[Jason]

Originally Posted by ilya335

Does anyone know that the engine spec are? Is this the Inline 6 with a tri-turbo?

• Six-cylinder in-line diesel engine with M Performance TwinPower Turbo technology, aluminium crankcase, three turbochargers (high-pressure, with variable turbine geometry), common-rail direct injection with piezo injectors, maximum injection pressure: 2,200 bar.
• Displacement: 2,993 cc,
• output: 280 kW/381 hp at 4,000 – 4,400 rpm,
• max. torque: 740 Nm (546 lb-ft) at 2,000 – 3 000 rpm,
• specific output: 93.6 kW/127.3 hp per litre of displacement.

You can find all info released so far @ http://www.e90post.com/forums/showthread.php?t=640126

[dj john]

Bmw makes the best diesel engien out ther..sh...t that,s a fast car..i want one.

[remmib]

That's diesel power alright. Very quick launch.

[GmoBmw]

I don't Get why this isnt going to be released in the US.... it looks amazing.

[kave]

First I couldn't figure out why it accelerates so slowly at 200km/h and why in the hell it revs so much, but now I see he is shifting manual. Bad driver.

[pow]

Originally Posted by BenTrovato

Looks impressive! What is far from impressive is that we won't see it in North America

Because the Americans dont understand the good technique of diesel.
Nobody wants diesel, sellers wont import them.
Spread the word: "diesel is great for enviroment and cheaper"

[Eichler1]

Oh dear, turbos. I hope BMW has made some progress in banishing turbo lag from the ill fated N54 engine. Yes, I once drove a 335i and yes, it could go really fast, but typical of turbos from as far back as the '80s, there was lag followed by zing. The zing gave the car enough pickup so that the manufacturer could boast impressive 0-60 times, but the lag rendered the car utterly useless in the point-and-squirt city driving that I do. I mean, my '90s-era, 4-cylinder minivan has WAY better throttle response than did the be cursed 335i.

So while this 550d appears to be a power/fuel economy trade-off tour de force with formidable acceleration numbers, will it be any good in the kind of cut and thrust driving that is the bread and butter of car-crazy Southern Cali? I guess time will tell. Meanwhile, it's NA all the way for me

[waho]

Since I'm driving a 3-series diesel (with a lot of kilometers on the dash), I'm looking forward to a new 6-cylinder. But a 5-er is to big for me. Why doesn't BMW put that engine into a 3-series?

[delvek]

Originally Posted by Richbot

0-155mph in ~35 seconds, about on par with a 335i.

Terrible times to be drooling over.

[InTheNightKitchen]

Originally Posted by Thud

Thanks to Active Sound Design. It's electronic. They could make it sound like a V10 if they wanted to (in fact, the ASD in the new M5 does sound like a V10).


For the rest of us without ASD, there are 3rd party solutions available!
Here's an Impreza with a virtual V8 playing through the stereo and driven off the tachometer.

Why the fornication would anyone want that? It seems like the cool factor would wear of quick. I thought the purpose of an exhaust was to let the car breath better, release the true sound of the motor, and make your rear sound good!!!!!!!

[Hunter5179]

very nice! great mpg

[positiveions]

no doubt about it. This is a solid motor, and a keeper!
Too bad BMW won't import this motor

[Remonster]

Originally Posted by Eichler1

Oh dear, turbos. I hope BMW has made some progress in banishing turbo lag from the ill fated N54 engine. Yes, I once drove a 335i and yes, it could go really fast, but typical of turbos from as far back as the '80s, there was lag followed by zing. The zing gave the car enough pickup so that the manufacturer could boast impressive 0-60 times, but the lag rendered the car utterly useless in the point-and-squirt city driving that I do.

Go drive an Evo and STI and try to tell me the 335i has bad turbo lag, you can tell it isn't N/A, sure, but the massive midrange torque (compared to an N/A 3 liter) more than makes up for that.

[AW128i]

Now that we've seen the official specs on this gem of an engine, I think those of us saying the driver should've upshifted sooner may be right. As suspected, power starts to fall off sharply above about 4500 RPM and he ends up spending quite a bit of time accelerating on the downward slope of the horsepower/torque curves.

[YolkyPalky]

Originally Posted by Remonster

Go drive an Evo and STI and try to tell me the 335i has bad turbo lag, you can tell it isn't N/A, sure, but the massive midrange torque (compared to an N/A 3 liter) more than makes up for that.

Over the weekend at a dealer I test drove both a pre-owned '11 X5M and a new '12 X5 35d. Both were amazing, great cars. I was especially impressed with the torque of the X5 35d, and this was after testing the X5M first.

However, both had noticeable degrees of turbo lag. I guess there is just no way of getting around it, if you have turbos you are going to have lag, it's just a question of how much.

[Eichler1]

Originally Posted by Remonster

Go drive an Evo and STI and try to tell me the 335i has bad turbo lag, you can tell it isn't N/A, sure, but the massive midrange torque (compared to an N/A 3 liter) more than makes up for that.

I had a Subie turbo once but, because of the turbo lag, got rid of it in favor of a G35, which was far more satisfying to drive. The midrange torque and high-rpm hp in the 335i are just fine, but it's not there for you if you are lane swapping in fast-moving traffic. To make the N54-equipped 335i fast in traffic you had to drive it like a small 4-cylinder, i.e. stay on the revs, but that kills the fuel economy that is supposed to be the turbo-equipped engine's advantage.

Diesels are torque monsters by design, so perhaps BMW's turbodiesel 6 in the new 5'er has enough torque to begin with to give the car responsiveness before the turbo kicks in. Let's hope so for those Europeans who get to experience that machine.

BTW, a friend of mine had a '86 Mazda 626 turbo 4-cyl back in the day and its turbo was designed to start spinning at 1500 rpm which was effective to overcome turbo lag. The car had great power and got excellent gas mileage on the freeway. I never understood why other automakers didn't copy that design.

[delvek]

Originally Posted by YolkyPalky

Over the weekend at a dealer I test drove both a pre-owned '11 X5M and a new '12 X5 35d. Both were amazing, great cars. I was especially impressed with the torque of the X5 35d, and this was after testing the X5M first.

However, both had noticeable degrees of turbo lag. I guess there is just no way of getting around it, if you have turbos you are going to have lag, it's just a question of how much.

Manufactures just give you the framework, from that, you must tweak via mods. I have modded my current F10 a little to address the areas that I felt the manufacturer missed the mark on.

I believe most of the critiques we notice are fully known to the manufacturers but a conscious decision is made to ignore the critique to satisfy another variable.

Anyway, an effective ECU modification will remove any lag (or doubts).

[DnA Diesel]

Keep in mind that BMW (and other makers as well) include elements of delay into the drive-by-wire accelerator pedal to keep things like emissions low for certification. A tune or signal conditioner using the principles of the BMS Power Box would remove the artificial throttle lag/delay.

From a complete stop, I'm assuming the M550xd would behave similarly to my 335d, that is to say there would be about a 1/4-1/3 sec delay when you stomp the pedal down fully. When driving in DS-manual mode, the throttle response is near instantaneous and there is little turbo lag felt at all.

This engine (and 8AT) in the F30 would be insane...with the lower weight than an F10, I would imagine that an M350xd it would be a low 4-second car, if it were ever to be produced.

Regards
D.

[Mysecondwife]

Don't understand why they don't bring it over to the states....need to get stationed in Germany and buy one!

[DRIVE'R]

this sounds nth like diesel, superb engine!