50cc vs. zenoa 62cc??

[Brave]

I'm in the process of getting my parts together to stick in my GIANT P-51D MUSTANG ARF. I really don't want to have to skimp on power as I would rather have too much than not enough. The recommended engine size for a gasser is 50cc-70cc in the manual. Have been told by old builders that I should put in the G-62cc and everything will be fine but have heard from one that it will pull the plane apart...... any suggestions??


Thanks
E

[50%plane]

G62

[ULTIMATE1]

Here you go, Revolution 52cc gas engine with scale exhaust from Keleo Creations:

[Brave]

Thanks, that truely is awesome. I bet it sounds pretty good. Do you think a G-62 is too much for this plane?

[pepatrick]

DA-50 is the ideal engine for this plane...flies it plenty fast.

[ULTIMATE1]

No but you will have stuff hanginging out everywhere. If you insist on a g-62 I would go with a RALPH CUNNINGHAM lightened hub and built in CD ignition I would also check out TONI CLARK carberator 90 degree carb manifold page 184 With these two mods you will have one slim and trim great running powerful easy starting G-62

http://www.toni-clark.com/ftp/e-Kat_1_2007.pdf
http://www.tompierce.net/190/html/building/RCign.htm

Specs for the RC Ignitions G62 Conversion
Type:2-StrokeDisplacement: 3.80 cu in (62.0 cc)Bore:1.90 in (47.5 mm)Stroke:1.40 in (35.0 mm)Cylinders: Single - Chrome PlatedEngine Weight
(w/prop nut & washer): 4lb 3oz
(Stock G62 weighs 4lb 9oz)Stock Muffler Weight: 9 oz.Prop Range: 20x10 - 24x8RPM Range: 2,000 - 8,500Fuel:
Gas/Oil mixMuffler Type: Stock or any Aftermarket
G62 MufflerCylinder Type: RingCarb Type: Walbro HDA-48 DCrank Type: Ball BearingIgnition: Electronic – Mechanical Advance or Electronic Advance optionsBattery: 4.8v – 6v NiCad
(500mah or more) Making a great engine better

The RC Ignitions G62 Conversion is a standard Zenoah G62 2-stroke gasoline engine that has been modified with electronic ignition, a custom cup mount with integrated ignition module and a few other minor modifications. The custom electronic ignition module is completely encased in a strong aluminum cup mount pre-installed on the back of the engine.

A standard RCA Audio Cable is used to connect the ignition to your battery. Any NiCad of 500mah and up will run the engine for approximately 2 hours. The ignition will accept a 4.8v or 6v battery source with no regulator required. This engine is available in 2 different configurations, one with the automatic electronic timing advance (as shown), or with a standard mechanical timing advance mechanism.
A custom carb block replaces the stock one to rotate the carb for easier throttle linkage in aircraft applications. Therefore, the throttle linkage is already set up for a straight shot back to the firewall and includes a ball-link linkage pre-installed, ready to go. Another advantage of this custom carb block is that it is only 3/8" thick, about half of the thickness of a stock block, allowing you to squeeze into tighter cowl restraints.
The choke lever is stock and provides for a straight shot out the side of the cowl, unless you decide to modify with your own preferred bellcrank and linkage to change the line of pull. The custom prop shaft/hub can be made to whatever length you require. The average shaft provides a distance of 6-5/8" from firewall to spinner backplate.
Initial observations of this engine is that it appears to be of very high quality as it starts with the bullet-proof reputation of the Zenoah engine line, and is further enhanced with some high-quality engineering and features from RC Ignitions.
At approximately 6 ounces lighter than the stock Zenoah G62 (Magneto), the engine already provides more power to weight ratio than its stock counterpart. Add to that the easier starts and smoother idling traits of an electronic ignition and you have a great combination. Many satisfied customers have made claims that the engine simply runs smoother, stronger and faster than any G62 on the market today.
Here's another big plus with this conversion engine... warranty. There is a lifetime guarantee on all ignition parts and mount, including crash damage! While it does not cover the Zenoah components, RC Ignitions will straighten cranks for $40 plus shippping.

So far I am extremely pleased with what I see and can’t wait to get this engine installed and give it a try. If all goes well, I expect that this could prove to be the “no-brainer” standard for warbird and scale airplanes in the G62 class. And, with the strong power, smooth running and 6oz lighter weight than the stock G62, it is a very serious contender for those flying Sport and 3D planes in the 50-60cc class.

Pricing Information
G62 w/stock muffler and
Mechanical Timing Advance - $500
G62 w/stock muffler and
Automatic Electronic Timing Advance - $525
Convert your existing/supplied G62
Includes mount, ignition and carb rotator block - $175

RC Ignitions Contact Information

RC Ignitions
928 635 2455
Email: rc@rcignitions.com
http://www.rcignitions.com

Launch Web Site

Zenoah is a registered trademark of Zenoah Engines

[ta154]

Last time I checked, that very nice 90 degree carb adapter from Toni Clark would have cost me some $200 bucks landed at my place. Combine that with the cost of the ignition change and the roughly $400 bucks for my G-62 (total about $800!!) and I think there are many other choices you could make for a lot less cash that would work just as well if not better.

[ULTIMATE1]

Hey I was just pointing out things as he seems to insist on a G-62 that will hang out everywhere on that plane yes I agree DA -50 or Revolution 52 would be much better choices and Ralph Cunninham sell his G-62 already done for $525.00 and the carb adapter is $59.95 plus $15.00shipping that's a far cry from $800 plus dollars

[ULTIMATE1]

I picked up a new in the box g62 for $250.00 had the guy I bought it from send it directly to RCIgnitions AND $175.00 shipped to me I had a motor for $425.00

[Brave]

well that sounds like a great deal.... however, I'm not that lucky. I had a builder tell me that he could get the kit that would rotate the carb. and convert the G-62 into elect. ignition and that I shouldn't spent the bucks to have Ralph's conversion. But, yes, if I could find a NIB for that price I would be happy....

[ULTIMATE1]

Check this out $300.00 only one gallon through it http://www.rcuniverse.com/market/item.cfm?itemId=357073

[Brave]

Hey thanks for the post...... will call to see condition..

[hawk21]

Ralph is a member here "rcign" , I flew one that weight like 20# with a us 41 and it really needed more power the rcign g62 is the best option I think

[ta154]

ULTIMATE1,

If I could get the carb adapter to me for those kinds of dollars, I'd already have one.

I emailed Mr. Clark personally for the shipping info. He replied with a very complicated form detailing all the addtional charges involved in sending the intake manifold overseas, including international handling fees, shipping documentation completion fees, order processing fees, special significant charge for cashing a money order at his bank and what all else. Fees, fees and more fees!! There were more hurdles here than in an Olympic race!!

I added up all those numbers. The cost came to just shy of $200. I speak from actual experience, not hypothesis, speculation and dated catalogs. Perhaps things have changed in the last year or so since my query.

My solution was to purchase a different engine for my project. It made more sense to me than trying to make my G62 something that it was not. And in the end, it didn't cost any more money.

BTW, the H9 website shows their Giant P-51 as being a 25CC gas engine size, 80" span plane. Why not just follow the manufacturer's recommendations? Not only would a 62CC gas engine be a bit overpowered, it would be considerably heavier. Lots of dead weight there.

[PROPGIRL]

G-62