Planning Fuel System

[Fuelie Fan]

EFI, especially MPI and sequential systems running at 3+ bar, isn't as senstive to vapor lock but it certainly does happen. One of our customers had serious issues in a 240Z he converted and it ended being a heat issue, so yes do avoid heat sources as much as possible. Good point.

[DeltaT]

Or you could do it the way I ran mine:

A -10 from the fuel cell to the pump

-10 from the pump up the pass. frame rail to a Y-block

Two -8 lines: One to the front of each rail. No crossover.

Two -8 lines: One each to a port on the regulator

One -8 Return line back to fuel cell

This pretty much eliminates the 'fuel shock' problem, because each line has their own feed.

Jim

[ProStreet R/T]

Or you could do it the way I ran mine:

A -10 from the fuel cell to the pump

-10 from the pump up the pass. frame rail to a Y-block

Two -8 lines: One to the front of each rail. No crossover.

Two -8 lines: One each to a port on the regulator

One -8 Return line back to fuel cell

This pretty much eliminates the 'fuel shock' problem, because each line has their own feed.

Jim

And that ladies and gentlemen, would be the RIGHT way to plumb a fuel system. Dual feed in/out with the regulator on the return side.