My fuel pump went out today. Eventually Id like to do a 347 stroker block but short term Im gonna upgrade heads, intake and cam. Should I get a higher volume fuel pump.?
- posted
16 years ago
89GT fuel pump options?
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16 years ago
Absolutely. Get a 255 lph unit. There is no reason not to replace a broken stock pump with a high flow one. Even if you plan to leave the engine stock.
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16 years ago
ford racing has an in tank replacement high volume 190 gph 40 psi for about $220. I think that would be my choice so i dont have to fab any in tank pickups.
These may be dumb questions but doesnt hurt to ask.: would I have to replace the stock fuel line for increased pressure? with a stock engine and a higher volume pump would have to worry about the injectors? would gas mileage go down?
Michael Johns> > My fuel pump went out today. Eventually Id like to do a 347 stroker
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16 years ago
nope, unless your going for 500 HP
Nope, you have a fuel pressure regulator, keeps the pressure drop constant across injector. The new pump can provide more volume at a given pressure, but the computer regulates the volume by timing the injectors on/off.
no, the gas just recirculates, computer is closed loop, same amount of gas is used.
I had a 255 put in after finding stock pump with an FMU was too lean
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16 years ago
The 190 lph is still much better than the stock 88 lph pump. That price seems high though. Check around and I bet you can find it for about half that price.
The stock lines are good for up to 400-450 rwhp unless you are going to install a blower/turbos. With forced induction the effective fuel pressure has to compensate for the increased pressure in the intake tract. Since your mods are based on a NA engine you should be fine using the stock fuel lines.
No. The good thing about having a high flow pump is that you can install larger injectors, if needed, without suffering from pressure drops.
No. The fuel system on a Fox Mustang is a return type. The fuel pressure regulator is what keeps the pressure to specification. Excess fuel gets returned to the tank via a fuel return line by the regulator. Fuel mileage won't be effected because nothing will have changed on you engine that would cause the computer to meter out more fuel.
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16 years ago
Top posting is far worse than the question. That is the pump that I have and I can't remember if it came with all the stuff new or if I just put it on the existing assembly, but I didn't buy or fabricate anything different. I do remember it at least had a little plastic strainer thing to replace the old one.