Those last few pics make going return look easy. I really like that Y-Block setup for the fpr. Shweet.

 

It would be easy to convert this to a return system. Right now I am staying returnless. I am sure I will need to adapt this into an adjustable return system in the near future.

 

slick work there . . . !

 

Thanks! That is a fuel block I found that had the 1/8" NPT fitting that I used for the fuel pressure sending unit.

 

did you make that hard line ?

 

Yes, I made it from the stock 3/8" hard line.

I plan to upgrade later to one of the designs I have been thinking about below:

Return System - Use a boost referenced regulator (return system) so I can adjust the pressure to compensate for the boost pressure at the head of the injectors. Designing a system so that I can make a custom y-block with -8 inlet and -6 return feeding dual -6 to the fuel rails. It will be an easy conversion from where it is now.

Returnless - Integrate a second fuel bucket that will kick on at a certain boost level with a switch. This would retain the returnless and use 2 pumps to feed the rails. The y-block would then become an x-block so the 2 pumps and 2 fuel rail lines would join at this point. This would almost double the volume output when both pumps are running.

 

looking good joe

 

boost referanced hobbs switch,nice!

 

I need to flow a certain amount of fuel to support a certain amount of HP. I want to be able to support 1200-1500 FI HP. I don't want the restriction to be the fuel system. The stock system with MagnaVolt will support about 800 FI HP at the Crank before you start to see a pressure drop. This current change should push that out enough to crank the boost a little higher and help to support the Nitrous I will be trying.

I can not fill a 55 gallon drum with a single 3/8" line very fast but I can fill it twice as fast with (2) 3/8" lines.

I have also built several fuel systems for Street Rods with the aftermarket in-line pumps. I want the dependability and longevity that the Walbro 255HP pumps provide.

This is why I am seriously considering the system below, it will feed twice the amount of fuel to the engine and support even more power.

Returnless Dual System - Integrate a second fuel bucket that will kick on at a certain boost level with a switch. This would retain the returnless and use 2 pumps to feed the rails. The y-block would then become an x-block so the 2 pumps and 2 fuel rail lines would join at this point. This would almost double the volume output when both pumps are running.

 

I finished building the -6 stainless steel braided lines and then covered them in heat shrink to prevent scuffing.