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  1. #1
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    Default How to get 180-200kw from blue 308?

    Guys. I have I think stock blue wb 308 from statesman. Comparing cost vs power of getting close to 200kw from rebuild or converting to efi and rebuilding to stage 1 specs. Trouble is efi convert costs money to get running without actually getting any power for your money. How can I get good power and still be smooth to drive and not spend silly money. I'm not wanting turbo or blower or bits hanging out of the bonnet. Cost estimates please? I can pull down and reassemble. Why does wb 308 have so little power stock?

  2. #2
    Do you ever leave? Mickss355's Avatar
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    The reason why the blue 308's actually i think there 304's have so little power is they are very low compression motor, the cam is crap and just to rub salt into the wound, Holden retard the cam timing to around 8 degree's !
    The result was a very smooth, very quiet, very inefficient, very guttless pile of crap !

    So if you want a decent power plant without an engineers cert then i suggest you get your short motor recoed with flat top pistons and stick an efi top end on it - heads, manifold, exhaust and a mild hydraulic cam, your engine builder will set the cam timing according to the cam card and then use the stock AC Delco computer and wiring loom and then have it tuned - what youll end up with is a nice 5 litre engine with plenty of go and will use half the amount of fuel the blue engine did so it will be affordable to run as a daily driver.
    If you really want to wake it up then stroke it to 355 ci - best bang for buck upgrade you can do on a Holden 5 litre V8
    Just my opinion !
    Last edited by Mickss355; 23-07-2012 at 01:22 AM.
    He who dies with the most toys wins !

  3. #3
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    Cost of stroking mick?

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    G'day Mick,

    I have a similar situation as Poyda. You advice sounds good to me as my blue 5.0litre is still solid but exactly as you describe it. When I go looking for someone to do as you suggest, what sort of cost would you estimate as being reasonable? Thanks

  5. #5
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    cost is like asking how long is a piece of string

    it all depends on what needs to be done how good are all your parts to begin with how good is your block is it all flogged out has it been
    machined before are there any unseen cracks same goes for your heads etc
    so its hard for anyone to say untill it's cracked open an cleaned up to see what has/needs to be done

    then there is you! what you at first want done then what "ideas" you come up with half way through

    cost is to hard to predict

  6. #6
    Do you ever leave? Soop's Avatar
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    $10,000+?

    Have no time for penis enthusiasts who are full of opinions and no real clue.

  7. #7
    Do you ever leave? Mickss355's Avatar
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    Cost is completely relevant to how much you can do yourself - so here is my recipe for building an engine on a budget that has served me well over the years !

    1) - do your own homework and ask people that are in the know for advise (not the guy on the other side of the Autobarn counter)
    2) - decide on a combo and stick to the plan
    3) - Find a reputable engine builder for all your machining including head reco, balancing and so on
    4) - dummy up your own engine, and do your own assembly work
    5) - shop around for your parts but don't buy crap - you will be surprised how much you can save on quality parts if you shop around

    Long and the short of it all is - you do as much as you can and the more you can do the less it will cost you !
    Ive built a 420 hp 7500 rpm 308 for a bro inlaw that held together for years for $4000 but other than boring, honing, balancing and head reco, i did everything including head porting, chamber re-shaping, port matching, manifold mods, dialing in the carbi and graphing the dizzy - bloody family, i dunno how i got roped into that one hahahaha !
    Last edited by Mickss355; 25-10-2012 at 06:58 PM.
    He who dies with the most toys wins !

  8. #8
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    Speak to TK . Have you seen his blue heads

  9. #9
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    WB Blue motor is still a 308 it wasnt till 85 VK, Black motors that they went 304 with the Group A
    Speaking of which they made 196kw with stock B cast heads 8.8 comp and a mild Crane cam (similar spec to a 276) a very mild engine by our standards .
    you could easily make more power with a little port work more comp and a basic freshen up really 200kw isnt big power by 308 standards

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    Well power ? how about we start with the old HQ 308 with the factory twin exhaust, now back in there day they went well. the 350 HQ was flat out keeping with the 308 as the 350 was a bit of a joke in them and the GT XB 351 were flat just keeping up to a HQ 308.
    Then came the HJ 308 and it went a bit better as it had a bit bigger cam and comp but the HX on they were gutless rubbish !
    What i think you are looking for is a good stock motor that just performs well in your WB statesman well i would start at the diff ratio as std 2.60 is to high and go to a 3.08 and maybe a 3.36 if you only drive city mainly.
    As far as the motor goes if you can getaway from having ADR27A you can run a small cam, a bit bigger than std ( best talk to a cam doctor ) and a bit of head work done to suite with the cam. then exhaust is critical on them to flow well then it's the carby tune, when you have it jetted the right way, it will perform well and make sure the dizzy is done to suite and there ya go she will perform so much better, you will not believe it.
    Big cams etc is bull shit ! and only for rat bags on the street.

  11. #11
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    If you have the turbo auto, they are the biggest piece of shit, a power robing, useless moronic and hopeless box in std form.
    You need to modify this to make it perform or it will be a just a poor joke.

  12. #12
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    well said indeed.

  13. #13
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    Quote Originally Posted by ROSENBERGER View Post
    Well power ? how about we start with the old HQ 308 with the factory twin exhaust, now back in there day they went well. the 350 HQ was flat out keeping with the 308 as the 350 was a bit of a joke in them and the GT XB 351 were flat just keeping up to a HQ 308.
    Then came the HJ 308 and it went a bit better as it had a bit bigger cam and comp but the HX on they were gutless rubbish !
    What i think you are looking for is a good stock motor that just performs well in your WB statesman well i would start at the diff ratio as std 2.60 is to high and go to a 3.08 and maybe a 3.36 if you only drive city mainly.
    As far as the motor goes if you can getaway from having ADR27A you can run a small cam, a bit bigger than std ( best talk to a cam doctor ) and a bit of head work done to suite with the cam. then exhaust is critical on them to flow well then it's the carby tune, when you have it jetted the right way, it will perform well and make sure the dizzy is done to suite and there ya go she will perform so much better, you will not believe it.
    Big cams etc is bull shit ! and only for rat bags on the street.

    Ratbags you say ?
    My good man, I'm not sure I like the tone if your voice hahaha !
    He who dies with the most toys wins !

  14. #14
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    The later model 308s just before they died and the VN revision was coming along were the biggest pieces of shit known to man, and yes I have driven one ...

    f-ck all compression, a ridiculous cam just nudging .400 lift 190/200 at 50thou 112 LSA running retarded, 8.5:1 compression .... If you are talking 200kw flywheel thats around 270HP ho easy is that to do ... f-ck me...

    Around $4000 I could put you into around 340-350HP flywheel .... and thats a full reco ...

  15. #15
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    just thinking of the HDT magnum
    I'd agree 3.08 or 3.36 gears perhaps a 2500 or 300 stall
    and a group3 spec (or better ) motor certainly would look at 355ci cranks also

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