Aac Valve Plumbing, plumb to Boost side or Atmosphere

[LJ RB]

Hi, I have an Modded RB25 in an LJ Torana and have aquestion regarding the AAC valve, I have an aftermarket Plenum and not sure of the correct or factory plumbing for the AAC Valve, is the intake pipe to the valve supposed to be to atmosphere pre-Turbo or should it be plumbed pre-throttle body on the boost side? Thanks 

Edited July 19, 2016 by LJ RB

[HarrisRacing]

If single TB plenum just find a location to "jump around" the throttle body. This will be pressurized under boost and of course the leg from the plenum (vacuum side) will be under vacuum so plan your hose accordingly. My Hypertune came with an adapter that actually could have been threaded directly to the manifold on the vacuum side (but I just used some pretty thick silicone hose I had).

 

[LJ RB]

Ok thanks for that, yes it is a single throttle body. The Value wasn't plumbed when I Bought it, it was just vented to Atmosphere and I wasn't sure if it would leak boost back through it when under pressure. I will plumb it back before the throttle body in the intercooler pipe.

Cheers

[Dose Pipe Sutututu]

pressure side so the valve doesn't essentially have pressure against it.. pressure in the plenum and pressure on the coldside pipe would have the same +ve pressure on boost

[LJ RB]

Makes sense, will plumb it up like that, thanks for the info.