N54 port injection question

scymatical · 08-01-2024, 08:29 AM

Do you have to run 2 fuel pumps for port injection or can you run 1 big fuel pump to run it?

whyzee125 · 08-02-2024, 11:53 AM

Quote:

Originally Posted by scymatical

Do you have to run 2 fuel pumps for port injection or can you run 1 big fuel pump to run it?

Generally speaking, if you need enough fuel for port injection you'll need to run 2 pumps but yes, you can run PI off of one large pump like a Walbro 535

scymatical · 08-03-2024, 05:32 PM

Yea I currently have a 535 pump so I’m guessing there is a T I can buy for the port injection line

whyzee125 · 08-04-2024, 02:14 AM

Quote:

Originally Posted by scymatical

Yea I currently have a 535 pump so I’m guessing there is a T I can buy for the port injection line

Yes, all the PI kits will come with lines to T off with one side going to the HPFP and the other to the PI rail

08-01-2024, 08:29 AM	#1
scymatical New Member 2 Rep 18 Posts Drives: E93 335i Join Date: Jul 2024 Location: Texas iTrader: (0)	N54 port injection question Do you have to run 2 fuel pumps for port injection or can you run 1 big fuel pump to run it?
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08-03-2024, 05:32 PM	#3
scymatical New Member 2 Rep 18 Posts Drives: E93 335i Join Date: Jul 2024 Location: Texas iTrader: (0)	Yea I currently have a 535 pump so I’m guessing there is a T I can buy for the port injection line
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