255LPH Fuel Pump Questions performance concerns. 240sx KA24E

[RamonetB]

I'm thinking about going to a Walbro 255LPH fuel pump.

However, I've heard rumors of some things to be aware of.

1) Will lower the cars MPG.

This doesn't make sense to me as the Fuel Pressure Regulator is suppose to .. ahem.. regulate the pressure. You're cycling the same fuel quicker, but not sure why it would cause a loss in economy.

2) Car will run richer.

Related to 1, I suppose.

3) Can't let the gas tank fall below 1/4 of a tank otherwise you start starving the fuel pump.

Can anyone here comment on these things, specifically 3?

Thanks!

[driftingmy240sx]

lies, all lies. my 255 from walbro never caused a excessive rich condition nor did i see any change in gas mileage. and i have run the car below 1/4 tank with no problems.