andale927's Full-Race EFR 7163 Build (Built Engine)

Discussion in 'Mazdaspeed 3 Build Diaries' started by andale927, Feb 24, 2019.

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  1. JohnnyTightlips

    JohnnyTightlips Platinum Member

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    I thought he meant dump tube so I was going with that lol. I have the Kozmic DP and it fits great on MS3 Juan.
     
  2. andale927

    andale927 Silver Member

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    Ah okay, I actually thought DTP made a downpipe as well, but I was wrong. I contacted Kozmic today and they said a batch is shipping out tomorrow. Really hope mine is in that batch lol.
     
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  3. anthony

    anthony Greenie Member

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    @andale927 On his ig looks like he makes hood dumps
     
  4. andale927

    andale927 Silver Member

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    Now that the ambient temps are dropping there is a pretty big difference in how much boost that my setup can maintain at higher RPM. The only difference in variables between these two runs is outside temperature (other than recently added WOT box and increased rev limiter):

    upload_2019-9-28_18-10-0.png

    Just thought it was interesting. Is this just the improvement in pressure ratio because of denser air at the turbo inlet or could there be something else at play?
     
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  5. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    65f is called boost season for a reason. Low enough for power high enough for traction
     
    Easter Bunny, via a mobile device, Sep 29, 2019
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  6. andale927

    andale927 Silver Member

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    Since I have no real progress to share, here are some pics:

    Picked up a Ramfab 4" Intake:
    [​IMG]

    Finally got the MV-R in the mail yesterday, feels like a pretty high quality piece:
    [​IMG]

    [​IMG]
    Put the 17.40 PSI spring set in it, hopefully won't need to go any higher.

    And finally picked up the ceramic coated parts today:
    [​IMG]
    I like how it looks way better than the original finish.

    Turbine housing:
    [​IMG]

    Also wrapped the downpipe, if you ignore the mess I think it came out okay:
    [​IMG]

    If I can catch up on PC builds during the week I should be able to do the swap on the weekend.
     
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  7. andale927

    andale927 Silver Member

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    Sorry for the late update, everything had been working against me. Finished the install a few weeks ago, then was in Germany for a week for work... Kinda hard to take pics of the turbo, but here are a few pics of the engine bay after I did a little cleanup. Still not happy with the PI lines so I'll probably re-route them at some point.
    [​IMG]

    [​IMG]

    [​IMG]

    Then I had to fix this downpipe situation so I could start tuning without getting too much attention lol:

    [​IMG]

    After the first revision I immediately ruined a rotor from neglecting regular maintenance lol, so that was another setback of a few days to get another rotor in...

    [​IMG]

    Overall I am extremely satisfied with the 5558 even though I am not done tuning yet. It feels like it spools sooner than the 7163 and it definitely has more top end. I'll probably finalize the tune tomorrow when it stops raining and post some v dyno comparisons, but here's a sneak peak:

    [​IMG]
    Edit: The above is with 10.5deg timing at 6k rpm and 12deg at 6.5k. Taking it easy until the boost map is finalized, because I might be getting close to the limits of an aeromotive 325 and 630cc aux injectors.
     
    Last edited: Oct 26, 2019
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  8. Sho

    Sho Gold Member

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    The aeromotive should have more head room.

    I was able to do this on an aeromotive stealth 325 (gen 1 pte 5862). But with larger PI injectors. I ran out of pump just over 600whp

    20180718_125159(1)-02-01.jpeg
     
    Sho, via a mobile device, Oct 27, 2019
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  9. andale927

    andale927 Silver Member

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    Yeah it seems like fueling is not an issue, I had a Walbro 450 ready to drop in, but I think I've about maxed the turbo and I am at the absolute limit of the PI, with a little bit of headroom on the DI for open loop fuel correction.

    As promised here's the final power revision:

    [​IMG]
    I did end up taking care of the lean spike at 6k, smoothed/increased the boost, and added a little more timing, but I kept spinning 4th gear with the added timing so the log is a previous revision. This log didn't seem to have any spin, but the numbers are a little high so take it with a grain of salt... I'll be hitting up the same mustang dyno I used for the 7163 in a week or two, my guess is ~550whp.

    All in all the thing feels insane now and what I imagined a BT built motor speed to feel like, AND I STILL HAVE MY SPOOL. The turbo is definitely a bit out of it's efficiency range. I have a meth injection kit sitting around so I will be adding a DO1 nozzle pre-turbo and a D03 pre-intercooler. Hoping that this will reduce the pressure drop through the intercooler and drop the effective pressure ratio at the compressor a little bit.
     
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  10. Clintb3astwood

    Clintb3astwood Gold Member

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    Sweeet sweet baby jesus, been following this thread for a bit and its impressive man!
     
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  11. andale927

    andale927 Silver Member

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    Thanks!

    I strongly suspect that there is wheel spin, so let's reserve judgement for now. I have a Dyno scheduled this upcoming Saturday, so we'll see where it's really sitting!

    Sent from my Pixel 3a XL using Tapatalk
     
    andale927, via a mobile device, Oct 28, 2019
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