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New to 5.7 L I want a min 260kw but would like 300kw ?

Discussion in 'General Discussion' started by Detroit, Apr 14, 2013.

  1. Detroit

    Detroit New Member

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    Hi all, I'm old school V8 talking 253/308/307/327/350/302/351 carby jobs. I'm looking at buying a wagon with a gen3 5.7 engine, can I get 300kw at the engine with simple mods like exhaust/air intake/chip/tune?

    Thanks in advance
     
  2. someguy360

    someguy360 Well-Known Member

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    I would say no with just simple mods like that.....you would be struggling to get 260RWKW with those mods. (I would estimate around 240 at the wheels depending on the exhaust)

    Exhaust, Cam & Tune is the best for easy power with the LS1's
     
  3. Bomber R8

    Bomber R8 New Member

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    Firstly do not bother with any "chips". Custom dyno tune is what you want. You can get MAF (mass air flow sensor) or MAFless (almost always better power/torque) tunes done from all the big workshops. At least 1.75" primary headers, hi flow cats and a twin 2.5" or 3" exhaust combined with an OTR (over the radiator) cold air intake will open it right up. My manual VXII R8 Clubsport made 337rwhp (252rwkw) with MAFless, OTR, Pacemaker 1.75" 4-1 headers and full Manta 2.5" exhaust so add 20% for drivetrain losses and there's 300kw at the engine. Cost all up under $4000.

    Add a cam to the above combo and anywherw from 280rwkw is achievable. Add another $3000 plus a clutch upgrade if manual.
     
  4. _senator_

    _senator_ Member

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    you will easy get 300kw at engine with those mods
     
  5. Detroit

    Detroit New Member

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    Thanks guys I really appreciate the help, can any of you recommend a good shop in Brisbane, to do the exhaust and tune., I'm pretty handy I've rebuilt engines and done clutches, wheel bearings, bla bla but I'm to old and lazy to build my own exhaust these days. Or am I wise ??? Lol Nup just lazy. Oh also what year model with a 5.7 litre would you guys suggest. Under $15K
     
  6. Munz

    Munz Right Foot Action

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    I have had my car tuned at Powertorque (at brendale/Ormeau) and highly rate them. Also Western Mechanical are good - Although having your exhaust put on at one of these shops would blow out the final price so I would suggest do it first at a Exhaust shop in your area.

    As senator said 300+ KW at the engine will be easily achievable with a tune, dual exhaust system minimum of 2.5in (Manta, Difilippo, Hurricane), Hi flow cat convertors, and extractors whether Tri-Y's or 4-1 style (Pacemaker, Difilippo, Hurricane)

    Also an Over the radiator Cold Air Induction (OTR CAI) Duspeed OTR is fibreglass and VCM OTR is alloy

    I would suggest the later VY-VZ style commodore, you may also find a 05/06 6 Litre engine for that price
     
  7. Detroit

    Detroit New Member

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    Thanks Munz, I would actually like to find something for under $10K and then spend around 5K on engine performance/mags/lowering suspension. So I gotta get prices & if I have to fabricate the exhaust and lower suspension myself to stay within budget then I will do that.

    Can anyone suggest costs for full exhaust including headers, cats, mufflers and install?
    And lower springs & shocks?
    And OTR CAI ?
    And tune at power torque ?
     
  8. Cava454

    Cava454 Member

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    5k won't get you the mods you want.
     
  9. Detroit

    Detroit New Member

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    I found a VX for 5k with a 5.7 in it, might check it out for potential project car.
     
  10. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    Since you are handy with spanners, fit the exhaust yourself. I can do 1 3/4" or 1 7/8" primary 4-1 Hurricane extractors, 200 cell high flow metallic cats and a twin 2 1/2" Manta cat back all for $2150 shipped. All gaskets, clamps and nuts and bolts supplied.
     
  11. Detroit

    Detroit New Member

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    Thanks, not a abba fan, I'm thinking of buying headers and high flow metal cats and fab the rest, thinking I will build like this; 3" inlet & 3" outlet cats installed directly to headers, then 3" cross over pipe, then 2.5" diff bends, then resonator.

    I can get 2 cats shipped from USA for about $400.00, I just have to source a set of headers. And I'll make the rest including 3" cross over section.
     
  12. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    I do metallic high flow cats for $190 each. The extractors I do for $740. $55 shipping to get it all to Brisbane.

    I have done a similar system, and I found the X pipe to restict flow a bit in the upper revs when it is close to the headers. I moved it back where the front mufflers would be and it went a lot better.
     
  13. Detroit

    Detroit New Member

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    Awesome , if they are 3" inlet & outlet 100 cell cats I will PM u when I'm ready to buy, good prices and thanks for info.


    I do metallic high flow cats for $190 each. The extractors I do for $740. $55 shipping to get it all to Brisbane.

    I have done a similar system, and I found the X pipe to restict flow a bit in the upper revs when it is close to the headers. I moved it back where the front mufflers would be and it went a lot better.
     
    Last edited: Apr 21, 2013

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