HKS GT2835 Wastegate vacuum setup

[Argyle dan]

Hi, could really do with some help on this, I’m trying to find some info or instructions on how to plumb the wastegate vacuum lines in. I know there’s no manual in English available but I’ve been looking on tinternet to no avail. I will be running a link thunder ecu with a 3 port solenoid. As there is no vac port on the turbo housing itself do I go and take one from the throttle body or do I tap the turbo housing and take one from there. I’ve looked at the link wastegate plumbing page (attached below). Looks like there’s 2 lines from the inlet side, from what I’ve seen on tinernet getting a bit confused on how to set this up. Any help would be greatly appreciated. I apologise for the bad photo, can’t seem to upload photo from iPhone main camera.

[Mike2JZ]

Usually the shortest routing for vac/boost lines is preferred, thus why some turbo's have a vac port built into compressor housing, as they are nearer to waste-gate than the inlet manifold. You can easily drill and tap a vac line fitting if needed.

 

If you aren't up for drilling & tapping a vac line on the compressor housing, then the best thing is you can run a vac line(s) from the inlet manifold down to your wastegate(s).

 

Your vac line from the inlet manifold/source point needs to be connected to the bottom port on your external wastegate. With just this hose connected, you will be able to run the wastegate at their base spring pressure.

 

If you want to add boost control, then you need to hookup the top port of the external wastegate to the correct port on your boost controller.

[Argyle dan]

I don’t mind drilling and tapping one of the turbos,I take it either one would do. Top hose to boost solenoid, bottom hose to turbo compressor housing. It’s basically how I’ve got the stock twins set up at the moment. Just that with there being no vac line from the turbos and so much conflicting info out there, just totally threw me.