I guess this issue has been already discussed many time in this forum . Nevertheless I?m relatively young in experimental field and in RVs so I post the following question , hoping someone is so nice to give me some suggestion .
I have problems of temperature in my RV-7 180 CV . I have two CHT , one on the most cooled , one on the least cooled cylinder .
I have also a small door on the lower cowling ( I miss the English term , in Italian is ? flabello ? ) that can be open with a servo .
With this door open , during take off also in winter with externa temperature of 30 ? 50 F? , the temperature of the less favorable cylinder goes from 350-400 ?F to 450 ?F . The other more cooled cylinder will stay around 400 ?F .
After take off I usually level the aircraft quite soon reducing power as soon as feasible and until both temperature return to 350 F? but it take quite a while .
Than I resume normal level flight at 75% power .
From now on temperature are relatively stable around 350 ?F but if I start to climb also starting from an altitude as 3000 ft the temperature of the less favorable cylinder goes to 400 ? F .
Question : there is a way to improve ventilation inside the cowling ? Shall I install second door on the lower cowling ? or may be shall I enlarge the bottom opening ? regarding the baffle they seems to sit quite tight with the cowling ? tank you for suggestions ? Giulio
I have problems of temperature in my RV-7 180 CV . I have two CHT , one on the most cooled , one on the least cooled cylinder .
I have also a small door on the lower cowling ( I miss the English term , in Italian is ? flabello ? ) that can be open with a servo .
With this door open , during take off also in winter with externa temperature of 30 ? 50 F? , the temperature of the less favorable cylinder goes from 350-400 ?F to 450 ?F . The other more cooled cylinder will stay around 400 ?F .
After take off I usually level the aircraft quite soon reducing power as soon as feasible and until both temperature return to 350 F? but it take quite a while .
Than I resume normal level flight at 75% power .
From now on temperature are relatively stable around 350 ?F but if I start to climb also starting from an altitude as 3000 ft the temperature of the less favorable cylinder goes to 400 ? F .
Question : there is a way to improve ventilation inside the cowling ? Shall I install second door on the lower cowling ? or may be shall I enlarge the bottom opening ? regarding the baffle they seems to sit quite tight with the cowling ? tank you for suggestions ? Giulio