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  1. #1
    Junior Member
    Generation
    4th Gen
    Model
    Si 4ws
    Join Date
    May 2011
    Location
    Victoria
    Posts
    37

    4th gen NA build, needing direction!

    So I've had my lude for a year now (4th gen h23a) and am slowly working it up from stock.. So far I have extractors, cold air intake in custom box, 2.5 inch exhaust and high flow resonators and mufflers.. Also a set of nice rims.. But ive come to a bit of a stand still as to what I should do for some extra horses? Suggestions?
    What do you guys think of the APEXI Vafc ? Best things to do for more power? Take note I am still on my P's so no turbo's for me.. input would be awesome!

  2. #2
    Regular Member
    Generation
    4th Gen
    Model
    S
    Join Date
    Oct 2010
    Location
    New South Wales
    Posts
    179
    switch the head for an h22.
    I think its a G23 frankenstein? Beast of a thing and a pretty easy conversion as far as frankensteins go
    GOD DAMMIT WHY MUST SHORT SHIFTERS BE SO HARD TO FIND!

  3. #3
    Junior Member
    Generation
    3rd Gen
    Join Date
    Mar 2012
    Location
    Other
    Posts
    17
    I agree with you!

  4. #4
    Administrator
    Generation
    4th Gen
    Model
    VTEC
    Join Date
    Dec 2008
    Location
    --Australia--
    Posts
    333
    all depends on the monies you have to spend. you could have a look into ECU's for your beast. would probably be a good step next. especially if you start doing more extensive mods. also could have the head ported and polished to let it breath a little. cams are also a nice step then after that you could look into the fuel system (pump, fuel rail, fuel pressure reg). do keep in mind that the more you mod the car the more likely you will need an ECU.
    The mods i had done to mine were:
    intake
    cat back exhaust
    stage 2 clutch
    lightened flywheel
    blaster coil
    bigger leads
    new dizzy cap and rotor
    I have a VAFC but never had it tuned
    Last edited by 5h4d0w; 14th March 2012 at 08:47 PM. Reason: spelling

  5. #5
    Gold Member SnowWhiteLude's Avatar
    Generation
    3rd Gen
    Model
    JDM Si 4WS
    Join Date
    Oct 2006
    Location
    Victoria
    Posts
    2,450
    Tuneable ECU, or even an AFC Neo if cash is tight.


  6. #6
    Regular Member Raysian's Avatar
    Generation
    5th Gen
    Model
    Vtir
    Join Date
    Mar 2009
    Location
    Queensland
    Posts
    443
    If you are looking at an na setup your power will be compression and a good flowing engine.
    so the bettet gains mean you are gonna have to invest in pistons conrods (crank?). i was looking to go down this path a while back and my plan was lighten internals more compression and port and polish head cams....
    lol look up jun super lemon for inspiration ..drools

  7. #7
    Senior Member Son of Eevil's Avatar
    Generation
    5th Gen
    Join Date
    Sep 2010
    Location
    New South Wales
    Posts
    976
    ^ Forget all of ths ^

    Sell it, buy a 4th/5th gen VTiR, until you have Vtec (or unless your planning to go FI) your wasting your money. For a grand you can literally get an extra 45 (kw), name me one mod that will yield better results for less money.

    Even with all your current mods, a VTiR is going to be loads faster, you can also take some of them with you, not the extractors but the rest of the exhaust can come over as well.

    There's also little purpose to going to bigger leads or coils, there's about as much purpose in that as going to "iridium" or "Platinum" spark plugs or putting a red button on your dash that says "turbo".
    Last edited by Son of Eevil; 14th March 2012 at 10:41 PM.

  8. #8
    Regular Member Raysian's Avatar
    Generation
    5th Gen
    Model
    Vtir
    Join Date
    Mar 2009
    Location
    Queensland
    Posts
    443
    this is true i forgot, h23a wasnt a vtec motor.
    though i was going on about a full out na build.

  9. #9
    PA Janitor Bob's Avatar
    Generation
    3rd Gen
    Model
    Si 4WS - B Spec
    Join Date
    Jan 2006
    Location
    Western Australia
    Posts
    11,094
    What are you hoping to achieve? If you had more power, what could you do that you can't do now?
    IMO sell and buy something quicker when circumstances suit.

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