CIS to EFI converter | Page 5 | FerrariChat

CIS to EFI converter

Discussion in 'Technical Q&A' started by GrigioGuy, Sep 28, 2005.

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  1. can'tdrive55

    can'tdrive55 Rookie

    Mar 10, 2006
    7
    The one major problem with this is, it will destroy the value of the car. Anything other than stock will drop the value of the car.
     
  2. DGS

    DGS Seven Time F1 World Champ
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    May 27, 2003
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    Hmm. I was told that QV intakes will directly fit the 328. Was that wrong? Are those bungs also incompatible with a QV intake?
    (edit)Never mind, I just reread the thread -- all of the QVs (3.0 and 3.2) are different from the 2v intakes.

    Depends on the buyer. Having over 1000 miles will scare off some buyers. Having something non-stock will scare off several buyers. Having "daily driver" reliability will attract other buyers.

    And if you have daily driver reliability, you're going to rack up miles pretty quickly. :D
     
  3. GrigioGuy

    GrigioGuy Splenda Daddy
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    The bung is really nice quality, it's just that the OD needs to be much larger to fit the 3.2/QV intake. Still working with the guy on a different piece, I need to get some measurements for him.
     
  4. TommyA

    TommyA Formula Junior

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    #104 TommyA, Aug 28, 2006
    Last edited by a moderator: Sep 7, 2017
    Did you have a look at the C5 injectors before you started the project?
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  5. dc308

    dc308 Rookie

    Jul 17, 2005
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    Duane Crisp
    I'm in the process of converting to efi and would like to talk with Sean if anyone knows how to get hold of him
    Thanks.
     
  6. smg2

    smg2 F1 World Champ
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    i have his cell# but it's trapped on my old hardrive. i should have the info in about a week or so.
     
  7. Steve-Race Engine

    Feb 25, 2004
    65
    Oceanside, Ca.
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    Steve Demirjian
    I sent Sean an e-mail with a link to your post.
    I'll see if I can contact him over the weekend to make sure he got the e-mail.


     
  8. luckydynes

    luckydynes F1 Rookie

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    PM'd you my number . . . your timing might be perfect.

    Sean
     
  9. luckydynes

    luckydynes F1 Rookie

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    I really like this injector . . . what is it? Are there various flow rates available?

    Thanks,

    Sean
     
  10. snj5

    snj5 F1 World Champ

    Feb 22, 2003
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    #110 snj5, Oct 29, 2006
    Last edited by a moderator: Sep 7, 2017
    With all of the interest in carb/EFI conversions, I think someone could easily manufacture a lightweight carbon fiber or aluminum intake manifold for a QV/3.2 ( only takes four pieces consisting of two mirror identical runners) that would fit a Weber 40 DCNF and a TWM throttle body (same hole/bolt pattern). The diagonally opposed pieces are the same, so only need two patterns. I think there would be a small, but avid market. Frank Capo in Australia used to do them in aluminmum (what I used with 40 DCNFs), but does not any more.

    My interest would be for a "cross ram" longer runner that fit a 40 or 45 DCOE side draft Weber (also would fit another TWM throttle body) much like a 365 GTC/4. This theoretically would significantly boost torque and response (and the sound).

    I apologize for the fuzziness, but here is a photo of the Capo DCNF/throttle body compatable manifolds on a 3.2, and a photo of a previous mock-up of an experimental cross ram manifold that was never completed by a west coast machine shop.
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  11. TommyA

    TommyA Formula Junior

    Oct 7, 2002
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    The injector is from the C5 Corvette. (98-05).
    Very popular and reliable.
    I have just started experimenting with it. Hopefully we will be able to get it far enough to have a nice mist by the time it hits the intake valves.
     
  12. enjoythemusic

    enjoythemusic F1 World Champ

    Apr 20, 2002
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    Oh man oh man... if someone can come up with a 'plug and play' system with fuel rails for Qv and the like that can be controlled by a Motec/Electromotive, etc.... Oh boy oh boy... :) :)
     
  13. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
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    When you say "far enough", are you referring to distance from the intake valve?

