FSE Fuel Pressure Regulators

J1 · Post by J1 » Sat Aug 30, 2003 3:16 am

Does anyone know the difference between the FSE Fuel Pressure Regulator and the FSE Power Boost Valve? RPW recommend the latter but I don't know what the difference is.

Anyone got the part number for the one appropriate for my GPX FTO? I'm thinking of just buying it from Autobarn cos it's cheaper than getting it sent over from WA. Problem is I don't think they know what they're talking about so I want to be able to give them the exact part number so they can just order it and minimise hassles

elmo · Post by **elmo** » Sat Aug 30, 2003 10:52 am

The thingy they fit with the extractors is a rising rate fuel pressure regulator. I dunno if this is what you mean, is it for the same purpose?
What it does is increase the fuel flow/pressure to the injectors as you rev the car. It has a little glass gauge on it that tells you the fuel pressure at idle and you can watch it go up as you rev it. There is also a screw on top that you can adjust the idle pressure which i think in turn adjusts the reving pressure.
So thats what i got, but i cant tell you which one it is.

MattG · Post by **MattG** » Sat Aug 30, 2003 5:48 pm

They are the same thing. The FSE power boost valve IS a rising rate fuel pressure regulator.

Another rising rate fuel pressure regulator brand I can think of is Malpassi.

M@

J1 · Post by J1 » Sat Aug 30, 2003 8:29 pm

I thought they were the same thing, but one costs about $90 more than the other. Apparently the cheaper one is not a "rising rate" FPR, just a standard one. One question, if it's not a rising rate FPR, what's the point of it???

Apparently the FSE PBV kit contains a Malpassi adjustable regulator, according to Online Performance Autos.

Anyone know who can install one of these in Melbourne?

andy · Post by **andy** » Sat Aug 30, 2003 10:15 pm

Do you have a good reason for having one fitted? I have seen loads of reviews in car magazines where they do before and after power runs on standard and lightly modified cars (exhaust + filter) and they never give the results claimed by the manufacturer. They always conclude that they're a waste of money. I haven't seen anything specific for FTO though, so who knows?

Let us know how you get on.

elmo · Post by **elmo** » Sat Sep 13, 2003 1:06 pm

guess the fuel pressure regulator would be adjustable and you would set it at the maximum pressure the car requires.
The beauty of the rising one is that the pressure goes up and down as it is required. This would probably mean less wear and tear on the fuel pump etc and maybe even using less fuel at idle??

fto12345 · Post by **fto12345** » Sat Sep 13, 2003 1:14 pm

Hello,

Just a dumb question...

What does the fuel pressure regulator do?

Is it for performance related?

Can it boost performace of your car?

Just nor sure why you need it..

Thanks.

kaveman · Post by **kaveman** » Sat Sep 13, 2003 7:18 pm

the car has a standard fpr but it can not be adjusted

why would you fix a aftermarket fpr

a fpr keeps the presure of the fuel in the rails

so what does this mean
you cars fuel pump is alway pumping fuel around
when your car is sitting there idling the presure stays level

as soon as you put you foot down it drains fuel and sents it to the injectors
therefore there is lest presure to push the fuel into the injectors

an aftermarket fpr you can set the presure

i have mine set about 4psi higher then standard

i think it about 32psi

fpr are normal added to turbo/supercharged as they need extra fuel as you are pushing more air throught

hope this make sense

robert

MADFTO · Post by **MADFTO** » Sun Sep 14, 2003 1:18 pm

Errrr I though standard psi was around 38.

I'm set to 40psi, need to tune low end, backfiring every now and again, way too rich =)

I'll check the calcs now =)

kaveman · Post by **kaveman** » Sun Sep 14, 2003 5:49 pm

you might be right

std might be 38 and i have mine on 42psi

i am getting a gauge fitted soon

elmo · Post by **elmo** » Mon Sep 15, 2003 10:48 am

erm... think mine idles at about 34 then goes up to like 50????
thought standard was 28??? Will ask RPW...
Yoo hooo that reminds me they gonna spend the whole week on my car and should be done when i get back from holidays. Be gald to get my wheels back.

D-TRAIN · Post by **D-TRAIN** » Mon Sep 15, 2003 8:54 pm

According to the service manual for the GPX, the fuel pressure at idle is 265kPa or approximately 38.4 psi.

Hope that helps.

elmo · Post by **elmo** » Tue Sep 16, 2003 10:41 am

hmmm... maybe they set it wrong when it was installed, but i'm pretty sure they told me not to go above 38-40? Maybe that is why i cant notice a difference no matter how far i turned it down, cause I am running a less than stock fuel pressure.
Will test it next week.

FTO AUSTRALIA

FSE Fuel Pressure Regulators

FSE Fuel Pressure Regulators

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fuel pressure

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