Sabas

iTrader: (22)

I have just received a second hand fuel pressure regulator for a 1997/1998

turbo, it doesn't have a pressure gauge, so just wondering how you can

tell what the pressure is set to, also does a mapper need to adjust it or

just where you get it fitted?

It's not fitted yet but going on with a few other bits soon.


Many thanks

joz8968

iTrader: (13)

Adj. FPRs normally have a 1/8" NPT port on the front, so as to be able to screw in a gauge for setting the pressure (get a 100psi/7bar glycerine filled one).

Sabas

iTrader: (22)

okay, I will have a look thanks.

Will a garage be able to fit it and ajust it or do you need a gauge?

joz8968

iTrader: (13)

You'd need to get the gauge to fit into that port (using PTFE tape to make petroltight). You need to get your mapper to set the pressure/map it (after fitting it).

If you don't intend to get it mapped (with any other mods), you're wasting your time/money, as there'd be no need to swap the OEM FPR for it, otherwise... Unless your OEM one has given up the ghost of course.

If you must fit it, then std pressure is 3bar with vac pipe removed. When the vac pipe is reconnected then it should drop and stay at around 2.7bar when idling...

Sabas

iTrader: (22)

Thanks, I have bought it with a view to get it fitted when I have the money to fit a few other bits I have got together, and I will definately be getting it mapped.

I will have a look for a gauge, any recommendations where to get one from?

joz8968

iTrader: (13)

I got mine off eBay, and API had no issue with setting up my Fuelab FPR with it, prior to mapping. Indeed, the type of gauge I bought was recommended by Dave .... so I got it lol.

I'll try to dig out the link to the gauge that I bought - bear with me....

Sabas

iTrader: (22)

Much appreciated

joz8968

iTrader: (13)

This is the vendor/item that I bought:-

Fuel Pressure Glycerin Gauge for FSE Power Boost Valve

Sabas

iTrader: (22)

thank you for all your help

joz8968

iTrader: (13)

Don't buy it UNTIL you know if your FPR does have that 1/8" NPT port though!

Otherwise it won't fit.

Jamz_

iTrader: (12)

Bookmarked this as I'll be adding mine too before Duncan remaps it, but will need the car running to get it on and off trailer and into garage so needed to know the standard pressure.

Sabas

iTrader: (22)

Okay, will find out before.

Thanks,

if it's not for any reason, does that mean I can't fit it?

alcazar

iTrader: (2)

2.7 bar sounds low, mine sits at 3.3 bar ABOVE boost pressure according to my Defis.

P600wrx

iTrader: (1)

i may be wrong but i only thought that you needed an fpr when u fitted bigger injecters?

harvey

iTrader: (48)

Your car already has an FPR.
An aftermarket FPR is only required if you want to extend the range of your injectors beyond their design limit.
An aftermarket FPR without a pressure guage is not much use. I have a new guage here £20 plus postage subject to what make your FPR is.
New Fuelab FPR is £140 plus postage (mini).

joz8968

iTrader: (13)

I got the Fuelab "Mini" (in black).

Cute little thing, it is lol

Sabas

iTrader: (22)

Harvey, the guy I got it from said scooby clinic had fitted it originally, howcan I tell if it is standard or after Market?

joz8968

iTrader: (13)

Std OEM one looks like this:-

Pressure Fuel Regulator SUBARU IMPREZA GC8



It can't be mistaken for any aftermarket type.

Sabas

iTrader: (22)

Cool, will compare it to what I have, thanks

prodriverules

iTrader: (52)

2.7 is the standard pressure alcazar,your's is the same as mine mate at 3.3 bar which is because yours is not standard lol

harvey

iTrader: (48)

If it is adjustable it is not O/E.

Sabas

iTrader: (22)

The adjustable bit being the screw?

Sabas

iTrader: (22)

whereabouts is it on the engine, the one I have bought doesn't look like

the one in the picture. I went to have a look at mine, but didn't know

where to look. It's a phase 1.5 engine.

Thanks

Mrchips

iTrader: (7)

Left hand side near one of the injectors.

200sex

iTrader: (2)

if you dont have the gauge hole in the fpr then you can get inline ones to go after the fpr i would always recommend to get a gel filled gauge

Jamz_

iTrader: (12)

Take a picture of your engine bay... if you have one fitted it will be easily identifiable

Mrchips

iTrader: (7)

I have a gauge if you want it. brand new, as thought the fuel lab one is bought didnt come with one so bought it at the same time. £5 i am guessing postage would be about £2.

Sabas

iTrader: (22)

I will put a picture up after work tomorrow

harvey

iTrader: (48)

Location of the OE FPR is on the end of the fuel rail closest to the bulk head on the driver's side and it will have a black rubber pressure line running to it from the inlet manifold.

If you are fitting an adjustable fuel pressure regulator, which is adjusted by screwing the threaded bit in and out using an Allan key, then you will need a fuel pressure rail adaptor.
I think you need somebodies help here local to you or when you next visit your favourite supplier.

Fuel pressure guage posted £7. Yes please, can I have second dibs if your man does not take it.

Paul&bon

iTrader: (4)

Here's a pic of my fuel lab. No gauge though so I'll have to sort one out.

Can I just screw the gauge in?