External Wastegate + Ebc Problem

[jay-rod]

So i have a Tial MVR external wastegate and a Gizmo ebc ( first edition) 4 memory

I was running gate spring pressure @ 16 pound fine.

I now tried to hook my EBC up like below

Blocked off the remaining air ports on the wastegate, 2 bottom, 1 top there is total 3 bottom 2 top.

Problem is, when hooked up this way, with the controller set to 0 or even the mac solenoid unplugged

I boost to possibly over 24 psi

2 questions.

1. Is this correct?

2. If your ebc stops working, do you overboost?

[KiwiRS4T]

I have a Synapse wastegate with 4 ports and it took me a while to work out how to set it up. I had to reread the instructions for the W/G a few times. What I am saying is the instructions that came with the EBC may be not enough to tell you how to set up your Tial. Is there anything on their website?

BTW what kind of ECU do you have? It may do a better job of controlling your Mac valve than the EBC.

[jay-rod]

Tial picture is pretty useless for EBC

[GTSBoy]

Pardon me if I am wrong.....but ...... all of the lower air ports are common, aren't they? They just give you orientation options for making connections. So effectively you have one top port and one bottom port, same as pretty much any EWG actuator, and treat it as such.

[jay-rod]

Which is what i have done.
Blocked off the unused ports, i only have 1 line in the lower, and 1 line in the upper.

If i do have it plumbed in correctly, ( which i believe i do ), if for some reason my EBC is not working, would that cause no pressure to get to the wastegate therefore making the gate never open?

If that is how this routing works, seems like a bad point of failure if your ebc loses power/stops working

Im hoping i understand this wrong.

[Dobz]

If the solenoid is closed when unplugged then it will be trapping air in the top of the diaphragm and not allowing the gate to fully open.

[GTSBoy]

Also, if you have the solenoid ports the wrong way around you can mess yourself up.

The whole thing with the top/bottom ports on EWG actuators is that the boost gets applied to one side of the diaphragm to help keep the gate closed until the EBC opens the solenoid to also put boost on the other side of the diaphragm, and therefore start to open it and control boost. If the solenoid is hooked up wrong you can get into trouble.

You can set up EWGs without using top and bottom ports. Perhaps have a look at the EBC instructions to see how to do that and try to see if you have any boost control action at all.

[jay-rod]

I will try that after work, will hook up as if it was a standard IWG.

If that works, i may just leave it like that for now.

[jay-rod]

Ok so it was 2 problems
The Gizmo Diagram was wrong.

Swapped around the lines.

Copied my brothers setup, ( different ebc but still mac )

But didnt raise boost, but gate was opening now.

Traced wiring, and the solenoid pins going into the Controller where pushed out of the plug hah...

So all working now.

20 psi tune tomorrow ftw