The Chase Bays AN Fuel Line Kit for LS1, LS2, LS3, LS6 V8 swapped Nissan 240sx / Silvia is designed for enthusiasts who want to upgrade and adapt their fuel lines with high end components plus stealthy design. This kit integrates a 3 port Fuel Pressure Regulator (FPR) seamlessly and has the option to adapt an aftermarket fuel rail. It is assembled with all black aluminum A.N. fittings and -6AN stainless steel reinforced hose with high heat nylon sheathing. We use the best components in the industry and we pressure test every line we assemble. We guarantee a leak free start up if this product is installed correctly.
This deletes a portion of the engine bay feed and return hard lines and replaces the filter. In factory form its ugly, bulky, and routed inefficiently. You will cut the feed and return hard lines back about 12" inches and route toward the trans, along the firewall, then to the shock tower where the FPR will be mounted. In stock form it would be very close to the header so we must go the longer scenic route. See photo below for visual reference. This creates a nice tidy look that will allow for easy install / uninstall and can be a safe distance from its neighbor, the exhaust.
Since vehicles equipped with this V8 from the factory regulate the fuel pressure at the tank or at a problematic and bulky filter, we must integrate an external FPR. This kit kit includes all the lines to do so, the perfect fit bank 2 to bank 1 hose, and the 3 adapters needed for the FPR to attach the lines to. This is designed to work with aftermarket fuel rails and 3 port FPR only (not the 2 port).
This is a "dead head" setup which means the FPR is pre-fuel rail. Many kits have the FPR after the fuel rail which makes for 1 extra fuel line and more engine bay clutter. Chase Bays specializes in fixing clutter. The dead head setup is what the 3 port FPR’s were designed for and is common practice in the motorsport world.
The FPR mounts on the LHD passenger side shock tower with our FPR Bracket to an existing bolt hole (see photos). The fuel feed goes from the hard line to the filter thats mounted directly on the FPR with a 90º coupler. Then the opposing side of the feed goes from the FPR to the rail directly. The return is simple enough routing from the FPR bottom to the hard line.