I drove it today in a couple different configurations, but I am getting ahead of myself, here is what it looks like right now.
This is what I did for the air filter housing, I cut the inner fender and made it fit in front of the battery.
So here it is piped.
Notice the front brake reservoir being turned sideways.
The pyrometer probe installed.
The turbo compressor intake to the air filter neck, it's just two stock hoses put together, I am lucky I had these parts in good condition.
The hood does close, I was going to make this work with a stock hood without any holes in it.
And I have boost and pyrometer gauges.
So I drove it today, the first time I drove it I had the waste gate piped to the compressor outlet, I had the boost in that line, I also piped the injection pump vent line into that same line, so all these lines are connected to the compressor outlet that goes to the waste gate, the throttle body vacuum line is untouched, in it's stock configuration, so it drove fine, I could hardly get 7psi boost and it takes time to build up boost, fact is that going one speed there is no boost as I recall, even on the freeway, but when I put my foot into it even a little it starts building boost, it also blows black smoke when accelerating, I am only using the top half inch of pedal also, this I am not used to when driving this truck, I was planning to see what the EGTs did on this hill I drive up, but my pre-filter plugged up before I could get to the hill, I made it more than half way home before the engine died, lucky for me I had a filter in the glove box and the one tool I needed to change it out, I primed the system and it started right up and all was good, I drove home.
So I wanted more boost, so I removed the line going to the waste gate, plugged it and took off again for another test drive, around the neighborhood it drove fine, had a little more power, but when I entered the freeway I could not hold a steady speed, it was surging, meaning I would hold my foot in one spot and maybe 5/10 seconds later it would just start taking off even though I didn't move my foot, I would have to let off to get it to stop accelerating, I tried over and over to hold a steady speed but I could not do it, but it has more power like this.
My theory is that when the waste gate is hooked up it gives the rack steadiness, I had no surging issues on the first drive on the freeway before the fuel filter plugged up, but I did on the second drive, it is the only thing I changed, so I put it back the way it was on the first drive and I am now going to wait for the 2 valves I bought last night on ebay, one of them will go between the compressor and the waste gate to make that adjustable, the second valve will go between a boost source and the rack vent line, this line will be piped differently, I am going to punch two holes in the ABS piping, one for the boost gauge, the other for the vent line, I am going to have the waste gate/compressor line clean except for the valve.
It has more power than it had before, and on the freeway I normally have the pedal half way down and don't get that great of mileage, this time I barely had my foot into it, I also noticed my RPMs once while entering the hiway, normally I shift at 2500/2600rpms, anything more and it sounds over revved, well I looked down while entering the freeway and seen 3300rpms and it didn't sound over revved, but my exhaust pipe is dumping right under my seat right now, and I was looking at my boost for the most part.
I need a better exhaust system as everything including the flange connected to the turbo is just tacked on, it's leaking at that flange, leaking where the flex pipe is connected to the head pipe, the pyrometer probe is leaking as the mount bung is only tacked on, all that is temporary in my mind as I want to use an exhaust pipe that is the size of the turbo flange, the one on it now reduces in size an inch out of the flange.
All in all I am neutral about the results, I need the control valves before I change anything else, as the second drive was a fail but was easily reversible, I really need to fix the black smoke coming out when I am accelerating, it's not terrible, but I could see getting a ticket if I ignore it, I am hoping the control valve fixes it.