walbro 255 pressure at the rail..........?

[mr.prick]

my mechanical gauge on my fuel rail reads 70psi.
i would like to know if that sounds about right
to anyone that has logged fuel pressure with the walbro 255.
please let me know what you ended up using for your IFR values.
i ask because at start up i see 72psi and,
after the car is warmed up i see 70psi and at RPM it gets hard to read,
it will bounce around 68-72psi or so.
i have used 68psi for my IFR values but i am wondering if it is best to
use average or minimum or maximum.
i am using stock fuel rails and injectors if that makes a difference.
thanks.

[redhardsupra]

check the voltage at the pump, they usually draw more current and the stock wireing makes it freak out.

[mr.prick]

check the voltage at the pump, they usually draw more current and the stock wireing makes it freak out.

what do you mean?
i just would like to know what values i should be seeing/using.
like i said i have 70psi more or less.
should it not fluctuate at all?
at rpm it moves , probably because of the injectors are opening more often.....?
basically does 68-70psi sound like it is range for this pump.
i would like to get the proper sensor for logging but it is a little pricey and i don`t want to spend the money
if it`s going to tell me i have 70psi.

[ntae]

Yes all the walbro in tank pumps i have fitted have increased the pressure over the stock holden reg set point i see around 62 / 65 psi

[JezzaB]

So the walboro is installed in the swirlpot with the stock 58psi reg and reads higher? Im curious because I have one too. Think I might have to put a pressure gauge on it.

Jez

[ntae]

i would like to get the proper sensor for logging but it is a little pricey and i don`t want to spend the money
if it`s going to tell me i have 70psi.

where is the world do you live mr.prick there are some good priced fuel pressure senders

[mr.prick]

where is the world do you live mr.prick there are some good priced fuel pressure senders

part #s would be nice.

[mr.prick]

So the walboro is installed in the swirlpot with the stock 58psi reg and reads higher? Im curious because I have one too. Think I might have to put a pressure gauge on it.

Jez

this is one reason i am asking for others with the walbro and know
they`re fuel pressure to say whether or not if it sounds accurate,
if not i will have to buy the Autometer fuel pressure sending unit
(pn 2246) and wire harness (pn 5223)
($101.99) ($37.99)
i am a cheapskate i know but if someone could tell me if my psi
is or isn`t abnormal, i will go from there.
i though it was 60-62psi but i recently noticed it is in the 70psi range.
though my gauge might be off.

[Doc]

That does seem high to me. Are you using the factory wiring or a beefed up setup like the racetronix? The tutorial is really good. From my observations/ logs with the autometer setup I have observed ~62-64 @ idle and ~58 @ WOT. It does vary with load, which makes sense. Probably worth your while/wages to get more accurate readings you can actually log. Look at it this way, you can fire the small Laotian boy you have under the hood watching the gage while you drive.

[mr.prick]

That does seem high to me. Are you using the factory wiring or a beefed up setup like the racetronix? The tutorial is really good. From my observations/ logs with the autometer setup I have observed ~62-64 @ idle and ~58 @ WOT. It does vary with load, which makes sense. Probably worth your while/wages to get more accurate readings you can actually log. Look at it this way, you can fire the small Laotian boy you have under the hood watching the gage while you drive.

LOL
i have just the pump.
now i`m wondering whats is going on with my fuel pump.
guess i`ll have to spend more money