fuel pump and injectors

The club for Nissan Maxima and Infiniti I30 / I35 owners, and the official home of Maxima Club of America!
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GriffinW
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Joined: Sat Sep 16, 2006 5:19 pm
Car: 1991 S13 KA-T

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Most of the boosted maximas out there run 370cc injectors or larger and they also tend to go with the walbro 255 fuel pump. I know this is to match the amount of gas with the larger amount of air that is introduced, but do you think a non-forced induction maxima would benefit from these mods at all?


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MinisterofDOOM
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Joined: Wed May 19, 2004 5:51 pm
Car: 1962 Corvair Monza
1961 Corvair Lakewood
1974 Unimog 404
1997 Pathfinder XE
2005 Lincoln LS8
Former:
1995 Q45t
1993 Maxima GXE
1995 Ranger XL 2.3
1984 Coupe DeVille
Location: The middle of nowhere.

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Not really. Neither is being pushed to its limits with an NA car. The reason FI cars use better injectors and fuel pumps is because they NEED them. There's nothing to make use of higher-flowing injectors on an NA engine (at least, not one that's not pretty heavily built).

I have a Walbro in my car, simply because it was cheaper than an OEM replacement. Haven't had any problems with it, but I haven't gained anything. Any fuel beyond what's needed simply recircs.My fuel pump is LOUD sometimes, which is apparently normal for walbro pumps...


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