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Thread: vb-vk any reason most convert to v6 instead of rb30

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    Default vb-vk any reason most convert to v6 instead of rb30

    ive been wondering why most seem to go for a v6 conversion into early commodore instead of an rb30 conversion which seems easier to me to do whats the pros and cons of both as ive been thinking of getting a donor car to convert my vk and im unsure which way to go for it vl or vn?

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    If it was me wouldnt use a vl rb30,i dont see why u would bother.They dont have that much more power than a standard 202.Stick with the 202 or get the newest v6 or v8 you can afford.

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    Quote Originally Posted by Guzzoline addict View Post
    If it was me wouldnt use a vl rb30,i dont see why u would bother.They dont have that much more power than a standard 202.Stick with the 202 or get the newest v6 or v8 you can afford.
    Thats funny the most holden got out of a stock 202 was the EFI VK 202 which put out 109kw@226Nm of torque the RB30 had 114kw@247Nm thats a bit of a jump.

    Personally I wouldnt go for an RB30 unless I was going to play with turbos then by all means you have a great platform to make good power even standard at 150kw@296Nm,

    The VN engines started at 125kw@192Nm more power than the RB but far less Torque, on paper I would pick an RB30 but why both why not just buy a VL


    Quote Originally Posted by Guzzoline addict View Post
    Stick with the 202 or get the newest v6 or v8 you can afford..
    He is so right here, look at what you want long term, it wont cost that much more to put in an EFI5L and be bloody awesome but also the supercharged V6 goes quite well at 172kw@375Nm compared to the EFI5L between 165-195kw@385-430Nm the supercharged V6 is a viable option.

    Scott


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    Quote Originally Posted by vkcommodore6 View Post
    ive been wondering why most seem to go for a v6 conversion into
    because there is a deluded misconception that you can get power out of a V6.

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    i know theres fark all chance of getting much power out of a v6 i had 10k wrth of reciepts with my old vr v6 and it only dynoed at 185 kw at the fly (previous owner wasted alot of money) im leaning towards the rb because 1 easier to make bucketloads of power and 2 the v6s always seem to sound like shit

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    RazzaCaine is offline Long Gone Now
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    go the rb, any particularly reason for keeping the vk and not getting a vl though? if youve already spent a fair bit of money on the vk then id say keep it and do the conversion, if not then itd be easier to just buy a vl

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    Quote Originally Posted by ari666 View Post
    because there is a deluded misconception that you can get power out of a V6.
    Tell that to this guy: YouTube - 1987 Buick Regal T-Type (Eights)
    Wonderful things happen when you boost a buick v6.
    Four commodores and counting.

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    I'm considering doing the same swap myself mainly that i have a Vl wagon (big defect) and a couple of Vk's sitting around. i also have the carby manifold from a RB30 Nissan GQ patrol that i might use for something simple and diferent

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    yeah dont want a vl because my vk has been fully bare shell restored 8 years ago it has no rust at all never has had any! custom paint custom interior and alot of safety work underneath eg nolathane bushes, brakes etc atm its got a worked 202 but in looking for a little more power and a more refined drive than a rough as guts cammed 202.and i do like the rbs over v6s

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    Quote Originally Posted by vkcommodore6 View Post
    yeah dont want a vl because my vk has been fully bare shell restored 8 years ago it has no rust at all never has had any! custom paint custom interior and alot of safety work underneath eg nolathane bushes, brakes etc atm its got a worked 202 but in looking for a little more power and a more refined drive than a rough as guts cammed 202.and i do like the rbs over v6s
    Please don't put an RB30 in your vk. A little bit of me dies inside every time I see an rb30 in a vb - vk commodore. Its just so wrong. At least a v6 comes from the general. Go an ecotec - nearly 150kw out of the box, you can get them for peanuts.
    Four commodores and counting.

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    what about an rb20det a mate will sell me a low k one for next to nothing he was going to use but never did but its just a motor and accessorys does vl stuff eg mounts ,gearbox etc bolt up as im loooking for a conversion that wont do my head in but dont want to pay through the nose for all skyline parts.

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    be a very sweet transplant for your car go for it


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    [QUOTE=vkberlina;1703085]Thats funny the most holden got out of a stock 202 was the EFI VK 202 which put out 109kw@226Nm of torque the RB30 had 114kw@247Nm thats a bit of a jump.

    The figures i got for a stardard efi 202 was 106kw and 266nm@3600 ,less power than the rb30 but more torque.

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    Mate

    I have done a RB30+manual into a VH and a V6+T5 into a VB. It is the same amount of work. With the V6 if you go ecotec you have to get the VATS removed from the ECU and modify the tailshaft and has to be engineered.
    We have since dropped a RB30 turbo into the VH and and a super six into the VB.
    It really depends what you trying to achive. If you are after an economical daily driver the RB30 would be a good choice.

    Pete

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    Quote Originally Posted by vkcommodore6 View Post
    what about an rb20det a mate will sell me a low k one for next to nothing he was going to use but never did but its just a motor and accessorys does vl stuff eg mounts ,gearbox etc bolt up as im loooking for a conversion that wont do my head in but dont want to pay through the nose for all skyline parts.
    engine mounts are the same for all rb engines so you would be able to use the vl mounts. not 100% sure with the gearbox but i would imagine you can use the vl gearbox (perhaps with a bellhousing adaptor). if you really keen for a rb motor, go the rb30, its bigger capacity than the rb20 so youve got more room for potential

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    yeah the rb20 worries me a little with regards to things fitting thats why i havent bought it off my mate but i think the rb30 is the go its got to be better then a dinosour of a 202 "not injected" thats as lumpy and noisy as and still got fark all power.

