Will i need a fuel pressure regulator?
I just bought a high flow 255 lph fuel pump, I have a t3t04 turbo going to be on a b18b pushin about 8 psi and using an fmu, any suggestions?
don't want anything to go wrong.

Thanks,
Bryan

 

not really, it will raise the fp 1-2 psi at the rail. Search, it has been covered.

Of course, some people say you need one because their pressure went really high, but what do I know. Install the pump and if you pressure is too high then put one in, you will just run a bit richer. As long as you idle fine, you do not need one - just install the pump first and see.

 

ok, ill do that,
thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Talon12bp &raquo;</TD></TR><TR><TD CLASS="quote">ok, ill do that,
thanks</TD></TR></TABLE>
no prob, let everyone know what happens.

 

i have a walbro 255 with a stock fuel pressure regulator and it works fine. i'm using hondata and not a fmu setup, but its on a b18b w/ 10psi - working great so far

 

I have a B&M fuel pressure regulator but I wanna fit a walbro 255 in the future, do i keep the B&M in there? or remove it? and search for a stock fuel pressure reg.?
any suggestions would be good

 

You can keep the B&M in there but it won't lower the fuel pressure if you need it to...

 

What's the best fuel regulator out there for its price. I have an LS/Vtec turbo running 8 psi and need one.

Thanks,

Maurice

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16ahybrid &raquo;</TD></TR><TR><TD CLASS="quote">You can keep the B&M in there but it won't lower the fuel pressure if you need it to...</TD></TR></TABLE>

then how would u go about lowering it?

 

I have a b&m and I can set the pressure within spec (according to the helms).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igotyofire &raquo;</TD></TR><TR><TD CLASS="quote">

then how would u go about lowering it?</TD></TR></TABLE>

Get an actual fuel pressure regulator and not a fuel pressure riser like the B&M.
The B&M is just a riser. It can lower the fuel pressure about 10psi with a stock fuel pump, once you install i high flow/pressure pump it cant lower the fuel pressure because the output oraface is still stock and too small

 

I forgot to mention I have a walbro 255 lph. But, I guess if for some reason you wanted to lower your pressure below stock you might be right - I haven't tried.


Modified by slashDEVslashNULL at 1:24 PM 11/28/2003

 

so theoretically i will be fine as far as running lean not happening, if i don't get a regulator? just running the walbro 255 lph in place of the stock pump,
the turbo running @ 6 psi will work good for the stock injectors on the b18b?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Talon12bp &raquo;</TD></TR><TR><TD CLASS="quote">so theoretically i will be fine as far as running lean not happening, if i don't get a regulator? just running the walbro 255 lph in place of the stock pump,
the turbo running @ 6 psi will work good for the stock injectors on the b18b?</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slashDEVslashNULL &raquo;</TD></TR><TR><TD CLASS="quote">I forgot to mention I have a walbo 255 lph. But, I guess if for some reason you wanted to lower your pressure below stock you might be right - I haven't tried.</TD></TR></TABLE>

no, generally when you run a high pressure fuel pump it raises your fuel pressure at idle so you would want to lower it back down to stock, not below stock....btw i have a 255lph holley hp....and my fp jumed to about 58psi at idle

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16ahybrid &raquo;</TD></TR><TR><TD CLASS="quote">

no, generally when you run a high pressure fuel pump it raises your fuel pressure at idle so you would want to lower it back down to stock, not below stock....btw i have a 255lph holley hp....and my fp jumed to about 58psi at idle</TD></TR></TABLE>

You don't understand what I said - the point was that I have stock pressure with the B&M and walbro 255lph HP. I have spoken to several people running stock fpr and they have only experienced a 1-2 psi increase in pressure at idle. I know that there is a slight difference in pressure between some of the oem reg. Maybe that accounts for your high pressure.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted hybrid &raquo;</TD></TR><TR><TD CLASS="quote">
the stock FPR will be fine for 500-550whp range. I've measured with the walbro 255lph pump only changes 1-2 psi higher fuel pressure at the fuel rail.
</TD></TR></TABLE>

Works for him, works for me.


Modified by slashDEVslashNULL at 3:47 PM 11/28/2003

 

Is your the high pressure or just the 255lph?

 

I heard if you dril a hole in the fpr using a b&M you can lowerd the pressure is this true?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by booscivic &raquo;</TD></TR><TR><TD CLASS="quote">I heard if you dril a hole in the fpr using a b&M you can lowerd the pressure is this true?</TD></TR></TABLE>

yes

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16ahybrid &raquo;</TD></TR><TR><TD CLASS="quote">Is your the high pressure or just the 255lph?</TD></TR></TABLE>

high pressure

 

do i still need to use an fmu for now? or will the fuel pump alone work ok?
im going to be running 6 psi

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Talon12bp &raquo;</TD></TR><TR><TD CLASS="quote">do i still need to use an fmu for now? or will the fuel pump alone work ok?
im going to be running 6 psi</TD></TR></TABLE>
If you do not have any other form of fuel management YES you need an fmu.

 

My stock fuel pressure was 32psi (D16Z6) and after the 255lph its at 40psi at idle

 

there are never any consistent answers to these "will i need a fpr if i use a warlbro 255lph" questions. lol

 

there are never any consistent answers to these "will i need a fpr if i install a warlbro 255lph pump" questions. lol