Good Morning, Spent most of the night under the hood of my beast and learned alot about wastegate regulation. I am pleased to see you got that block off plate in and you were actually able to see some results.
I was able to speak to Precision Turbo and Elite yesterday (Thanks Wayne) and learned even more, some of which you might need to know in regards to boost loss. In speaking to Precision Turbo I learned one priceless lesson........ Don't speak to Precision Turbo. Completely useless and I am happy I have a nationwide plan on my cell phone. :lame: Being the producers of this wastegate they could not tell me if the bottom/side inlet on the wastegate should hold pressure or is there a bleed off of air as this is what I am experiencing. Wouldn't even tell me how to get the answer. If I didn't need their wastegate it would be a door stop right about now.
Josh, once you get to the point where you have a sealed boost reference from your intake track, get the regulator installed, and can verify that you have a solid system all the way to where the wastegate is you will hopefully be able to bypass my learning curve and go right to the fun part. Right Foot Engaged.
I think we will have to start a Wastegate tuning thread once we get you all set up.
I installed the block off plate between the uppipe and the wastegate and let me tell you what a chore it was, as soon as I started the truck, i had no more negative boost! Took it for a ride and the truck made instant power and boost. Makes 75ish on the ebp and only 35 on the boost max. I couldnt get the bolts any tighter at the block off plate so im sure its leaking boost there.
I think what we need to do is make a curved plate that goes from nut to nut on the flange where the wastehgate adapter meets the up pipe "y". This would eliminate the problem of having to hold the nuts while negotiating the bolts. Anyone form Elite listening.
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Also I still have a hose going from where I drilled and tapped the intake elbow to the wastegate. I think boost might be coming out there too. I need to plug the boost line and find a way to tighten the bolts on the plate tighter. I think i could possibly have damaged the metal gasket in there as well.
I agree you need to get the truck back to where you were before the wastegate mess started. Correct me if i am wrong but that should be about 80 psi of back pressure and 51-53 psi of boost with the 310. Mid 40's on boost with the 275.
I would remove the line off the waste gate and stick a stubby screwdriver in that with a clamp. Because like I said earlier the waste gate
DOES bleed off pressure from the bottom/side port. I verified this via a compressor and feeling around the gate for leaks and nothing. So if you had a line going from your elbow to your wastegate without
a regulator you definitely have a boost leak there. Don't worry about the wastegate opening up, mine would not open with 80 psi of back pressure. If it was set up right from Elite it definitely needs the boost to assist in opening up.
I got mine to work 75% properly last night and my back pressure is staying low, boost is where it should be (49-52) but the relationship between the two is not where it needs to be. At heavy throttle it is close to where I need it but sustaining the relationship I want over the entire RPM range is not where I want it yet. I am really starting to think we need to use that top port on the wastegate and I will explain why in another posting. I have to talk to a few more people first.
Josh, I think if you get your leaks sealed up and motor doing what is should without the wastegate in the equation you will be able to systematically be able to introduce the wastegate and get this nightmare over with. :ford:
Still here for ya bud.
