420A OBX FMU installation?

[safirenside]

Does any one know how to install this?

You must be logged in to view this image or video.

You must be logged in to view this image or video.

 

[dsm-onster]

Get the proper typical fuel lines and adapters, then go. . . Adapters? take the part to home depot and match the right fittings with barbed nipples on them. . . I don't see your issue. No offense bud, but you can figure this out just as easy as tracking down a pic and posting it on the web asking the question

 

[safirenside]

Get the proper typical fuel lines and adapters, then go. . . Adapters? take the part to home depot and match the right fittings with barbed nipples on them. . . I don't see your issue. No offense bud, but you can figure this out just as easy as tracking down a pic and posting it on the web asking the question

I have all the proper fittings to hook up the fuel line I just need to know how. The nipple on top is the vaccum correct? As far as the 2 lines on bottom which one is the "in" line fuel and which is the "out" line fuel?

 

[whiteboyz]

Here you go. Google is you're Best friend =)

 

[safirenside]

Here you go. Google is you're Best friend =)

one problem my stock fuel pressure regulator is atached to my fuel rail and theres no way to do that on my 420a. The stock fuel pressure regulator only has a vaccum line comning off it thats it.

 

[little-razcal]

Where is the adjustment on this ? It looks there isn't one. If there is not, why not stay with your stock FPR? The stock FPR can handle a hell of a lot of flow believe it or not.

 

[safirenside]

Where is the adjustment on this ? It looks there isn't one. If there is not, why not stay with your stock FPR? The stock FPR can handle a hell of a lot of flow believe it or not.

It increases fuel pressure acording to boost pressure.
I bought this car about 8 months ago. It was prviously turbo charged but the guy took off the turbo and intercooler. I rebuit the motor about 3 months ago and it has about 2000 miles on it as a non turbo. I have a 13g turbo that I want to install I just need to know how it hooks up i serched and seacrhed but no results. What lines connect to the bottom of the obx fpr. Does my main fuel line conect to the in line the my out line conect to the fuel rail??

 

[little-razcal]

No..

Your output line from the fuel rail goes into the input of the FPR, then the output goes to return to tank. The picture above shows just this.

 

[whiteboyz]

It increases fuel pressure acording to boost pressure.
I bought this car about 8 months ago. It was prviously turbo charged but the guy took off the turbo and intercooler. I rebuit the motor about 3 months ago and it has about 2000 miles on it as a non turbo. I have a 13g turbo that I want to install I just need to know how it hooks up i serched and seacrhed but no results. What lines connect to the bottom of the obx fpr. Does my main fuel line conect to the in line the my out line conect to the fuel rail??

That is because this OBX item is NOT a FPR. It is actually a FMU (rising rate) Im not sure if you know the difference or not. But who ever told you it was a fpr was wrong.

Here I'll make it easy and type it out for you.

Use some fuel inj hose and connect the stock fpr return line to the side nipple of the fmu. then connect some fuel line from the bottom nipple to the fuel pump's return line. then tap a vacum hose to a vac source from the manifold or any other vac source.

 

[VelocitàPaola]

Top left diagram. Any questions?

You must be logged in to view this image or video.

 

[safirenside]

Thanks all I needed to know.

 

[1g8420a]

Top left diagram. Any questions?

You must be logged in to view this image or video.

Ok so this Diagram is helpful.. so if I have no return line coming off the fuel rail then I have the early model 95-96? The weird thing is I have 1997 and I dont or have never seen a return line near the fuel rail..

 

[silvreclips]

No, if you have an early model 420a then you do have a return line off the fuel rail. On later model 420a we have a returnless system.

Look under the car just in front of the rear passenger side tire and you will see the fuel filter, on top of the fuel filter is the Fuel Pressure Regulator with a return line going back to the tank.