new fuel pump/pressure question
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From: a galaxy far, far, away..., USA
new fuel pump/pressure question
my new walbro 255lph arrived today! i bought the regular intank because i plan an running lager injectors in the future. (right now greddy bluebok w/ 310's) how easy is the install? will i have to lower my fuel pressure due to the increased volume of flow from the new pump? all i have is a fuel pressure regulator...i know it's crude, but it'll have to do until hondata...etc...thanks
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From: Naples, Fl, USA
Re: new fuel pump/pressure question (downpipe)
Installation took me like 15 mins if that. It's a straight swap of your stock pump. Have you removed the stock pump or know how it's done?
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Re: new fuel pump/pressure question (VTC_CiViC)
i have the helms manual and it looks pretty easy. i haven't done too much of my own work but i've been getting my hands dirty as much as possible lately...trying to do more stuff myself. it comes with directions and it looks starightfoward enough...the picture of the stock pump in the helms manual looks quite different than the walbro pump...thats why i was wondering if there were any tricks/anything unexpeceted to watch out for.
thanks
thanks
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Re: new fuel pump/pressure question (dustin)
The pump flows more, but pressure can only be created by restrictions in the line after the fuel rail (aka the stock FPR).
Dustin
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Re: new fuel pump/pressure question (downpipe)
T
but does that mean that at the same fuel pressure the new pump will give me a richer a/f mixture than the stock one? or will i only notice a difference if i've been pushing the stock pump past its abilities?
but does that mean that at the same fuel pressure the new pump will give me a richer a/f mixture than the stock one? or will i only notice a difference if i've been pushing the stock pump past its abilities?
Dustin
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Re: new fuel pump/pressure question (dustin)
T
No, only an increase in pressure will affect fuel delivery.
Dustin
No, only an increase in pressure will affect fuel delivery.
Dustin
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From: a galaxy far, far, away..., USA
Re: new fuel pump/pressure question (downpipe)
i just did the install this morning. i DID notice an increase in pressure at the same regulator setting this pump pushes a higher pressure. AND when i lowered the fuel pressure back to where it was the car runs a bit richer. either my stock pump was crapping out, or volume does affect delivery regardless of pressure. any further ideas?
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