Adjustable FPR?

[68mustang5.0]

I noticed that my motor has a bolt on FPR :dancing6:


What kind of good adjustable FPR is there for the mod motors?

What kind of advantages can i see with an adjustable FPR?

Thanks! O0

 

[sn97gtnyg]

what does it look like?

 

[68mustang5.0]

The Fuel Pressure Regulator ( FPR) if you car is a 96-97 the FPR is on the drivers side fuel rail. its bolted on, towards the back of the motor.

On a 98, the FPR is on the passenger side fuel rail. its welded on.

 

[19mustang95]

you can change your timing, and using the FPR you can lean out or richin the amount of fuel.

 

[Jrgunn5150]

I never had a need for a FPR personally, everything you can do with it, can easily be done with an Xcal, Diablosport, etc.

 

[Thomas_W]

I never had a need for a FPR personally, everything you can do with it, can easily be done with an Xcal, Diablosport, etc.

negative. you can NOT change your fuel pressure w/ an X-cal.. and if your running HI hp, boost levels and Large injectors, you need an adjustable FPR.. if your not running those things, you dont need to waste your money on it.

 

[Jrgunn5150]

You are correct, I can't change my fuel pressure with my Xcal. I can however change the pulsewidth, witch pretty much equates to the same thing.

 

[Thomas_W]

You are correct, I can't change my fuel pressure with my Xcal. I can however change the pulsewidth, witch pretty much equates to the same thing.

yea sorta... but not really... more fuel, but your also raising your duty cycle which will max out the injectors if you extend the pulse width to much. just changing FP "pushes" more fuel thru that pulse and doesn't change the duty cycle..

so yea... but not really O0

 

[Jrgunn5150]

Right, but my basic point is that the thread author, who seems to be a NA bolt on guy, doesn't need a adjustable FPR.

 

[scarface]

aeromotive makes a nice one

 

[68mustang5.0]

aeromotive makes a nice one

Thank you david. lol

 

[Thomas_W]

aeromotive makes a nice one

my aeromotive started leaking 3 weeks after i bought it.

Replaced it with a kirban and never had a problem with it.

 

[scarface]

aeromotive makes a nice one

my aeromotive started leaking 3 weeks after i bought it.

Replaced it with a kirban and never had a problem with it.

mine lasted for 3 years with no issues, and still is going strong for the new owner...there good and bad in every bunch.

 

[Dalamar]

My regluator is prettier than yourse! :hammer:

 

[quickstang_1994]

You are correct, I can't change my fuel pressure with my Xcal. I can however change the pulsewidth, witch pretty much equates to the same thing.

yea sorta... but not really... more fuel, but your also raising your duty cycle which will max out the injectors if you extend the pulse width to much. just changing FP "pushes" more fuel thru that pulse and doesn't change the duty cycle..

so yea... but not really O0

The AFPR will be overridden buy the computer because it is set to a AF ratio so the computer must be changed. When you up you fuel pressure your computer closes the pulse width. The only reason to up fuel pressure is to make up for small parts lol (injectors).