phiberoptik

I cant find the directions for the fpr and Im sorry this is a stupid question but which way do I turn the screw on top of the fpr to lower the fuel pressure? Do I screw it down (tighten it) or loosen it? If I loosen it much morethe screw is going to come out. WHat do I do? I didnt really do anything to the fpr when I installed it. I just put the screw in the top and threaded it a couple times and then locked the nut on it.

Ive got:
walbro 255lph in tank
sx 1:1 fpr
aem rail
rc 550s
f-t.com line kit
and a chipped ecu (basically uberdata)

what do you think?

b18bturbo

turn left to loosen and turn right to make it go up





Modified by b18bturbo at 7:49 PM 6/27/2004

phiberoptik

but what do you do when its loosened all the way up?

Adriano

if you have it all the way out and it still wont go below 75psi, than you have a problem with the instalation or the fpr itself.

phiberoptik

its connected to the end of the rail and ss line is ran fron the bottom of it to the stock hard line. the vacuum line is ran to it also... what am I missing?

edit: also, there is a tiny tiny bit of fuel fizzing out of the gold allen head flush-fit screw in the front of the fpr. any idea there? my fuel pressure went over 90psi this last time of priming. the screw is all the way loose.

i have no experience with fprs but wouldnt tightening it make the valve close and cut off the amount of fuel allowed to the rail, thus making less pressure and if its all the way open then as much fuel can flow that wants, thus increasing pressure? help?!?!?!

b18bturbo

you are correct turn it down ot tighten it up and turn it left to loosen it up and gain pressure it should not be at 75psi though set it with the vaccumm off

Boostfed

Clockwise to tighten and raise fuel pressure and counterclockwise to lower fuel pressure.

gritsak

sure your return isnt kinked or blocked with something?...does the pressure raise when you tighten it or stay the same?

phiberoptik

everything appears fine. no kinks in anything.

ill mess with it again tomorrow... BUMP for night crew help!

phiberoptik

changing it with the vacuum off... while the car is on or off? Sorry but I have never had to use a fpr before and I can not find the directions that came with it... anyone care to explain the process of changing fuel pressure.

phiberoptik

bump for more help

Pootie

make sure the fitting from your rail to the regulator isn't bottoming out against the inside of the regulator....not much room to play with in there and it's an easy mistake

4-banging

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

what kinda FPR gauge do you have? it might have crap'd out on ya I know from experience

phiberoptik

b&m that i got with an old b&m fpr... it worked fine when I had it connected to the filter (before SS lines and earls fittings).

it is now screwed into the rail, about an inch or so from the fpr.

should the gauge still read any fuel pressure after 12 hours of the car sitting? I looked at it the next day after it showed me over 80psi of pressure and atleast 12 hrs later it still was reading 21psi, as if the pressure isnt going away after the car is off.

4-banging

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phiberoptik &raquo;</TD></TR><TR><TD CLASS="quote">b&m that i got with an old b&m fpr... it worked fine when I had it connected to the filter (before SS lines and earls fittings).

it is now screwed into the rail, about an inch or so from the fpr.

should the gauge still read any fuel pressure after 12 hours of the car sitting? I looked at it the next day after it showed me over 80psi of pressure and atleast 12 hrs later it still was reading 21psi, as if the pressure isnt going away after the car is off.</TD></TR></TABLE>

gauge is FUBAR'd...do you have any buddies around that can swap out theirs to try it out??

phiberoptik

i mentioned it to a local shop and he didnt know what was up. i bought a new gauge but he insisted that I recheck everything to make sure. anyone else have an idea?

phiberoptik

new fuel gauge on... jumped to 50-60 and its fluttering all around... HELP!!!

phiberoptik

fitting from rail to fpr is bottoming out.. how do I avoid this and still get the fitting to screw tight??

JonGP4

sounds like u hooked up it back wards, return fuel goes to the bottom hole, and feed is through the side..

phiberoptik

this is how its hooked up? what gave you the idea that I had it backwards?

for the time being, I taped the threads extra thick and wrenched it down half way so that the fitting isnt bottoming out anymore. I now have solid fuel pressure. Thanks for the help everyone.

anyone have any ideas for a permanent fix other than grinding away part of the fitting to make it shorter?

4-banging

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phiberoptik &raquo;</TD></TR><TR><TD CLASS="quote">anyone have any ideas for a permanent fix other than grinding away part of the fitting to make it shorter?</TD></TR></TABLE>

contact Stan aka "Flamenco-T" for your fuel line kit

phiberoptik

thats where I got the stuff.. called last night waiting or a return call.