HiPo Mustang (S550) Prototype Spied -With Different Exhaust Setup and Sound

JoeDogInKC said:

Stupid thought, but what if this was the return of an inline 6?

Click to expand...

Be realistic. They already testing 3.5 EcoBoost in trucks and suvs for few years.

M.Senger said:

Be realistic. They already testing 3.5 EcoBoost in trucks and suvs for few years.

Click to expand...

I pay attention to Mustang stuff, not trucks and SUV's, so I didn't know that. But notice I preferenced my comment with "Stupid thought".

johnnyblack said:

The heck is going on with the (missing) rocker panel in this prototype

So many questions.....:tsk:

Click to expand...

What's the concern with a missing minor exterior piece on a test vehicle? This is fairly typical.

Tony Alonso said:

What's the concern with a missing minor exterior piece on a test vehicle? This is fairly typical.

Click to expand...

Not concerned.... more like curious and wish we had more answers than questions. ;)

JoeDogInKC said:

I pay attention to Mustang stuff, not trucks and SUV's, so I didn't know that. But notice I preferenced my comment with "Stupid thought".

Click to expand...

He did...QFT

johnnyblack said:

Not concerned.... more like curious and wish we had more answers than questions. ;)

Click to expand...

If you viewed some of the other prototype photos, I think you've see missing exterior trim pieces, yes?

And yes, there is much to be curious about regarding this car's sound and what's in the engine bay!

GTsquid said:

Not if it were to be a special edition, as Mitchell is suggesting in this thread. A hipo Mustang SE can step on the GT's shoes all it wants.

Plus, a 3.5L would help with the whole problem of "it costs too much to produce another one-off engine for the Mustang" since its development for the most part has been funded by the F150. I'm sure modifications would have to be made (of which I'm not sure how much) but I would think a lot of the R&D would be paid for already.

Click to expand...

Yes it has and there is this:

DMV said:

Hmm some corrections,

S550 program was not always 2.3 and 5.0 and nothing else.

You are correct it started with 2 engines and no V6. Many displacements were explored. It was for some time 2.7 but that changed a few years ago and settled on 2.3 for fuel economy and performance reasons. After 3 engines was decided, 3.7 was added, then replaced with 3.5.

S550 had the 3.5 until mid 2012 when finally determined the 3.7 was the best way due to cost and other factors. I'll just say, 3.5 is still being explored.

Click to expand...

Even with better audio quality we would not know for sure but I have a feeling these are related. Time will time.

JoeDogInKC said:

Stupid thought, but what if this was the return of an inline 6?

Click to expand...

The only way this would even be remotely possible would be if Ford wanted to salvage a few jobs in OZ and keep the Barra engine plant functional. The 4.0 was cranking out 416/417. But that's output in direct competition with the current Coyote, though maybe not the next version. Anyway, not going to happen:



- Unnecessary cost of maintaining another plant, shipping costs and associated logistics, the I6's output is redundant with what is already available in the Ford engine stable.

- Ford Aus has already confirmed that the Barra 4.0 will die with the Falcon.

Cool, thanks for the information! The unusual sound coupled with Mustang heritage and Pericak's mention of having some surprises in store kind of made me think of that.

Focustang said:

Sounds normally aspirated. FPCs fire like a staggered doubled inline four cylinder, so the comparison to fours that some are making is valid. I don't hear V6 lumpiness in it, and from the revs versus launch acceleration, it would seem to imply a peaky motor. Most of what I observe points to a FPC V8. The exhaust tune is fair, so I'm guessing that the production tune will approach a Ferrari bark when it's complete.

Click to expand...

I'm with you--after watching the video and before reading and of the comments, these were my thoughts exactly.

Being the absolute novice I am, not sure of the effect the different types of mufflers on a car would have? That is to say how much it could change the note of a V8 for instance.

With that said the car in question obviously does NOT sound anything like that shelby. Which in turn would mean it would have to be a different motor in there?

Another Joe (can't think of his forum username at the moment) did mention that he'd heard that there would be TWO SVT model's coming. Both the GT350 and GT500. I'm not sure how accurate that is, and it could be completely different names for one or both, but interesting nonetheless.

johnnyblack said:

The heck is going on with the (missing) rocker panel in this prototype

So many questions.....:tsk:

Click to expand...

If you look closely, you can see there is a sensor mounted where the rocker panel normally is.

JoeDogInKC said:

Cool, thanks for the information! The unusual sound coupled with Mustang heritage and Pericak's mention of having some surprises in store kind of made me think of that.

Click to expand...

Kudos for the unique thought. A straight six would be fun to have in a Mustang.

The tire sizes look almost like a drag set up...huge wide tires in the rear and skinny up front. Maybe it's just the angle of the photo, but that rear tire is almost flush with the quarter panel.