Quote:
Originally Posted by ML
check out Racetronix https://www.racetronix.biz/c/fuel-pr...injection/c522 Thats where I got all my fuel stuff except for the radium surge tank. Not sure why you couldn't just run a line form the stock tank to the FPR, then to the rail on one end, then put a -6 on the other end of the rail and run it back to the tank to dump into the bottom? Not sure about their fuel regulator bypass? maybe its something to trick the stock electrical system but with a Haltech you shouldn't need anything like that. |
So right now there are OEM fuel lines running from the tank to a Y with a single line running to the fuel rail on the rear side of the fuel rail with an inline fuel pressure sensor and fuel pressure gauge. On the other side of the rail is a fuel pulse damper. I'm trying to figure out how I would run a return system.
One way would be to run a line from the center of the rail back to the tank, but I don't know where it would return to the tank. Do I just get a bulkhead fitting, drill a hole in the tank and run the fuel return to the top of the tank? Does it matter if the FPR is on the return or feed side of the line?
The other way to do it is I have a Y from the feed in the engine bay, and I run a line to either side of the fuel rail, which means I would need an adapter to run the damper and the feed line into the front side of the rail. Then I could run the return off the middle. This would feed both sides of the rail as evenly as possible with fuel, so there wouldn't be pressure drop along the length of the rail, if that is even possible. It may not be necessary
The other way to do it is to have the feed from the center spreading out in the rail and a return at one or both ends. Again, I don't think any of this is necessary, and I don't think I will see fuel pressure drop at my power levels from injector pull. Most of the fuel pressure drop is from having a returnless system without a reference fuel pressure regulator.
If I have the space for the center port then I'll use that for the return, and I guess I'll just a run a line back to the tank with a bulk head fitting and a hole drilled into the tank. I'll put the new reference fuel pressure regulator inline with the feed stuff. The question is what do I do about bypassing the in tank fuel pressure regulator like how FBM did in their kit? Without bypassing the fuel pressure regulator, it will limit my fuel pressure on my feed, so it needs to be removed, or it needs to exist in some wide open state.
K-Tuned makes a center gauge mount and return adapter for their rail, but it only works with their rail.
https://k-tuned.3dcartstores.com/Cen...rts_p_828.html