A Guide To Tuning & Performance Upgrades for 4-Cylinder M4x Engines - Page 5
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  1. #41
    BFI Apprentice
    Shaz86's Avatar
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    Nov 2014
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    London
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    28
    Car Specs:
    Year
    2005
    Model
    E60 M Sport
    Engine
    M47
    Fuel
    Diesel
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    Thanked 6 Times in 6 Posts


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    Great write up!

  2. #42
    Unverified Member
    Joe422's Avatar
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    Sep 2015
    Location
    Torrance
    Posts
    1
    Car Specs:
    Year
    1997, 2003
    Model
    E37, E39
    Engine
    M44, S62
    Fuel
    Gasoline
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    regarding lightweight flywheel, and uprated clutch...

    Hi, New to this forum here, but glad to see some info for the M44's.

    I have a '97 Z3 1.9 M44 with DASC, and am running a Fidanza E36 M3 lightweight alum flywheel, E36 M3 Pressure plate, and E34 M5 sprung clutch friction disk, and it all came together perfect.
    Good grip, no chatter, and so far good reliability (SACHS brand clutch parts). Entire setup cost about $750 when I was gathering the parts.

    I am running a stage3 setup for the DASC, (M3 MAF, bigger injectors, smaller pully, 10-12psi, etc), and next would love to do an oil cooler setup...

    Wanda... did you ever get around to this? Hoping to see your install~

    Thanks!

  3. #43

    vafner's Avatar
    Join Date
    Jul 2015
    Location
    israel
    Posts
    2
    Car Specs:
    Year
    2001
    Model
    318i
    Engine
    m43
    Fuel
    petrol
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    0
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    hi,

    Thank you all for valuable information.-img_20151119_192325-jpg
    I am in a middle of my own project on my 2001 318i 1.9 m43 engine.
    First I would like to ask why all pictures are gone ? it was there before.
    Did any one add turbo to the m43 and uses the original manifold with adapter?
    -img_20151119_192339-jpg
    -img_20151119_192333-jpg
    this is a work in progress.

  4. #44

    vafner's Avatar
    Join Date
    Jul 2015
    Location
    israel
    Posts
    2
    Car Specs:
    Year
    2001
    Model
    318i
    Engine
    m43
    Fuel
    petrol
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    0
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    -img_20160205_222337-jpg-img_20160205_222337-jpg-img_20160205_222337-jpg
    Quote Originally Posted by vafner View Post
    hi,

    Thank you all for valuable information.-img_20151119_192325-jpg
    I am in a middle of my own project on my 2001 318i 1.9 m43 engine.
    First I would like to ask why all pictures are gone ? it was there before.
    Did any one add turbo to the m43 and uses the original manifold with adapter?
    -img_20151119_192339-jpg
    -img_20151119_192333-jpg
    this is a work in progress.

  5. #45
    new year, new start.
    BFI Hero
    vauxfan's Avatar
    Join Date
    Apr 2012
    Location
    york
    Posts
    1,523
    Car Specs:
    Year
    2004
    Model
    e46
    Engine
    316ti washing machine powered
    Fuel
    petrol
    Thanks
    481
    Thanked 428 Times in 319 Posts


    Typical. I have an n46 4 Pott. So I miss out on mods. 15bhp seems very high for a remap. I thought real world bhp gains for remaps on petrol are around 6bhp max?
    You said you can fit diesel turbos on petrol? Like a 320d? Where is the oil feed fed from on a car with out a turbo to start with?

  6. #46
    Unverified Member
    chuck8658's Avatar
    Join Date
    Mar 2016
    Location
    Australia
    Posts
    1
    Car Specs:
    Year
    1998
    Model
    E36
    Engine
    M44
    Fuel
    Petrol
    Thanks
    0
    Thanked 0 Times in 0 Posts


    Intake upgrade to stock M44 airbox

    I read some threads about cutting new opening ports to the stock lower airbox of M44 engine, either redirecting with hoses or just with mesh restrained opening for more air intake. Also they mentioned about removing sound isolator foams away. Logically, it sounds flaw free. But...

    Wondering if that will work regarding improving performance?

  7. #47
    BFI Member
    kreatureofhabit's Avatar
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    Dec 2013
    Location
    walesland
    Posts
    147
    Car Specs:
    Year
    2000 /1995
    Model
    e46 4dr/e36 touring
    Engine
    325i/318i
    Fuel
    petrol
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    3
    Thanked 48 Times in 41 Posts


    i suppose it comes down to how restrictive the standard airbox is once you start flowing air to a turbo, try driving it a small distance with the airbox removed,if throttle response and spool time are different enough to notice then its worth investigating freeing up the intake
    sound isolator foam? do you mean the stuff attached to the underside of the bonnet?

  8. #48

    steves99's Avatar
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    Jul 2015
    Location
    Adelaide Australia
    Posts
    1
    Car Specs:
    Year
    1994
    Model
    E36
    Engine
    M43
    Fuel
    Petrol
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    0
    Thanked 0 Times in 0 Posts


    318i M43 ECU?

    Hi all
    question about M43 ECU upgrade/replacement.
    can anyone please let me know where I can find a company the sells upgraded ECU for the M43 engine?
    I don't want to go as far as stand alone ECU but may be forced to.
    If I need to go stand alone ECU can you recommend type / brand etc.

  9. #49

    boostmoose's Avatar
    Join Date
    Dec 2016
    Location
    Estonia
    Posts
    2
    Car Specs:
    Year
    1991
    Model
    E36
    Engine
    M40B18 turbo
    Fuel
    Petrol
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    0
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    I just wanted to share a little about my m40 "project", as here's a discussion about turbocharging them

    Stock m40b18 engine,
    Camshaft from m43,
    Custom intake,
    Custom exhaust,
    KKK K29 turbo from volvo FH7 truck,
    8x440cc injectors from toyota supra,
    lightened flywheel,
    clutch plate audi 2.2 turbo(AAN),
    clutch disk m20b25(225mm),
    MS1 v2.2 ecu,
    throttle body M60b30,
    audi 2.2 turbo wastegate,
    ford focus ST intercooler,
    bosch 044 fuel pump

    Getting a little refreshment and rebuild at the moment, but before that ran 13,62s@1/4mile with 1bar of boost (so about 280bhp). That was with very rough and basic tune. Next month hoping to get it running good and also dyno-tune and test it.
    Going for atleast 400bhp, so hoping for good 12's next year





    So be like me.. do not unterestimate the power of M40 engine

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