Disi-MZResponse

Discussion in 'Mazdaspeed 3 Build Diaries' started by Enki, Feb 10, 2016.

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  1. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    Don't forget needing the factory gauge cluster to run
     
    Easter Bunny, via a mobile device, Oct 9, 2019
  2. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    At the end of the day it's better than the motor being blown up and junked. I would bet @masonvi could Fab up a cam plate that would allow you to install them correctly

    Edit how the hell do mentions work here
     
    Easter Bunny, via a mobile device, Oct 9, 2019
  3. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    Lol jokes on you now I know your real name. It's just a matter of time before you start getting mail filled with glitter dicks
     
    Easter Bunny, via a mobile device, Oct 9, 2019
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  4. SharksInSpace

    SharksInSpace Planets and shit. Greenie Member

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    Shane sounds like a bag of fucks. If that's the type of guy they employ and have no qualms about him being a liar, then I know who to avoid when I (never because I'm a baby) buy cams for my motor.
     
  5. Enki

    Enki Motorhead Platinum Member

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    Looks like Kelford does custom cams from blanks. If I can ever rationalize doing this, it will be a toss up between CS and custom Kelfords.
     
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  6. mangosmoothie

    mangosmoothie Platinum Member

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    so while talking about cams, can anyone re-grind the hpfp lobe for more fuel? Derrick @ cs said he looked into it and ramp angles got weird. curious if anyone else has given it some thought
     
  7. Enki

    Enki Motorhead Platinum Member

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    I think most HPFP systems use a 3 lobe cam for a reason; I do think a 4 lobe system would be better from a flow stability standpoint, and a 2 lobe system would be better for higher RPM. The best of both worlds would be a tuned system with two pumps offset properly to coincide with injection timing, or one big pump driven off a chain/belt/etc on the crank.
     
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  8. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    I had another thought about how to address this last night. Could you just have a new slot cut in the end of the cams at the correct angle? Beyond timing the motor those slots aren't structural so I don't think there would be an issue
     
    Easter Bunny, via a mobile device, Oct 10, 2019
  9. Enki

    Enki Motorhead Platinum Member

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    Sure I could, but there's some issues with even thinking about doing anything with the cams:

    1. The blind plug for the timing chain tensioner is rounded out, so the front cover has to come off completely
    2. I had issues with the timing chain tensioner bolts getting to torque spec (they aren't) and this may rear its ugly head if I begin fucking with it
    3. I'd need a degree wheel to measure actual cam timing
    4. The spring perches are installed upside down so any lift higher than what I have (if moving to another set of cams, which would be ideal) might result in actual coil bind
    5. The slot might only be off enough to result in a widening of the existing slot, which would result in no real locking of the cams
    6. Fuck crower
     
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  10. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    Well that fucking sucks
     
    Easter Bunny, via a mobile device, Oct 10, 2019
  11. Enki

    Enki Motorhead Platinum Member

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    Yeah honestly my best option is to have an engine builder build me a whole new engine and then part this one out or sell it as a core to someone after the swap. If I do that, though, I might as well go the standalone route too because Versatune can't be assed to acknowledge I exist as a customer anymore.
     
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  12. Enki

    Enki Motorhead Platinum Member

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    So minor update:
    I've been having some issues surrounding exhaust pops and strange behavior on decel (clutch in). I've adjusted the high RPM retard tables as well as the DBW tables and hopefully those issues will be resolved.

    Last map also had a degree more timing in it and made more power, so I've added another degree and redid the entire low end to be closer to stock to see if that helps driveability and MPG.

    VVT is now in full force without the sounds of piston to valve contact, and my VVT curve is aggressive as hell. I'm actually debating running it full time (even at idle) but I'm not sure if that's safe due to lower oil pressure at idle.

    I've also adjusted the MAF curve up by 5%, in line with what I'm seeing up top and at lower loads (not perfect but closer).

    EDIT:
    For anyone wondering, this is what an aggressive VVT curve looks like:
    vvt.JPG
    EDIT 2:
    Decided to take the VVT out further.
     
    Last edited: Oct 22, 2019
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  13. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    I do not believe that there is enough oil flow to actuate vvt at low rpms.
     
    Easter Bunny, via a mobile device, Oct 22, 2019
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  14. Enki

    Enki Motorhead Platinum Member

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    Even at 1100 idle? I should probably log that then and find out.
     
  15. Enki

    Enki Motorhead Platinum Member

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    August 4th:
    garbo.jpg

    Today:
    wot.jpg
     
  16. Easter Bunny

    Easter Bunny Professional Engineer Silver Member

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    Your testing my memory now. It was someone on the old forum who did a bunch of logs testing it out. Maybe @phate since he's trying to keep a k04 spooled at idle
     
    Easter Bunny, via a mobile device, Oct 23, 2019
  17. VTMongoose

    VTMongoose John/MD1032 Gold Member

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    Why not just have a used good block bored/decked and reuse the crank, rods, and pistons as-is and reinstall with some CS cams? That might be a nice compromise that could get you close to your original goal using off the shelf parts.
     
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  18. Sho

    Sho Silver Member

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    James pistons are stock bore iirc.
     
    Sho, via a mobile device, Oct 25, 2019
  19. Enki

    Enki Motorhead Platinum Member

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    Plus my block is factory new, and the pistons I have now in a stock configuration would be over 14:1 compression.

    Edit, because people forgot:

    [​IMG]

    [​IMG]
     
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  20. JohnnyTightlips

    JohnnyTightlips Platinum Member

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    They still really pretty. Why did you say the retainers need to be flipped on the head springs?
     
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