fstringham7a
Well Known Member
RE: Low EGT's
At take off and intial climb out RPM is 2650 and the EGT's are #1 1128, #2 1176, #3 1110, #4 1187......
It is my understanding that on an ECi IO-360 EGT's should be between 1250 and 1300 during the high power take off portion of fliht
At cruise 75 % power EGT's will range from 1100 to 1200. At WOT high RPM
(85%) power EGT's were between 1250 and 1300.
Now with these points made I would assumn the engine on take off is runing to rich. Or the EGT probes are not showing correct temps. (Dynons EGT probes palced two inches below the exhaust attach point to the engine. Ialso find it puzzeling that at cruise the EGT's are so low considering the power settings.
I have mentioned this before but when the OAT's are cool the oil temps go up and when the OAT's are hot the oil temps go down. Temps run from 160 to 200
At WOT, 2350 to 2400 RPM, 7500 msl, 12.5 GPH, the CHT's are in the high 390's to low 400's......with #3 leading the pack at 420.....EGT's in the 1100
Throttled back to 21.3, 2350 RPM, GPH 10.9 the CHT's #1 376, #2 397,
#3 383, #4 382.....EGT's stil in the middle to high 1100's.
I have a plenum that encloses the engine compartment with Van's stock baffles. Cold air ram induction. P-Mags (I have checked the Timing and it is solid).
So any ideas as to why the low EGT's? (I probably will have to reset the fuel flow at the throttle body) (I am assuming the EGT's are accurate).
Frank @ 1L8 & KSGU ...RV7A... Phase 2
At take off and intial climb out RPM is 2650 and the EGT's are #1 1128, #2 1176, #3 1110, #4 1187......
It is my understanding that on an ECi IO-360 EGT's should be between 1250 and 1300 during the high power take off portion of fliht
At cruise 75 % power EGT's will range from 1100 to 1200. At WOT high RPM
(85%) power EGT's were between 1250 and 1300.
Now with these points made I would assumn the engine on take off is runing to rich. Or the EGT probes are not showing correct temps. (Dynons EGT probes palced two inches below the exhaust attach point to the engine. Ialso find it puzzeling that at cruise the EGT's are so low considering the power settings.
I have mentioned this before but when the OAT's are cool the oil temps go up and when the OAT's are hot the oil temps go down. Temps run from 160 to 200
At WOT, 2350 to 2400 RPM, 7500 msl, 12.5 GPH, the CHT's are in the high 390's to low 400's......with #3 leading the pack at 420.....EGT's in the 1100
Throttled back to 21.3, 2350 RPM, GPH 10.9 the CHT's #1 376, #2 397,
#3 383, #4 382.....EGT's stil in the middle to high 1100's.
I have a plenum that encloses the engine compartment with Van's stock baffles. Cold air ram induction. P-Mags (I have checked the Timing and it is solid).
So any ideas as to why the low EGT's? (I probably will have to reset the fuel flow at the throttle body) (I am assuming the EGT's are accurate).
Frank @ 1L8 & KSGU ...RV7A... Phase 2
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