Fuel system talk.

[jdaniels]

@KrazyKid

I am putting the fuel system together on the Jetta project. I have a small cell with bottom dual -8 outs. single -8 return and a -8 for vent. 2 Walbro 255 in-lines, 2 85micron Earls filters and a 10micron filter.

The way I have it now is the sump exits the cell out the rear, under the car. below the cell I mounted the pumps and 85m filters. Goes cell - filter - pump - Y block - single 8AN up to engine compartment. from here I was just going to send it to the fuel rail, then return from rail to the FPR and back to the cell.

What I have been reading is asymmetrical lines for feed and return can cause some pressure hicups in the rail. Is it better to run a step down for a return post rail and FPR? or just stick with the -8 back to the cell?

You are reading into it way too much. Your fuel pressure will be fine as long as your FPR is close to the rail. Real talk.