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  1. #1
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    Talking How do i get good power from a 202 3.3l black motor in a Vk commodore???

    Hi everyone,


    So i've just bought a decent vk commodore for my first car, i am 2 years off even being on my L's so thats 2 years for me to do as many performance upgrades as possible. The car is currently running EFI but i plan on changing that as i have been told by many vk owners that a stock EFI on a vk drinks wayyyy to much fuel for a daily p plate car. I have also read that a ADM34 carbie off an xe falcon is a great carb to put on it? so my question is whats some good things to for a 202 black motor that would make my car not only sound great but perform well mabye into the 14/13 second quater miles??
    Last edited by 1BADVK; 29-01-2019 at 08:32 PM.

  2. #2
    Senior Member TonnerGuy's Avatar
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    Probably better to do some upgrades to the existing EFI system, maybe others gave better ideas.

  3. #3
    Do you ever leave? paulzig's Avatar
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    Mate, honestly you havent even got your L's drive it stock for a while forget performance, an inexperienced driver in something too powerful is an accident waiting to happen, especially the young punks of today...

    Forget about 13-14 seconds for a start ... A set of extractors , with a performance exhaust and muffler for sound and a bit extra... If you were a GC local I'd give you a set of extractors for a VK black for free..

  4. #4
    Sure why not? 76lxhatch's Avatar
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    If its factory EFI it already has extractors, and should go significantly better than most Holden sixes, they are a step up from the average Holden six and a good little engine when running right. Spend your time and money going through it and checking/maintaining items so that its in the best possible shape and it will serve you well.

    Fuel economy won't be as good as a modern vehicle but should be fine, if its not good enough for you then there isn't much you can do to improve it (I suspect these other people are trying to get you into a different car).

    Changing to carb would be a bit of a waste of time and money, you'd have to change both intake and ignition systems (edit: and for no gain).

    You can't tune the EFI controller on these so any significant changes (e.g. big cam) will require changing to a newer PCM (VN Delco is the cheapest option but still a bit of work) otherwise performance and economy is likely to suffer.

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    Do you ever leave? HQ308Ute's Avatar
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  6. #6
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    HI
    commos with efi
    leaking manifold vacuum
    leaking vacuum brake booster
    check compressions
    remove injectors and have cleaned
    Caution air flow box /meter can be destroyed by backfiring
    change plugs and check ignition over

  7. #7
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    Hey paulzig, I see where your coming from with the p platers these days but personally I have been brought up around cars, my dad has an 77 lxss hatch back that we are building a twin turbo drag/street set up for right now. I un like other young drivers have a massive respect for cars and just would like a tough daily that I can take to the track when my dads heading down and still have a good time, unfortunately Iím down in Melbourne so I canít get the extractors but thank you for the advice

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    76lxhatch, Iím just wondering are you sure that changing to carby wonít get better fuel economy at all? because I plan on making the VK my daily until I get off my pís and can make an awesome engine combo for it.

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    Thanks swampy I will hopefully check over those on the weekend

  10. #10
    Not the Kingswood! hq308's Avatar
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    VK EFI isn't very economical by modern standards but were pretty good compared to any other factory Holden 6 and I doubt there would be much if any improvement by fitting a Weber. Just give it a tune up and a sports exhaust (as mentioned above VK EFI already has extractors). If you want a little extra performance you can also put a small cam in them. Almost anything you do to make more power is going to kill the fuel economy anyway so you need to decide what is more important.

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    Thank you hq308 this was really helpful, would it be worth buying pacemaker headders or another performance brands extractors to replace the old factory ones, or are the headders on it now alright for performance??

  12. #12
    Sure why not? 76lxhatch's Avatar
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    I wouldn't put a cam in it, you can't tune the engine to suit. The headers on it are fine.

    The VK EFI engine will perform significantly better than any standard carbied 202 (except XU1). Spend your time and money making sure its in top shape, anything beyond that requires new engine management.

    The Weber would work OK but no better than the EFI and you'd be up for carb, manifold, distributor, fuel system changes and re-wiring.

  13. #13
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    So can a factory 202 EFI engine not be tuned for better fuel economy??

  14. #14
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    Quote Originally Posted by 1BADVK View Post
    So can a factory 202 EFI engine not be tuned for better fuel economy??
    Maybe if you got an aftermarket engine management computer it would be easier, like a cheap microsquirt or something.. But I wouldnt throw any serious coin at a black 202

  15. #15
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    Thanks paulzig Iíll look into it it

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