Stupid question, I im in the process of installing a boost gauge. I have everything plumbed up, but when I ran the truck the gauge didn't work. Come to find out the gauge works on pressure not vacuum. I installed on the 1/8 fitting on the intake. Am I doing soming wrong?

 

Do you mean it reads nothing at idle?
You wont register any boost readings with out load.

 

Ware did you find a fitting to plum into on the intake

 

No, I put a hand held vacuum pump on it and nothing. I did this after I started it and revved it up with no boost showing on the gauge

 

I had the fitting from some other project.

 

So this fitting is on the charged air side by the engine

 

it is on the intake (vacuum).

 

So you have it between the air filter and turbo

 

No, should I?

 

Should be between the CAC an intake manifold. I just put a boost gauge on the weekend and I drilled and tapped the cross over. This is the part the dip stick tube is bolted to.

 

Here is a dumb question. Is boost vacuum or pressure? If it's vacuum than the gauge I have is bad and I am driving my self nuts for nothing. Just so you know you are saving my sanity. Thanks

 

Boost is pressure

 

Ok, than I have it installed in the wrong place. Thanks again.

 

No trouble at all

 

We have boost. You are the man!