Most Reliable Diesel Truck 101 Engine

Having worked professionally with Diesel for the past 16 years and right now as a Diesel Magazine/brand chief, he halted himself and pondered what it was like when he was learning. He has tried to explain what diesel performance is in the magazine.

The diesel display industry exploded when Duramax emerged around the year 2000. Adam got his first job within the industry two years later. Having worked professionally with Diesel for the past 16 years and right now as a Diesel Magazine/brand chief, he halted himself and pondered what it was like when he was learning. He has tried to explain what diesel performance is in the magazine. Like to hear more? Only keep getting the diesel power mag picked up every month. Soon you'll become a supporter.

How they work

Suck, pinch, pop, blast, how the school instructed that. No, we do not claim anything like this here. That's how a 4-stroke engine functions. The piston drops within the cylinder pulling in fresh air through the intake valves (SUCK); after the piston makes its way to the bottom of its rotation it then comes back up compressing the air (SQUEEZE); next the injector sprays diesel into the combustion chamber atop the piston which due to the extremely high temperature of the compressed air it causes the fuel to ignite (BANG) pushing the piston back down the cylinder which creates the power to turn the rear wheels via the crankshaft, transmission, and axles; after the combustion event the piston travels back up the cylinder pushing all the spent air out the exhaust (BLOW); and the cycle repeats.

Combustion Engine

If you know the gassers, you know that every cylinder uses a spark plug to start the fire. Timing is dictated by the spark. But it is special for diesel. Diesel is much higher compression motors, so high that it is hot enough to ignite the fire by itself until the air is compressed.

More Air More Fuel

The event of combustion (bang) is how power is gained. So how to make more power is to increase the size of the localized explosion. It is achieved by adding more combustible and air. Adding fuel alone will only make power until there is insufficient air to burn the fuel with. Fuel needs air to burn. The ideal ratio of fuel to air is called the Stoichiometric Ratio. For diesel, this is about 14:1 (14 parts air, 1 part fuel) but they usually run at a much higher fuel-to-air ratio during normal operation. When you see black smoke, not enough air in the mix triggers it. The black smoke is simply a waste of fuel and power that comes out of the tail end. Everything was done to make more diesel power (and gassers) has to do with tuning, fuel delivery, air delivery, or keeping parts alive. We add fuel until more air is needed, so there is a bigger turbo going on and then we need more fuel. That cycle proceeds until something breaks. That part gets stronger, and the cycle starts again.

Torque

Diesel has more BTU (aka the capacity to generate power) than petrol. Yet, more gradually, it burns. Because of this, diesel can not produce many RPMs as a gasser, so they generate less power in the range of RPM. The maximum RPM for diesel engines is generally accepted as 7,000 RPM. 7,000 RPM will not burn fuel quicker than allowed for the least amount of time with today's technology. Somehow, someday, it will change, promise.

In the End

Diesel isn't quite different from gassers. They are physically stronger to withstand the increased compression and torque, have different ways to deliver the fuel to the combustion chamber, rev a little less, are tuned somewhat differently, but their basic operating concept is similar to spark plug engines.

We think we have made more questions here than answers, and that's fine. Email me at DW-Editor@engaged.media. We will find your question via email or in the Q&A section at the back of the Diesel World magazine, under the publication of Engaged Media LLC.

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