looking at Evo's. Few Questions.

[Kracka]

Originally Posted by timschot

If you are staying stock turbo and run out of fuel, it's easy to address anyway. It takes 30 minutes to swap and hardwire a better fuel pump and injectors are right in the front of the engine bay if you're going e85.

No reason to hardwire an aftermarket fuel pump until that pump, and any larger single pump, can't support your requirements. The 9/12v switch is a nice feature to keep the pump from overrunning the stock FPR at idle/cruise, and also helps keep the pump quieter and cooler, which should ultimately lead to a longer lifespan.

[timschot]

Originally Posted by Kracka

No reason to hardwire an aftermarket fuel pump until that pump, and any larger single pump, can't support your requirements. The 9/12v switch is a nice feature to keep the pump from overrunning the stock FPR at idle/cruise, and also helps keep the pump quieter and cooler, which should ultimately lead to a longer lifespan.

Good points. I am on a hardwired dw300 running e85 though and have not had idle or cruise issues, but I've only done 4-5 tanks so far and have no idea what my fuel pressure is at. I have heard of people pushing return lines off fittings, but mostly on pump. The car is getting another round of mods shortly though, so I might need to revisit.