Thread: BMW 435d tuning
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      06-14-2019, 07:18 AM   #22
CantSitStill
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Drives: 335i N54 19t FBO Pump + Meth
Join Date: Sep 2015
Location: Glasgow

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I know this is an old thread but does anyone know if you could install an upgraded low pressure fuel pump (lift pump) to gain the additional pressure to get to 450hp?

From reading this can help and makes decent power (obviously with a tune, dpf off). The 335i guys (I used to have one) do this mod to get there cars over 400hp. It's a common mod in the diesel truck world as well. Dam site cheaper than a new high pressure pump.

Also as far as I can see the Cp4.2 bosch high pressure pump will fit the 435d as well and it's good for 550-600hp. Looks to be cheaper than the m550d pump.



Quote:
Originally Posted by racediesel View Post
hello
i have same engine on my F11 535xd 2012 313ps model.N57.

you will get this model(75-volume high pressure fuelpump) about 390-405hp and 720-740nm.debends engine condition.

If you need more power,then you have to do:

-New downpipe,no dpf/cat.
-Wagner tuning intercooler.
-M550d high pressure fuelpump.
-New programming for engine.

outcoming are:
about 440-450hp and 850-880nm,depends how much programmer put time to find all out.

Greetings Pasi
Appreciate 0