Need real answers for 98 GT fuel pump replacement

Hotrodvdog · December 31st, 2005, 05:48 PM

I've searched and asked several individuals about which fuel pump to use on my 98 GT. Some say use the 255 Walbro "works fine" and some say it'll burn up in a year. I'm thinking there are no real fuel upgrades besides replacing the entire tank and going with an "Aeromotive, BG" set up. I already have a 255 inline Walbro. This would be extremely expensive. I'm ready to give up and order the OEM pump.

mdvaldosta · December 31st, 2005, 06:08 PM

Walbro is fine, only burnout problems they have is when their used (inappropriately) on 99+ returnless system.

Roadhawg · December 31st, 2005, 06:17 PM

I have an intank 255lph Walbro in my 1995 Mustang to support my supercharger habit.

Hotrodvdog · January 1st, 2006, 10:19 AM

I forgot to mention that the burnout is due to the '98 style fuel pumps being voltage regulated. I've been told that '98 is a year all in itself.

mdvaldosta · January 1st, 2006, 10:36 AM

No it's 99+ that is regulated by variable voltage. In a return style fuel system (pre 1999 Mustangs) the fuel pressure is regulated on the fuel rail in the engine compartment. The fuel pressure regulator acts like a faucet allowing fuel to go back to the fuel tank to relieve pressure. In 1999 Ford went with a returnless system, meaning there are no lines back to the gas tank and no fuel pressure regulator per se. Instead, the ECU increases and decreases the voltage to the fuel pump to regulate fuel pressure. If the fuel pump isn't designed for this (example: Walbro is designed to operate at a constant 12v) then it can burn up.

Your 1998 has a return style system, meaning a Walboro will operate as intended in your Mustang.

pthornton · January 1st, 2006, 05:13 PM

Ford Motorsports offers a 190lph pump specifically for the 98.

mr_glass · July 13th, 2006, 12:59 PM

Wow its a small world. I was looking for a larger pump for a 98 and found your post. Do you have a part number for the ford part? I found a vortech 255 pump (8F001-265) that they said is an exact fit. We will see...... I have been working on this problem for a week now. If you have the ford number I will have it for back-up if the vortech pump does not work. Is that the pump in your saleen?? Thanks Chris

www.alliesautomotive.com

PS pick up the latest copy of Modified Mustangs. Michele's car has a 7 page spread.

The Stallion mang · May 17th, 2011, 06:11 PM

Did you guys figure out the answer to this situation? I have a 98GT and need a bigger fuel pump! Help.....

97S281 · May 17th, 2011, 08:11 PM

Holy old post Batman!!!

Seriously though, a walbro will work fine in a 98.

December 31st, 2005, 05:48 PM	#1
Hotrodvdog Newbie Join Date: Dec 2005 Posts: 6 iTrader: 0 reviews	Need real answers for 98 GT fuel pump replacement I've searched and asked several individuals about which fuel pump to use on my 98 GT. Some say use the 255 Walbro "works fine" and some say it'll burn up in a year. I'm thinking there are no real fuel upgrades besides replacing the entire tank and going with an "Aeromotive, BG" set up. I already have a 255 inline Walbro. This would be extremely expensive. I'm ready to give up and order the OEM pump.

December 31st, 2005, 06:17 PM	#3
Roadhawg Regular Join Date: Dec 2005 Location: Chesapeake, VA Posts: 431 iTrader: 0 reviews	I have an intank 255lph Walbro in my 1995 Mustang to support my supercharger habit. __________________ 2003 Mustang Mach1 1995 Thunderbird LX 4.6L; 1995 Mustang 4.2L; Eaton MPX Supercharger, 11.61 @ 118mph

January 1st, 2006, 05:13 PM	#6
pthornton Newbie Join Date: Jan 2006 Posts: 2 iTrader: 0 reviews	Ford Motorsports offers a 190lph pump specifically for the 98. __________________ 1989 Saleen Coupe # 653 ********* 1996 Saleen Convertible #14B

July 13th, 2006, 12:59 PM	#7
mr_glass Look Ma! My First Post! Join Date: Jul 2006 Posts: 1 iTrader: 0 reviews	Hey Randy Wow its a small world. I was looking for a larger pump for a 98 and found your post. Do you have a part number for the ford part? I found a vortech 255 pump (8F001-265) that they said is an exact fit. We will see...... I have been working on this problem for a week now. If you have the ford number I will have it for back-up if the vortech pump does not work. Is that the pump in your saleen?? Thanks Chris www.alliesautomotive.com PS pick up the latest copy of Modified Mustangs. Michele's car has a 7 page spread.

May 17th, 2011, 08:11 PM	#9
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	Holy old post Batman!!! Seriously though, a walbro will work fine in a 98. __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

December 31st, 2005, 06:08 PM	#2
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	Walbro is fine, only burnout problems they have is when their used (inappropriately) on 99+ returnless system.

January 1st, 2006, 10:19 AM	#4
Hotrodvdog Newbie Join Date: Dec 2005 Posts: 6 iTrader: 0 reviews	I forgot to mention that the burnout is due to the '98 style fuel pumps being voltage regulated. I've been told that '98 is a year all in itself.

January 1st, 2006, 10:36 AM	#5
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	No it's 99+ that is regulated by variable voltage. In a return style fuel system (pre 1999 Mustangs) the fuel pressure is regulated on the fuel rail in the engine compartment. The fuel pressure regulator acts like a faucet allowing fuel to go back to the fuel tank to relieve pressure. In 1999 Ford went with a returnless system, meaning there are no lines back to the gas tank and no fuel pressure regulator per se. Instead, the ECU increases and decreases the voltage to the fuel pump to regulate fuel pressure. If the fuel pump isn't designed for this (example: Walbro is designed to operate at a constant 12v) then it can burn up. Your 1998 has a return style system, meaning a Walboro will operate as intended in your Mustang.

May 17th, 2011, 06:11 PM	#8
The Stallion mang Newbie Join Date: Mar 2011 Posts: 16 iTrader: 0 reviews	Did you guys figure out the answer to this situation? I have a 98GT and need a bigger fuel pump! Help.....

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Need real answers for 98 GT fuel pump replacement

Need real answers for 98 GT fuel pump replacement

Hey Randy