Engine/Transmission (1994 - 1998) #5 plate/boost question

[MatthewPark]

I have a #5 plate in my 1994 5 speed truck. When I'm hauling a not so heavy trailer (<5000 pounds) up a decent pass and I have the urge to haul ass, or if I am towing a heavy trailer (up to 10,000), I have seen the EGT's right around 1350 before I got out of it. I'm sure it wasn't that hot for that long, but I definitely need to watch more carefully.



For what reason should I not disconnect my wastegate elbow altogether? The only reason I see it being there is for turbo life. Maybe it puts EGTS in the correct spot with the plate in the stock position. Right now I get 28 pounds. From what I have read, the stock turbo isn't efficient over 35 pounds, but at the same time they don't ever go much above there. I have yet to try this setup, but I don't really see a reason why it wouldn't help some.



I guess here's my question. Is the way my pump is setup with my plate delivering more fuel than my turbo can supply air for?



I'm not going to move my plate back. I'm going to get a larger turbo (or 2) and upgrade my pump and injectors in the near future. If I just need to keep my foot out of it a bit with the stock turbo on the hills, then that's what I'm going to do.

 

[vssman]

If it were me, I'd set the boost to run 36 psi max WOT. Did you have an adjustable boost orifice elbow? Screw it in a bit. That should help keep EGT's from climbing as fast. Also, remove the plastic tube between the inside fender and stock air box. You could also drill a few holes (with a hole saw) in the bottom of the air box for a bit more flow.