What should my EGT temp be?
What should my EGT temp be?
The absolute maximum safe EGT range is debatable. Our universal rule of thumb, regardless of engine make/model/year, is to not exceed 1250° F and not to operate in the 1200° F – 1250° F range for an extended period of time.
How is EGT similar to putting something in a hot oven?
The concept of EGT is analogous to putting something in the oven. You can put your hand in a hot oven for a second or two, and nothing will happen. Leave it in there, and you’ll get burned. The same thing happens in a diesel engine.
Where does EGT heat come from in a diesel engine?
One important thing to remember is that although this process occurs very quickly in a diesel engine, the slow-burning properties of diesel fuel keep the fuel burning for up to 40 degrees of the crankshaft’s rotation, also known as crank angle. Where Does The EGT Heat Come From?
What causes a false reading on the EGT probe?
However, it is also possible that the exhaust gas temperature at the EGT probe will be more than the sustained in-cylinder temperature, especially if the engine has radical fuel tuning. This false reading can be caused by excess fuel igniting in the exhaust manifold, which creates a secondary combustion event.
How does EGT affect the performance of a car?
Operation at peak EGT, particularly on long runs like in road racing or circle tracks, will give a fuel savings meaning less pitting for fuel (increased range) as well as less likelihood of spark plug fouling. Temperature variations will occur between in between individual cylinders when using a probe for every cylinder.
One important thing to remember is that although this process occurs very quickly in a diesel engine, the slow-burning properties of diesel fuel keep the fuel burning for up to 40 degrees of the crankshaft’s rotation, also known as crank angle. Where Does The EGT Heat Come From?
The concept of EGT is analogous to putting something in the oven. You can put your hand in a hot oven for a second or two, and nothing will happen. Leave it in there, and you’ll get burned. The same thing happens in a diesel engine.
However, it is also possible that the exhaust gas temperature at the EGT probe will be more than the sustained in-cylinder temperature, especially if the engine has radical fuel tuning. This false reading can be caused by excess fuel igniting in the exhaust manifold, which creates a secondary combustion event.
Which is less critical EGT or turbocharged engine?
First of all, if you have a normally aspirated carbureted engine like your O-320 in your Grumman AA-5, the EGT is less critical than, for example, if you had a turbocharged engine where temperatures can and do run hotter.
