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#85784 - 04/09/05 06:56 PM fuel pressure with walbro 255 and stock regulator?
kyden Offline
Post Master Supreme


Registered: 12/20/99
Posts: 15410
Loc: Providence, RI
i just put in a walbro 255 pump.. and when i prime the fuel rail the pressure is around 42.. with the car at idle it's 42.. and at WOT its around 50.. how come WOT and prime is different? i thought they are supposed to be the same?
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#85785 - 04/09/05 08:10 PM Re: fuel pressure with walbro 255 and stock regulator?
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 19278
Loc: WV
Quote:

i just put in a walbro 255 pump.. and when i prime the fuel rail the pressure is around 42.. with the car at idle it's 42.. and at WOT its around 50.. how come WOT and prime is different? i thought they are supposed to be the same?




Seems reasonable.

Mine sits around 40'ish....
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#85786 - 04/10/05 03:53 PM Re: fuel pressure with walbro 255 and stock regulator?
99blusi Offline
Sr Member


Registered: 03/20/02
Posts: 1018
Loc: Michigan
I think I'm around 48psi while idling...
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1999 Civic Si...One Fab/SC61...b16 hotness

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#85787 - 04/10/05 04:24 PM Re: fuel pressure with walbro 255 and stock regulator?
boosted ek Offline
Member


Registered: 04/05/05
Posts: 754
Loc: lost...
Quote:

I think I'm around 48psi while idling...




same here. my tuner says it's normal since the walbro is pushing out a lot of fuel. i tried to turn it down with my shitty B&M regulator but it won't go down.

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#85788 - 04/12/05 07:12 AM Re: fuel pressure with walbro 255 and stock regulator?
treetotall Offline
Poster


Registered: 03/19/04
Posts: 235
Loc: Memphis, Tennessee
same here , around 48ish
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Greddy 18g 207whp-155tq Track time:14.2@102mph

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