ISPKI
Welding/metallurgical engineer/Metalsmith
Seeing how this won't die....
Let's visit the over pressure situation...
We know the calibration is set at 5 psi...
Wes posted placing a bypass regulator after the filter head and placing the bypass back into the feed line from the tank just before the filter head.
So let's talk about the pressure and flow characteristics of this versus dumping it to the return line.
? Does the bypass in the feed line cause the regulator to change properties?
Aka does it kinda defeat the purpose?
Adding incoming psi on the regulator bypass side?
Does dumping to the return backfeed the IP?
Let's chew on it...
@Shaggy
I would think that the ideal way to do it would be to have a bypass regulator after the filter, possibly connected directly to the filter head. The bypass line would feed to the return line back to the tank.
What is the benefit of feeding the return back into the feed line to the lift pump? Less circulation thru the tank? Is it an issue of capacity on the return line not being able to handle the return from the bypass at the same time as the return from the injectors? I suppose, having the bypass return to the lift pump feed keeps the extra tube on the pass side and reduces the amount of extra tubing.