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    Quote Originally Posted by jakbob View Post
    Wonderful things happen when you boost a buick v6.
    ok, so do that to a V8 or an RB and see what kind of power figures you get.

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    I think most people go for the V6 over the RB30 because there are still so many parts available for the V6 and as correctly pointed out, it makes considerably more power than the RB30 in stock form. Plus the V6 has the Delco engine management system which means tunes are as simple as a memcal swap.

    The RB30 is definitely a more refined/superior engine to the old rattly, raspy V6, but the RB is a fair whack down on power in comparison (stock). If you were going down the RB30 path, then you would have to go with the turbo. Stock turbo RB30 is going to be quicker than a stock V6, and then it doesn't take a lot of effort or money to boost the power to take on the LS engines.

    So I guess it just depends what you plan on doing to the engine. If you plan on keeping either engine fairly stock, then the V6 is going to be the best option. But if you plan on getting some good numbers out of the engine, then go with the RB30ET

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    Quote Originally Posted by ari666 View Post
    ok, so do that to a V8 or an RB and see what kind of power figures you get.
    Who cares? The point is you can make power with a v6, I'm not saying any more or less so than any other motor.
    Four commodores and counting.

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    Unless you are on your P's, I can never understand why anyone would go to the trouble of swapping an engine and use a 6, be it V6 or straight. The cost would be similar for 6 or 8, right? And if power / torque is the main objective, surely a V8 would be the best option? Resale value would also be better.

    Just my opinion - to each their own I suppose.

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    nope not on my p plates im over 40 and dont want an eight im still a car enthuiast but im over worked engines and eights just want a very clean old commodore that is a pleasure to drive atm my vk handles brakes and steers like a new car (alot of work gone into underneath) is clean and comfortable but i want to loose the worked 202 and put a more refined modern but most of all "quiet" driveline in it and the rb engine although only being 1 year newer than my 202 is worlds ahead of it, mine gives me a headache.and resale dosent even factor into it as im not selling it will never part with it i do nothing but constantly improve it , besides resale on a vk is not real good even with an 8 in it.and yeah i could pick up an injected 5.0 for $600 anytime off a mate constantly wrecks vn/s v8s but dont want to convert to an 8 or i could pick up a complete vl with a shit body/interior but a good driveline loom and dash and have everything ready just to swap over for the same price of just a 5.0 engine.

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    Quote Originally Posted by vkcommodore6 View Post
    and the rb engine although only being 1 year newer than my 202 is designed by the japanese so obviously is a much better engine than anything australians could ever build
    lol, fixed.

    so while we are on the topic of RB, why not waste a tonne of cash and get yourself a 26dett?

    i know its not a helpful post, but i just have difficulty comprihending why people would spend so much time, money and effort on something which is not going to yield any real results. by the time you have spent all your money on your conversion and an engineer, you may as well have just bought a car with a "more refined, modern but most of all quiet driveline"

    there will never be anyhing refined, modern or quiet from a VK driveline, engine swap or no, because sadly they are roughly built, old and noisy.

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    I agree with Ari, don't spend a fortune on something marginally better then the 202.

    Frankly if you've got money to burn and you don't want a V8, 2JZGTE. End of argument.

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    Quote Originally Posted by vkcommodore6 View Post
    nope not on my p plates im over 40 and dont want an eight im still a car enthuiast but im over worked engines and eights just want a very clean old commodore that is a pleasure to drive atm my vk handles brakes and steers like a new car (alot of work gone into underneath) is clean and comfortable but i want to loose the worked 202 and put a more refined modern but most of all "quiet" driveline in it and the rb engine although only being 1 year newer than my 202 is worlds ahead of it, mine gives me a headache.and resale dosent even factor into it as im not selling it will never part with it i do nothing but constantly improve it , besides resale on a vk is not real good even with an 8 in it.and yeah i could pick up an injected 5.0 for $600 anytime off a mate constantly wrecks vn/s v8s but dont want to convert to an 8 or i could pick up a complete vl with a shit body/interior but a good driveline loom and dash and have everything ready just to swap over for the same price of just a 5.0 engine.
    if you want a more refined motor, but not necessarily chasing heaps of power, then yeah the RB30 is a lot more refined, smooth engine compared to the V6.
    It might be the better choice for you. The RB engines are an excellent engine, just a shame about the unreliable engine electrics & engine management system.
    The VL's were actually a very smooth engine/driveline combo. I remember driving a VN V6 when they were first released, and after driving many VL's prior to it (as a Holden mechanic) whilst the V6 was noticeably quicker, it was rough as guts and a rattly old thing. A very crude engine in comparison. You could virtually balance a coin on a RB30 at idle, silky smooth engine

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    Quote Originally Posted by ari666 View Post
    because there is a deluded misconception that you can get power out of a V6.
    LOL, says he with 147rwkw out of a worked 308... Stock L67 would suck the doors off your car.

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