snake plissken

I have a procharger M1 on a 7.4mpi and on the installation sheet it says to T in on any port on the intake manifold.the easiest port i found and can T into is the port thats going into my fuel regulator does anyone know if that will work or know of a better place thanks

Scarab29AUS

Hi

I would like to know the answer to the question as well. Wouldn't it slightly disturb the reading that the fuel pressure regulator gets?

regards,

Richard

Turbojack

That is a good location. With that location you will be able to verify that the regulator is seeing when the motor goes in boost. If your gauge is not showing any boost then you know you fuel regulator is not seeing it. If regulator does not see boost it does not increase fuel pressure thus leaning out the motor.

Remember to do a spark plug check after the first short burst to verify the engine is getting enough fuel. If you lean it out you will be rebuilding the motor.

snake plissken

sounds like a plan then i will try it and see what happens

Scarab28

Shouldn't the regulator be fed from vacum off the Carb box and the boost guage come from the Intake manifold. They will read differently.

Griff

Personally, I think you install the boost pressure guage in the dash

snake plissken

So you install it in the dash and its sends signals to the intake like magic huh LOL

Griff

Install the gauge in the dash. The line that goes to it gets installed in a vacuum port in the intake.

Scarab28

Guage in trhe dash - we all agree. Vacuum to the intake. Now where does the fuel pressure regulator line come from?

roguegts

Intake manifold as well. Anything that has to do with tuning (be it map sensor, fuel pressure regulator, etc.) should always see the same pressure thats going directly into the motor.

If you're taping into a 3/8" port then a T between the gauge and regulator will be fine.