I have a new BME 44 with five tanks of gas through it using the Lawnboy Ashless oil. It sill runs rough at idle, and I am getting 7000 RPM with a Top Flite 20X8 prop (22 LBS thrust). If you have one please post your prop, tanks of gas through engine, and RPM's. I am getting a GP Wagstaff Extra 300 ARF, and I am not sure if the BME 44 will give me the power I want.

Thanks,

Chris

The BME44 will have plenty of power to pull the GP Extra. Keep in mind they recommend 10-12 sometimes 15 gallons of fuel to completely break in. As you reach the break in point you'll notice alot more power as well...

You haven't even started to break in that engine. Fly, fly and fly some more. The BME is a great little engine, just give it a chance to settle in.

Craig.

Remember, the advantage of an engine that takes a long time to break in is that it will take a proportionally longer time to wear out. These engines can run thousands of hours. After five gallons you will see a difference, but not five tankfuls.

My 44 has almost 5 gallons through it. Using Lawn Boy, but switching to Amsoil 2000 50:1 after another 1/4 gallon. I'm getting 7300 w/ a Menz 20x8. My idle is pretty smooth. Unlimited vertical on a 14.5 lb. plane, also on the 15 lb. plane I had before. I think you'll notice a difference in performance if you go to a Menz 20x8 or Mejzlik 20x10. I was unhappy with a 20x8 Pro Zinger.

John

I am getting a GP Extra. I would like to know if anyone has put a BME 50 in one. I see a few people with the 44 in it. I am wondering if the 50 will fit inside the cowl? I hate to be cutting out a big hole in it. I am also considering a 3W or a DA? anyone know?

I am mounting a BME 44 on the GP Extra 300 ARF. I think you will have to cut out the bottom of the cowl with the 44 or 50. I would go with the 50 for power. I will be mounting my engine in the next few days so I will let you know. Remember you need to cut some holes in the cowl for cooling. You have the two air scoops on the front, but you need exit holes for the air. The exit holes will be on the bottom. I can tell you that you will have to cut out holes for the exhaust.

Chris

Chris

Question. Since these engines are all ringed and need extended amounts of running time to break in, is there anything wrong with bolting it to a test stand with an appropriate prop and a gallon of 40:1 gas? Or do the engines need the heat cycling that occurs with normal running?

Well the BME recommends breaking it in flying. It adds in cooling the engine. It did take me almost three tanks of gas to get it leaned properly. With the BME you have to shut it down to make needle adjustments. It is a pain. I run one tank through it each month. I am putting mine on a GP Wagstaff Extra 300. Hopefully my next tank will be one the plane!!

Chris

Well you don't have to kill it but you must be real careful if you don't... As for break-in BME recommends about 10 gallons. I use the Lawnboy ashless oil and mix it 32:1 or 4oz per gallon.

Man adjusting that while it is running is too risky for me. I am a professional pilot and no fingers equals no job! As for the break in amount per Keith Baker he changed it too two gallons with the Lawn Boy ashless. Someone else posted that and I called him to verify. Two gallons and then 50:1 amosil mix. Keith said he is getting engine's back with carbon buildup due to the large amount of Lawnboy oil.

Chris