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Old 02-03-2015, 04:09 AM
djpower is offline
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New Product
New DJ72 engine! DJ72-GTS V2 released!

New: DJ72-GTS V2 released!
Specially designed for 91-93inh 3D!!!

Please see below:
https://www.flyinggiants.com/forums/...111748&page=41

New DJ72 engine

SPECIFICATIONS
�� Displacement: 72CC
�� Max Output: 7.2 hp/7500rpm
�� Weight: (1580g)- w/o ignition & muffler
�� Bore:48 mm
�� Stroke: 40mm
�� RPM Range: 1200 to 8000
�� Propeller:2310- 2410
�� Tape of the spark plug: NGK CM-6
�� Ignition degree setup 28-35 before TDC
�� Walbro carburettor (HDA246)

New: DJ72-GTS V2 released!

Specially designed for 91-93inh 3D!!!

DJ72-GTS v2+EF 91“ Extra300 movie. More exciting!!!
PLS see below:

http://v.youku.com/v_show/id_XMzQ3Mj...zp.8244740.0.0

http://v.youku.com/v_show/id_XMzQ2OD...zp.8244740.0.0
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Last edited by djpower; 03-22-2018 at 04:41 AM.
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Old 02-03-2015, 03:50 PM
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You know I considered one of your DJ 85cc engines for a large 50cc size Gee Bee that I have that was super cheap and needed a heavy motor upfront, this plane would be lucky to get more than a few outings a year, club flyin,s and other times where I fancied pulling out something different. Was thinking a 24 14 prop on it and add smoke pump I have had laying about for years and fly the wings off it. I know its not supposed to be the strongest motor, but it is very cheap, and I dont mind buying cheap motors if they are only going to be flown on occasion.

Never did buy the DJ 85cc because I can find no way of contacting anyone for parts if needed, nothing, nada. Do you have a website or anything?, how would anyone make a warranty claim?. Who would buy a motor that could come faulty, any brand could, and there is no parts anywhere?, well a few parts on sdshobby for the obsolete mark 1 dj 80.

Apart from the above comments its personally its nice to see a 72cc single, I would buy a good 70cc single that could spin the same prop as a 70 twin or piped 60.

Will wait for one that has even the most basic support though which at this point your engines do not, sorry if I sound to be brutal but it is actually constructive advise.
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Last edited by raydar; 02-03-2015 at 05:58 PM.
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Old 02-03-2015, 07:48 PM
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Any background on who is DJ?
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Old 02-03-2015, 11:36 PM
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Here he is.
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Old 02-04-2015, 12:54 AM
djpower is offline
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Thank you for your suggestion!

Quote:
Originally Posted by raydar View Post
You know I considered one of your DJ 85cc engines for a large 50cc size Gee Bee that I have that was super cheap and needed a heavy motor upfront, this plane would be lucky to get more than a few outings a year, club flyin,s and other times where I fancied pulling out something different. Was thinking a 24 14 prop on it and add smoke pump I have had laying about for years and fly the wings off it. I know its not supposed to be the strongest motor, but it is very cheap, and I dont mind buying cheap motors if they are only going to be flown on occasion.

Never did buy the DJ 85cc because I can find no way of contacting anyone for parts if needed, nothing, nada. Do you have a website or anything?, how would anyone make a warranty claim?. Who would buy a motor that could come faulty, any brand could, and there is no parts anywhere?, well a few parts on sdshobby for the obsolete mark 1 dj 80.

Apart from the above comments its personally its nice to see a 72cc single, I would buy a good 70cc single that could spin the same prop as a 70 twin or piped 60.

