Quote:

---

Quote:

---

Has anyone experienced rich mixtures throwing off EGT values? by that I mean raw fuel igniting in the headers and giving off ultimately false readings?

---

Yes I've seen that... also really late timing...they all will mess with the EGT reading... knowingwhats going on and also looking at the plugs goesalong with the readings 

---

You can cool the EGT readings with to much fuel or to little Same thing on timing Piston aircraft motors use lean of peak with 50 to 75 F degrees of peak on turbocharged motors and 25 to 75 F degrres rich of peak on N/A motors That is at steady state RPMs adjusting the mixture controllers slowly to get the readings, some have single probe systems and some have multiple probe systems on the aircraft instrument monitoring equiptment