Pierburg RS2 fuel pump specs.

[urq20v]

Does anyone know the flow rate for the Pierburg RS2 fuel pump and how it compares to the S2 and Bosch 044 pumps?
Thanks.

[treebirch]

Digging this one out as I have just received a Bosch pump that is 60mm in diameter, my understanding is that the standard one is a Pierburg item that is 43mm. Any info on this would be very helpful!

[UrS4boy]

Some Fuel Pump Flow Graphs

Digging this one out as I have just received a Bosch pump that is 60mm in diameter, my understanding is that the standard one is a Pierburg item that is 43mm. Any info on this would be very helpful!

The Bosch 005, 040 and 044 are all 60 mm diameter pumps.

Any Pierburg Audi Fuel pump I have come across has been 43 mm.

A Bosch 044 will vastly outflow a stock fitment VDO Siemens, Pierburg or Bosch 43 mm pump. (Yes Bosch makes 43 mm diameter pumps too. I am running one in my 93 UrS4).

Bosch 43 mm FP:



Siemens/VDO 43 mm FP:



Some FP graphs:





DeatchWerks DW300:

[treebirch]

That's great info, many thanks, if I choose to use the Bosch 60mm pump what other parts will I have to acquire to enable the installation and is this a straight forward fit? Or would I be better to use a standard item on my set up which is RS2 with PRJ stage one map and TFSI coils plus Miltek cat back.