2 Fuel Regulators?

[Driftnuttz]

I have this rb20det silver top head and noticed that on the fuel rail there are 2 fuel pressure regulator. Are they both fuel pressure regulators, or is one something else?

It is not letting me post any pictures, but here they are on my facebook page...lol

http://www.facebook....&type=1

http://www.facebook....&type=1

I did do a little searching but found nothing...

Edited July 6, 2011 by Driftnuttz

[Beer Baron]

I can't see the pics. don't use facebook. but I assume you are talking about the fuel dampener and the fuel reg. fuel reg is on the end of the rail and the dampener is usually on a piece of hose? you'll see only one actually has a vacuum source from memory. that one is the fuel reg.

[Driftnuttz]

They both have vac lines. One was ran to the throttle body and the other is ran to the manifold. The one that is ran to the manifold is on the from of the motor. Is it needed or can it be trashed?

[mystery_kid]

you must be pretty old to not use facebook

[OMGGTR]

you must be pretty old to not use facebook

troll

[tweety bird]

i'm 21 and i don't have a facebook.

my mum is on facebook though (that's why I'm not)

[bubba]

How about less facebook talk and more fuel rail talk ffs

[bubba]

I can't see the pics. don't use facebook. but I assume you are talking about the fuel dampener and the fuel reg. fuel reg is on the end of the rail and the dampener is usually on a piece of hose? you'll see only one actually has a vacuum source from memory. that one is the fuel reg.

They both have vac lines. One was ran to the throttle body and the other is ran to the manifold. The one that is ran to the manifold is on the from of the motor. Is it needed or can it be trashed?

Also wondering this, the original RB20DET fuel rail I had I'm pretty sure only had one reg. The one I have now has 2 and they both seem to require a vacuum source, from the same point??

[JonnoHR31]

for those that dont have facebook

Edited July 7, 2011 by JonnoHR31

[GTSBoy]

One is a pulse dampener. They didn't put them on the early ones, although the rumour is that GTS4 engines had them earlier than the GTSt engines. '93 engines definitely have them, dunno about anything earlier.

[Driftnuttz]

Thanx Jonno.

I dont know what car the rb20 head came out of.

Is it something that will/can impeed the flow of fuel to the rail? Should I remove it? I have a fuel pressure regulator that is going on inplace of the other one.

[bubba]

Is it OK for them to get their reference from the same vacuum source?