Discussion and questions related to the course Understand AFR
how do you measure the exhaust gas temp on dyno?
Engine Dyno's often have a dyno header with an EGT sensor mounted for each cylinder. They dyno logging software will have a provision for displaying and logging this information.
Otherwise, you could fit EGT sensors when the engine is installed in the car. This would typically be connected to multi-channel EGT amplifier and connected to either the ECU or logger in the vehicle.
On topic. I have EGT probes mounted one inch from the head on each cylinder that report to a bar graphic gauge mounted in the car. My question is what is a safe temperature at full throttle under a hard dyno pull ?