rear return system questions

[streetk14]

Ok reasone regulator wont work is its not regulating properly. Your regualtor should be after the injectors, the pressure deadhead shou;ld be at the injectors. if your regulating it before the injectorsd it wont work unless its setup returnless.
Not good, you need the the regulator, right after the injectors. Dont forget you need a relay on fuel pumps, the 2 second prime before start, and an oil switch to let it run after cranking.
Oh and yes you should not have to do the repeated crank, it does mean you may have to figure out how to install a check valve (ooppss antidrainback valve).

I'd have to disagee as well. This is how the 99 Vette regulator/fuel filter is set up. The regulator/filter is mounted near the tank at the back of the car. There is then a short return line to the tank and a single feed line to the rails. Most cars being built right now are this way as well. It reduces evaporative emissions and reduces heat build-up in the fuel tank from recirculating hot fuel that was in the rails back to the tank.

All of the new BMW stuff I work with has a single feed line to the motor. The fuel is returned at either the fuel filter (that has a built in pressure regulator) located under the driver's seat area under the car, or inside the tank in the newest models.

I am also having problems on long drives when it's hot out with my traditional 2 line fuel system on my camaro. When cruising, a lot of fuel is being sent up to the rails, getting heat soaked and going back to my fuel tank. I'm running an early C5 regulator located on the fuel rail. After a long drive, I can hear the pitch of the fuel pump change and the car loses power under heavy acceleration about 4000 rpm. I found my fuel tank to be very warm and this was causing my fuel pump to cavitate. I will be re-designing my fuel system to have a single feed line with the regulator near the tank.