My new build 350hp is the goal


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  1. #1
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    My new build 350hp is the goal

    hey whats up i just bought a 2014 brz brand new a few months ago and i need this thing to grow a set of nuts! listed below is my build im going for but im having trouble deciding on cretin parts so ***any input on the build would be amazing***

    in order of purchase, these are the mods i want

    exhaust: $980 perrin catback exhaust (not sure if i want 2.5 or 3 inch piping)
    OR
    $1225 HKS Hi-Power Spec L Ti Tip exhaust


    intake: $300 perrin cold air


    wideband A/F gauge: no clue what gauge i want to get yet id like some opinions


    programmer: ecutek + racerom + licence $750



    fuel pump: $160 Full Blown FB340 Fuel Pump


    fuel regulator: $110 Tomei- Adjustable Fuel Pressure Regulator Type S


    injectors: $400 Injector Dynamics 725cc


    filter: 140$ In-Line Full Blown Fuel Filter


    fuel rail: $400 Full Blown FA20 FRS/BRZ High Flow Fuel Rail



    forced induction: $5000 GReddy T620Z tuner turbo kit



    before turbo: $3300 after turbo: $8300



    thats my build before i start to go internal with cams, built head, new crank n pistons. im expecting 320-350hp on a 10 psi map. any feedback would be awesome and if im missing something just let me know your thoughts.

    Thanks!!

  2. #2
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    Stick a turbo on first, then think about the rest. A turbo should be good for about 1/3 more hp and about 2/3 more torque. There's a law of diminishing returns as you add more stuff. A turbo is the absolutely cheapest way to blow past any breathing issues. These modern engines breathe really well already. (100 bhp per litre and 75 lb ft of torque per litre is more efficient than say a C7 Corvette, do the math). You'll get very little from exhaust or intake changes. Check out Cosworth's stage 1 kit to see how little you can get without fitting a turbo or supercharger. You'll not get much trying to fit a cam, assuming anyone even grinds one.

    I assume you're content to blow off your factory powertrain warranty?

    If acceleration on the road is your primary objective rather than great paper numbers consider a positive displacement supercharger instead. These flatten the torque curve nicely, filling in the cam change dip and giving you real world performance you can use in every corner. Turbos deliver big numbers but on curvy roads they can be a real handful. Remember these cars are not about straight line speed but handling. Note that Cosworth is so far only building a supercharger kit, no turbo.

    A supercharged car is easier to drift also.
    Last edited by Subieman; 05-03-2015 at 02:44 PM.
    2013 BRZ Sport-Tech Satin White Pearl manual transmission

  3. #3
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    May 2015
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    im not concerned about the warranty im a technician so ill be doing my own work. you make a good point with supercharger over turbocharger but with a turbo theres more options with tuning. with a super charger all you can do is change a pully. i can have an economy tune when im not racing and a fully tuned map for when i decide to be an asshole lol.

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  5. #4
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    I'm pointing out you should start with the forced induction and then add anything else you would like. For natural aspiration the stock engine is very close to optimized. Lots of people claim otherwise but to get more power from stock engine without supercharging is not economically sensible.

    When you choose your forced induction make plans for extension of your mods.

    Bear in mind that positive displacement supercharging takes you closer to the torque limits of the stock engine at lower rpm than any turbo or centrifugal supercharger. If you are intent on extracting more power you'll need to open the engine and reduce compression ratio.
    2013 BRZ Sport-Tech Satin White Pearl manual transmission

  6. #5
    Junior Member
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    Aug 2016
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    exhaust: $980 perrin catback exhaust (not sure if i want 2.5 or 3 inch piping)
    OR
    $1225 HKS Hi-Power Spec L Ti Tip exhaust.

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