[lemetier]

Originally Posted by JRobUSC

anyone know how much power it would be making if it wasn't limited by BMW's choice of transmission? ZF makes 8-speed units that can handle more torque, it's a shame BMW didn't choose to use one of those so they could really show off the new engine specs. I assume they had reasons beyond just cutting costs. At least I hope they did.

Which transmission is it mated to?

[kevinlevrone]

To be honest, I don't think that keeping adding turbos is the way to the future.

I think Audi's new engine with turbos and an electrical supercharger is a way better solution, will full torque from 1000 RPM:

http://www.autoblog.com/2016/03/03/a...-tdi-official/

[JRobUSC]

Originally Posted by miamiten

Which transmission is it mated to?

According to other sites, the same ZF 8HP is being used on all 7-series models, including this one, and BMW had to cap the torque output because that was the max it could handle. Other versions of the transmission can handle more (pretty sure the Chrysler Hellcat models and Audi SQ7 use the ZF HP90 8-speed). Not sure if there was a packaging constraint or BMW just felt the costs associated with sourcing a different transmission for a low volume model weren't worth it. Either way I think it's a shame -- without being constrained the engine might have matched or eclipsed the SQ7's diesel V8 with twin turbos and electric supercharger. That would have been an impressive headline, and it's an opportunity lost to one up a big rival who has certainly not shied away from one upping them the last few years.

[8k4]

Nice but good luck getting here. That Audi SQ7 is bad ass

[mkoesel]

True enough. However, for the types of vehicles BMW manufactures, i.e. those meant for personal transportation - passenger cars and light trucks - the claim is correct. Agree though, that this could have been made more clear in the press material, sure.

Originally Posted by poggy

The point sygazelle makes is correct - there are actually plenty more 6 cylinder diesels that are more powerful (e.g. The M43 in the link is available as a 6cyl - http://www.cat.com/en_GB/products/pr...47468&type=new ) it's a silly headline

[M3 Adjuster]

Originally Posted by bradleyland

It'd be easier to swap your Miata in to that engine bro.

[lemetier]

Originally Posted by JRobUSC

According to other sites, the same ZF 8HP is being used on all 7-series models, including this one, and BMW had to cap the torque output because that was the max it could handle. Other versions of the transmission can handle more (pretty sure the Chrysler Hellcat models and Audi SQ7 use the ZF HP90 8-speed). Not sure if there was a packaging constraint or BMW just felt the costs associated with sourcing a different transmission for a low volume model weren't worth it. Either way I think it's a shame -- without being constrained the engine might have matched or eclipsed the SQ7's diesel V8 with twin turbos and electric supercharger. That would have been an impressive headline, and it's an opportunity lost to one up a big rival who has certainly not shied away from one upping them the last few years.

The G11/12 use the 8HP50, 8HP75, and 8HP95 (M760Li). There isn't just a single type.

[JRobUSC]

Originally Posted by miamiten

The G11/12 use the 8HP50, 8HP75, and 8HP95 (M760Li). There isn't just a single type.

I am not an engineer but the HP90 can handle over 700lb-ft, so if BMW is already using it on other 7's then I don't know why they hamstrung the new flagship diesel engine with a lower version that can't. Maybe SCOTT26 knows the real story.

[SCOTT26]

Originally Posted by JRobUSC

I am not an engineer but the HP90 can handle over 700lb-ft, so if BMW is already using it on other 7's then I don't know why they hamstrung the new flagship diesel engine with a lower version that can't. Maybe SCOTT26 knows the real story.

What if it is not the Flagship Diesel?
Although it is for now.
They have developed a Power eDrive Diesel which would arrive for implementation in vehicles like the X7 and 9er. And more likely in the mid-life cycle of the 7er and the all new X5.

[lemetier]

Originally Posted by JRobUSC

I am not an engineer but the HP90 can handle over 700lb-ft, so if BMW is already using it on other 7's then I don't know why they hamstrung the new flagship diesel engine with a lower version that can't. Maybe SCOTT26 knows the real story.

The 8HP90 isn't available in AWD nor does it support ConnectedShift, Sailing, or "Launch Control". The Hellcat 8HP90 is built "in-house".

The SQ7 uses the 8HP95X and there is no mention of which specific transmission is fitted to the 750d/Ld.

As Scott said, this won't be the top of the range diesel.

[WreckerX5d]

Stick this engine into a 3 series, with M suspension and make it also have FWD electric motors for assistance. That would be an awesome car. Nothing like great handling and 40MPG combined, with 450+ HP and AWD.

I'd also straight pipe it, none of this DPF/SCR BS America requires on diesels.

[MParallel]

Impressive. Now waiting for first engine with more turbo's than cylinders.

[lemetier]

Originally Posted by MParallel

Impressive. Now waiting for first engine with more turbo's than cylinders.

LOL...there are a few in development actually, one of which is the most insane internal combustion engine I've ever seen. Hopefully proof of concept works and it winds up in production.

[realtrevor]

Originally Posted by Diver

Typical truck and bus diesel engines are inline 6 cylinder and have around 500 hp plus over 1000 lb-ft of torque from 11 liters.

He's correct

[lemetier]

Originally Posted by realtrevor

He's correct

Does anyone really believe the statement is meant for anything other than passenger cars? I doubt commercial vehicles and marine vessels are being compared or cross-shopped with this car.

[Dalecan]

Not available in North America; that sucks.

[squeaky]

Originally Posted by SCOTT26

What if it is not the Flagship Diesel?
Although it is for now.
They have developed a Power eDrive Diesel which would arrive for implementation in vehicles like the X7 and 9er. And more likely in the mid-life cycle of the 7er and the all new X5.

I wondered why BMW hadn't used a diesel with Power eDrive, so I'm looking forward to it. Now, I just hope it's sold in the U.S. in the X5.

[VTECaddict]

Originally Posted by kevinlevrone

To be honest, I don't think that keeping adding turbos is the way to the future.

I think Audi's new engine with turbos and an electrical supercharger is a way better solution, will full torque from 1000 RPM:

http://www.autoblog.com/2016/03/03/a...-tdi-official/

I think hybridization is a better solution than electric supercharging. The SQ7 already requires a separate high voltage system, battery, motor and generator for the supercharger (much like components required for a hybrid).

Putting an electric drive motor in the driveline or at the wheels would provide instant torque to the wheels from 0rpm/0mph. An electric supercharger still has to build up boost (no matter how quickly it does it, it's not instant), and the engine has to utilize that boost to make power before it's sent to the wheels.

In terms of complexity though, hybrid is probably more difficult to tune and get working smoothly and seamlessly. The electric supercharger you just need to regulate the total boost pressure of the entire system.

[R0ut3r]

Originally Posted by mkoesel

True enough. However, for the types of vehicles BMW manufactures, i.e. those meant for personal transportation - passenger cars and light trucks - the claim is correct. Agree though, that this could have been made more clear in the press material, sure.

You know these M43C marine engines weigh in the range of 80 to 100+ tons right?

I think the BMWs claim that this is the highest HP mass production diesel 6 cyl is accurate.

People seem to immediately compare to 8 cyl (or building sized marine engines) which I guess is the ultimate flattery for the BMW engineers behind this motor!

[mkoesel]

Originally Posted by R0ut3r

You know these M43C marine engines weigh in the range of 80 to 100+ tons right?

Yes.

I think the BMWs claim that this is the highest HP mass production diesel 6 cyl is accurate.

I didn't see the words "mass production" used in the press release. But you're right - that definitely would have made it more clear, which is exactly what my point was.

That said, sensibility should prevail - you don't have to argue that point with me.