What lph fuel pump should I get?
07-18-2007, 10:38 PM
#1
5th Gear Member
Thread Starter
Join Date: Aug 2006
Location: Rotterdam, NY
Posts: 3,333
What lph fuel pump should I get?
I need a higher output than stock fuel pump for my '92 LX 5.0.
Its a stock internally (except cam) 302 with the following:
24# injectors
AFR 165 heads
70mm throttlebody
custom ground Comp cam
Edelbrock Performer intake
Which lph should I get- 155, 190 or 255?
Also where is the cheapest place to buy a Walbro (or relabeled Walbro)? I remember there being a link to one that was cheaper than Summit but I cant find it.
Its a stock internally (except cam) 302 with the following:
24# injectors
AFR 165 heads
70mm throttlebody
custom ground Comp cam
Edelbrock Performer intake
Which lph should I get- 155, 190 or 255?
Also where is the cheapest place to buy a Walbro (or relabeled Walbro)? I remember there being a link to one that was cheaper than Summit but I cant find it.
07-18-2007, 10:46 PM
#3
5th Gear Member
Join Date: Mar 2006
Location: Massachusetts, New Bedford
Posts: 3,035
RE: What lph fuel pump should I get?
i just bout a 190.. off of www.jdsperformance.com they are wayy cheaper than summit the 190 was $80+9.50 shipping
ORIGINAL: mjr46
155 is more than plenty stock was 88 it supports up to 250 natural aspirated hp 110lph up to 350 155 up to 440 and 190 up to 540 natural hp however if you plan to supercharge in the future the above levels will be reduced because as pressure required by the pump increases the flow decreases if you have a ford racing catalog there is a whole section on pg 116 on how to choose the right pump do's and don'ts
155 is more than plenty stock was 88 it supports up to 250 natural aspirated hp 110lph up to 350 155 up to 440 and 190 up to 540 natural hp however if you plan to supercharge in the future the above levels will be reduced because as pressure required by the pump increases the flow decreases if you have a ford racing catalog there is a whole section on pg 116 on how to choose the right pump do's and don'ts
07-18-2007, 10:47 PM
#4
3rd Gear Member
Join Date: Apr 2007
Location:
Posts: 780
RE: What lph fuel pump should I get?
DEJAVU! Didn't someone just post this same exact question 2 days ago? 155 will more than support the motor you have. bigger pumps than you actually need create more heat and can lead to shortened pump life.
07-19-2007, 07:07 AM
#8
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
RE: What lph fuel pump should I get?
it isn't actually putting on a bigger pump than you really need will shorten pump life, because the pump most of the time is surrounded by fuel which has a cooling effect to the pump.....the main thing is most people who put the 255lph pump on a stock fuel system are not really ever going to see the full lph that the pump delivers they may only ever see 210-220 if that.... because the diameter of the stock fuel rails was never intended to flow that great of a volumne of fuel. to take advantage of all a 255 has to offer you'll have to upgrade the lines to a larger diameter. The only time you really need a 255lph is when your running alot of boost where you'll need volumne/high fuel demand
07-19-2007, 08:06 AM
#10
6th Gear Member
Join Date: Jun 2006
Location: Maine
Posts: 5,693
RE: What lph fuel pump should I get?
ORIGINAL: 92hatchLX
Walbro 255lph GSS340, I've never had an issue with it. Go with the 255 lph, there's no reason not to on a return style fuel system.
Walbro 255lph GSS340, I've never had an issue with it. Go with the 255 lph, there's no reason not to on a return style fuel system.
