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Awptick's EJ9 D14Z2 Turbo Build Up

Discussion in 'Auto Multi-Media' started by awptickes, Jun 23, 2008.

  1. awptickes

    awptickes unimpressed by you VIP

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    Here's my car. I'm going to turbo and build it up.
    [​IMG]



    Let me start this off with some technical data on the engine in my car:
    [​IMG]
    Note that this engine is the un-restricted version, I had the restricted version, which had a restrictor plate in-between the throttle body and intake manifold


    Your mild-mannered honda EJ9 (pretty much the same as the EK9 or EK4). I've finally decided to put a turbo on it, and throw about 5 pounds of boost on it. Should be alright, without any engine work. I may put a block-guard, or post it, but I don't know yet. I'm still early in the build. So far, I've done nothing to the internals, only external things, I/H/E, and a tune. I'm not removing the AC, PS, or anything else. I get migraines and I need the AC, and removing or disabling power steering is extremely stupid for the autobahns and illegal here.

    The whole reason that prompted me to do this, is that I drive 180km or more a day, just getting to and from work, and I'd like a little more power, but also the low pressure turbo make the engine more efficient, thus using less fuel. Less fuel used by the car, means I can afford more fuel for the bike. :D

    http://q0s.org/d14z2turbo/20080623-DSC_0005.jpg

    So far:
    Honda d16y8 intake manifold and throttle body
    Honda 185cc injectors (stock for my engine)
    S40 transmission (more on this later)
    Hondata Intake Gasket
    Walboro 255 Fuel Pump
    Megan Racing N1 replica muffler (With some pot-scrubbers stuffed in it to cut down on some of the noise)
    Megan Racing Exhaust
    Megan Racing Headers
    OBX catalytic converter (to be kind to the trees and animals, and to pass inspection)
    AEM d16y7 CAI bottom-half
    eBay no-name d16y7 CAI top-half hacksaw'd to work with the y8 manifold
    Hondata s300
    And finally:
    Uniroyal Summer Rain tires on some Aluminum rims


    [​IMG]
    [​IMG]


    Ok, so now that you have met, let me get into some specifics. This car was bought from someone who babied it. So although it's got rust on the exposed parts in the engine bay, it's still a baby. I don't drive it hard, but I drive it long.

    The EJ9 had two choices of engine:
    1.4l 75HP
    1.4l 90HP

    The only difference between them is the restrictor-plate in-between the throttle body and the intake manifold. Both of these engines are extremely similar to the d16y7, they have the downward facing throttle body, and the same general anatomy. This engine has a higher compression than most, due to the use of a two-layer head gasket. Everything in this engine-bay is the same as the US counterpart, with the exception of: the engine internals, the displacement of the block, and the headlights. This makes it easy to buy parts. The cam is extremely similar to the y7 cam from what I've read, although I don't have one to compare with.

    My transmission is also kinda funny, it's got wierd ratios, and final drive:
    Code:
    1st 3.250
    2nd 1.782
    3rd 1.172
    4th 0.909
    5th 0.702
    Final 4.220
    ^^ To the best of my knowledge this is correct, which isn't to say it's not correct.


    [​IMG]
    [​IMG]


    [​IMG]
    [​IMG]


    I'm going to turbo it with a T25, probably 3-5 pounds of boost. I'm thinking about a block-guard, but I'd like to stay away from them because of the hot-spot issues associated with them, so I might post the block.

    So far, here's my shopping list/ideas:

    T25 - bought, going to modify the wastegate to 5psi
    T25 manifold (maybe an HF with an adapter plate, or a cast, or even an e-bay ssautochrome)
    Downpipe, probably something from eBay, as I can always inspect and repair welds.
    3.8 PSI blow off valve, modified to recirculate
    boost solenoid, Don't know what brand yet, need suggestions, hooked into my s300
    SS oil and water lines to the turbo, water from the TB barbs, and oil from the pressure sender hole with a T
    Black aluminum charge piping
    eBay Intercooler, I'm going to paint it black, and mount it in the traditional intercooler position, right under the license-plate bracket, going for the stealth look.
    310cc injectors ?, need help with this, I don't know if I really need to go aftermarket on this one, or even this big. I've got 185cc now, and I think 240cc honda injectors might do it with the low-power goal I'm looking for.


    I figure that since my ebay headers have lasted so long, I'll take the chance with an eBay manifold; I can always inspect and fix an eBay intercooler, and an eBay downpipe if needed. The few things I will buy new and name-brand are the blow off valve, and the injectors.




