Very strage
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Originally Posted by kkte' post='298869' date='Jun 17 2006, 07:16 AM
I think it is very strange!Why BMW stop its 520i production?
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But i 523i horse power is 178(i searched it on the web)and 520i is 170.The difference about the power was not so big.....and we have to pay alot for it.I admit 523 is more powerfull,but the fuel consumsion is more.And the difference between them is only 7 horse power?
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I THINK that he 520i had the same engine as the e46 (old 3 series) 320i.
Back then the 320i was the entry level 6 cylinder model and like the 520i it had a 2.2 litre engine.
They also sold the 318 - which confusingly had a 2 litre engine (4 cyl) and the 316 which had a de-tuned version of the same 2 litre engine.
The 2.2 litre engine is no longer used in the e90 and the model no's now make a little more sense with the 320 having a 2 litre engine again.
If BMW had kept the 520i - it would either have had the old engine (which they wanted to drop) or drop back to a 4cyl 2.0l which would have looked like a backward step.
Which is why I think they dropped the 520i and instead intorduced the 523i which a detuned 2.5l 6 cyl engine.
This keeps all the 5's as 6 cyl engines - which is what I think BMW intend in terms of refinement (excpet the 520d which is very much aimed at a company car driver and hence a comprimise of power and economy).
Back then the 320i was the entry level 6 cylinder model and like the 520i it had a 2.2 litre engine.
They also sold the 318 - which confusingly had a 2 litre engine (4 cyl) and the 316 which had a de-tuned version of the same 2 litre engine.
The 2.2 litre engine is no longer used in the e90 and the model no's now make a little more sense with the 320 having a 2 litre engine again.
If BMW had kept the 520i - it would either have had the old engine (which they wanted to drop) or drop back to a 4cyl 2.0l which would have looked like a backward step.
Which is why I think they dropped the 520i and instead intorduced the 523i which a detuned 2.5l 6 cyl engine.
This keeps all the 5's as 6 cyl engines - which is what I think BMW intend in terms of refinement (excpet the 520d which is very much aimed at a company car driver and hence a comprimise of power and economy).
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i dont think the e46 engine and 390 520 engine is the same.Incording to my search.The 520 engine is mostly like the 523 engine but only 0.3 litres more.And i think 520i is powerfull enought for safe riders.If you are a racer that maybe not enought.But do you guys in U.S buy BMW for racing?Because in malaysia the car is too expensive so we took great care at our cars.
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The EU version of 523i have a downtuned 2.5l engine for shure.
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Originally Posted by kkte' post='298869' date='Jun 17 2006, 03:16 PM
I think it is very strange!Why BMW stop its 520i production?
The new 4 cyl 2 litre 150 hp and 200 Nm at 3600 rpm do not have the power to move a E60.
The M54 car engine family is gone too (520i, 525i and 530i),
the current R6 engines are coded N52.
The 523i N52B23 has replaced the 520i M54B22.
The 520d has a good torque (340 Nm at 2000 rpm) even if it only has 163 hp.
Soon we'll get the whole new N54 family R6 engines (with DI).
The first example is the N54B35 twin-turbo (306 hp and 400 Nm from 1500 rpm).
I quess that the new E92 328Ci N54 engine is also the new 525i for EU.
Also the V8 will get the Direct Injection.
PS. To mppockaj: The E60 is a bit lighter (about 60 kg/120 pounds) than the E39 do to the alu front frame!
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Originally Posted by kkte' post='298907' date='Jun 17 2006, 03:07 PM
i dont think the e46 engine and 390 520 engine is the same.Incording to my search.The 520 engine is mostly like the 523 engine but only 0.3 litres more.And i think 520i is powerfull enought for safe riders.If you are a racer that maybe not enought.But do you guys in U.S buy BMW for racing?Because in malaysia the car is too expensive so we took great care at our cars.
2.2 litre engine (520i / 320i) is the M54B22
http://www.e60.net/information/options/engines/M54B22/
Says here that it was also used in the 320i:
http://en.wikipedia.org/wiki/BMW_M54
523 uses a 2.5l N52B25 engine (although it says N52B23 on the info page):
http://www.e60.net/information/options/engines/N52B23/
The 523 uses a de-tuned version of the N52B25 used in the 525i as does the E90 323
http://en.wikipedia.org/wiki/BMW_N52
The two sources posted are the best if you want to understand the BMW engine range (which is genuinely confusing).
Like I said in my post - I don't think it was about power. It was simply that BMW had an opportunity and need to revise the engine range for the e90 and that they therefore had to revise the 5 series engines too.
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Originally Posted by needforspeed' post='299597' date='Jun 19 2006, 05:39 PM
The 520i engine is the one that was in the 320i:
2.2 litre engine (520i / 320i) is the M54B22
http://www.e60.net/information/options/engines/M54B22/
Says here that it was also used in the 320i:
http://en.wikipedia.org/wiki/BMW_M54
523 uses a 2.5l N52B25 engine (although it says N52B23 on the info page):
http://www.e60.net/information/options/engines/N52B23/
The 523 uses a de-tuned version of the N52B25 used in the 525i as does the E90 323
http://en.wikipedia.org/wiki/BMW_N52
The two sources posted are the best if you want to understand the BMW engine range (which is genuinely confusing).
Like I said in my post - I don't think it was about power. It was simply that BMW had an opportunity and need to revise the engine range for the e90 and that they therefore had to revise the 5 series engines too.
2.2 litre engine (520i / 320i) is the M54B22
http://www.e60.net/information/options/engines/M54B22/
Says here that it was also used in the 320i:
http://en.wikipedia.org/wiki/BMW_M54
523 uses a 2.5l N52B25 engine (although it says N52B23 on the info page):
http://www.e60.net/information/options/engines/N52B23/
The 523 uses a de-tuned version of the N52B25 used in the 525i as does the E90 323
http://en.wikipedia.org/wiki/BMW_N52
The two sources posted are the best if you want to understand the BMW engine range (which is genuinely confusing).
Like I said in my post - I don't think it was about power. It was simply that BMW had an opportunity and need to revise the engine range for the e90 and that they therefore had to revise the 5 series engines too.