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Can anyone know of a good v6 preformance guide?

Discussion in 'V6 Development And Modification' started by RCAddict84, Apr 12, 2015.

  1. RCAddict84

    RCAddict84 Member

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    He guys.
    I'm slowly fixing up my old commodore and I'm on a quest for knowledge.

    So far I've done the usual, holden CAI, pacemaker extractors, and I've got a corvette servo on order. And I've allso been fixing a few things. Speedo ODO gear, dash lights, coolant, brake fluid, CAS, crank seal, rocker cover gaskets, boot shocks, thermostat gasket and p/s low pressure hose.

    Basically I've done most of what I know, I worked for 5 years as a mechanic at various ford dealerships, so I have experiance in servicing and fitting Acessories, but as far as the technical side of preformance my knowledge is lacking.... I've been reading a few book over the years "how to build a ford v8 on a budget" Holley carby tuning and modifying" and "nitrous systems" but I'm trying to find something more specific to the Buick 3800.

    I was lucky enough to pick up a Vortech v1 supercharger but I'm trying to work out if it's worth fitting it or selling it and my car to get a better car
     
  2. MattK

    MattK New Member

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    Hmmm

    Buy a Supercharged V6 : Youl save money ...
    Just like any other engine .. CAM - Pistons - Head Porting - Valves - + A Dyno Tune ....
    If you can do it yourself , you will save money .

    Budget power = Supercharged V6 stocky ... After that it gets $$
     
  3. RCAddict84

    RCAddict84 Member

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    Cheerz for the reply,

    But I'm trying to seak more detailed information.

    Here is my findings so far, please don't quote me, these are rough guides based on posts I've been reading on various forums, but please feel free to correct anything

    Sure I could go nuts like u were saying with cam, pistons, head porting, valves and a tune but that's like over $10k worth of work... And I don't feel I'm into my car that much.

    I've been reading into porting the heads and have found there are very little gains to be made and I'm looking at over $3k for some race heads that would do bugger all with out supporting mods. I've got a bit of experiance with porting and reshaping transfer ports on 2 stroke engines so I'm confident I could do some minor work around the valve seats but I'm trying to work out is it worth the cost of buying all the bits to do the job... Ie. Cylinder heads, carbide bit, valve remover tool, and a head gasket set.... And then no doubt I'd want brass valve guides, re cut the seats and re grind the valves

    And by the sounds a cam is in the same boat, some people say I'm better off looking at highratio rockers first and a double row timing chain?? But even then it's a good $800 or so

    Pistons.... I can say I would even know where to start, but I dare say by the time the bottom end is rebuild it would be someware around the $4k mark.


    And my next delema, say I was to fit a l67 in there no doubt that would cost a good 3k supplied and fitted even if I did the work my self....

    So it's close.... I'm looking at about another $2k for all the bits to mount my vortech supercharger... And from what I can see it's going to be my cheapest option to get some decent power.

    Please correct me if I'm wrong, I'm just under the impression the Buick 3800 is an expensive engine to get power from??
     
  4. VR38

    VR38 Well-Known Member

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    Why bother doing anything at all then?

    $3000 worth of raced heads?
    Is it a street car or a race car?
    You mean bronze valve guides?
    All alloy heads should have them fitted standard, maybe go later model if being able to say "yeah it's got bronze valve guides" really does it for you.
    IMO cast iron is the better material anyway.

    Any engine is the same and responds the same to any mod wether it be fraud, holden or Ferrari.



    And so on and so on.
    Set yourself a budget.
    There are some great threads on bolt on performance Memcal, CIA extractors hi ratio rockers but if you want more power to get to 60km/hr then you will need a supercharger, a stroker or a bigger motor and a bigger wallet.
     
  5. IBLOWN

    IBLOWN Well-Known Member

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    Its easy: Build the motor and turbo it. Its the only mod worth doing.
     
  6. RCAddict84

    RCAddict84 Member

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    Cheers guys, as u can see I really have no clue to these engines.... Sure I can fix them but modifying is a whole new story.

    so far, short from talking to an engine builder, I have no idea what to expect from what with the Buick.

    It's difficult, say if I was building a Cleveland, Windsor or a Chevy v8. there is a crazy amount of information and step by step guides to build 400, 500 and 600hp pluss engines.
    U can literally workout how much money it's going to cost to hit "x" amount of HP and how durable it will be.

    Does anyone have an idea of the power figures these 3800 engines are getting? N/a, forced induction
    I can't Seem to find much at all, Most of the build threads I'm finding are big buck cars with what seems endless budgets.

    Ideally I have tight budget of around 4k, but the lower the better. I think anymore than that and I would prefer A newer car over modifying the VR. But the catch is... Out of that 4k I need to use $1700 in parts just to mount the Vortech V1 supercharger I allready have....and the only things it has fitted is, pacemaker extractors, CIA, and trans cooler...its not very exciting lol

    I did have a thought of mounting the blower and keeping everything stock, then that way I've got enough coin for a few hidden expenses, tune and a spare engine?
     
  7. RCAddict84

    RCAddict84 Member

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    Just curious too... What does it take to get a v6 VR to pull a 14 sec pass?
     
  8. VR38

    VR38 Well-Known Member

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    I don't see the V6 any different from any other motor, they all respond to the same kit, head work, cam, stroker etc etc etc, think of it as a chev V8 minus two cylinders.

