I want to start playing with EBC since my MS is set up for it.
I did some tests yesterday, all in 4th gear @ WOT. The goal in both cases was to see where I hit boost cut of 155 kpa (~8.5 psi) as a very easy way (in the absence of a passenger) of seeing how soon I can reach the target boost.
: Baseline, no changes to set up
Did not hit boost cut. Boost creep to about 1.5 psi over wastegate pressure after ~5000 rpm. Refer blue line in graph below.
: Disconnected wastegate actuator with open downpipe
Hit boost cut at 2000 rpm. Meaning I can make the target boost at 2000 rpm with EBC!
Great turbo choice, after all!!
: Disconnected wastegate actuator w/ baseline full exhaust
Hit boost cut at 3000 rpm. Meaning that even with EBC, I can't make target boost before 3000 rpm.
Refer red line in graph below.
Since I want to keep my exhaust for now, I want to go with setup #3.
To that end, I installed an MX6 boost solenoid since I had it lying around:
This is how it works, is this different to the GM valve???:
To test the solenoid, I set all the cells in the duty table to 100%, and saw if it boost cut anywhere. No dice. That means it isnt leaking the boost at all as it is supposed to.
Should I just get an ARO/GM valve? Or is there an easy way to tune the solenoid settings (frequency, differential and proportional values) to make it respond?