    I'm using Ford motorsport "purple top" injectors . . . do you know how the spray pattern is compared to these?

    To compare spray patterns, is it safe to just energize the injectors with any 12v source and observe the spray pattern or is there a possibility of damaging them without the appropriate drivers?

    Thanks,

    Sean
     
  14. TommyA

    TommyA Formula Junior

    Oct 7, 2002
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    I'm referring to the distance from the intake valve.
    You can energize them to compare spray pattern but not with 12 volts. All injectors to my knowledge work with 5 volts. Actually this is the reference voltage out of the ECU on all sensors. (1 or 2 exceptions)
     
  15. DGS

    DGS Seven Time F1 World Champ
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    "Saturated" injectors use a single voltage to operate them. "Peak and hold" injectors operate faster, but require a driver to produce the higher "opening" voltage and lower holding voltage.

    P&H injectors have lower resistance coils, usually a couple of ohms.
     
  16. luckydynes

    luckydynes F1 Rookie

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    #116 luckydynes, Dec 21, 2006
    Last edited by a moderator: Sep 7, 2017
    Hey all,

    Here's all the parts I make to convert a 2V to EFI. Getting ready to build another motor to test the dry sump system on.

    Sean
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  17. GrigioGuy

    GrigioGuy Splenda Daddy
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    #117 GrigioGuy, Oct 23, 2007
    Last edited by a moderator: Sep 7, 2017
  18. 350HPMondial

    350HPMondial F1 Veteran
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    The C5 corvette BOSCH injectors are 12V.
    And,
    You can connect them to you battery to test fire.
     
  19. luckydynes

    luckydynes F1 Rookie

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    Too late now, but I have a 4v adapter that doesn't require intake manifold mod's.

    Tillman . . . how you gonna do your fuel rails, etc.?

    Sean
     
  20. mk e

    mk e F1 World Champ

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    Sean,
    What do you get for the conversion kit? I just had a guy ask me it I could machine his intake and make fuel rails but it might make more sense to steer him you way.
     
  21. mk e

    mk e F1 World Champ

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    Did you ever post pictures of that set-up?...I heard it's way cool.

    I'm thinking I've been thinking I should have a dry sump on my car, with the new engine more than ever.
     
  22. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
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    $500-$1000 . .. keep in mind machining the intake will let you get the injectors further down in the intake runner but I haven't had a chance to energize any injectors to see how much that matters.

    I put a range in there because the fuel rail can "push" onto the top of multiple injectors since they're not sitting at an angle like the 2V . . . pushing the fuel rail onto the injectors means no fitting from rail to injectors but looks like crap IMHO . . . but cheaper. I haven't done a 4V rail yet so that's an estimate until I got a plenum and throttle body in hand.

    Sean
     
  23. luckydynes

    luckydynes F1 Rookie

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    I'll go take some . .. not sure you can use it for your new project since I used the exisitng 308 gear drive setup to drive the new pump and made a new timing cover . . . might be something you can use though.


    Edit: I took some pic's and started a thread in 308 section
     
  24. GrigioGuy

    GrigioGuy Splenda Daddy
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    #124 GrigioGuy, Sep 2, 2008
    Last edited by a moderator: Sep 7, 2017
    Ok, this has the be the world's slowest conversion -- hell, Mark and Bert have built cars from welding rods faster than I've worked on this -- but I have to say I'm excited about my latest acquisition.

    I just picked up the lowest part of the Lancia Thema 8.32 intake system (thanks Simon!), and it seems likely that it will mate pretty well with the GSXR thottle bodies :D

    Maybe November I'll finally finish this thing.
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  25. Pizzaman Chris

    Pizzaman Chris F1 Rookie

    Mar 13, 2005
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    Hey Til, anything going on with this exciting project?
     

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