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Thread: Docs custom intake

  1. #1

    Default Docs custom intake

    ok well sort of

    It started out like as a Begi cold air box.

    LTFT's were too high in the positive side for me ~ 12-14%.
    No straighteners, and the maf diameter was too big. hence the high positive figures.

    Enter a 2.5" piece of stainless pipe.
    Have it expanded with hydraulic fingers to fit exceptionally tight in the housing, (its 66mm internal wall to wall now). No straighteners (not needed on an SRI IMO, especially with the velocity stack in the filter).
    Drill out hole for Maf sensor.
    Thank Chris at Best Mufflers for doing this with no notice.
    Go home and throw stock airbox far far away. Then run it over (I thought about it)
    Fit cold air box and maf housing along with Amsoil eaAU dry filter

    Start car..






    ...remember to tighten up clamp on housing.. curse things
    Restart car.
    Take it for a drive. 100 or so k's.
    Ltft at idle = +0.8
    at low load +1.6
    high load closed loop = +2.something


    This is the closest Ive ever seen my fuel trims to being zeroed. Very happy.

    Drive to my wife's work to pick her up (her battery died this morning). Blow the doors off a Z4 trying to cut me off from the lights due to a parked car.

    Smile.


    Laugh...

    Gloat.




    Laugh some more

    Ring Chris and put shit on him.

    Make a post about it.

    Doc

  2. #2
    Join Date
    Apr 2010
    Location
    Canberra
    Posts
    9,459

    Default




  3. #3
    Join Date
    Nov 2008
    Location
    NSW
    Age
    47
    Posts
    789

    Default

    Nice work Doc

  4. #4

    Default

    okay.. well after 500ks or so

    ltft between 0 and -1.6%

    This is how the maf housing should have been stock. As my stocker was giving me -7.X% up to -10% on occasions.

    not seeing tip in knock retard either...

    Doc

  5. #5
    Join Date
    Jan 2009
    Location
    Wahroonga
    Age
    36
    Posts
    903

    Default

    Power/Fuel consumption improvement? Just curious....

  6. #6

    Default

    power.. yes...

    fuel consumption... worse cause ive been up it listening to it whistle at me ... but it should not change fuel ecconomy

    Doc

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