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Old Aug 25, 2014, 11:09 PM
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Salt Lake City Intl, Utah, United States
Joined Jul 2004
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building a raptor 50 gasser

I have a new raptor 50v2se with a new go-engine .56 gasser. I am setting it up and i know i need to switch out the silicone fuel line but i am not sure on the 2 fuel tanks (Header and Main) if i need new fuel clunks? Do i need to replace the fuel tank bungs or can i use the stock ones? Can i run a silicone exhaust deflector? Thanks
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Old Aug 27, 2014, 11:31 AM
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USA, IN, Commiskey
Joined Oct 2007
152 Posts
Quote:
Originally Posted by raptorhelis View Post
I have a new raptor 50v2se with a new go-engine .56 gasser. I am setting it up and i know i need to switch out the silicone fuel line but i am not sure on the 2 fuel tanks (Header and Main) if i need new fuel clunks? Do i need to replace the fuel tank bungs or can i use the stock ones? Can i run a silicone exhaust deflector? Thanks
You will not need the header tank. This engine runs a long time on the main. My tank still has the stock bung in it, no problem so far. I am running a silicone exhaust deflector. Mine is running good but a little on the hot end of the scale. I an running it easy. Don't know how to do smack.
Good luck with your heli and keep us informed.
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Old Aug 29, 2014, 10:08 AM
Complete RC Idiot Savant
The Netherlands
Joined Nov 2009
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My gut feeling says that if silicone tubing will not hold gasoline, then the silicone bung-tube will not either.

So I would suggest to at least change it for the black Neoprene or similar.

Tygon bung-tube is probably too stiff for aerobatics.

Just a gut-feeling, no experience from my side (have a few gassers, but do not do aerobatics).

Brgds, Bert
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Old Sep 06, 2014, 11:31 PM
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USA, IN, Commiskey
Joined Oct 2007
152 Posts
A little update. We have a Raptor 30 gasser. Just about have all the bugs worked out of it now. Put another tank through it today. Leaned it out to where it is going to run for a while. It flies just like it did before I removed the OS37, but with more power. I am not a 3D pilot, not even a good sport pilot, but it is a great little gasser. It doesn't fly like my 700 Helibug. Not heavy. just like it had a nitro engine in it. I like the sound better with the gas.
I got an email from a guy in Utah that has one of the Go engines in a Raptor 50 running 550 blades and it is doing good for him also. I have a little over a gallon through mine and I think we have finally got a workable small gas engine for our helicopters.

Jimmy
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Old Sep 07, 2014, 01:33 PM
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The Netherlands
Joined Nov 2009
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Any comments on the running behaviour? Is it well mannered like the OS 37 as for decent idle, ease of adjustment and transition from idle to working RPM, and more important: down again (thinking Autorotations and bailouts here)?

Did you find time to compare this engine with the HobbyKing Rotorstar .50 engine?

I am very curious, but it is really good to hear, that the gasser runs OK.

Brgds, Bert
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Old Sep 07, 2014, 08:58 PM
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It runs quite well. It is a little sensitive to adjust, but not as much as the glow engines I tried running on gas. It will idle all day long, I let it set and idle one complete tank just to see if it would do it. I was afraid the battery was going to go dead it ran so long. The transition from idle to flying RPM is just like the OS. The back down on mine is a little slower but it never quits.
We will have to see how it does long term. So far looks like it is going to work as wanted.
I found the problem I was having with the tail. I was running HV servos on everything except the tail and forgot. Burned up a good servo.
I have not ordered one of the HK rotorstar 56 engines yet. Will do that soon. They were out of stock the last time I looked.
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Old Sep 08, 2014, 03:03 AM
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The Netherlands
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It all sounds VERY promising....

Thanks for keeping us posted, curious about the Rotorstar....

Brgds, Bert
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Old Oct 03, 2014, 10:01 PM
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USA, IN, Commiskey
Joined Oct 2007
152 Posts
update

I have been flying the gasser Raptor quit a bit. It is doing great. I made a bad landing yesterday and had a boom strike. Replaced the bent boom and the main blades and back in the air. Here is a video of one of these engines in one of the new raptor 50's.

go engine 56 class gasline titan x50 3D SHOW (2 min 44 sec)
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Old Oct 04, 2014, 08:13 AM
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United States, MA, Worcester
Joined Feb 2010
151 Posts
somebody is been having luck with this motor

i think due to the economy, nobody is jumping in on it, but im going to try a rappy 30 with gas, these are not my photos but from someone else that is already flying it in a rappy.....from what i understand its a drop in , but have to get a 50 engine mount, caz its a 56 motor,


dealers for the engine
I recieved an email from the North American dis. He gave me information on 3 US dealers he has handling the engine. Here they are.
Rw Mods
http://www.rw-mods.com
rwmods@yahoo.com
Gasoline RC
http://www.gasolinerc.com
bjraptorhelis@gmail.com
Don's Blue Mountain Hobbies
http://www.donsbluemthobbies.com
info@nwtrainsntreasure.com
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Old Oct 11, 2014, 11:00 PM
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USA, IN, Commiskey
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Quote:
Originally Posted by Brutus1967 View Post
It all sounds VERY promising....

Thanks for keeping us posted, curious about the Rotorstar....

Brgds, Bert
Hobby King had them in stock today so I ordered one. We will see if they are the same. I have an RCXEL ignition to put on it.

I also found this video on Youtube
https://www.youtube.com/watch?v=jmQHXT4VLdk
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Old Oct 23, 2014, 10:09 PM
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I got the engine form Hobby King. It is the same engine. I took it apart and the engine is the same inside and out. Of course you don't get the ignition or the ring with the magnet in it. The case is even drilled and taped for the pickup.

Jimmy
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Old Oct 31, 2014, 06:47 PM
Howdie Doo Dat ?
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Pleasant Valley Modelport
Joined Sep 2006
8,952 Posts
At 10:1 you might want to look at Lucas Oil's carbon cleaner to add to the gas. One ~6oz ($6) bottle treats 20 gallons of gas. I tried some on carbon that was burned onto the stove reflectors after all else failed. I put a coating on the carbon, heated the stove (electric) burner a bit and the carbon wiped off.
The motor I had in mind for it had an oil leak which was found and fixed before I had a chance to test it in the engine. I will use it on my petroleum oil 2 cycles and see how well it does.
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Old Nov 13, 2014, 02:05 PM
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Lynden, WA
Joined Nov 2000
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Quote:
Originally Posted by mac2286 View Post
I got the engine form Hobby King. It is the same engine. I took it apart and the engine is the same inside and out. Of course you don't get the ignition or the ring with the magnet in it. The case is even drilled and taped for the pickup.

Jimmy
I couldnt find it at HK, got a link? a little gasser heli might make me get a heli again...
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Old Nov 16, 2014, 07:10 PM
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United States, MA, Worcester
Joined Feb 2010
151 Posts
its this motor..........but

http://hobbyking.com/hobbyking/store...li_Engine.html

but truth, buy the time you mod it to run gas and buy cdi and hand drill a magnet in flywheel, well you should have bought the gh-56 for 307 with the engine and cdi and plug and muffler......and another 40 for fan for raptor 30 or trex 600, i paid 340 for all kit for raptor 30, cant wait for it to come.....and i will start my build on my old 30 raptor.....

http://www.rw-mods.com/heli.html
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Old Nov 17, 2014, 08:23 AM
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United States, TX, Austin
Joined Sep 2011
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I'm going to pick one just to have a spare.
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