2015+ GT350 Mustang official power specs: 526 HP / 429 LB-FT!

[krt22]

Agreed still a true flat plane, it's not a debate. Size of the counterweights could be the firing order, could be the voodoo is a much larger v8 than any f-car mill. Regardless of the size the voodoo crankshaft looks extremely symmetrical which is great for NVH and smooth rev characteristics

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[thePill]

It's a flat plane crank V8... I'm not sure why there's a misunderstanding.

 

[10splaya22]

It's a flat plane crank V8... I'm not sure why there's a misunderstanding.

He was talking about the layout of the crank compared to other FPC designs. The graphic below shows the UDUD configuration needing small counterweights like on the GT350. The Ferrari uses an UDDU configuration and doesn't need the counterweights.

Even the crankshaft is different. Yes, it's flat, but did you know there are three different flat-plane crank designs? Looking at the crank lying on a table with the front on the left, the connecting-rod throws can be up-down-down-up (like Ferrari's, and like most four-cylinder engine cranks), up-up-down-down, or up-down-up-down. Ford modeled all three designs extensively in the computer and prototyped at least two of them before determining that the UDUD concept was the one that breathed the best with its layout. Maximizing airflow through the engine is a primary driver of the flat-plane crank design, which inherently delivers improved exhaust airflow, because you never have two cylinders on the same bank firing within 90 degrees of crank rotation. That causes a traffic jam in the exhaust header unless you connect the header pipes a long way away from the engine, which makes it impossible to light off a catalyst. (Tell your friends: The flat-plane crank is a green development!) Anyway, Ferrari treats each bank like a separate I-4 engine with its own intake plenum, so UDDU works better; Ford has one big intake plenum for the whole engine, which the UDUD crank serves better in terms of airflow.

Read more: http://wot.motortrend.com/1506_flat...helby_gt350_mustang_engine.html#ixzz3dVXjLcSH

 

[thePill]

He was talking about the layout of the crank compared to other FPC designs. The graphic below shows the UDUD configuration needing small counterweights like on the GT350. The Ferrari uses an UDDU configuration and doesn't need the counterweights.

In terms of being a V8, Ford's Voodoo has more in common with a V8 than the other two options.

The 4 cylinder firing order (or Inline) is primarily done on I4's and I6's. So it's not typically considered a V8 design.

The Ferrarri FPC is compared to having two 4 cylinder engines running together. Each side is fed fuel seperately.

Ford's FPC does create more vibration but I think it would exhaust better. It also uses a more traditional V8 intake.

If anything, Ford's Voodoo is more in line with V8 than the other two options.

 

[D K]

What other 2 options???

 

[arsenalrocks]

this is a ferrari fpc v8 crankshaft

first thing you see are the counterweights which are almost the same size as the voodoo

google s2000 crankshaft, same thing as the 458.

they ALL have counter weights, just how big or how small

It is actually....

It still has massive counterweights where a true FPC does not.


But Im not complaining. Im stoked to see Ford take a step in the right direction.

 

[krt22]

Here is the voodoo crank. "massive" is a bit subjective I guess.

http://i0.wp.com/www.svtperformance .com/wp-content/uploads/2015/06/10-Shelby-GT350-5.jpg?resize=1280%2C751?w=434

Take out the space between the E and .com, stupid filters

 

[grayforge]

Oh, that makes it a lot more obvious that the Voodoo doesn't have a real Flat Plane Crank. :-)

Ferrari:

GT350:

 

[krt22]

Yeah still looks pretty flat to me...still revs higher than any production motor of this size...still has equal exhaust pules between the banks...

 

[Pablo GT350]

It's real. And it's spectacular!

 

[D K]

I guess the proper way to describe it would be the Ferrari has a traditional fpc where the Ford has "hybrid(?)" fpc...

This was never meant to be an argument

 

[krt22]

I guess the proper way to describe it would be the Ferrari has a traditional fpc where the Ford has "hybrid(?)" fpc...

This was never meant to be an argument

You are right, because there isn't any real debate. It is not a "hybrid" by any means, or any less of a FPC, it is just not a ferarri-like FPC

The main 2 components/traits

1) All pistons attach on the same plane (aka a flat plane), instead of the traditional cross plane crank found in most every other V8, hence the name, flat plane crank.

2) This arrangement allows for the the cylinder banks to fire in alternating order. Left, Right, Left, Right, so there are no unequal exhaust pulses between the two, like you get with a cross plane crank when two cylinders on the same bank fire in order. Left..Right Right..Left. The sequence within the individual banks doesnt change the alternating order between the two.

The voodoo meets both requirements.

 

[nametoshowothers]

I guess the proper way to describe it would be the Ferrari has a traditional fpc where the Ford has "hybrid(?)" fpc...



This was never meant to be an argument

Wrong it is just a different design a different iteration but is very simply a fpc


Sent from my iPhone using Tapatalk

 

[grayforge]

Like saying a German Shepard is a dog and a Doberman is a Hybrid. No, they're both dogs, just different types.

 

[D K]

:headbonk:e

Like saying a German Shepard is a dog and a Doberman is a Hybrid. No, they're both dogs, just different types.

Not at all correct!


Ford engineers themselves are calling the Ferrari style fpc a traditional one.
If ai find the interview, Ill post it.

Quite simple: up untill now, all modern fpc have been uddu.
That maks them traditional.

Ford fpc is a NEW architecture. It is still a fpc but not traditional.

Why are we splitting hairs here?

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