8Tech
03-04-2012, 07:16 AM
Here is a small procedure on how to install aftermarket Fuel Pressure Regulators on the V12. Please note that in my pics, it is shown as a single regulator whereas it is easier to install 2 as per the original set-up.
Firstly, you will need to remove the fuel rails and remove the OEM regulators. You can then cut open the end of the rail, remove the mounting for the regulator and then weld a blank over it.
http://i283.photobucket.com/albums/kk287/big8bmw/Railoutlets.jpg
This will then give you a sealed fuel rail with the inlet at the back and the outlet pointing down at the front.
http://i283.photobucket.com/albums/kk287/big8bmw/rearfuellines.jpg
Now you need to run 2 new hoses from the underside front of the fuel rail connections, and this I did through the "V" of the engine, over the water pipe in braided hoses and out of the back. You can then attach these 2 hoses to the inlets of the 2 new remotely mounted FPR's inlets.
http://i283.photobucket.com/albums/kk287/big8bmw/fuelrailoutlets.jpg
http://i283.photobucket.com/albums/kk287/big8bmw/IMG_0060.jpg
Next you connect the returns of the FPR's through a Y connector and then into the fuel return pipe, originally connected to the outlet of the metal fuel rail bolted to the underside of the right hand inlet manifold. This may be on the other side on your left hand drive cars.
http://i283.photobucket.com/albums/kk287/big8bmw/injectors.jpg
http://i283.photobucket.com/albums/kk287/big8bmw/IMG_0146-3.jpg
You can then use a normal vacuum hose from the original positions on the throttle bodies as the control for the FPR's.
http://i283.photobucket.com/albums/kk287/big8bmw/IMG_0437-1.jpg
Cheers,
8Tech.
Firstly, you will need to remove the fuel rails and remove the OEM regulators. You can then cut open the end of the rail, remove the mounting for the regulator and then weld a blank over it.
http://i283.photobucket.com/albums/kk287/big8bmw/Railoutlets.jpg
This will then give you a sealed fuel rail with the inlet at the back and the outlet pointing down at the front.
http://i283.photobucket.com/albums/kk287/big8bmw/rearfuellines.jpg
Now you need to run 2 new hoses from the underside front of the fuel rail connections, and this I did through the "V" of the engine, over the water pipe in braided hoses and out of the back. You can then attach these 2 hoses to the inlets of the 2 new remotely mounted FPR's inlets.
http://i283.photobucket.com/albums/kk287/big8bmw/fuelrailoutlets.jpg
http://i283.photobucket.com/albums/kk287/big8bmw/IMG_0060.jpg
Next you connect the returns of the FPR's through a Y connector and then into the fuel return pipe, originally connected to the outlet of the metal fuel rail bolted to the underside of the right hand inlet manifold. This may be on the other side on your left hand drive cars.
http://i283.photobucket.com/albums/kk287/big8bmw/injectors.jpg
http://i283.photobucket.com/albums/kk287/big8bmw/IMG_0146-3.jpg
You can then use a normal vacuum hose from the original positions on the throttle bodies as the control for the FPR's.
http://i283.photobucket.com/albums/kk287/big8bmw/IMG_0437-1.jpg
Cheers,
8Tech.