I need some information on converting my 99 returnless fuel system to a single FPR setup. From my reading the 99 has a vac-less FPR in the tank, another FPR in the engine bay before the fuel rail and a pulse dampener on the fuel rail itself. Currently I plan on ditching both of the stock regulators and replacing them with a single aeromotive in bay unit, running a single line to a M-tuned fuel rail with the stock pulse dampener. The rest of the setup will be a walbro 255 and FIC 775cc injectors and I will be shooting for around 300whp.

- For those who have going with aftermarket FPRs did you have any issues with ditching the stock regulators?

 

Just as an FYI, the stock NB fuel system has one regulator and two pulsation dampers.

The regulator is back at the tank, with the return line. The device in the engine bay that you are identifying as a second FPR is the first pulsation damper.


That said, what is it, specifically, that you wish to accomplish?

 

You're going to need a return line for starters.

 

Or just install the injectors, fuel pump, and fuel rail, then leave the rest alone. I don't see any need to rebuild the entire fuel system for 300whp. I ran my '99 like that for years without any issues.