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Re: Real world RPM
Get used to the oil splatter it will take a while before that goes away ( at least
with my experience with the DA150). I would run a Mejlik 30x10 instead of the 32x10, especially when new. This prop will suprise you I guarantee! When the motor breaks-in it can be a little loud on the top end, but for 3D the throttle response is awesome. |
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Joined Dec 2006
96 Posts
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Re: Real world RPM
I have a CRRC Pro GF45I 45 cc engine converted from petrol to methanol. no changes made other than an adaptor to use a standard glow plug. this engine turns a bolly 20x8 carbon prop at 7700rpm.
it uses my own design of muffler that is separate to the engine eg...the muffler is solid mounted to the airframe. exhaust is via an engine header pipe through a flexible joiner then to the muffler. fuel/oil ratio is 40:1 synthetic oil/ methanol. its no powerhouse like a DA 50....but it hauls my 84" wingspan extra around no worries. all up weight is around 8kg's the engine is making around 12kg's of thrust on the ground....would expect around 14kg's thrust in the air once the prop unloads a little. |
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Re: Real world RPM
3W 106, Crappy OH weather, PT 27x10, 89oct. gas, mixed 60:1 = 6450R's. Very little prop rip!!!!
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Re: Real world RPM
Just got a 1999 toc 150 3w cans , 30-10 mejzlik turning 6000 with a module thats not advancing correctly, 87 octane shell, 50-1 quicksilver oil. Had to advance hall effect to max by enlarging the holes laterally. Does anyone know what component in the module controls the advance. Am electronics tech, and could change the faulty component. Thanks for any help. No blue dot, 4.8 volts on module
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Manakin-Sabot Va
Joined Apr 2006
645 Posts
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Re: Real world RPM
BME 110 26-10 Mejzlik 7250. Right after 10min of flying.
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Re: Real world RPM
Quote:
I believe the ignitions are sealed and non repariable, the timing advance is not adjustable. |
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Re: Real world RPM
Quote:
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Re: Real world RPM
HI Dan think i have solved the problem, Just got a c&h twin module with syncro spark, with the cm6 plug covers. Dont have to mount it to breathe either, am sure it will work ok, will post the results later Thanks for the response.. Jack
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Re: Real world RPM
CH is much better and unlike all others they are repairable!
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Re: Real world RPM
HI Dan, nd everyone Ordered a c&h twin module for the 3w 150 and ran it yearerday, results same gas, oil, prop as before 6400 rpm, with the same needle settings, so the 3-w module was not advancing ,or retarding at all,and the engine idled at 1000 rpm, and was very smooth running at all speeds. An it does not have to be mounted so air can circulate around it. Regards Jack
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Re: Real world RPM
Fuji 50 with stock muffler
50:1 fuji oil 87 octane 2 gallons-factory settings Mejlick 22x8--7100 Very happy with the motor. Seems competitive with others of similar class. |
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Re: Real world RPM
DA50 - KS 1060 Tuned Pipe - Airwild 23x8 - 100:1 Amsoil
7 gallons of fuel so far.. https://www.flyinggiants.com/gallery...achreading.wmv 7159 RPM's |
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