snobird

My Feedback: (36)

HELP I have the new Zenoah 2.0 gas engine with about 12 flights on it. All I can get out of a 1500ma battery pack is about 2.5 flights, a 1800 pack is about the same time....Has anyone had the same issues, any ideas ???

R/C Foolish

My Feedback: (6)

I have the same motor mounted on an Ultra Stik Lite, it is a battery pig. Zenoah made a bad choice in ignitions in my opinion. I have spoken to a couple of R/C ignition guys and they are working on an aftermarket replacement that will utilize efficient technology so that we can get more than a few flights. For now, just put it on field charge after every couple of flights.

R/C Foolish

Meesh

My Feedback: (135)

From what I've heard the ignition draws big current. You probably should go to a 3000 maH pack (at least) or plan on recharging every couple of flights. To keep weight down try a 2 cell LIPO with a 5.1V voltage regulator on it.




Bob

JettPilot

My Feedback: (6)

You should have gotten a Zenoah G-26, what were you thinking [sm=bananahead.gif]

The Zenoah G-20 is a DOG of an engine, the ignition system is known for using LOTS of current, so your short run time on the battery is normal for that unit. You will need at least a 3000 MAH battery if you want to fly with it....


By the time you figure the weight of that huge battery, the G-26 is lighter, has more power, and will run forever without ever having to worry about charging a battery So again what was your thinking when you didnt get the G-26 [sm=lol.gif]

JettPilot

Birddog-RCU

My Feedback: (62)

Replace the ignition with a C&H unit. I believe tkg has a G20 and is running his on his ignition and I hear it is a super little engine.

Pelle Gris

Or run it on a 3 cell pack. That will be lighter, and because of the lower voltage that ignition will not draw nearly the same amps. Toni Clark, the German importer of the Zenoah engines, recommends that you run the ignition on one 2050mAh Lipo cell.

Go to www.toni-clark.com , and under the "News" header you can download the instructions as a *.pdf file.

Whistling Death

Deleted

Antique

My Feedback: (4)

I bought one of these to check it out...First off, it's not a dog, it has HUGE transfer ports for the size of the engine..The parts are the same high quality as all the other Zenoah engines, none better....Like I suspected a while back when it came out, it was not made just for airplane engines, there are too many tapped holes in the case, and the crank is threaded on the back side...Red Max has a new lightweight 21.6 cc weedeater, probably the same engine with a magneto ignition...
The bore is exactly the same as the G23...The piston from the G23 has a longer skirt and is longer from the wrist pin to the top, so it won't drop right in...Mine will be machined for the same length skirt and slightly relieved at the top to make the compression as high as possible..The rear crank will be cut flush with the bearing and a sealed bearing used in place of the rear seal, cuts down a little on the seal friction...The hub will be changed to lighten it up a little and C&H ignition will be used with a different sensor holder, a machined ring pressed on the front of the case like my G26 conversion..
The carb block will be made like the G26 conversion part, it's a little thinner than the stock part...The finished product will be a little lighter and will run for 2 hours on a 2 ounce NiMh 850ma battery....Should be a fun project, it's just now being taken apart for the mods..Didn't run it stock.....
Looks like the fins could be turned a little smaller, but we'll see what the weight is tomorrow....

R/C Foolish

My Feedback: (6)

Ralph,

Let me know when you are ready, I will send mine to you for the mod. I really liked my G-26 you did for me until the firewall came off and the motor was lost in the swamp behind our field.

R/C Foolish

Whistling Death

Deleted

Antique

My Feedback: (4)

Update, I downloaded a parts manual for the lightweight weedeater, it's not the same engine...It's called a G20LS, but the cylinder is different...
Looks like under 2 lbs, depends on what the C&H ignition weighs....
Update 2...All parts on the scale weight 28 oz....engne, spark plug, carb, prop bolt and washer, ignition circuit, coil, no muffler....It would be a little lighter without the backplate mount if mounted directly to the firewall using the 4 plate mount holes....
The case will have to be painted to keep the bare magnesium alloy from oxidizing...

snobird

My Feedback: (36)

Hey, thanks for all the input...I have the engine in my Hanger-9, P-47. fits right in without a problem using the stock muffler, and it has lotsa power and really hauls ass,with a 14/8 3 blade, I'll try a Lipo and report back, thanks again... and it's not a dog..........

JettPilot

My Feedback: (6)

Yes, its a dog, You have the same weight, less power, than my G-26... My G-26 runs all day and you have a two flight limit - If that does not qualify it as a dog then you would not know what a dog was if it bit you in the ass [sm=lol.gif] Some guys can just never admit they made a mistake [:'(].

