So basically BMW is doing kinda what they did going from the 330i to the 335i, except now they're doing it with their non-M series V8s. Power is quoted to be 'at least 400' and 450+ tq from 1800 RPM on up 4800.

Fuel economy with the DI and low boost turbos is expected to be, if anything, improved over the current 5.0L V8s that it's replacing in the 750i, 650i, probably the 550i, and it will also be implemented in the new X6 SUV/wagon.

 

Wow, that is impressive!

I like the switching of the intake and exhaust and the turbos in the valley. very smart. the air to water intercoolers are nice. wonder if it'll be underrated like the 3.0L tt?

It also makes you wonder why these aren't the engines used in the M series cars? I would take the 3.0L twin turbo over their old 333 hp I6 and I'd take this 4.4L V8 over their 420 hp torqueless M5 V8.

it does, however, look to be rather hard to upgrade to different turbos. they look pretty tiny too.

 

Number 5 is alive!

 

I also think what is kinda neat is the exhaust manifolds are in the center of the V and there are individual intake manifolds on the outside. I wonder what the external dimensions are.

 

FWIW, GM's new light-duty Diesel V8 does the same thing.

 

this should give us a better idea of how that engine works

none of these reverse-head turbo engines should have ANY lag issues!

 

Why didn't they cross the exhaust manifolds to the opposing turbine?

 

I wonder if heat dissipation is improved with the engine's heat having nowhere to go but up (and out through the hood?) instead of circulating around the engine bay?

I think BMW are beginning to realize you can only go so far with normally aspirated street engines having to rev to the stratosphere to achieve power while meeting packaging requirements. Power adders then become necessary.

The engine looks compact and very impressive. Great photos, too.

 

Naw you can get a pretty compact V8 to produce some serious power. The Hartley H1 400hp 75 deg 2.8 V8. Pretty neat little engine, its essentially 2 hayabusa motors sharring a common crank. Crazy expensive at 30k and would need a equally crazy (I'd say 6 gears minimum) gearbox to make it work on the street, but neat none the less. IMO would make a neat project car using a Solstice wihout the major work nessecary needed to graft a larger V8 in there.



By comparison this pic shows Ford's Zetec I4 on the left and the H1 V8 on the right

 

 

 

That's what I was thinking but couldn't remember for sure.

 

Nice catch!

LMAO, now I want to watch Short Circuit.

 

"Why didn't they cross the exhaust manifolds to the opposing turbine?"

That's what I would've done but not for something like a v8, a 4 cyl.

 

i wonder about the heat to. how does in get out