    Questions, comments, flames, reading material? Give it to me.

    (Yes, I know it's filthy. And I'm planning on cleaning up the VC sometime soon.)
     
    Last edited: Jun 23, 2008
  2. nootrac22

    nootrac22 Well-Known Member VIP

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    RC Fuel Injection

    link to rc engineerings web site. that's the tech page with a bunch of mathmatical equations to figure out what size injectors you need. If you can figure it out maybe you could throw some tips my way.
     
  3. Briansol

    Briansol Admins Admin VIP

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    don't bother with the post or guard. you're better off without either for such a small power gain.
     
  4. awptickes

    awptickes unimpressed by you VIP

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    Thanks bro.


    It says for my target hp of 150, I need 295cc/min injectors. I think I'll go with 310's to get some breathing room.

    EDIT: Hrm. maybe I'll go with some 410's. I re-ded the calculations and got 330cc/min.
     
    Last edited: Jun 24, 2008
  5. awptickes

    awptickes unimpressed by you VIP

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    Looks like I'm getting a HF manifold and adapter flange. And I'll be using/modifying the internal wastegate.
     
  6. efhondakid

    efhondakid My name is Byron. VIP

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    Do you have any of the needed parts yet, or are you still gathering them up?
     
  7. nootrac22

    nootrac22 Well-Known Member VIP

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  8. awptickes

    awptickes unimpressed by you VIP

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    I'm getting a HF manifold from craigslist, so that's in the mail, along with the t25.

    I'm going to do a slow build up, and I'm not planning on spending more than $400 a month.

    I'll probably buy the gauge pod and the boost gauge sometime this week, and I've got the HF manifold coming. I'm not buying anything else until I get the turbo and the manifold in my hands, and see how it's going to mount up.

    I've decided that I'm getting either 370 or 440cc/min injectors. Just don't know which, or which brand yet.

    This build is going to be long, hard, but well thought out. I'd like to have everything laid out, so the assembly goes as easily as possible.
     
    Last edited: Jun 24, 2008
  9. 97hatch

    97hatch ?

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    1.4l ek i bet that is a turd and a half i would boost it to good luck and have fun
     
  10. BrutalB83

    BrutalB83 Brutal Moderator Moderator VIP

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    Nice little project! I'm subscribing! :thumbsup:
     
  11. awptickes

    awptickes unimpressed by you VIP

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    Right now it's got more power than a d16y8. That's NA.
     
  12. awptickes

    awptickes unimpressed by you VIP

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    Ok, so I've been reading, and I found these things that I need to move after I get the turbo on:

    Move the head's breather vent to the low-pressure side of the turbo
    Move the PCV to the low-pressure side of the turbo

    Do I have to change anything about the FPR, or the brake booster?
     
  13. philyphreak2127

    philyphreak2127 Back in the Game

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    doesn't the t25 only boost around 7 psi normally? or am I thinking about the te04h?
     
  14. awptickes

    awptickes unimpressed by you VIP

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    TBH, I don't want any more than 7psi maximum. I really don't want a huge power increase, I'm just looking to round out the numbers a little bit more. ;)
     
  15. philyphreak2127

    philyphreak2127 Back in the Game

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    got ya. I was just wondering. but either way the t25 turbo isn't got add much top end power. I think it hits peak boost around 5800 rpms...
     
  16. Matts96HB

    Matts96HB . Moderator VIP

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    PSI doesn't designate any sort of a power. He may have a pretty stoutly built d14, and it may make more power than you might expect.

    It won't max as fast on this small of an engine. It is right for what he's trying to do.
     
  17. philyphreak2127

    philyphreak2127 Back in the Game

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    well most people told me that about a t25 on my d16y8...that is only 1.6 so why would it be so drastically different? As for the t25 I personally like the low end torque so whether it hits peak boost low or not that doesn't bug me I don't know about the op though.
     
  18. Matts96HB

    Matts96HB . Moderator VIP

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    It will be somewhat different. Riding in my friends 1.5 liter mirage compared to a 1.8 liter mirage, HUGE difference. Both are single cams, both essentially stock.

    These are small engines, any sort of displacement change will make a noticeable difference. Larger engine produces more load on the turbo, more load = faster spool
     
  19. philyphreak2127

    philyphreak2127 Back in the Game

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    yeah I guess we will see I don't really see it being that big of a difference between my 1.6 and his 1.4 but then again I am no expert.
     
  20. Luis998

    Luis998 Honda Enthusiast

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    I'm in this one for the long haul. Best of luck to you my friend. :thumbsup:
     
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