Im sure it will be a fine engine after RCIGN is done with it, but as it is now , the Zenoah 2.0 definately a dog.

JettPilot

Whistling Death

Deleted

karolh

Zenoah has always had an enviable reputation of getting it right the first time, and maybe this time they slipped up with this seemingly power hungry ignition system.

Rather than lambasting the product, why not just continue to enjoy your G26 and leave others to enjoy their G20's without your negative comments.

Tell me, can your G26 fit in a 60 size model like the G20 can

Karol

Antique

My Feedback: (4)

They pretty much got it right this time too....
First off, there is no way to compare a stock magneto G26 to a EI G20...If you want to compare same to same the G26 needs to be converted to EI...
Converted G26 with battery but no muffler, 40 oz, 17 lbs thrust..
G20 with my C&H EI conversion, 30 oz with battery but no muffler, 10 lbs thrust...Looks like I took off 3 or 4 ounces of weigtht by removing all the casting bosses and tapped holes for whatever application the engine was made for...I used the prop hub from an early G23, slightly shorted and lighter, and a 6mm bolt for the prop like the old G23 had....
The G26 is quite a bit larger than the G20....
Both cost more than they should, but the Chinese will clone these and the price will go way down....

JettPilot

My Feedback: (6)

Your post explains exactly why you are dead wrong. You are NOT talking about facts or performance. You just get emotional and either "like" or "dislike" something. Im just a little smarter than the average moron out there, I look at the FACTS and make a choice.

The Zenoah 2.0 is HEAVY with the huge battery needed to fly it, almost the same weight as the G-26, so dont tell me its going to work well in a .60 sized model, with the weight of the battery, foam, etc. etc. its darn near as heavy as the G-26, so they are a fair comparison.

Posted by someone here a couple days ago -

" I've have had at least 20 dead stick landings in a Funtana 90. I stopped all the dead sticks by making sure the 2700 mah batteries are fully charged every two flights but most of all by using the idle stop screw to set the idle not the radio and i am now converting to a C H ignition to help with battery life "


With a G-26, For almost the same total weight, you get 70 % more thrust AND it runs all day, trouble free. Those are the FACTS.

Im sure RCIGN will make a great engine out of the 2.0, but right now the reality we have is the Zenoah 2.0 that is sold by Horizon. And it does not take to much brainpower to figure out the Zenoah 2.0 you can buy now is a DOG.

JettPilot

JettPilot

Whistling Death

Deleted

tkg

My Feedback: (1)

Jettpilot, we all know how you feel about the G-20 question is how many other Zenoahs you own? I have several and each has a plane that matches perfectly. The G-26 is a way good engine but it WONT fit in the plane that has the G-20. SO find a new drum to beat cause we're tired to this one.

JettPilot

My Feedback: (6)

Zenoah 2.0 + Big battery 3300 MAH or more + Ignition Etc = Same weight as Zenoah G-26

Zenoah G-26 = 17 pounds thrust with NO issues

Zenoah 2.0 = 10 pounds thrust and limited to 3 flights as described above.


Anyone who says Zenoah 2.0 is not a dog... = Stupid [sm=bananahead.gif]


JettPilot

karolh

The last time I checked a dog had four legs and fleas

Karol

Whistling Death

Deleted

arobatx

snobird....if you are even still reading this thread, please just PM Ralph (rcign1) and discuss the investment of having him convert you to a lower draw CH ignition. Odds are while he has it he can help a little in the weight department too. Don't worry about the rest here...a G20 isn't a G26, just like the G45 isn't a G62 (both scenarios offer an approximate 30 percent difference in displacement), you are doing just fine, enjoy the engine and have fun flying!

Antique

My Feedback: (4)

A G20 with an older C&H syncro ignition weighs 29 oz with the ignition and a small 2 oz 850 ma battery...This is without the muffler and would be a lttle less without the mounting plate.....Should run for over 2 hours with that battery....
A similar G26 weighs about 40 oz....
I changed the sensor mount and hub, see below.....
The overweight underpowered dog on the left turns a Majzlik 18-6 at 9300, the one on the right turns the same prop at 7900...No muffler on either one, 6800 feet altitude, 55 degrees, 32-1 fuel...TNC tach....

tkg

My Feedback: (1)

Jettpilot, let me see if I have this right.... Anybody who HAS a G-20 and who disagrees with you, who DOES NOT HAVE ONE, is stupid????
That about right???