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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 01-02-2013, 08:52 PM
drewski554 drewski554 is offline
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What engine (n20/n54/n55) does 2011 BMW 328i have?

quick q: n20/n54/n55: which engine does 2011 bmw 328i sedan have?
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  #2  
Old 01-02-2013, 09:01 PM
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tturedraider tturedraider is offline
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N52, naturally aspirated 3.0 liter inline six.
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  #3  
Old 01-02-2013, 10:16 PM
PartyBoyWA PartyBoyWA is offline
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or possibly the N51 South Africa SULEV
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  #4  
Old 01-02-2013, 11:44 PM
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SD Z4MR SD Z4MR is offline
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Quote:
Originally Posted by drewski554 View Post
quick q: n20/n54/n55: which engine does 2011 bmw 328i sedan have?
These are the gasoline engines that are/were available in the E9x and F30:
N20: 2.0L twin-scroll single turbocharged inline four cylinder, 240 HP (2013 F30 328i)
N52: 3.0L normally aspirated inline six cylinder, 230 HP (E9x 328i)
N54: 3.0L twin-turbocharged inline six cylinder, 300 HP (E9x 335i) or 320 HP (2011-2013 335is)
N55: 3.0L twin-scroll single turbocharged inline six cylinder, 300 HP (2011-2012 E9x 335i, 2013 F30 335i)

This is the diesel engine that was available in the E90:
M57: 3.0L inline six cylinder, 282 HP (E90 335d)

Full details on all engines can be found in Wikipedia.
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Last edited by SD Z4MR; 01-03-2013 at 11:05 AM. Reason: updated per posts below
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  #5  
Old 01-03-2013, 01:33 AM
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the kidd the kidd is offline
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Quote:
Originally Posted by SD Z4MR View Post
These are the engines that are/were available in the E9x and F30:
N20: 2.0L twin-scroll single turbocharged inline four cylinder, 240 HP (2013 F30 328i)
N52: 3.0L normally aspirated inline six cylinder, 230 HP (E9x 328i)
N54: 3.0L twin-turbocharged inline six cylinder, 300 HP (E9x 335i) or 320 HP (2011-2013 335is)
N55: 3.0L twin-scroll single turbocharged inline six cylinder, 300 HP (2012 E9x 335i, 2013 F30 335i)

Full details on all engines can be found in Wikipedia.
Doesn't the 2011 335 have the N55?
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  #6  
Old 01-03-2013, 02:06 AM
bmw325 bmw325 is offline
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Yes it does
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  #7  
Old 01-03-2013, 06:44 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by drewski554 View Post
quick q: n20/n54/n55: which engine does 2011 bmw 328i sedan have?

None.

Is it too much? You spec'd our choices....
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  #8  
Old 01-03-2013, 09:15 AM
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Quote:
Originally Posted by the kidd View Post
Doesn't the 2011 335 have the N55?
Fixed in OP. Thanks!
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  #9  
Old 01-03-2013, 09:35 AM
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Tom you forgot the M57 335d
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  #10  
Old 01-03-2013, 11:05 AM
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Tom you forgot the M57 335d
Fixed in OP. Thanks!
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  #11  
Old 01-03-2013, 11:23 AM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by SD Z4MR View Post
...
N54: 3.0L twin-turbocharged inline six cylinder, 300 HP (E9x 335i) or 320 HP (2011-2013 335is)
...
You can also get 320hp in the N54 with the ZMZ Performance Package upgrade. (You can't get the Overboost though).
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  #12  
Old 01-03-2013, 07:35 PM
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I have a 2011 328i and she has the N52: 3.0L normally aspirated inline six cylinder, 230 HP (E9x 328i).
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  #13  
Old 01-03-2013, 07:49 PM
alpinweiss alpinweiss is offline
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Quote:
Originally Posted by drewski554 View Post
quick q: n20/n54/n55: which engine does 2011 bmw 328i sedan have?
It will have either the N52 or the N51. If the car was originally sold in MA (or other New England state), there is a good chance it has the N51. The N51 engine is the SULEV version of the N52.

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  #14  
Old 01-03-2013, 08:12 PM
drewski554 drewski554 is offline
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Quote:
Originally Posted by alpinweiss View Post
It will have either the N52 or the N51. If the car was originally sold in MA (or other New England state), there is a good chance it has the N51. The N51 engine is the SULEV version of the N52.

