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Fuel Pump Question
Posted: Thu Aug 11, 2005 11:30 pm
by simbey1982
Hello all,
I know i will be ridiculed for asking about an impreza here, but i picked up a fuel pump assembly from a 93 touring wagon, im starting to think my impreza pump is getting lazy or clogged...are the tanks the same enough to do a stait swap or just the pump?
and is the turbo legacy pump have a higher output than say an N/A??
Thanks
Cory
Posted: Fri Aug 12, 2005 12:15 am
by Matt Monson
Yes,
The turbo pump has more output. No, it is not a direct drop in. You need to make a jumper harness to make the connectors work. And lastly, unless you have a ton of mods that include cams, you are just going to make your car run pig rich, get horrible gas mileage, and foul plugs way faster than stock. More gas does NOT automatically equal more horsepower...
Posted: Fri Aug 12, 2005 1:53 am
by napphappy
doesent your Fuel Pressure Regulator, regulate how much fuel your engine gets?
Posted: Fri Aug 12, 2005 3:16 am
by Legacy777
It regulates pressure. If the stock regulator can not return enough volume back to the tank, pressure will rise and you'll run rich.
Posted: Fri Aug 12, 2005 3:33 pm
by Matt Monson
exactly...
Posted: Wed Aug 17, 2005 6:17 am
by simbey1982
yeah...not trying to get HP just trying to replace a lazy fuel pump.....thanks for the info
Posted: Wed Aug 17, 2005 4:04 pm
by IronMonkeyL255
Hmm.... I may need a new FPR.
I dropped in a Walbro unit, and seem to be running rich since then. I know I get far worse fuel milage, and I thought it was my O2 sensor.
What pressure do our fuel systems run at? I know the newer Subarus run at a higher pressure, but I just can't remember the pressure.
Posted: Wed Aug 17, 2005 5:16 pm
by Legacy777
You can get the fuel pressure info in the factory manual I posted in the stuff you need to know forum.
Posted: Wed Aug 17, 2005 9:07 pm
by IronMonkeyL255
I see....
It looks like 36.3 PSI.