Fuel pump questions

[N A]

Anyone using a 155 or 190 lph fuel pump? What brand are you using? How do you like it? Are you using it along with an adjustable fuel pressure regulator?

[Blaze86Vic]

There is no need to "upgrade" your fuel pump. The fuel pump in our cars is the same pump that is used in the Ford trucks, the same pump that feeds a EFI 460 with 24# injectors WITH a return line. If you do decided to "upgrade" take note of how much smaller your new pump is in comparison to your original. I showed a pic of my fuel pump to a mustang guy I work with who upgraded to a 155lph pump. When he saw my pump he stated "The only reason to replace that is for weight reduction."

Pics of me replacing my fuel pump. And no it didn't die, I thought it might have been the cause of an issue that turned out to be a bad injector.

http://grandmarq.net/forum/viewtopic.php?t=5492

[DuceAnAHalf]

Mine flows 567lph/ 150 gph or 900 lbs/hour

[Blaze86Vic]

This is your fuel pump right Duce?? What model is it? And how much was it?

[mrltd]

Size isn't everything...It's funny though. Go to a mustang site...everyone says that the stock pump is barely enough for a stock stang motor...

Anyway, I ran a 110 in my old 87. I don't remember the brand though. Right now I have the stock pump in the wagon with a motor pushing ~270 HP. Seems to do fine. Although the plugs read LEAN...and it smells really rich at idle...which means a bit lean up top...

Adjustable FPR is a waste of money...It's just not needed unless you are running an insane amount of mods.

[DuceAnAHalf]

This is your fuel pump right Duce?? What model is it? And how much was it?

Yup thats it. It is the Aeromotive Street Rod pump. Will support up to 750HP, and is alcohol compatable. Summit wants $161 for it, the regulator is another $60-$70, guage is around $20.

[N A]

Blaze86vic, are you 100% sure the stock fuel pump is enough for the HO conversion? My stock pump whines now. I notice it, passengers notice it and it can be heard when you're outside the car. I want to replace it before I bolt everything up and the motor goes boom!!! I'm going to go with an 155 lph pump just to be sure.

[Blaze86Vic]

Yes 100% sure. If you wanna go nuts buy something like Duce did, othersire it will be a waste. Maybe you'll get more flow (than you could possibly use) but you will lose the reliability. Your pump whining is not neccesarily a bad thing, go ahead and replace it if you like, I won't tell you not to. But most of these high flow pumps are not designed to go 200,000 miles. And as I stated before, our pumps are plenty sufficient for a 460 EFI, a measly HO will be nothing.

[mrltd]

Hey Blaze, don't the EFI 460's and most of the other trucks run a low pressure and high pressure pump? Intank and frame rail mount pump? I kinda remember them on the trucks I worked on, and the listings for replacement tanks show a low and high pressure pump....

A 110 LPH is more than enough for a slightly modded HO..worked fine on my 87 and I put a ton of miles on that car. If you go too big, you are putting alot of strain on the pump itself and you are just heating up the gas. If you go too big you also run into issues in cornering with sucking air. You will have to modify the panther fuel pump mount to fit the smaller mustang pump.

[gadget73]

The whine is normal. Mine isn't really bad but the one on my Chevy is really annoying. I'd check the pressure and see what its holding at, and if its OK I would probably leave it alone unless you're planning to replace it just for general purposes.

[N A]

The pump in my old '89 Town Car didn't whine like this car. This pump is probably the original fuel pump from the factory. The car has about 81,000 miles on it and I'd feel better if it was replaced.

[Blaze86Vic]

The pump in my old '89 Town Car didn't whine like this car. This pump is probably the original fuel pump from the factory. The car has about 81,000 miles on it and I'd feel better if it was replaced.

LOL 81K??? That's it!!!!??? The one I pulled out of my car was working and is still good, and it has 273,000miles on it. Don't mean to offend you but our stock pumps are good for well over 150K, unless there is an odd problem. You may find that when you replace the pump the noise is still there. My new pump is louder than my old one was. There is a little bit of Pot luck in that department.

[DuceAnAHalf]

If you want to hear a loud fuel pump listen to a Holley Blue. My aeromotive inside the trunk with no back seat is quiter than my brothers Holley blue mounted under the car, and he has an aluminum firewall.

[p71towny]

Im gonna throw a holley red on the vic. Deadhead system. Yes those holley pumps are loud as hell. My chevelle made all sorts of noise.

[N A]

How do you make them run quiet?