Vacuum line question

[Mtriple]

On the M20 intake manifold, there are two ports on the cap that faces the passenger side of the bay. One of the ports goes to the FPR, where does the other go? I've been looking at engine bay pictures and it appears that some cars have this port and some cars do not.

[ak-]

Boost gauge :)


Are both of your ports open? I don't remember seeing an m20 with the port open on the left side of the triangle.

[Mtriple]

Boost gauge :)


Are both of your ports open? I don't remember seeing an m20 with the port open on the left side of the triangle.

Exactly! Yeah, is the left side normally plugged/capped?

Here is the only pic I have of it at the moment. This is a bunch of stuff after coming back from powdercoat. Its in the center of the picture.

[whodwho]

It is for a future Megasquirt setup!

Always seen it capped on a stock motor.

[Mtriple]

It is for a future Megasquirt setup!

Always seen it capped on a stock motor.

Thanks, just what I was hoping to hear. I will be talking with you again once I'm up and running with my current setup.

[MR 325]

Most car's had the single port. Cars that had both had a cap on the rear port. I use mine for my MS/boost gauge feeds.

[Mtriple]

Most car's had the single port. Cars that had both had a cap on the rear port. I use mine for my MS/boost gauge feeds.

Perfect! Thanks Matt!