WTD 3.8 bar / RS2 FPR

[merlin's S4]

Looking for a 3.8 bar fuel pressure regulator if anyone has one? Thanks!

[andyg plym]

tristan why? do i need one as well with my setup?

[Rocco]

yeah.. 4Bar FPR would be nice if you have a ABY/AAN engine

[A80Avant]

I have one. But I need a 4bar as a spare

If not available to trade make me an offer and ill use the ££ to get a new for for me

[simon20vq]

Can't you just use one off a 7a engine

[Rusty]

No, it's a totally different design - AAN, ADU & ABY are integral to the fuel rail, 7A & 3B are separate.

[simon20vq]

OK I recall see one now on the end of the fuel rail. My bad!

[UrS4boy]

Fuel Pressure Regulator info and PNs

No, it's a totally different design - AAN, ADU & ABY are integral to the fuel rail, 7A & 3B are separate.

I thought the RS2 3.8Bar Fuel Pressure regulator was a bolt on like the 3B and 7A.

http://forums.quattroworld.com/s4s6/msgs/21108.phtml

[twoqu]

I thought the RS2 3.8Bar Fuel Pressure regulator was a bolt on like the 3B and 7A.

http://forums.quattroworld.com/s4s6/msgs/21108.phtml

Thats why you shouldn't rely on parts illustrations!
The RS2 uses the same fuel rail as the ABY so has an integral fpr like the ABY. Why its 3.8bar on the RS2 only Porsche knows although it looks like they use their parts bin for it!

[UrS4boy]

Thats why you shouldn't rely on parts illustrations!
The RS2 uses the same fuel rail as the ABY so has an integral fpr like the ABY. Why its 3.8bar on the RS2 only Porsche knows although it looks like they use their parts bin for it!

Okay. Not like Audi didn't have an ABY diagram to use for the RS2.

Made me check my resources. Found a (bad) photo of an RS2 ADU from above. Shows the FPR on the fuel rail like and AAN or ABY. My bad.

I will correct my FPR post.

[UrS4boy]

Okay. Not like Audi didn't have an ABY diagram to use for the RS2.Made me check my resources. Found a (bad) photo of an RS2 ADU from above. Shows the FPR on the fuel rail like and AAN or ABY. My bad. I will correct my FPR post.

Until I can get access to the only RS2 in British Columbia (one of 5 or 6 in Canada), I corrected my FPR post with a couple of photos that I had squirrelled away.

http://forums.quattroworld.com/s4s6/msgs/21108.phtml

From the RS2 brochure (you can just see the FPR on the left end of the fuel rail)



And this one (actually an RS2'd S2 ABY but it shows better):

[Rusty]

I have an ADU 3.8 Bar FPR in my ABY fuel rail

[twoqu]

I have an ADU 3.8 Bar FPR in my ABY fuel rail

Can you confirm the actual Bosch P/N. That might help the OP locate one.

[AndyP]

This is the one, right?

http://www.bosch-motorsport.de/en-US/literature/en-US/Fuel_Pressure_Regulator_Mini_38_Datasheet_51_en_2777190155.pdf

[UrS4boy]

This is the one, right?

Be careful of that Bosch number. Found this on a search:

http://www.ebay.co.uk/itm/BOSCH-cont...p2047675.l2557

Photo is hopefully wrong.