Fuel pressure regulators

[chassis 33]

Can anyone make and reccommendations as to fuel pressire regualtors, specifically for a 51psi/3.5bar injected Rover V8?

I'm a bit wary of the FSE offering becasue i know of a few that failed last year and dont want the same to happen to me.

A standard RV8 35psi one is no good obviously.

Anythougts on the Weber/Alpha billet offering?

Regards
Iain (and a couple of beers, sorry).

[GreenV8S]

OMEX supply fuel pressure regulators, perhaps they have something suitable. I think you're right to be wary about the FSE valves.

[350matt]

have a rummage down the scrappy's, most modern cars are running Bosch regulators in a variety of pressures which are usually stamped on the body anything from 2.5 to 7 bar is easily available

Matt

[number 7]

My modded 400 has been running a Weber adjustable regulator for a few years without any problems. It's set at 47 psi at the moment, although I've never needed to adjust it.

7.

[mongoose]

chassis 33 said:

A standard RV8 35psi one is no good obviously.

Whilst it may not be quite the answer your looking for,mine has been crimped to give the higher pressure required for fuelling the mods i have with my still std. injectors.Its pretty common practice apparently,and mines been like this for a year now with no problems whatsoever.

[chassis 33]

I'm a bit nervous about crimping pipes to that the diaphram sees and extra 50% of pressure. IIRC when you get above about 40psi (I think) on the standard injectors there is too much pressure for the injectors to open, so I would be suprised if the diaphram is seeing anywhere 51psi even with the crimp.

Regards
Iain

[mongoose]

chassis 33 said:

I'm a bit nervous about crimping pipes to that the diaphram sees and extra 50% of pressure. IIRC when you get above about 40psi (I think) on the standard injectors there is too much pressure for the injectors to open, so I would be suprised if the diaphram is seeing anywhere 51psi even with the crimp. Regards Iain

I think MA said something like 3.3 bar from memory,is where you start to get issues with unopening injectors on these cars.What mods have you got,and just how much fuel do you need?Mine runs at 3.0 bar from memory.I'm a little confused by the statement above.Your not crimping any pipes,your crimping(squashing a little)the regulator itself.Cheers,Mike


edited due to pathetic spelling!

>> Edited by mongoose on Monday 13th February 19:47

[chassis 33]

Ah ok, just confuzcultated by the description. Don't worry, I've seen some people run with a set of mole grips crimping the return to get the required rate and got rather worried!

It's to run the Bosch injectors that were specced on the last of the Disco II's with the Bosch/Thor setup and also (I believe) some of the GEMS setups, they run at 51psi with the regulator built into the fuel pump, and the fuel rail is a dead end system; hence to run that manifold base I need to make some alterations.

Regards
Iain

[stevieturbo]

Out of interest. What method of fuel control are you using ??

Just because one setup uses 51psi, doesnt mean every one does. I assume you must be using the entire fuel setup, including ecu etc ?

If you have some form of fuel control ( ie programmable ecu ), you need to run whatever fuel pressure works. Nothing specific.

[chassis 33]

Good point well made...

I guess one way to do things would be to get an ajustable one with a guage eg some of the FSE varients, then once everythnig is set up get one thats pervieved to be higher quality but fiexed at whatever rate you I end up with.

Regards
Iain