Has there been any solid answers to the debate about tapping into both actuators when installing a boost controller? I am in the process and thought maybe there has been an update technically on the situation. To sum it up is there any disadvantage in real world driving in using version 2 of the boost controller diagram.

 

The only disadvantage I know is that I have never heard anyone explain how/why it works. If it works, excellent. If not, you're on your own.

Personally, I'd install it that way first and see what happens.

Dave

 

Yeah I'm kinda thinking that way myself. How long have people used version 2 anyway?

 

I have been doing a lot of reading up on this recently (I have a low transition problem), and get the distinct impression that nobody understands how the precontrol and wastegate actuators interact to control boost on an FD. Some say that the precontrol solenoid/actuator controls primary boost, others that it only controls prespool and that the wastegate solenoid/actuator controls it, and others that there is some weird combination of both controlling it.

I have never read an explanation of their operation that convinced me that the writer really understood the true underlying process.

FWIW, I have dual Hallman manual controllers replacing the precontrol and wastegate solenoids and can independently control primary and secondary boost. However, I have no transition control (it is 6 psi) no matter what I do. Probably, the TCA (both solenoids seem to be fine), but may be the CCA or CRV...

 

Has anyone been running the version 2 with an EBC? Any experienced greddy type s owners care to chime in with an opion?

 

The APEXi- AVCR runs version two. My understanding (and it's very limited) is that you can control or dial out the transition. While the AVCR can be a pain to tune and depending on the selections you make when choosing the setup options you can either get rid of the transition or make it worse. I've yet to get my high flow turbo's in and am running on a set of tired old 97k ones that need the wastegate ported so my AVCR isn't tuned to work as intended. I will be using the #2 setup once the new ones are in and will see if I can keep you updated.