Assuming they can squeeze 30mpg out of the turbo 4, which may be easier said than done. Or Ford may claim 30mpg, but real world figures may not be so rosey.

I think that's the first time I've see a suggestion the 5.8 will stay around for the next-gen Stang. Having read the Mustang 5.0 magazine article, I'd like to think all that effort wasn't done for just 2 model years

 

I'd like to say that too about the 5.8. But it's happened before... Terminator supercharged 4.6 4v

 

Well if you get down to it, the current 5.4 has been steadily improved about every two years. The 2013 5.8 is just another evolution along that line and its still a MOD motor and it still has roots in the 4.6 4v that powered the Terminator.

Ford has managed to keep it relavent despite being what is essentially a decade+ old engine family.

 

Right. The engine is old and extremely up to date at the same time. It amazes me what they are doing with that engine despite it being old hat given the advancement in the Coyote/Roadrunner. But it's just like the LSx engine, relevant and archaic at the same time. Hey, doesn't the Mustang have a truck axle?

Anyway, I have had such a hard time with how much I am intrigued by the 2013 5.8L. So much so I'm abandoning the thought of the Boss just so I can taste that sweet engine. I know the Coyote/Roadrunner is the way of the future but there is just something about the new mod engine that gets me going!

Not to get off topic. I am interested to see where this small 4 goes with the talk of it being in the Mustang. I've always associated them with cars like the 240sx and the likes. But I have faith.

 

I love the 5.8. I see it as a swift kick in the nuts to government motors. Like oh cute camaro ZL1... Check out my biceps lol. If I could afford the 2013 GT500 I'd get it. Trust me. I don't know where to go next after my 2004 GT. I was thinking '04 cobra, 2012 or 13 boss, 2015 something. If they hit this 2015 on the head I maybe all for it. But a 2013 boss would be soooooo sweet. I don't know. I'm torn.

But again back to the 4banger. I think for the SVO to succeed I think they'll have to produce at least 350hp, have special interior and exterior upgrades, performance close if not better then the GT, and 30mpg. If ford can pull that off I think we have a winner. I don't know what market they are trying to fill. Are they going for a below or above the v6? Anyone know?

 

Just hoping I guess...its a big change for 2 years, but you never can tell what Ford will do.

 

Would be neat if they updated the heads on the 5.8 next go around. These are essentially the same heads that have been around since the Ford GT. I'm honestly surprised they haven't gone under the 8-axis cutter for a little improvement in airflow.


Well Ford is messing around with a 177hp 1 liter 3 cylinder engine, I'm sure something will come from that. Maybe even a cool 300+hp 2.3 I4

 

Not sure what Ford is doing on that front but according to the article in Muscle Mustangs the heads weren't in need of much better flow characteristics or they weren't necessary to open up to achieve the performance they wanted. Seems like they were exploring all avenues on the 5.8. I'm guessing the only way to go further or make things more efficient is to start with a new design.

 

Well with a supercharger that is certainly true

Or the budget wasn't there? The GT500 castings are by all accounts pretty heavy for a 4v setup so a change in architecture to something akin to the coyote head could shed a few pounds and since those heads flow a bit more than the GT500 castings it would be nice to see a similar improvement in a new head if for nothing other than a reduction in airflow resistance which would heat the air less and the inclusion of TiVCT would be nice as well. Not so much for an increase in peak power but more power under the curve and maybe even a boost in economy(???? - TiVCT like the variable cam phasing on the 3v can reduce pumping losses while the engine is just cruising) since its always good when you can duck the GG tax with just a little more margin.

 

I am thinking of the 5.8 as a package for this blown application only. But i agree with you about new head design. I think it's totally possible. I think in my mind I was assuming within the constraints of the given design. At this point I have a great deal of faith in the design of the Coyote heads and their further improvements. I am impressed by the improvements made on a bread and butter engine like the 5.8 though as it isn't overly complex and has humble roots. I wasn't arguing against, just a point-counterpoint.