Do we have 2 BNR S4 versions?

Discussion in 'Mazdaspeed 3 General Discussion' started by f1puertorico, Mar 5, 2016.

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  1. f1puertorico

    f1puertorico "I hate when I drop nuts" Greenie Member

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    Stumble upon this...
     

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    f1puertorico, via a Nexus device, Mar 5, 2016
    #1
  2. blackms3_71

    blackms3_71 Greenie Member

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    I see no difference
     
    blackms3_71, via a mobile device, Mar 5, 2016
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  3. AYOUSTIN

    AYOUSTIN Greenie Member

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    I'm guessing he's talking about the compressor cover inlet. The one picture is kind of blurry, might just be some bad quality.
     
  4. f1puertorico

    f1puertorico "I hate when I drop nuts" Greenie Member

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    The inlet taper inside while the other on doesn't taper.

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    f1puertorico, via a mobile device, Mar 5, 2016
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  5. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    Are the OD on the inlets the same?
     
  6. f1puertorico

    f1puertorico "I hate when I drop nuts" Greenie Member

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    Bryan confirmed it's a "revision". He stated that he always do small revisions on every turbo to gain efficiency.

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    f1puertorico, via a mobile device, Mar 5, 2016
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  7. Taf0422

    Taf0422 Greenie Member

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    Also early turbos have 17psi spring and later ones have 20 psi wastegate spring
     
    Taf0422, via an iPhone, Mar 5, 2016
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  8. Gandalf

    Gandalf Greenie Member

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    Some have called it a S5
     
    Gandalf, via a mobile device, Mar 5, 2016
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  9. Taf0422

    Taf0422 Greenie Member

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    Its not...don't worry. Lol


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    Taf0422, via a mobile device, Mar 5, 2016
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  10. blackms3_71

    blackms3_71 Greenie Member

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    Which is the newer one? The tapered one?
     
    blackms3_71, via a mobile device, Mar 5, 2016
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  11. Taf0422

    Taf0422 Greenie Member

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    New one is not tapered where the 1st revision has the taper


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    Taf0422, via a mobile device, Mar 6, 2016
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  12. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    So what size ID coupler do you need to connect your intake to the v1? To the v2?
     
  13. Taf0422

    Taf0422 Greenie Member

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    Still the same size. Need a 3" coupler. Its just the way he machined the inside


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    Taf0422, via a mobile device, Mar 6, 2016
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  14. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    So the inducer diameter on the compressor wheel is much larger on the v2, apparently.
     
  15. PURPFOX

    PURPFOX Greenie Member

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    HMM, Still want for stock block.
     
  16. NeVerSeen

    NeVerSeen Greenie N00B Member

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    17 psi spring pressure?? At 0 wgdc mine was at 13psi.

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    NeVerSeen, via a mobile device, May 26, 2016
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  17. blackms3_71

    blackms3_71 Greenie Member

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    I just ordered the bnr s4. How do i know what spring pressure i have.
     
    blackms3_71, via a mobile device, Jun 3, 2016
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  18. Redline

    Redline I done fucked up for the last time. BANNED Greenie Member

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    Run a base map with zeroed out wastegate duty cycle. That'll also show you if you're creeping, but that generally happens more/gets much more prominent when it's cold outside.
     
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  19. blackms3_71

    blackms3_71 Greenie Member

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    Will do thanks
     
    blackms3_71, via a mobile device, Jun 6, 2016
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  20. blackms3_71

    blackms3_71 Greenie Member

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    [​IMG][​IMG]

    Just received mine yesterday.
     
    blackms3_71, via a mobile device, Jun 14, 2016
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