Famine67

iTrader: (3)

Here's my setup.

Cammed LS3 stock internals - 450whp all motor
LS3 Wet Plate System 150 shot

Walbro GSS340
Corvette Returnless Filter/Regulator
5/16 Fuel Hardline
AN6 lines throughout
L9H 54lb injectors

I currently plan on changing to a return style with a new regulator between the fuel rails. Is there anything else I should change on the fuel system while I'm at it?

Pump flow chart here:
http://www.tanksinc.com/pdf/4_series_fuel_pump_flow_chart.pdf

JoeNova

The Walbro GSS340 is a 255 LPH pump. You'll go lean with a 150 shot.
The regulator is usually fine at 600whp.

anthraxmm

I would get a hot wire kit for the fuel pump, that should give you enough pump.

JoeNova

Don't hotwire your 255 pump and shoot for 600whp. That's insanely foolish.

Upgrade to a 340 LPH pump.

anthraxmm

It's right there on the edge, but to say insanely foolish is a bit much.

If he really want to be safe he should get a standalone fuel tank.....

JoeNova

Ragged edge. If its an M6, 600whp is on the edge. If its an auto trans, he has ran out of fuel and probably caused major damage. You can get a 340 lph pump for $100, and a 450 lph for $130. Why screw around?

Stand-alone tank? LOL GTFO. Single Walbro 450 in the stock tank is good for 1000+ flywheel.

anthraxmm

The standalone I would use more for running a better fuel than what the cars tank has. But I'm sure you knew that.