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E60 (2004 - 2010)
BMW 5-Series (E60 chassis) was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E60 is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 09-29-2005, 08:51 AM
beamerlow beamerlow is offline
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How Do You Get 255 Horses out of the 3 liter motor?

I just bought my wife a 2006 525i for my wife that has 215 horses. The manager says that is is the same motor that is in the 530 and if I did some modication we can get 255 horses out of the motor. Does anybody know how to do that? And does it hurt gas mileage because on the spec sheets show the same mileage from the 525 and the 530.

Thanks in advance.
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Old 09-29-2005, 08:54 AM
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hugh1850 hugh1850 is offline
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Quote:
Originally Posted by beamerlow
I just bought my wife a 2006 525i for my wife that has 215 horses. The manager says that is is the same motor that is in the 530 and if I did some modication we can get 255 horses out of the motor. Does anybody know how to do that? And does it hurt gas mileage because on the spec sheets show the same mileage from the 525 and the 530.

Thanks in advance.
The motor is 3.0 Liter 6 cyl. It would be cheaper to buy a 530i rather than modify the 3.0 l 6 cyl. in the 525i

(Moderator Note: I edited the subject title from 'cylinder' to 'liter')
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Last edited by Ågent99; 09-29-2005 at 09:51 AM.
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Old 09-29-2005, 09:46 AM
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Ågent99 Ågent99 is offline
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Agreed...you should have gotten the 3 liter engine to begin with.
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Old 09-29-2005, 09:53 AM
mattldm mattldm is offline
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Both 525 and 530 engines are 3.0L
The 525 engine has a single stage intake and detuned software. 215Hp
the 530 engine has a three stage intake and and different software. 255Hp

Thats really the only difference
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Old 09-29-2005, 09:56 AM
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Quote:
Originally Posted by beamerlow
I just bought my wife a 2006 525i for my wife that has 215 horses. The manager says that is is the same motor that is in the 530 and if I did some modication we can get 255 horses out of the motor. Does anybody know how to do that? And does it hurt gas mileage because on the spec sheets show the same mileage from the 525 and the 530.

Thanks in advance.
The reason BMW put the 3 l I6 into the 525 was to meet emissions requirements. It is detuned from the 530, and has a slightly less efficient and less complex air intake, which accounts for the difference in torque and hp. It would be cheaper to have gotten a 530 than to try to upgrade the 525.
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