    As for books, what to do, parts etc etc this engine has been done to death in the USA.
     
  9. VR38

    VR38 Well-Known Member

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    I got My unopened (bolt ons and a tune) VR V6 down to 15.7 with the standard diff ratio.
    I'm sure with a cam or hi ratio rockers, diff ratio and a few other mods would see it into the sub 15 times no problem, all day every day.
     
  10. RCAddict84

    RCAddict84 Member

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    Cheerz,
    That is, I'm trying to get an idea of what's possible on what budget....ive got a fair idea of what preformance modifications are possible but I don't have much of an idea on what to expect from them and what type of aftermaresupport is there for this engine?


    But yeah, if anyone knows of any preformance guides specify it for these engine please share...I just want to learn more..

    And what does it take to get a VR to hit a 14sec flat quarter mile?
    From my research the only way it can be done it with forced induction?
     
  11. VR38

    VR38 Well-Known Member

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    Cam and stroker would see it 14 flat with the right gear box mods, correct diff ratio, the right suspension and tyres and a good driver me thinks.

    There are a few write ups in the stickies.
     
  12. RCAddict84

    RCAddict84 Member

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    Sounds expensive... Hummm. I think I might sell the supercharger and the VR, that would make a nice deposit on a xr6 turbo... There is one around the corner for $8,500 thants spitting out 330kw at the wheels....

    IMO I think that's the way to go, it's a whole lot more car, and should be considerably safer and more durable.... Just a pity it's not a Holden.
     
  13. Jas.G

    Jas.G Member

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    i ran a 13.7et in my 3.8l v6 with all topend work+exhaust an tune with some drivetrain stuff(3.45 diff an 2800stall)... i know of 2x 3.8l's also that have run low 13with (no boost, no nitrous)but was a full built motors with std cranks, one was a VR an the other a VS bodied commodore
     
  14. vr304

    vr304 Well-Known Member

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    U probably r betting selling ur vr and getting a better car, what about a vx or vy ss commy 6 speed manual? The ls1 is a great performance engine easy horsepower from them too
     
    Last edited: Apr 24, 2015
  15. MattK

    MattK New Member

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    There is that $$ again ...

    2002 Holden Calais Sedan SUPERCHARGED | Cars, Vans & Utes | Gumtree Australia Gold Coast City - Ashmore | 1077452686

    You can put on "mikey mouse" bolt on's .
    Or you can build a real engine ,
    Or you can just buy a supercharged V6 or a latter model commodore ( 170kw to 190kw )

    Sit down in front of your computer , start pricing your options . ( Like your power goals and what it will cost ($) to archive )

    Price of headers / exhaust system , price of heads ( new or Ported ) , DIF mods , Pistons , Cams .. ( Cost of Work )

    And then see what it will cost to just buy a car thats already there .
     
  16. Bowen

    Bowen New Member

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    You have a buick just turbo it? Step 1 turbo
    Step 2 win.

    The buicks love boost delcowizard runs 21 pound daily has cooked it numerous times, boost spikes over 30psi and only recently had to replace a 300,000 ok old head gasket ....

    If u can fab you can do it for under $1500, blow the engine big deal $400 sees a new one! Can't do that with an xr6
     
  17. MattK

    MattK New Member

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    Hmmmm ,

    Interesting !
    If you had your own shop , you could maybe do it for $1500 in parts .. And the Skill to go with that ..
    If you lack the workshop and the skill ..

    The FIT Workshop - Forced Induction Technologies, Australia

    Ecotec V6 Commodore turbo kit - HOLDEN COMMODORE - VT-VZ COMMODORE - ECOTEC V6 SINGLE TURBO KIT T-600 STEALTH - ASETurbo Kit price - NOT installed ..

    There are very few free lunches these days
     
  18. jesterhead

    jesterhead New Member

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    Hi RCAdict.
    I own a VX with the supercharged V6. She goes pretty well as a daily family driver. From memory I think from factory they put out about 240 - 250 hp and around 390 - 400 Nm. The charger runs at 6 psi.
    They're good enough figures I reckon, but I think that we all can agree that more power is never a bad thing. The 3.8 will be able to run 10 psi safely without pulling the pants off the engine.
    As Bowen said, these engines love boost. The first design of the engine was used in 1987 in the Buick GNX, only the engine was (I think) 4.1 - 4.2 litres and ran a single turbo. I'd imagine your six will respond pretty well to that meaty Vortec coffee grinder you have in your lucky hands lol.
    So yeah, boost is always a good option. If I were you, I'd save the V1 for a V8 project, since you're not sure you're really into your car, and go for a turbo or swap a factory supercharged engine. Either way it'll be very good practice.
     
  19. mtmoss

    mtmoss New Member

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    If you want power for cheap $, Just give the thing a tune. Take it down to your nearest car tuner and tell him you want more power.

    I know that with some of the v8's from chevy you can make 360+ hp with a exhaust and a tune, so you should be able to get good results with that combo, plus you have extractors.

    Personaly i would just buy another car with a ls1 or some v8 in it.
     
  20. Bowen

    Bowen New Member

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    Op has a buick v6, running on the delco, any old tuner can't tune it let alone make power, even a good delco tuner would struggle to make 15kw on the stocker,

    Bolt ons aren't real great bang for buck in my opinion.....

    I still say boost haha
     

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