Originally Posted by brownbear

Are any of you guys running Pyrometers and Boost gauges to set up the fuel and turbo?

On Toyota diesels many are boosting the indirect injected engine to 14 psi. Conservative at 10 psi.

Also maximizing fuel useage can only be realized using a pyrometer(to effectively see Exaust gas temps) We go with a max of 1250 degrees F.

When older turbos start to produce less boost, either from a weak wastegate actuator or worn blades, your air levels drop and since your fuel is the same amount going into the engine you can get high EGT's, underload on a hill with your foot deep into the carpet. Enough so that damage could occur.

Notice older diesels smoking heavy under load. Could be many factors tho. Overfueling is the reason for the smoke.

Even Naturally aspirated diesels benefit from running a pyro, I was able on my Yota diesel to crank the fuel up a bit and get more useable power, with out getting too hot under load. Although any diesel can get to hot under load and get into the metal fatique range. I have see 1600 F on the pyro before. It requires downshifting to get more air in the engine and also backing off on the throttle.

Cheers, Darryl