Dear folks, this forum is of most outstanding source of information for everything about RVs. Flying , building, so on...
I am faced with a difficult choice, I plan to operate a RV7A on a very high altitude field (4500ft having common days of @6500ft ) and with a grass runway 1650ft long (510m) .
I am buying an assembled RV7A that until now has by contract a Lycoming YIO-360-M1B 180hp c/s prop Hartzell C2YR-1BFP/F7497? 72
But I can still change that. My main goal is:
A) to maintain SAME fuel consumption because in Brazil some regions the facilities that carry fuel are very distante from one another
B) I don't want to increase much weight to the plane nose, so I have to consider that on planing a new engine
C) I want the most horse power with the lowest consumption and weight possible.
That will made my take off in such a high field more safe on a hot day. I did some experience with 180hp from a friend and the landings are dificult in such high place, but the take-off are leaving to little margin for safety. Taking about 75% of the field on our trials.
So I was considering to put instead the Lycoming either:
- Superior 360 with high compression pistons and cold air induction sump (185hp)
or
-AeroSport Power IO-375 (high compression with 205 HP)
I HEARD that due to balanced crankshafts (with less friction) and other improvements both this engines yields more power and less fuel consumption than the stock IO360 Lycoming, I will like to read your opinion in comments does figures are real?
I will have more power with less fuel consumption and thus be able to maintain my range and take off run more safe ?
Many thanks in advance for all the opinions that are based on your Experience in flying one of those.
I am faced with a difficult choice, I plan to operate a RV7A on a very high altitude field (4500ft having common days of @6500ft ) and with a grass runway 1650ft long (510m) .
I am buying an assembled RV7A that until now has by contract a Lycoming YIO-360-M1B 180hp c/s prop Hartzell C2YR-1BFP/F7497? 72
But I can still change that. My main goal is:
A) to maintain SAME fuel consumption because in Brazil some regions the facilities that carry fuel are very distante from one another
B) I don't want to increase much weight to the plane nose, so I have to consider that on planing a new engine
C) I want the most horse power with the lowest consumption and weight possible.
That will made my take off in such a high field more safe on a hot day. I did some experience with 180hp from a friend and the landings are dificult in such high place, but the take-off are leaving to little margin for safety. Taking about 75% of the field on our trials.
So I was considering to put instead the Lycoming either:
- Superior 360 with high compression pistons and cold air induction sump (185hp)
or
-AeroSport Power IO-375 (high compression with 205 HP)
I HEARD that due to balanced crankshafts (with less friction) and other improvements both this engines yields more power and less fuel consumption than the stock IO360 Lycoming, I will like to read your opinion in comments does figures are real?
I will have more power with less fuel consumption and thus be able to maintain my range and take off run more safe ?
Many thanks in advance for all the opinions that are based on your Experience in flying one of those.
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