Fixing the GD WRX Fuel System with Radium Engineering and DeatschWerks

Then the hose to the second pump is attached to the barb.

The pump clamps are removed so our DeatschWerks pumps can be installed.

The supplied filter screens are attached to the DeatschWerks 300 pumps.

The filter screens are folded as so.

The pumps are attached to their respective fuel lines and placed in the clamps.  Then the sump assembly is slid into place.


  1. While it was not explicitly stated in your article, ensure you are using correct heat shrink for anything submersible. Stuff like Raychem DR25 is not ethanol/methanol safe.

  2. I like the idea and intension of the catch tank part, find it a bit small comparing to the double 340l/h pumps. On this size ist empty in les than 3 sec acceleration.
    Have you measured the restriction of the 7mm fuel lines with the two pumps tunning at idle? Normally with one pump at idle you increase it by 0.6-0.8bar at the pump compared to the fuel rail.
    Also the oem wiring was made for 6-8Amp pumps, these with the increased pressure are sucking on boost about double making 2volt drop in voltadge so loosing about 30% flow and heating the wire.

Leave a Reply

Your email address will not be published. Required fields are marked *