BMW 3-Series (E90 E92) Forum - View Single Post - N54 Fueling question. About to upgrade turbos....

HKD126 · 07-17-2019, 08:48 AM

I’m about to do a PureStage 2 turbo upgrade on a FBO 335xi running BMS methanol injection with a JB4/MHD backend. With this setup will I need to upgrade my LPFP to push to mid 500’s with just 93 and methanol? I have no intention of running e85, but didn’t know if the stock fuel pump will be able to keep up with demands of the newer turbos running more power.

Thanks.

07-17-2019, 08:48 AM	#1
HKD126 Captain 347 Rep 801 Posts Drives: 2014 335i, 2009 335xi Join Date: Jun 2016 Location: Wisconsin iTrader: (0)	N54 Fueling question. About to upgrade turbos.... I’m about to do a PureStage 2 turbo upgrade on a FBO 335xi running BMS methanol injection with a JB4/MHD backend. With this setup will I need to upgrade my LPFP to push to mid 500’s with just 93 and methanol? I have no intention of running e85, but didn’t know if the stock fuel pump will be able to keep up with demands of the newer turbos running more power. Thanks.
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