I am in the process of putting my fuel system together and am looking for some suggestions on the best way to go about it.

I have a GZ mani with run of the mill bar stock top feed rails, 2 x 1100cc primaries, 4 x 1680cc secondaries, and the CJ Motorsports twin 044 hanger. I am looking for around +/- 600whp.

Should I run individual -06 lines to each rail, "Y" the return, should I "Y" the feeds to a single -08 and run the rails in parallel with a -06 return? I am concerned about the 4 secondary injectors getting the same flow/volume of fuel as the 2 primaries with the first option. I think the best way will be to go with the 2nd option I mentioned.

If there is something that I am not thinking about please let me know, also I am away from my car and are trying to purchase all my fittings so if anyone had any pics of their fuel system setup (routing of the lines from rail to rail to regulator) so that I can get an idea of what I need to buy that would be great! I searched for some pics but couldn't find them, if there is a place to look please by all means point me in the right direction.

Thanks

 

-8 Y from the 2 pumps into 1x -8 hardline to the rail.

you can run the rails in, parallel or series depending on your FPR

if you have the ability to allow 2x-6 or -8 lines to the top of your FPR.

-8 Y fitting to split the feed line into each raill. each return from the rail has its own port on the FPR, fpr has 1x-6 return to tank.

OR

in series, -8 line to feed 1 rail, the exit of that rail feeds the next and the last return goes to the FPR. -6 return to the tank

personally i prefer option one. however there isnt any real difference. the fuel is under pressure the FPR adjusts itself to keep your pressures where it needs to be. as long as the pumps are up to it your rail pressure will remain the same regardless.

returnless setups can work well as they dont heat up the fuel be recirculating it. you don't need constant flow you need constant pressure.

hope that all makes sense

 

Thanks, forgot that most FPR's will accept 2 lines in, will keep this in mind for sure. Anyone have any pics of their rail setups, I want to get an idea of what angle fittings to order. I have seen some before on the forum, now that I need them I cant find them.

Thanks