You're RIGHT. Just checked some cars from cars.com and all have N51 engine

Is this a good thing or no? Not sure how this will impact my modification list
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  #15  
Old 01-03-2013, 09:02 PM
alpinweiss alpinweiss is offline
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Quote:
Originally Posted by drewski554 View Post
You're RIGHT. Just checked some cars from cars.com and all have N51 engine

Is this a good thing or no? Not sure how this will impact my modification list
I think the jury is still out on whether the N51 or the N52 is the better engine. The BMW claimed horsepower, torque, and performance are the same.

The N51 has some specialized low-emissions components. These could potentially be expensive in the future. But the emissions warranty on the N51 is either 120,000 or 150,000 miles, depending on the component. The N51 emissions warranty also is more comprehensive than the N52 emissions warranty. Overall, there does not seem to be a compelling reason to prefer one engine over the other.

On the E46 (previous generation 3-Series), the SULEV version (M56 engine) had a completely sealed fuel system, with no serviceable parts. Therefore, when the fuel pump failed, the entire fuel tank and system had to be replaced, at a cost of about $8000. Obviously, this is something buyers wish to avoid.

On the E90, all components (fuel pump, etc.) are individually replaceable. So theoretically, there is no post-warranty "ticking timebomb".

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Last edited by alpinweiss; 01-03-2013 at 09:05 PM.
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  #16  
Old 01-04-2013, 04:02 AM
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Thunder Dump Thunder Dump is offline
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Quote:
Originally Posted by alpinweiss View Post
It will have either the N52 or the N51. If the car was originally sold in MA (or other New England state), there is a good chance it has the N51. The N51 engine is the SULEV version of the N52.

The N51 is sold in any state that follows the CARB emissions rules 100% (which right now is New England states and CA).
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  #17  
Old 01-04-2013, 05:02 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by alpinweiss View Post
On the E46 (previous generation 3-Series), the SULEV version (M56 engine) had a completely sealed fuel system, with no serviceable parts. Therefore, when the fuel pump failed, the entire fuel tank and system had to be replaced, at a cost of about $8000. Obviously, this is something buyers wish to avoid.

On the E90, all components (fuel pump, etc.) are individually replaceable. So theoretically, there is no post-warranty "ticking timebomb".

Odd, isn't it. E9x N51's have a specially coated, pollution reducing radiator.

Don't ask me why anyone would want that other than eco crazies....a fortune to replace.

Europeans. Weird.
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  #18  
Old 01-04-2013, 06:27 AM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by CALWATERBOY View Post
...
Don't ask me why anyone would want that other than eco crazies....a fortune to replace.

Europeans. Weird.
No. Californians: Weird. And you're one, where there are eco credits available to manufacturers for selling SULEVs. Explains a lot.
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  #19  
Old 01-04-2013, 06:28 AM
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floydarogers floydarogers is offline
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Originally Posted by Thunder Dump View Post
The N51 is sold in any state that follows the CARB emissions rules 100% (which right now is New England states and CA).
You're completely forgetting (typical east coast perspective) the REST of the west coast: OR & WA.
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  #20  
Old 01-04-2013, 08:21 AM
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SD Z4MR SD Z4MR is offline
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Quote:
Originally Posted by alpinweiss View Post
It will have either the N52 or the N51. If the car was originally sold in MA (or other New England state), there is a good chance it has the N51. The N51 engine is the SULEV version of the N52.

Interesting that Wikipedia only mentions the N51 with the E46. No mention of this engine with the E9x. Someone that has more knowledge of this engine than me needs to edit Wikipedia!
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  #21  
Old 01-04-2013, 05:09 PM
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Thunder Dump Thunder Dump is offline
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Originally Posted by floydarogers View Post
You're completely forgetting (typical east coast perspective) the REST of the west coast: OR & WA.
I wouldn't ever complain about being left out of a discussion that revolves around California.
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  #22  
Old 01-04-2013, 05:21 PM
drewski554 drewski554 is offline
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i wouldn't ever complain about being left out of a discussion that revolves around california.
+1
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  #23  
Old 01-04-2013, 05:35 PM
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SD Z4MR SD Z4MR is offline
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Quote:
Originally Posted by Thunder Dump View Post
I wouldn't ever complain about being left out of a discussion that revolves around California.
Quote:
Originally Posted by drewski554 View Post
+1
Yawn. It's supposed to be around 70 tomorrow. I think I'll wash my car in shorts, t-shirt and flip-flops and then drive around all afternoon with my top down.
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