DIY Port injection set up

Discussion in 'Mazdaspeed 3/6 Fuel, NOS, Meth, & Water Injection' started by Maisonvi, Jul 11, 2016.

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  1. Clintonicms3

    Clintonicms3 Greenie Member

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    Alright that makes a lot more sense! Thanks man you are the bomb. Yea whenever you get that drawing up that’ll be awesome! I’ll try to have this all ordered. So I probably don’t need to fab up anything for the return part just have it pour back in?
    --- Double Post Merged, Feb 4, 2018 ---
    Also @Maisonvi did you have problems running your Bosch 630cc injectors? Or did they not flow enough? My goal is around 575 which is where my turbo will start to max out.
     
    Clintonicms3, via an iPhone, Feb 4, 2018
    #81
  2. Maisonvi

    Maisonvi Silver Member

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    Its hard to say about the injectors. Math said they should have been fine for my 500hp goal, but with a shitty DW pump, and the inefficient returnless system I was running, it just wasnt going to happen. I ended up getting some ID1000 for $300 brand new, so I just decided to go big and not have to worry about it.

    Also, attached is a drawing of how you would do a stock feed line and a DIY return line. This would let you use a drop in pump and the stock line as your feed still. I assume its diameter is big enough to move the fuel you need, but that might depend on your goals. Mine was only 500whp+ on my 3076 so it a modest goal compared to some.

    You can have it just dump back into the basket, you might want to add something like a hose fitting to the inside of the bulkhead fitting and then some hose so you can drain into the actual basket and it wont fly out of (you want to keep as much in the basket as you can.

    Fuel Layout Stock Feed Line.jpg
     
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  3. Clintonicms3

    Clintonicms3 Greenie Member

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    Also where on earth did you get a deal on injectors for 300?? Lol I can’t find any for less than like 480
     
    Clintonicms3, via an iPhone, Feb 5, 2018
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  4. Maisonvi

    Maisonvi Silver Member

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    I know a guy lol. Crazy Russian dude who owns a GTR by me. Same guy I got the 630cc injectors new for $100
     
  5. Clintonicms3

    Clintonicms3 Greenie Member

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    So what do the 5/16 compression fittings look like that you used? I’m having a hard time finding them :( Also curious where you have your fuel pressure regulator mounted? So many questions so little time lol
    @Maisonvi
     
    Clintonicms3, via an iPhone, Feb 5, 2018
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  6. Maisonvi

    Maisonvi Silver Member

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  7. Clintonicms3

    Clintonicms3 Greenie Member

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    If you have any pics of your fpr mounted I’d love to see that
    --- Double Post Merged, Feb 5, 2018 ---
    Also curious how your hpfp is setup too using these compression fittings @Maisonvi
     
    Last edited: Feb 6, 2018
    Clintonicms3, via an iPhone, Feb 5, 2018
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  8. Clintonicms3

    Clintonicms3 Greenie Member

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    @Maisonvi whenever you get a chance just lemme know exact positions and pictures of fuel pressure regulator and how the hpfp is hooked up I’m just really confused on this part :(
     
    Clintonicms3, via an iPhone, Feb 7, 2018
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  9. Ssinstaller

    Ssinstaller Greenie Member

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    You could simplify your plumbing considerably by using both the 6an ports on the regulator, as they are both held to set pressure.

    Routing would go:
    oem feed --- aftermarket rail --- regulator 6an port --- other regluator 6an port --- Oem HPFP. The regulator's return port goes back to the tank.
     
    Ssinstaller, via a mobile device, Feb 7, 2018
    #89
  10. Maisonvi

    Maisonvi Silver Member

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    Attached are some pics. I have it below my intake on a plate I made with my spit second controller and fan controller boxes on. The right side of the reg is coming from the rail, the bottom of the reg is the return, the left side is blocked off.

    Also I threw on a pic of how my HPFP section looks.

    That wasnt my plumbing layout, I made my own feed line, so the stock line is a return. and my FPR didnt have 6 an ports on it, they were straight thread.
     

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  11. Clintonicms3

    Clintonicms3 Greenie Member

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    Could I just put the fpr on the end of the fuel rail and have the pressure gauge on it @Maisonvi?
     
    Clintonicms3, via an iPhone, Feb 8, 2018
    #91
  12. Maisonvi

    Maisonvi Silver Member

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    I dont see why not. I thought about it, but I was worried about the weight and vibrations of it just hanging there. I added a gauge on a fitting on my PI rail as well. you can somewhat see it in the attached pic.
     

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  13. Clintonicms3

    Clintonicms3 Greenie Member

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    If you follow this make sure the fittings you get for the 90 and 45 are slide on fittings not the ones listed found out the hard way they won’t work
     
    Clintonicms3, via an iPhone, Feb 18, 2018
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  14. Maisonvi

    Maisonvi Silver Member

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    Sorry, which ones are wrong? I want to make sure I have the right parts listed.

    Sent from my SM-G950U using Tapatalk
     
    Maisonvi, via a mobile device, Feb 18, 2018
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  15. Clintonicms3

    Clintonicms3 Greenie Member

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    The 45 degree fittings and the 90s. Everything else was perfect lol but those won’t work with that hose
     
    Clintonicms3, via an iPhone, Feb 18, 2018
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  16. Clintonicms3

    Clintonicms3 Greenie Member

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    Ken @Maisonvi would be proud lol. Getting the system rolling now should be close to startup. Got the 1000cc injectors as well.
     

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    Clintonicms3, via an iPhone, Feb 21, 2018
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  17. Clintonicms3

    Clintonicms3 Greenie Member

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    C5FDA2D1-AFDF-42F1-91E3-4DF6FFF01C57.jpeg B5F5E855-FB59-41BC-A07D-2244A0717B63.jpeg So after tons of issues and stupid issues I brought on myself lol car is up and going and the return is all setup. Had to run all new lines and completely bypassed the stock feed line and ran all new lines up to 3/8. So all the flow now lol.
     
    Clintonicms3, via an iPhone, Mar 28, 2018
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  18. Maisonvi

    Maisonvi Silver Member

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    Always a fun process huh? Set up looks good!
     
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  19. Clintonicms3

    Clintonicms3 Greenie Member

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    The problem I ran into was breaking off the nipple to the stock feed line. After lots of cursing and crushing a case of beer or two I decided still out and put another bulkhead fitting in and run another line and call it good lol. Thanks for this awesome thread and write ups and advice ken. Glad to finally have the car going strong
     
    Clintonicms3, via an iPhone, Mar 29, 2018
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  20. Wilner John Agpaoa

    Wilner John Agpaoa Greenie N00B Member

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    H
    Hey man, I was wondering why is the left side of the PI rail blocked but the diagram/drawing you attached to one of the posts above is that a fitting is connected there?
     
    Wilner John Agpaoa, via a mobile device, May 29, 2018
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