20VT 3B AAN ABY and ADU fuel pressure regulator info

[UrS4boy]

888

[rs200]

well done hero.. nice info..

[europeanme]

Dave, looks like you have too much time on your hands after retiring....:mischeif:

[valjo]

who makes those regulators ? bosch ?
does anyone know bosch number for rs2 PFR ?

[UrS4boy]

Dave, looks like you have too much time on your hands after retiring....:mischeif:

Actually, I did the basic one for the AAN Engine Bay Device Map some time ago but decided to update it with 3B, ADU, etc. info that I posted before but never consolidated into one post. Once I did that, I just copy/pasted/edited it from kawf to vB.

Manual version of the AAN engine bay device map:

http://forums.quattroworld.com/s4s6/msgs/22625.phtml

A more sophisticated but not as complete dynamic version (click on the labels):

http://members.shaw.ca/speedtek/UrS%20Engine%20Bay%20Device%20Map.html

[UrS4boy]

who makes those regulators ? bosch ?
does anyone know bosch number for rs2 PFR ?

Good question. Here is some Bosch FPR info:

http://apps.bosch.com.au/motorsport/downloads/regulators.pdf

[macspring]

UrS4boy,

Can I ask why the ADU uses a slightly lower fuel pressure ?

Great info / insight / diagram and printouts as per your usual high standard.

Thanks and kind regards.

[martinjs]

Can I ask why the ADU uses a slightly lower fuel pressure ?

It has bigger injectors.

[macspring]

Martinjs

Fair play, thanks.

[prj]

It has bigger injectors.

No, this is wrong.
It uses a different FPR because Porsche put it there.

They certainly did not do that because of bigger injectors. Why - I don't know either.

[newsh]

Is the 7A reg not 4.2 Bar?

Also the AAN rail I have has a U shaped clip holding the regulator in, is it supposed to have a clamp as well? In fact I think the ABY just has the clip too.

[martinjs]

No, this is wrong.

Why is it?

[UrS4boy]

Is the 7A reg not 4.2 Bar?
Also the AAN rail I have has a U shaped clip holding the regulator in, is it supposed to have a clamp as well? In fact I think the ABY just has the clip too.

I have conflicting info about the 7A as 4.0 Bar or 4.2 Bar. Point me to some documentation (and not just somebody saying it is ___). (Please)

I need info on how the ABY (and ADU) pressure regulators fit in to the fuel system. Photos of each FPR would help. (Anybody??)

[UrS4boy]

Also the AAN rail I have has a U shaped clip holding the regulator in, is it supposed to have a clamp as well? In fact I think the ABY just has the clip too.

As per the diagram (below), Item 18, for the AAN, up to car PN 080000 it was a clamp, after that it was a clip. So we are both right. As for the ABY, yes, I see now that it uses a retaining clip (PN 037133047A, which is the same clip no. as the AAN clip)

[valjo]

i have just found out that bosch number is 0280160616.
i am waiting for price from my local bosch shop :mischeif:

Good question. Here is some Bosch FPR info:

http://apps.bosch.com.au/motorsport/...regulators.pdf