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Old 01-19-2009, 10:31 AM   #1
rodder
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Join Date: Apr 2005
Chapter/Region: Tri-State
Location: Blue Mountain, PA
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2005 OBP STi 355 whp
RIP :(

Default need help pls: what goes here? (vacuum/coolant lines)

I'm nearing the end of my engine build and can't seem to figure out what plugs into these couple places.

First up is the most confusing to me... what connects to this hard line? It's part of the coolant passages/hard lines that run underneath the intake manifold.





Next, what plugs into these two inlets on the intake manifold/throttle body? I think the lower is a reference source for the BPV but what goes to the top one on the throttle body?



Finally, if anyone can give any insight on hooking up my boost lines it would be awesome. I'm running an aftermarket boost gauge, factory recirc BPV, HOA 3-port boost control solenoid and an external gate. Compressor housing of my turbo (FP Green) is also tapped with a barbed fitting that needs to connect somewhere in that mess as well I assume.

HUGE TIA for any help.
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Old 01-19-2009, 10:34 AM   #2
amalgrover
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Default yes...

those are the coolant lines...if you had to, the throttle body area could be bypassed...
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Old 01-19-2009, 10:54 AM   #3
rodder
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2005 OBP STi 355 whp
RIP :(

Default

so am I missing a hose between the coolant passage and the throttle body but I can just cap them off?

any insight on the boost lines?

thanks!
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Old 01-19-2009, 10:58 AM   #4
novacivic
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wr blue

Default

the one circled in green is where you connect the line to your bpv/bov
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Old 01-19-2009, 11:00 AM   #5
gtasti
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PSM

Default

you can just cap off the TB both lines/ use that one line going into your tb and connect it to the one that haves nothing on it

as for boost lines
port 1 to side of waste gate
port 2 to turbo
port 3 vta or to intake

thats how the GM ebc works
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