Dumping Black Smoke

When you first start the truck if air pressure is below 100 psi or so you won’t hear the jet engine sound of the turbo with the vanes closed up.
If when you start the truck you are above 100psi you should hear the jet engine sound and that’s the normal idle sound on the 14.0 liter with variable vane turbo.
Usually when you get a ton of black smoke and no power it’s because the vpod is sticking

 

Apparently I walk beside still waters of turbo lake with those who know what they are. here is a stupid question I have always wondered about.

In the past when upgrade over the mountain I usually concentrate on Mr Pyro. And the other three or four gauges associated with oil temp, pressures etc in the old iron putting together how its doing with the work.

One gauge is boost probably from turbo. I get a nice fat gauge at the bottom of the hill and if I managed to pull it high enough say... a mile and plus up with more to go on a big one that boost insists on starving itself. She does ok, but turns out I need a gear down to get that old thing to get into rpm to breathe a little on that boost.

Fast forward years to 2001 We did Eisenhower in the west which is what? 2 miles up? Not a concern for that detriot S60 coming up and over. She acted as if it was still down by the sea. Which was something to consider.

Now the root of my question. If turbo spins fast enough to feed engine you think engine should burn that fuel no matter how high or low you are. Am I wrong?

 

The higher up you go the less dense the air is.. you might be stuffing the same amount of air in the engine but it's not as good. Less dense means less oxygen, less oxygen means a slower or weaker burn. Colder air is more dense than warm as well.

I may be completely wrong on all that but I don't think I am