacuum lines, fuel lines, filters, cleaning the fuel injectors etc....
    I would like to start modifying the m106 to make more power but I am not having an easy time finding parts here in the states for it. I need the ECU chips to allow for more boost, I am looking to run around 10-12 psi, I know there was people modifying the stock wastegates years ago but I don't know if they are still around doing so ? I will be getting a RRFPR and a wideband and boost gauge, is there anything else needed for that range of boost ? Any info or would be greatly appreciated.

  2. #2
    Join Date
    Dec 2007
    Location
    Gilbert, Arizona
    Posts
    2,288
    My Cars
    6/83 1984 745i
    Hit Man X makes an upgraded WG
    alpinweiß on anthrazit buffalo 1984 745i, 2014 Fiesta ST, 1984 635csi 1986 635csi 1987 L6 1999 M coupe 2002 M3 1995 325i 1976 200​2, 2001 996 TT 1994 850 T5 wagon 1998 GTi VR6 1983 scirocco

  3. #3
    Join Date
    Mar 2006
    Location
    Sacramento, CA
    Posts
    935
    My Cars
    87 535i/84 €735i/8
    I've seen the prototype WG on LJs car, looked like a nice part.
    --Jay3->Sic gorgiamus allos subjectatos nunc
    84 €735i manual, 88 528e/i
    Motronic 1 and 1.3 wiring
    Transmission & Diff gearing sheet

  4. #4
    Join Date
    Dec 2015
    Location
    Eureka, CA
    Posts
    14
    My Cars
    1983 745i Silver
    I recently bought a sharknose motronic 745i that needs a lot of work and started down the same rabbit hole of restoration and to increase the power. The folks at TCD make a chip if your ECU has one eprom...some have 2 or 4. The folks in Finland make a chip as well but I haven't placed the order for it yet. I am looking into a .7 bar spring to replace in the stock waste gate in hopes of keeping the knock protection system somewhat in tact but I am new to this car and still learning.
    Last edited by roninguitars; 11-03-2017 at 02:07 AM.

  5. #5
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    Been away guys dealing with hurricane aftermath.

    Yes, I make a drop in Tial conversion. Stock base and stock valve, all Tial F38 on top...fully rebuildable, fully adjustable, ALL OEM Tial on top. Two have been sold just prior to Harvey. Bases are ready, I need to hone the valve guides and have them ceramic coated. Once that is finished, they will be ready to sell. There is a core fee on top of charge for this wastegate, I need your working (or free) wastegate in return. LJ ran it on his car for about six months all over CA to all sorts of meets, he loved it at 0.9 bar.

    Also chips. All -013 revisions. Single PROM in stock, dual PROM in stock, some four PROM in stock. There are five different four PROM boards, I am having the others burned as we speak. So I cover all revisions, also may have resurrected a dead -013 box that would not start a car.

    PM or call me for details
    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.



  6. #6
    Join Date
    Mar 2006
    Location
    Sacramento, CA
    Posts
    935
    My Cars
    87 535i/84 €735i/8
    The Hitman returns!
    Good to hear from you Eric, glad things are getting back to normal...
    --Jay3->Sic gorgiamus allos subjectatos nunc
    84 €735i manual, 88 528e/i
    Motronic 1 and 1.3 wiring
    Transmission & Diff gearing sheet

  7. #7
    Join Date
    Dec 2005
    Location
    Omaha NE
    Posts
    200
    My Cars
    84' 533i Turbo
    At 10-12psi a headgasket will also be in your future if your afr's aren't spot on & you experience detonation.

  8. #8
    Join Date
    Oct 2008
    Location
    NY
    Posts
    1,513
    My Cars
    e34 m e28 m e38 sporty
    im soooo late to this party. hitman hope you're rebounding or have rebounded well from the hurricane. I'm also looking to safely up my 745's power. pm inbound

  9. #9
    Join Date
    Jul 2017
    Location
    Brooklyn, NY, US
    Posts
    20
    My Cars
    4e31s, e30m3 e23745i
    Me too igotbank where in NY are you located? I am buying a 745iAT. How works on your car? I need someone who knows the car. Thanks Dirtboy Nay

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