Why did i place a T in this hose?

[shadow]

Hey guys, tryin to get the car back on the road and i noticed that i have vaccum hose not connecting to anything on one side. Now i remember that i put the T there a long time ago but can't remember why...
I'm thinking it may have been for the old boost controller...

Description of where it is:
One end connects to the (looking at the engine from front of car) right hand side of the intake plenum, whilst the other end appears to connect to what i think is the stock FPR (the little black thing on the firewall). The T is placed in between there....
Sorry about the bad quality, but it was off my phone at night.
I think it might be from the old boost controller, and i've just pulled it off and ran the new AVCR off the intake manifold.

 

[lefty]

Im fairly sure thats to connect a mechanical Boost Gauge

FPR = Fuel Pressure Regulator, i think i only know that because I read my axepi boost gauge manual a while back.

 

[Entaran]

Someone had a boost gauge on it.

 

[shadow]

Yeah its all good guys, i reliased what i did, and then to top it off, this weekend blown the motor. Heads already been rebuilt but thing siezed bearing, so time to rebuild that bottom end for a stroker now.....
More $$$

 

[Entaran]

As long as you know that there's no such thing as a reliable stroker. Those things are mutually exclusive

 

[shadow]

Yeah looking away from the stroker and just gonna forge the bottom end, hopefully have engine out within next two weeks to check out damage. wish me luck!

 

[steve]

Put a 4G64 in it