My 4.3L has a new remote set up
I ran my boost control just like this pic
question is, do i have to run a check valve at the T?
or it a normal T ok?
I just wanna be sure
The way geoff described is how i normally see cars setup with a manual turn style boost controller.
Normally the top port is used in applications running a solenoid for a pmw (electronic waveform signal) style controller like what i have on one of my other cars.
It helps to understand how a waste gate works.
with boost pressure applied to the side port it works with the exhaust pressure as it fights against the spring in the waste gate and helps open the waste gate to bleed off exhaust pressure and lower your your total psi.
with boost pressure applied the top port it works with the spring pressure to help keep the waste gate closed which will increase your exhaust pressure to turn the turbine wheel faster so you can build more boost
I don't remember saying anything about it going lower than the spring spring itself. Sorry if it came off that way. I don't understand how you have yours setup i guess. Plus what size wastegate are you running?Not so sure you are right on this, I have never heard of any way to run a lower psi than what your spring is, only higher with the use of a boost controller. With the boost controller turned all the way out(counter clockwise) you will be at the boost level of whatever wastegate spring you have in there, then you turn the knob to go to a higher level. And in my case I have mine on the side port and I am not running less psi than my spring, I am at 12 psi right now and my wastegate spring was a tial one that is 8.7 psi
Im pretty sure that the wastegate isn't suppose to see any vacuum. Im not sure if it will cause damage to the wastegate eventually or not leaving it that way. I was just always told to hook it up to fitting on the compressor or make one on the charge pipe if the turbo doesn't have one like my BW s475Yup, just one vac line from the manifold to the side port of the wastegate with the boost controller in between.