Will wait for one that has even the most basic support though which at this point your engines do not, sorry if I sound to be brutal but it is actually constructive advise.
Yes, I realize that the warranty is the most Important thing now.
My own website and ebay shop is coming soon. I still want to find some local dealers to make warranty , very low dealer prices and good profit .
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Old 02-04-2015, 01:09 AM
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Quote:
Originally Posted by Jedijody View Post
Here he is.
No,It's not my style. Totally wrong...(>﹏<)
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Old 02-04-2015, 01:41 AM
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Long stroke(40mm)
Light weight
High quality die casting
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Last edited by djpower; 02-04-2015 at 01:49 AM.
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Old 02-04-2015, 01:59 AM
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Gas powered computer ! Awesome !
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Old 02-04-2015, 03:26 AM
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Originally Posted by birdbrain View Post
Gas powered computer ! Awesome !
Gas powered computer~~~( ̄▽ ̄)"
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Old 02-04-2015, 06:40 AM
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What do you do for headers? Why is the exhaust port rectangular when all headers are round?
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Last edited by ghoffman; 02-04-2015 at 07:08 AM.
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Old 02-04-2015, 08:34 AM
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Good points Raydar! My initial thoughts...........

1. Who is DJPOWER?
2. Looks like an EME.
3. Motor mount flange is part of the rear crankcase half. If a mounting lug breaks you have to replace the whole crankcase or rear half if sold separately.
4. Choke rod guide on the side of the crankcase is a nice touch.
5. Will the engine spin a 25X8 or 25X10 prop?
6. Quality.......maybe but this is in the eye of the beholder. Who has this engine in service and for how long? Any "real world" data?
7. Walbro carb is good. Who (brand) supplies the main, lower and upper connecting rod bearings. This always seems to be an issue.
8. What does it sell for.
9. Would probably prefer a 70 twin versus a 70 single cylinder.
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Old 02-05-2015, 03:15 AM
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Two reasons

Quote:
Originally Posted by ghoffman View Post
What do you do for headers? Why is the exhaust port rectangular when all headers are round?
Two reasons
1.Die-casting cylinder
2.DA 50 rectangular
DLE61 rectangular
EME60 rectangular
GP61 rectangular
OS GT60 rectangular
JC 60 rectangular
DLA RCGF .........rectangular

DA 60 round
DA 85 round
DA35 round

DJ72 header size are the same with DA 50 etc.... (40mm).
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Old 02-05-2015, 04:36 AM
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Quote:
Originally Posted by Capt. Roll View Post
Good points Raydar! My initial thoughts...........

1. Who is DJPOWER?
2. Looks like an EME.
3. Motor mount flange is part of the rear crankcase half. If a mounting lug breaks you have to replace the whole crankcase or rear half if sold separately.
4. Choke rod guide on the side of the crankcase is a nice touch.
5. Will the engine spin a 25X8 or 25X10 prop?
6. Quality.......maybe but this is in the eye of the beholder. Who has this engine in service and for how long? Any "real world" data?
7. Walbro carb is good. Who (brand) supplies the main, lower and upper connecting rod bearings. This always seems to be an issue.
8. What does it sell for.
9. Would probably prefer a 70 twin versus a 70 single cylinder.
A:
1. I'm DJ engine manufacturer .
2. EME?... Same mould factory, same casting plant, same material, same machining level, even same designers...This is the situation in China.
3. Motor mount flange is strong enough.....
4. Thank you.
5. Yes, Of course.
6.Pls repeat the second line.
7.We use best quality rod bearings....
8. New product released.
9. Same power, light weight, low cost, reliability, width.....
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Old 02-05-2015, 07:27 AM
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Quote:
Originally Posted by djpower View Post
Two reasons
1.Die-casting cylinder
2.DA 50 rectangular
DLE61 rectangular
EME60 rectangular
GP61 rectangular
OS GT60 rectangular
JC 60 rectangular
DLA RCGF .........rectangular

DA 60 round
DA 85 round
DA35 round

DJ72 header size are the same with DA 50 etc.... (40mm).
Thank you for the response. I guess I am confused why die casting makes the rectangular port necessary.
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Old 02-05-2015, 01:17 PM
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Quote:
Originally Posted by Jedijody View Post
Here he is.

your always good for a chuckle.


well at lease the rod and bearing will be easier to replace.
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