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| 700 Class Nitro Helicopters 700 Class Nitro Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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05-02-2012, 08:44 PM
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#1 (permalink) |
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Registered Users
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700N Engine help PLEASE!!!!
Ok guys, SOMEBODY has done this or maybe can help me! I want to convert my 700N to 4 stroke power, I don't do 3D so I'm not concerned about less power just longer run times.I'm thinking that a YS 120 or 140 4 stroke may work size-wise, and I'm hoping......but not sure.....that the crank ends might be close enuff to be able to use the stock fan and adapter, at least with minor mods.I can't find any conversions except for Zenoah and clones but have heard of these available in the past. ROUGH measurements from YS factory specs seems like it shouldn't be difficult to mount them width -wise.I think I can modify the shroud to fit, and some minor tweaking may be needed to fit in the frame.I plan on using 800 size tail and main blades so the lower headspeed should not be TOO big of an issue.Can anyone offer some more help? Parts or info? I'm sure there has been some dabbling in the past in this conversion, so one of you more knowledgeable HF's maybe could help me...
THANKS! 
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CX3,130X,Bergen Intrepid Gas & Turbine,Trex 800 Gasser HK600GT,HK500CMT,Goblin 770 Trex 800E |
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05-02-2012, 09:23 PM
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#2 (permalink) |
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Registered Users
Join Date: Aug 2009
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I thing gasser is your answer. Any way the ys120 is a two stroke not 4 stroke,
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TREX 700FBL - JR 8717HVs -Outrage BL9188HV Tail- OS 105HZR - Hatori SB-22 Pipe - Vbar 5.3 Pro Synergy N5C - JR 8917HVs -Outrage BL9188HV Tail- YS 56 SR- Hatori Pipe- Vbar 5.3 Pro |
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05-02-2012, 09:36 PM
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#3 (permalink) |
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Registered Users
Thread Starter
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Well, I thought about a gasser but I'd rather a 4 stroke unless it can't be done.YS does indeed make a 120 4 stroke...the 120SCH
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CX3,130X,Bergen Intrepid Gas & Turbine,Trex 800 Gasser HK600GT,HK500CMT,Goblin 770 Trex 800E |
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05-08-2012, 06:05 AM
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#4 (permalink) |
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Registered Users
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I don't think YS has a gas heli motor in production. At least they don't offer it on their web site.
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Trex 700N, 700E, 600E, 500E all Vbar 5.2 Pro FBL Dji F550 WKM Data Link 900MHZ DJI F450 Naza/GPS FPV 5.8 vtx TBS Disco w Core Naza GPS FPV 1.2 vtx MT Tiger motors |
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05-08-2012, 06:26 AM
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#5 (permalink) |
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Registered Users
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It has been done but I can't direct you to a thread!
You could wait for this http://www.os-engines.co.jp/english/...newsgt15_e.pdf They claim around 60min flight time for 600ml of fuel!
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CustomHeliParts/KDE TRex 700N ThunderTiger X50 FBL Ely.Q Vision 90 Ely.Q Vision 50 |
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05-08-2012, 03:17 PM
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#6 (permalink) |
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Registered Users
Thread Starter
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Well, I've pulled the trigger on a Helibug conversion using the G230RC Zenoah, the "Mercury 800" kit.Looks real good, can't wait to get it up and flying! Proven conversion, will give me the long run times I was after. I'll post updates as I go along. Thanks all for the help!
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CX3,130X,Bergen Intrepid Gas & Turbine,Trex 800 Gasser HK600GT,HK500CMT,Goblin 770 Trex 800E |
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05-08-2012, 06:46 PM
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#7 (permalink) |
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Registered Users
Join Date: May 2010
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My friend had his converted to gas. I will call him to get in here and help you out. He fly 3d and now he is waiting for another gov sensor to calm it down.
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05-09-2012, 11:25 AM
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#8 (permalink) |
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Registered Users
Join Date: May 2010
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Please send a PM to Mr.Abdulbasat, i hope he will help you out.
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