The V-10 is a 4.6 with 2 extra cylinders tacked on. It maintains the same bore and stroke. As a result, piston accelerations will not change. The BIGGEST contributor to internal engine friction is the rings. After that, the valvetrain. So the V-10 has an extra pair of all that and will have roughly 25% more internal frictional losses. Sounds big until you actually calculate what % of total engine output is wasted in frictional heat. Assume 1%. Off a 400hp thats 4hp. So gross is 404hp. A 404hp V-10 would lose 5hp and net you 399 at the crank. BUT, the SC on the current mod motor has MUCH greater losses than adding 2 cylinders would incur. The V-10 will have much less frictional loss than the SC Mod V-8 and much more fuel efficient.

Does anyone know if this is the '06 Cobra's powerplant? Or will it be a Shelby model? If the Cobra moves up to the low 40s in price, then the V-10 makes it a much better value.

Proudpony, are the heads 2,3, or 4V?

 

C'monnnnn General......We can't let Ford get all the glory

 

Having more cylinders with each one smaller (say a v10 5.8L vs a v8 5.8L) actually will decrease certain emissions. Has something to do with smaller chamber sizes keeping down production of oxides of nitrogen and/or other nasty stuff.

Sounds like there is still a TON of work before a Mustang V10 project would be truly production ready. If its that detuned then expect a full power version to have lots of driveline durability issues. Not to mention a PCM control scheme which employs 2 separate controllers is probably not going to get through EPA's standards for production vis a vis the OBDII regulations on engine management systems.

 

Agreed. I was talking along the lines of a 5.8L V8 and a 5.8L V10 and the differences in piston speed between them.

No clue. Lots and lots and lots of speculation - but no known data that I'm aware of.

Not Proudpony...but it sports 4V heads.

 

You are EXACTLY right.

I think this more directly addresses some of the issues we have all been skirting around when we talk about manufacturers putting out 500+ HP cars... DURability as much as LIability. And in all fairness, this is a problem that ALL the manufacturers will have to face - it's not just making a 600hp engine... it's putting in a tranny, clutch, driveshaft, rearend, axles, and such that will withstand the abuse. I'd venture a guess that AT LEAST as much time/money will go into the rest of the car as in the big powerplant.

A 600hp Vette will have just as much problems as this 500+ hp Mustang has had, if they don't address the rest of the powertrain. Same for the Dodge Viper. And in defense of PacerX's script about "non-shared tooling costs and parts making the limited cars unaffordable and unprofitable", I readily admit that he has a case here. It's like there is a law of diminishing returns on this ultra high end stuff - you can reap rewards of commonality as long as you don't exceed the designed capability of the shared part, but at what point do you redesign the part to withstand more abuse (knowing that more robust design = 1)design time and $, 2)research and testing time and $, 3)added material and processing so more $/part, and all this added cost will be shared on the non-performance models as well)? You play a risky game raising the price on your base units to justify parts for your limited edition beasts.

It will be interesting to see what comes of this!

(PS - did I just compliment PacerX in this rambling above?!?! Someone check my pulse! Quick!
J/K with you dude!)

 

No matter who you are today, YOU'RE ANSWER IS CORRECT!

FWIW, this engine seems to love the revs too - much like the other mod motors. 4V heads should serve it well above the 2500 mark IMO.

 

351 V10?

Could this be the 2006 Cobra John Coletti said would be a big surprise last spring?

 

Are you folks talking about the silver test mule that's in the January '04 issue of HotRod, or is this another car?

 

I believe so since the one in MT and 5.0 mag are both painted silver as well.

The v10 idea seems pretty neat eventhough i have doubt on whether ford will ever go through with it or not. I think this engine is capable of 500hp with a good tune seeing as how its said to put down 426rwhp in its detuned state. Can't wait till every little speculation is put to rest.

It is 60lbs lighter than the N/A 5.4 in the 2000 Cobra R, not the blown 5.4. So it really isn't that heavy.

 

Oh, well if you were referring to the 5.4 in the R, then that is indeed a good thing. Cool.

 

Where's all that economy of scale when you need it?

 

It's coming. Oh it's coming.

 

i don't mean to knock on this car, well actually i do but a 351 v10 that makes its power at 6500. it doesn't say how high it revs, but i would think that they would take advantage of such a small stroke, and harmonics. i know i don't know what i'm talking about, but those darned mustangs need 2 more cylinders to complete . but its always nice to rag on a pony.

 

What's that saying... the more things change, the more they remain the same.

In 2003 it took a pack-animal load of massive heads, compressor, liquid-cooled intercooler and other doodads for the Mustang to compete with a simple pushrod V8 Camaro. Looks like Ford is assuming now, they will need an extra 2 cylinders to keep up... brace yourselves for the fiscal impact

 

At the risk of sounding overly obvious.....keep up with what?