long story short, im looking to upgrade my fuel pump to a 255 LPH pump...what should i go with internal or external of the fuel tank...any input would be appreciated...thanks!

 

Okay, I'm curious. Why are you upgrading????

 

reason being: Im installing a Procharger kit shortly...the kit does not come with any fuel system upgrades other than injectors and supposedly the kit leans out A/F in higher RPMs on SOME trucks...so i want to prevent this problem before i run into it as this truck is my daily driver...HELLP

 

if possible i would use a stock replacement in tank. an inline would probably make plumbing difficult

 

dual svt focus pumps or dual aviators work too

 

Has anyone done the upgrade on a 3V motor??


Asinatra,
where would i get those? do they work for sure on the 3v application?

 

We'll since 98+ its all been returnless style fuel systems so i dont see why they wouldnt work

 

Agreed with asinatra here...any returnless style fuel system pump(s) will work. I'm sure there are people out there who have done that stuff on the newer 3V mustangs, but even so, it's been around since MY99 I believe.

 

o ok thanks guys...i didnt no the returnless systems went back that far...thought it was just the newer model...ive come across some higher output fuel pumps for the mustangs...so given that it is essentially the same fuel system, any reason these pumps wouldnt work if rigged into my fuel tank?

 

Us Lightning guy's use the 255 pumps all the time, Contact JLP he has them.

 

Jlp???

 

Johnny Lightning Performance, I believe.

 

are the pumps plug and play?? or do you have to do any special modding to get them to work right??

 

F-150 trucks are "return" type systems up through 2003, take a look, you have two lines on the fuel rail, one supply, one return.

Be careful installing Lightning fuel pumps on a standard F-150, the Lightning has a dual voltage system that runs the pumps at 8 volts up to about 2/3 throttle then the voltage rises to the full 12. The effect of this is that it reduces the fuel flow when it is not needed. If you run the "L" pumps at 12 volts at idle, the fuel pressure will rise due to the fact that the return line is not large enough to handle the amount of fuel returning to the tank.

Been there done that.