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Road & Track: Flat Crank 600hp 5.4 NA GT350

Discussion in '2015+ S550 Mustang Talk' started by mustangc, Aug 3, 2013.

  1. mustangc

    mustangc Debt Free but the House!! Established Member

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    I just read a new article tonight about the 2015 Mustang. In addition to the base 305 hp V6, optional 350 hp 2.3L Ecoboost I4 and 450 hp 5.0 V8, they claimed information about the GT350: a flat crank V8 revving over 7000 rpm, likely displacing 5.4L, and generating nearly 600 hp. My guess is it would be an enlarged Coyote (maybe a slightly taller deck?).

    Flat crank means that there are 180 degrees between crank throws instead of 90, similar to a 4-cylinder crank. One of the benefits if this design is that no two cylinders on either bank will fire back-to-back. This produces a much different sound, less American thump-thump and more race car like screamer (think Ferrari V8).

    If this is true, I think the Z-28 will soon be meeting its daddy...
     
  2. paynecasey

    paynecasey New Member Established Member

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    Link?
     
  3. ponyboyisaac

    ponyboyisaac Now Kaioken...times 10!! Established Member

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    If this is true, I called it a couple months back in another thread lol. I remember saying ford could build a n/a screamer with a high rpm and get 550hp for its next special mustang. Where's my cookie haha.
     
  4. f ê r

    f ê r Tro.Pi.Cal Established Member

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    [​IMG]
     
  5. NametoShowOther

    NametoShowOther New Member Established Member

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    Lighter weight, plus hi-powered N.A. Engine, better weight, IRS, high revving, better interior,.....

    = what he doctor ordered
     
  6. NametoShowOther

    NametoShowOther New Member Established Member

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    What the doctor ordered
     
  7. 662HP631TQ

    662HP631TQ New Member Established Member

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    Inside sources huh? I hope it's true, but nothing really is until we see it. Speculation is just that.
     
  8. badblackhemi

    badblackhemi New Member Established Member

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    I'm just wondering what trans will be in the car... If they stay with the mt-82 I won't be trading my '11 in on one...
     
  9. Too40gawlf

    Too40gawlf Banned

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    Good point. Hopefully the headaches of the last 3 years have persuaded the S550 team to go a different route (T56?) than the MT-82.
     
  10. 9secondko

    9secondko 9secondko Established Member

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    I wonder if they will stick with "just" 6 gears...
     
  11. drewzx3

    drewzx3 New Member Established Member

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    give me one with a 6r80
     
  12. swoosh_stang

    swoosh_stang I'm not evil, Trust Me Established Member

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    I would expect a DI 5.4, coyote/roadrunner to be around 530 or so.

    Start with the 444 hp boss engine
    35 hp increase for displacement
    38 hp for the compression increase that direct inject can gain (13:1 or so)
    12 to 15 hp for the added rpm and tuning that direct injection can gain you.


    I think 600 hp N/A out of 5.4 liters is a bit of a stretch.
     
    Last edited: Aug 5, 2013
  13. Fenixfire

    Fenixfire Slower than ever Established Member

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    With todays tech? I dont think so....... JPC made 507 to the wheels with a coyote with just boltons, a boss intake, mildly ported heads and slightly reground stock cams........
     
  14. Fast69Mach

    Fast69Mach Member Established Member

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    As cool as it would be, I'll believe it when I see it.
     
  15. swoosh_stang

    swoosh_stang I'm not evil, Trust Me Established Member

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    I understand that, but this is going to be a factory engine with all of the reliability and NVH requirements that entails, not a custom modified ported tuned to the ragged edge engine.
     
  16. Fenixfire

    Fenixfire Slower than ever Established Member

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    Lol, it was hardly tuned to the ragged edge. However, we really dont know until Ford finally decides to confirm something about it. Definitely possible tho
     
  17. Boss 327

    Boss 327 All Motor Established Member

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    I really hope this is true
     
  18. badblackhemi

    badblackhemi New Member Established Member

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    If they go T56, I'll have one as soon as they come out! I know the auto is faster, there's no doubt about it. If i was buying it just for racing I'd get the auto, but my car see's the street 99.99% of the time, and I want to be able to enjoy driving it and rowing the gears.
     
  19. swoosh_stang

    swoosh_stang I'm not evil, Trust Me Established Member

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    If we're dreaming about transmissions, I would rather have a corvette style, ZF transmission.
     

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