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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > 360PS X4 M40i leaked - M2 engine specs I guess?

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      09-26-2015, 05:02 AM   #1
swagon
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360PS X4 M40i leaked - M2 engine specs I guess?

So it is an N55 engine then

- 2979 cm3
- 360 PS @ 5800-6000 RPM
- 465 Nm @ 1350-5250 RPM




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      09-26-2015, 05:43 AM   #2
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Specs are just fine for me, the biggest thing is how it feels and responds.
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      09-26-2015, 05:56 AM   #3
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This doesn't sound like a "M" engine like we know them from the past. It reaches the 360 PS at 5800 - 6000 U/min. That max output at 5800 - 6000 U/min is very low for a "real" M engine. The M4 reaches its max output between 5500 - 7300 U/min. Furthermore you can read "M Performance Twin Power Turbo" and not "M Twin Power Turbo". The M2 won't be a "M Performance" 2 Series like the M235i, so this wouldn't match.

And I talked with my source this morning and he said that he do not think that this will be the M2 engine.
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      09-26-2015, 06:07 AM   #4
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^^ Agree.

The '40i N55 engine is too limited at the top end RPM. At least the 35i attains max power up to 6400rpm.

The M2 version needs to beat this and hold more power to the redline to make it a satisfying drive as a M car.
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      09-26-2015, 06:24 AM   #5
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We in germany speak at the moment of 272 KW / 370 PS for the upcoming M2. Several sources (quality, not AutoBild or something else..) say that.
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      09-26-2015, 07:33 AM   #6
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Quote:
Originally Posted by Bamowe View Post
This doesn't sound like a "M" engine like we know them from the past. It reaches the 360 PS at 5800 - 6000 U/min. That max output at 5800 - 6000 U/min is very low for a "real" M engine. The M4 reaches its max output between 5500 - 7300 U/min. Furthermore you can read "M Performance Twin Power Turbo" and not "M Twin Power Turbo". The M2 won't be a "M Performance" 2 Series like the M235i, so this wouldn't match.

And I talked with my source this morning and he said that he do not think that this will be the M2 engine.
Did you forget that the 1M did pretty much all of that? And it wasn't an MPA car either
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      09-26-2015, 09:09 AM   #7
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Quote:
Originally Posted by W/// View Post
Did you forget that the 1M did pretty much all of that? And it wasn't an MPA car either
No, I didn't forget that but you shouldn't compare the 1M with the M2 in this case I think. The 1M was the first M with a Turbo engine. Now BMW has much more experience building high revving turbo engines duo to the S55. The M235i gets his peak (PS) at 5800 - 6000 U/min and I would expect that the M2 should be able to get its peak a little bit higher. That is what I expect for a M engine compared to a "M performance" engine.
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      09-26-2015, 11:01 AM   #8
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Last edited by ABPReader; 10-14-2015 at 03:33 AM..
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      09-26-2015, 12:12 PM   #9
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Quote:
Originally Posted by Bamowe View Post
No, I didn't forget that but you shouldn't compare the 1M with the M2 in this case I think. The 1M was the first M with a Turbo engine. Now BMW has much more experience building high revving turbo engines duo to the S55. The M235i gets his peak (PS) at 5800 - 6000 U/min and I would expect that the M2 should be able to get its peak a little bit higher. That is what I expect for a M engine compared to a "M performance" engine.
Actually you are not right. Z4 35is had the same exact engine (and specs) as the 1 M Coupe, and it came on the market in early 2010. The official specs say "valid from 3/2010" while the 1 M's were valid from 3/2011.

1 M/35is' peak power was at 5,900 RPM, btw.

N54 was already three four years old so in my opinion they were not exactly new to the game.

My point is, though, that there might be analogy between the Z4/1M and X4/M2 again. Same engine but maybe with slight SW changes (or HW - who knows).
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      09-26-2015, 01:21 PM   #10
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Very sad to see these M performance engines thrown under the hood of M cars.

