Fore fuel vacuum reference

[FloStang]

Hey guys almost finished installing my fore dual system in my hellion sleeper build. I'm using a gfb gforce 3 controller and using the below diagram to hook it up. Now can I use that blocked unused turbo vacuum port for the boost reference for the fuel system? Anyone else done this?

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[Plimmer]

Hey guys almost finished installing my fore dual system in my hellion sleeper build. I'm using a gfb gforce 3 controller and using the below diagram to hook it up. Now can I use that blocked unused turbo vacuum port for the boost reference for the fuel system? Anyone else done this?

I would connect it to the intake manifold after the throttle body, that way the pressure signal is most relevant to the conditions the injectors are operating under

Another comment that I know you didnt ask for, but your boost controller doesnt seem to be able to control boost by gear or by rpm. That is a feature you are going to want in the future cuz nobody wants more that 7psi of coyote in 1st and 2nd gear lololol

 

[Stephen@lethal]

You're going to want a manifold reference right there at the TB for a vacuum reference. Like Rob mentioned, that is the best source for it.

 

[FloStang]

You're going to want a manifold reference right there at the TB for a vacuum reference. Like Rob mentioned, that is the best source for it.

The only reason I asked is because the instructions ask for a boost reference so the second pump kicks in when it sees 5lbs of boost. I would think there is at least 5lbs in the manifold pressure at most times.

 

[Stephen@lethal]

I am sure there is, just most people to be safe use the manifold as the source since its the most accurate and closest reference.

 

[FloStang]

I am sure there is, just most people to be safe use the manifold as the source since its the most accurate and closest reference.

Gotcha thanks

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