EGT sensors

EGT sensors are used to measure exhaust gas temperature and are an important part of many performance cars, turbo cars, motorsport cars and custom builds where better insight into engine load and combustion is wanted. When exhaust gas temperature can be monitored correctly, it becomes easier to assess how the engine is working under load and whether the setup, ignition and fuel are functioning as intended. Your EGT page also shows that EGT sensors measure exhaust gas temperature and that the category includes sensors, gauges, connectors and accessories.

In many projects, EGT sensors are used as part of tuning, monitoring and troubleshooting, especially on cars where the engine operates closer to the limit than standard. On turbo cars and other heavily loaded setups, exhaust gas temperature can provide important information about what is happening in the engine under load. That is why EGT sensors are relevant both in motorsport and on more thoroughly built road cars where better control of operation and safety is wanted.

There are different types of EGT sensors, and the choice affects both response and durability. Your page describes the difference between open and closed tip: an open tip gives faster response time and is especially suitable for tuning and motorsport, while a closed tip is more robust and better suited for daily use or more OEM-like installations. The open type reacts significantly faster, but in return has a shorter service life.

In practice, correct placement and fast data logging are also important if you want usable EGT data. Your page mentions that the sensor should be placed as close to the cylinder head as possible to provide accurate values, and that the sensors should preferably be connected to a data logger with relatively fast logging so fluctuations are captured. At the same time, it is highlighted that small sensors react faster to temperature changes than larger sensors.

When choosing an EGT sensor, it is therefore important to look at more than just thread and fitment. The type of sensor, response time, durability, placement in the system and compatibility with a gauge or data logging all have a major impact on whether the solution suits the car and the intended use. In some cars, the main focus is monitoring and reliability, while other setups require fast response for tuning and motorsport.