Virtual Works Racing intake manifold - what is the function of this nipple?

[Mgrene]

Does anyone know what this nipple is for? Right now there is nothing attached to it

 

 

 

 

 

[ibby]

Maybe for a gauge eg air pressure or temp?

 

 

[Mgrene]

Well, if one wants to meassure air pressure in that location, it must be quite critical that the nipple is not blocked/filled :-/

 

 

 

[Wez]

If not in use that should be blocked.

[a98pmalcolm]

Many after market TB's have nipples and points like this, mine has 2. Both are blanked

[TheTurtleshead]

Power steering idle-up valve. It uses two connections, one before and one after the throttle butterfly.

[Krister]

^

 

This

[Mgrene]

Funny that you mention that because I have noticed that it takes some force to turn the steering wheel. Maybe it has something to do with this.

Anyone who has a diagram how the power steering reserviour shall be connected?