stock fuel pump lph?

5.0PiMpin · 02-15-2002, 03:42 PM

wats up guys, my fuel pump went out an i was wondering wat the stock lph on my 89 gt's fuel pump is. im gonna replace it soon and i was also wondering if maybe i should go for a higher lph than wat the stock is since i plan to do a lot more modifying to my engine, probably not supercharge though. ne input would be greatly apreciated . thanks danny

avbcon12 · 02-15-2002, 04:20 PM

i beleive its some where around 88 lph. i would recomend at least 190lhp if you plan on upgrading the injectors..

adam

5.0PiMpin · 02-15-2002, 04:25 PM

the guy at ford wants to give me a 125 lph pump for like $140. he told me not to go with anything higher than that because i would be putting too much fuel into the engine and my car has high mileage. but thats wat i thought a fuel regulator was for? thanks for the info

Godslayer · 02-15-2002, 04:31 PM

you are correct. The FPR will handle the extra load. Get either the 190. The Ford guy is a hoser

Unit 5302 · 02-15-2002, 05:38 PM

The concept of a fuel pump that is too large has merit. The additional strain on the fuel pressure regulator can shorten it's life. The fact the pump is pushing against a large backpressure can heat the motor up and cause it to fail early as well.

A 155lph fuel pump will support over 400hp. I see no reason to upgrade to a 190, which generally costs significantly more unless you are going to supercharge the car. Stock is 88-92lph, which will support about 250hp or so, so even a 110lph pump will support more than 300hp.

02-15-2002, 03:42 PM	#1
5.0PiMpin Registered Member Join Date: Nov 2001 Location: Daly City CA USA baby Posts: 42	stock fuel pump lph? wats up guys, my fuel pump went out an i was wondering wat the stock lph on my 89 gt's fuel pump is. im gonna replace it soon and i was also wondering if maybe i should go for a higher lph than wat the stock is since i plan to do a lot more modifying to my engine, probably not supercharge though. ne input would be greatly apreciated . thanks danny __________________ off road h-pipe , under drive pulley's , stage one center force clutch, removed air silencer, flows, K&N, 130 Amp pain in my alternator, optima yellow top 3.73 gears aluminum drive shaft and pro5.0 shifter...

02-15-2002, 04:20 PM	#2
avbcon12 Registered Member Join Date: Jul 2001 Location: West Bloomfield, MI Posts: 391	i beleive its some where around 88 lph. i would recomend at least 190lhp if you plan on upgrading the injectors.. adam __________________ 90 GT black/ grey leather ported GT-40 heads w/ 1.7RR, Cobra intake w/ ported lower, 24# injectors, 190LPH pump, 75mm Pro-M MAF, 65mm TB, K&N panel, BBK long tubes, Off road H-pipe, 2 ch. Flowmaster, Black magic fan, Kirban FPR, 180 deg. T-stat, 3.73's, Steeda Tri-Ax, 130 amp alt. Accell 8.8 race wires/cap/rotor, motorcraft plugs, Factory Five suspension, etc etc etc.... http://avbcon12.stangnet.com

02-15-2002, 04:25 PM	#3
5.0PiMpin Registered Member Join Date: Nov 2001 Location: Daly City CA USA baby Posts: 42	the guy at ford wants to give me a 125 lph pump for like $140. he told me not to go with anything higher than that because i would be putting too much fuel into the engine and my car has high mileage. but thats wat i thought a fuel regulator was for? thanks for the info __________________ off road h-pipe , under drive pulley's , stage one center force clutch, removed air silencer, flows, K&N, 130 Amp pain in my alternator, optima yellow top 3.73 gears aluminum drive shaft and pro5.0 shifter...

02-15-2002, 04:31 PM	#4
Godslayer Registered Member Join Date: Mar 1999 Location: Largo, FL USA Posts: 274	yes... you are correct. The FPR will handle the extra load. Get either the 190. The Ford guy is a hoser __________________ Negative Mustang @ present time.

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02-15-2002, 05:38 PM	#5
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	The concept of a fuel pump that is too large has merit. The additional strain on the fuel pressure regulator can shorten it's life. The fact the pump is pushing against a large backpressure can heat the motor up and cause it to fail early as well. A 155lph fuel pump will support over 400hp. I see no reason to upgrade to a 190, which generally costs significantly more unless you are going to supercharge the car. Stock is 88-92lph, which will support about 250hp or so, so even a 110lph pump will support more than 300hp.