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spec jarek
7th April, 2020, 11:31 AM
Hi guys!
I have a BMW E61 with a N52B25U1 177PS * engine, an intake manifold with an additional flap from the N52B25O1 engine * has been installed in this engine, ECU MSV70
Can you raise the power to 218PS, as in N52B25O1?
http://www.bmw-archive.org/m-code/n52b25o1.html.
Are the N52B25U1 and N52B25O1 engines the same?

maajkii
7th April, 2020, 11:59 AM
Hi guys!
I have a BMW E61 with a N52B25U1 177PS * engine, an intake manifold with an additional flap from the N52B25O1 engine * has been installed in this engine, ECU MSV70
Can you raise the power to 218PS, as in N52B25O1?
http://www.bmw-archive.org/m-code/n52b25o1.html.
Are the N52B25U1 and N52B25O1 engines the same?Is not only intake manifold difference. ;)

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spec jarek
7th April, 2020, 12:06 PM
thank you!
can you say something more.
And do you know how much power you can get from this engine?

spec jarek
13th April, 2020, 02:21 PM
Can anyone help with this problem?
I have a modified MAP, but there is no effect.

I changed
11617559523 Intake manifold
11617559530 Breather hose
11617579114 Control unit
11617560538 Control unit.
But I think both Adjustor Unit are not working properly.
Can somebody check that?


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