It was sad with the 1M, but excusable due to the lack of development time, however this time around it's just pathetic and inexcusable.
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      09-26-2015, 02:38 PM   #11
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That's what we're getting and you guys better get used to it. I'm just hoping for adequate aftermarket tuning headroom. 420hp would do
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      09-26-2015, 02:42 PM   #12
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Quote:
Originally Posted by Ramos
Very sad to see these M performance engines thrown under the hood of M cars.

It was sad with the 1M, but excusable due to the lack of development time, however this time around it's just pathetic and inexcusable.
+1

Much about BMW has changed in the last 10yrs. And not for the better.
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      09-26-2015, 02:44 PM   #13
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This doesn't bother me at all. Presumably, the M division is going to take the N55 and modify it to meet their standards. The N55 is a great engine and will that much better once the M folk get done with it.
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      09-26-2015, 04:12 PM   #14
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Quote:
Originally Posted by Gibson6594 View Post
This doesn't bother me at all. Presumably, the M division is going to take the N55 and modify it to meet their standards. The N55 is a great engine and will that much better once the M folk get done with it.
Unfortunately it doesn't work like that. Case in point: 1M.
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      09-26-2015, 04:53 PM   #15
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Quote:
Originally Posted by Die ///M Rakete View Post
Unfortunately it doesn't work like that. Case in point: 1M.
Can you please elaborate?
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      09-26-2015, 05:07 PM   #16
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Think he's saying that the 1M had the identical engine from the Z4 35is so the M2 could very likely get the identical engine from the 40i cars..
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      09-26-2015, 05:27 PM   #17
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None of this criticism will matter once people actually drive the car.
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      09-26-2015, 05:36 PM   #18
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In October 2014 forum fellow ynguldyn already indicated that the X4 M40i and M2 both will feature the N55B30T0 engine.

Quote:
Originally Posted by ynguldyn View Post
[...]
F26 SOP 12/15 EOP 03/18:
- X4 M40i, N55B30T0, manual and auto
[...]
F87 SOP 11/15:
- BMW M2, N55B30T0, manual and auto
Quote:
Originally Posted by ynguldyn View Post
- B57 is a diesel. S engines traditionally have model numbers of the mainstream engines they're based on, which is why we should expect S58 or (wouldn't that be fun?) S48, not S57.
- "M performance" models are not products of BMW M GmbH. They never get S engines.
- On the other hand, X4 M40i is indeed planned to get the same engine as M2, the top tune version of N55 I wrote about before.
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      09-26-2015, 06:17 PM   #19
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Y'all's complaints are ridiculous. You want spec sheet horsepower? Shut up and go buy a CTS-V.
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      09-26-2015, 06:29 PM   #20
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It's really the same story over and over again. M3 with a turbo - outrage! M versions of X5 and X6 - outrage! 10 cylinder M5 - outrage! 8 cylinders in M5 again, but with a turbo - outrage! When BMW announces an xdrive M car, it will be - you guessed it - outrage! all over again. And so on, ad infinitum.

BTW that 1M with the "excusable" engine is a collectible now.
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      09-26-2015, 06:44 PM   #21
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Quote:
Originally Posted by ynguldyn
Y'all's complaints are ridiculous. You want spec sheet horsepower? Shut up and go buy a CTS-V.
It's not about horsepower at all, you are not getting what we are saying, it's about engine feel and character.

I wouldn't mind a detuned S55 with the same 370 hp, I want an engine that has character, builds revs fast and doesn't run out of steam in the higher RPM ranges, also it needs to rev to at least 7500 rpm. I can't justify an N55 M2 because a) I already have an M235 and b) the M3 exists and to me seems like a better value than an N55 M2
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      09-26-2015, 06:46 PM   #22
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Quote:
Originally Posted by ynguldyn
It's really the same story over and over again. M3 with a turbo - outrage! M versions of X5 and X6 - outrage! 10 cylinder M5 - outrage! 8 cylinders in M5 again, but with a turbo - outrage! When BMW announces an xdrive M car, it will be - you guessed it - outrage! all over again. And so on, ad infinitum.

BTW that 1M with the "excusable" engine is a collectible now.
True but think how more special and collectible it would have been with a bespoke engine.

The M2 with the N55 engine and higher production volume is not going to be a collectible. The 1M is because it was so rare.
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