BME 50vsBME 44
#1
Thread Starter
Senior Member
My Feedback: (29)
Joined: Jan 2005
Posts: 1,402
Likes: 0
Received 0 Likes
on
0 Posts
From: San Antonio,
TX
Hello,
Does a BME 50 have a greater increase in power over a BME 44 then the displacement increase would indicate? Dose anyone know if there are port timing differences? I realize that the weight is about the same and carb size is the same.
Dave
Does a BME 50 have a greater increase in power over a BME 44 then the displacement increase would indicate? Dose anyone know if there are port timing differences? I realize that the weight is about the same and carb size is the same.
Dave
#3

My Feedback: (31)
I don't know if port timing was changed, I doubt it. The only difference is cubic displacemnt to the best of my knowledge. Simply put there is NO substitute for cubes...
Remember the BME 44/50 are basically Echo/Kiorsk chain saw engine shortblocks adapted to aero use by BME...
Remember the BME 44/50 are basically Echo/Kiorsk chain saw engine shortblocks adapted to aero use by BME...
#5
Senior Member
My Feedback: (1)
the 44 and 50 may look similar but they aren't. the 44 is a bored and maybe stroked version of an older 39cc model while the 50 is a totally new design. echo has now added a bit more displacement to the original 50 too. and i'm not 100% sure but the above mentioned 39cc might also be a bored/stroked version of a 36cc...to lazy to look the info up though
the 44 also has a 12mm crank while the 50 is 15mm
dave
the 44 also has a 12mm crank while the 50 is 15mm
dave
#6
Thread Starter
Senior Member
My Feedback: (29)
Joined: Jan 2005
Posts: 1,402
Likes: 0
Received 0 Likes
on
0 Posts
From: San Antonio,
TX
ORIGINAL: ifshnee-RCU
Gee FLRZBK:
I have a 44 and am running a 22-8 with great success
ifshnee
Gee FLRZBK:
I have a 44 and am running a 22-8 with great success
ifshnee
Do you know what RPM it is turning?
Dave
#8
Senior Member
My Feedback: (1)
Joined: Jun 2003
Posts: 133
Likes: 0
Received 0 Likes
on
0 Posts
From: Boca Raton,
FL
Dave;
Gee I'm sorry, I did not take reading. I was using a mejslik 20-10 & just not getting the performance I needed on a 17lb edge. While at field a mate was using a BME 50 and had this BME 22-8 prop & he changed to a 22-10. I bought the 22-8 (BME prop)for $18. On a whim I put her on the 44 & had significantly better performance with the plane. Because it was a whim, I did not think to take rpm, but ear said it was not significantly lower. Hope this helps.
ifshnee
Gee I'm sorry, I did not take reading. I was using a mejslik 20-10 & just not getting the performance I needed on a 17lb edge. While at field a mate was using a BME 50 and had this BME 22-8 prop & he changed to a 22-10. I bought the 22-8 (BME prop)for $18. On a whim I put her on the 44 & had significantly better performance with the plane. Because it was a whim, I did not think to take rpm, but ear said it was not significantly lower. Hope this helps.
ifshnee
#9
Thread Starter
Senior Member
My Feedback: (29)
Joined: Jan 2005
Posts: 1,402
Likes: 0
Received 0 Likes
on
0 Posts
From: San Antonio,
TX
ORIGINAL: ifshnee-RCU
Dave;
Gee I'm sorry, I did not take reading. I was using a mejslik 20-10 & just not getting the performance I needed on a 17lb edge. While at field a mate was using a BME 50 and had this BME 22-8 prop & he changed to a 22-10. I bought the 22-8 (BME prop)for $18. On a whim I put her on the 44 & had significantly better performance with the plane. Because it was a whim, I did not think to take rpm, but ear said it was not significantly lower. Hope this helps.
ifshnee
Dave;
Gee I'm sorry, I did not take reading. I was using a mejslik 20-10 & just not getting the performance I needed on a 17lb edge. While at field a mate was using a BME 50 and had this BME 22-8 prop & he changed to a 22-10. I bought the 22-8 (BME prop)for $18. On a whim I put her on the 44 & had significantly better performance with the plane. Because it was a whim, I did not think to take rpm, but ear said it was not significantly lower. Hope this helps.
ifshnee
Thanks, Dave




