I have a RV4 under restoration.
As we speak I have a O320-E2A (roller tappets) that would need a rebuild and probably a new Crank(prop strike)
Before I pull the trigger on overhauling this engine I would love to get some inputs from you guys. Here are some thoughts:
+ I was told that I MUST go for a O360. Much faster, climb better and much more fun. My personal observations is that the O320 with 160HP pistons would do almost the same job based on weight/power ratio.
+ I have a strong wish to have a constant speed prop since I will operate out of a short runway. I was told fixed pitch would make the approach much flatter. Since I also would like to use this plane for some light acro, a constant speed is probably the best option.
HOWEVER I was also told that it is hard to find parts to add C/S to a O320 vs a O360??!! I dont know what is in this, but I guess it is either the Gov or Prop or both.
I guess I could live with a bit less climb power as long as the O320 can be rebuilt to C/S. If thats not really possible, then I guess the only option would be to find a O360.
Another issue is that if I go for a O360, I would need to get another bottom cowling, and probably the longer gear struts. So I would really like to keep the O320 and spend my OH money on this one.
I have questions about upgrading to fuel injections too, but I guess we can discuss that in another post.
Espen
As we speak I have a O320-E2A (roller tappets) that would need a rebuild and probably a new Crank(prop strike)
Before I pull the trigger on overhauling this engine I would love to get some inputs from you guys. Here are some thoughts:
+ I was told that I MUST go for a O360. Much faster, climb better and much more fun. My personal observations is that the O320 with 160HP pistons would do almost the same job based on weight/power ratio.
+ I have a strong wish to have a constant speed prop since I will operate out of a short runway. I was told fixed pitch would make the approach much flatter. Since I also would like to use this plane for some light acro, a constant speed is probably the best option.
HOWEVER I was also told that it is hard to find parts to add C/S to a O320 vs a O360??!! I dont know what is in this, but I guess it is either the Gov or Prop or both.
I guess I could live with a bit less climb power as long as the O320 can be rebuilt to C/S. If thats not really possible, then I guess the only option would be to find a O360.
Another issue is that if I go for a O360, I would need to get another bottom cowling, and probably the longer gear struts. So I would really like to keep the O320 and spend my OH money on this one.
I have questions about upgrading to fuel injections too, but I guess we can discuss that in another post.
Espen