Who will swap for the new 7.3 V8!

Discussion in 'Mustang S550 General Forums' started by Fatguy, Mar 9, 2019.

  1. TexasRebel

    TexasRebel Gearshifter

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    You know what helps performance and efficiency?

    Variable Valve Timing.

    You know what isn't on a single-cam engine?

    Variable Valve Timing.
     
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  2. BlackandBlue

    BlackandBlue Well-Known Member

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    I ordered a preproduction model from Ford awhile back and it just arrived. Already have it installed in the engine bay. Should have it running in a few days.

    #coyoteugly #roadkill #fullofshit
     
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  3. Bikeman315

    Bikeman315 Well-Known Member

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    Bless you :like:
     
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  4. Bikeman315

    Bikeman315 Well-Known Member

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    #3034 Bikeman315, Aug 1, 2019
    Last edited: Aug 1, 2019
    How many posts before someone asks what you paid for it. :headbang:
     
  5. Shadow17

    Shadow17 Active Member

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    The 7.3 will make a great swap... in a fox body.
    The coyote will definitely be gone... when Mustangs are turbo or electric only.
     
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  6. nastang87xx

    nastang87xx Well-Known Member

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    Which can be substituted with variable cam timing, something that has been used for a while now. But bare in mind, this is not me defending the 7.3 for a Mustang. I'm pointing out there are solutions. Big engines don't mean low efficiency either. The 4.0L S65 BMW engine gets absolutely ABYSMAL fuel economy. Worse than a Coyote in comparable trims of cars.
     
  7. tokuzumi

    tokuzumi Well-Known Member

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    A V8 that makes max HP at 8300 RPM. Shocking it would have poor fuel economy. Probably turning between 3000 RPM on the highway in top gear.
     
  8. nastang87xx

    nastang87xx Well-Known Member

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    Exactly the point.
     
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  9. TexasRebel

    TexasRebel Gearshifter

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    If you're referring to the profile of the cam, it's still fixed. You can adjust the cam phase angle with respect to the crankshaft on the fly, but the intake to exhaust phasing is set. The beauty of separate cams for intake and exhaust is the ability to modify things like valve overlap while the engine is operating.

    It also makes one wonder why we're still messing with cams anyway when a solenoid can act directly on the valve.
     
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  10. nastang87xx

    nastang87xx Well-Known Member

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    I'm aware of all of this. Which I'm also going to well assume then you're in the know that Koeniggseg has been trying to master exactly that, a cam-less valvetrain which would of course DRASTICALLY revolutionize the ICE.
     
  11. Condor1970

    Condor1970 Well-Known Member

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    A rotary valve system would be just about ideal. Not quite perfected yet, but it could also be retarded with phasors like current Ford engines. The idea being it would be one solid rotary valve system, and extremely reliable. Thermal expansion issues are still a problem though. It's extremely hard to seal it properly.
     
  12. Norm Peterson

    Norm Peterson corner barstool sitter

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    Actually, it is possible to incorporate VVT into a "single-cam" OHV engine. But you have to think a bit outside the usual camshaft design box. Think "cam in cam".

    https://chryslercorporationllc.blogspot.com/2007/08/viper-v10-introduces-cam-in-cam.html


    Norm
     
  13. BlackandBlue

    BlackandBlue Well-Known Member

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    The new 7.3 is a VVT engine. I may have missed where that was already said in this discussion.

    I am going to guess ford is using this mostly for intake valve control. Hence the diesel like torque numbers at low rpm.
     
  14. DekiDoo

    DekiDoo Well-Known Member

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    You never had a coyote. You have no first hand experience with the car or the engine. You're not buying this engine, you're not doing a swap, and it will be cheaper to put an s550 into the 9s, and more fun, than to stick this truck engine into anything after a Fox body.
     
  15. DarkHor$e

    DarkHor$e Well-Known Member

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    This thing is a big giant low revving HD truck motor. Cheaper to throw a blower on your Coyote and alot more fun. The day you get done, you'll be looking for a way out / back.
     
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