Secondary Air System

[Four - Twelve]

Hi All,

I am planning out returning to stock the BOV system on my GTR. On going through the schematics on nissan4u I need confirmation on one of the parts. The BOV schematic is as follows, please note SEC 148;

http://nissan4u.com/parts/skyline/er_r34/1999_10/type_1/engine_mechanical/turbo_charger/illustration_2/

Now in following the schematics, I have found SEC 148 is part of the vacuum piping;

http://nissan4u.com/parts/skyline/er_r34/1999_10/type_1/engine_electrical/vacuum_piping/illustration_1/

However, the specific connection is not specified. I am guessing that this is the air chamber in the secondary air system;

http://nissan4u.com/parts/skyline/er_r34/1999_10/type_1/engine_mechanical/secondary_air_system/illustration_1/

Can someone please confirm this for me?

Cheers.

John

[GTSBoy]

In your first image, the connection to 148 is simply the vacuum signal to operate the BOV. It can be from almost anywhere that has manifold vacuum. In a GTR, this does mean from the secondary air system under the manifold, because you don't have vacuum in the plenum.

[Four - Twelve]

Excellent, thank you for your confirmation. Most appreciated.