1er M /// Twin Scroll or Twin Turbo?

[ORIGIN M.]

http://www.bmw.de/de/de/newvehicles/...ne.html#media0

[ORIGIN M.]

A few months ago, Scott26 wrote:

...I am going to give you a clue.... The 1M powertrain is a Hybrid. And when I mean Hybrid do not think of the current meaning of "Hybrid" - ie Alternative power , Electricity etc.... and use the original meaning of hybrid. " When Two seperate entities become one".

[Future M1 owner]

It's twin turbo. The airbox shown in the pics of the engine bay is shaped to feed two turbos as on other N54 variants.

[mlai]

Twin Scroll + Twin Turbo!!!!!

[marcel b]

it the BMW press release it is written that it has two small turbos. But I am confused about the text as well. Technically, 2 twinscrol turbos are not possible with a 6 cylinder engine.

[ORIGIN M.]

I'm thinking N54 Long Block, w/Twin Scroll off of the N55

[marcel b]

Originally Posted by red-sauerkraut

I'm thinking N54 Long Block, w/Twin Scroll off of the N55

you know how twinscroll works? This is not possible.

In the press release it is written it has 2 small turbos filling 3 cylinders each, meaning normal N54 twin turbo.

[ORIGIN M.]

Your saying a single turbo cannot be mounted on a n54?

I know what they said. But I also know twin~power is the new term for the twin scroll turbo on the 2011 and newer x35i models.

Originally Posted by marcel b

you know how twinscroll works? This is not possible.

In the press release it is written it has 2 small turbos filling 3 cylinders each, meaning normal N54 twin turbo.

[sparoz]

1M engine specs = z4 3.5is specs. Improvement in acceleration for both was also 0.4 from 0-100 compare to the x35i counter part. Apart from the extra cooling (just referring the engine), I couldn't see any improvements over the z4 is, just looking at its specs. The difference is the 0.4s improvement for the z4 was achieved using a DCT, while both the 135i, 1M both uses a manual transmission.

It doesn't answer the poser question, but on the surface, it seems that both engines are the same - ie twin turbo, but the results are somewhat different?

[MrRoboto]

twin low-mass turbochargers

read the press release.

[TunedM2C]

Originally Posted by MrRoboto

twin low-mass turbochargers

Are these the same turbo part numbers though as found in all N54 engines? That's what I want to know.

[southlight]

Originally Posted by red-sauerkraut

http://www.bmw.de/de/de/newvehicles/...ne.html#media0

It's the twin turbo (single scroll) layout as found in the N54. BMW's usage of the term 'TwinPower' is a little confusing as it can mean either twin scroll or twin turbo.


Best regards,
south

[marcel b]

Originally Posted by red-sauerkraut

Your saying a single turbo cannot be mounted on a n54?

I know what they said. But I also know twin~power is the new term for the twin scroll turbo on the 2011 and newer x35i models.

what I was referring to is putting 2 twin scroll turbos on a N54 (or any 6 cylinder engine).

[MrRoboto]

twin low-mass turbochargers

[MDORPHN]

Originally Posted by Tuned1

Are these the same turbo part numbers though as found in all N54 engines? That's what I want to know.

Good question, especially since there had been a couple of seemingly credible reports suggesting that the N54 was fit with upgraded turbos.

However, I don't believe that this is the case since the hp/torque figures that have now been published are identical to the Z4 sDrive35is.

Based on this, I suspect that the hardware and software are the same.

I would, of course, be delighted if I were wrong!

Neil