I'm in the need of a 50cc gas motor for a new project and would like to try one of the budger imports. I have seen the DL-50, XY-50, SFE-50, MT-50, SV-50, which one is of the best quality , and most reliable?

This is a subjective answer and will start world import engine war #972. Based on power and internals, the DL. Now, how much did you want to spend and is service a consideration for you? For most of those looking at the bugger imports, cost appears to be the larger qualifier. If you want the best quality and value you'd have your eyes on engines here on the home front.

seems rcu loves the dl

I dont want a disposable engine or one that's stays torn up more than flying. I have a DA-50 now and like it just fine , but if I can get similar results for $ 400.00 instead of $700.00 that's what i'm after

Sounds like you are describing the DL.

how about a poulan mine will hange with all 50s

I agree...for the $300 savings...I can put up with tuning the dl..ect myself. Capt,n

Is the 3mm 53cc an equal or a close second? to the DL ?

Second in output...for the moment. It's definately heavier. However it is a quality engine with at least three U.S distributors. Wild Hare, Dawghouse, and Cermark.

Unless you just like the back and forth interaction .... then save yourself anymore wasted time. Buy yourself a DL-50 and be done. This can go on for days or weeks, but theres just one logical solution from what you described, and that's the DL-50. Sneaky suspicion you already knew the answer. Hold you head high! ... you won't be the first DA owner to recognize! [8D]

Thanks to all you guys for the helpful info. I will be the first guy at our field to purchase and run an import engine and am sure i will be treated as a traitor , for not sticking with DA . You should have heard some of the comments so far, just for saying I was going to buy one. LOL

A few of us Americans still have to work for a living.
ALL auto makers buy stuff from the CHEAPEST place they can.

That has ALWAYS been the American way.

You may be able to fool the DA crowd into liking you if you spray your DL with some chrome spraypaint.

I vote "homefront". Brison and Brillelli. They may not be as cheap as the DL. But you will make up for it with a reliable motor with no deadsticks and a shiny plane in one piece on the ride home. Not to mention helping keep local boy's in business.


3DAP

--------------


Of course they reacted that way. They were proud peacocks with their expensive engines. They were members of an exclusive club. It didn't matter how they flew, or how they built. They were top notch DA engine owners - an exclusive crowd. Now you come along with a cheaper engine that runs just as well as their snobby expensive engines and they either feel like a fool, for overspending, or they snub you for betraying them.

I've gone through this snubbing process many times in my life. Believe it or not, the first time was when I showed up with a Fox engine, when everyone else was flying the el cheapo McCoy .35 slag engines. I won't bore you with the rest of the times, even though some were very funny.

I tend to think for myself. Yes, I make mistakes, but I'd rather make my own mistakes that simply follow the rest of the herd just to be safe. What fun is that?

I bought and received an SV26 a while back. I already had a Zenoah G26 converted by Ralph Cunningham to EI, a stock Zenoah G23, an Evolution 26GT Mk.1 and several other engines in this size range.

Ditto the 50cc DL and a Zenoah G62 reworked by Ralph Cunningham and several other engines in this size range. But I did buy (on backorder) the SV50cc engine a while back. They run. They are good enough for planes that don't require 3D performance. Are there better engines? Of course, but I haven't won a huge lottery lately and I'll probably sell these planes with the cheap engines after one hundred or so flights. Maybe less. There is no advantage in buying and installing a more expensive engine. The cheap engines will do the job perfectly well and I am not losing a fortune when I sell them as used.


Ed Cregger

this is what our locals noticed the dl50
after hovering for a prolonged peroid of time ---- >90 seconds it started sagging
with power loss
did you guys have this problem
thx

Maybe overheating is the reason. I have my dl50 still running in and didnt hover for so long but overheating is the only reason that comes up my mind.

We have six DL50s now and have NOT noticed that..
Be sure you are not to lean... Walt...

Hovering for 90 seconds...............now that sounds like fun. [&o] Well, OK, maybe it would be....................if I could do it for more than my usual 0.9 seconds.
I don't know squat about gassers.............yet, but intend to learn this spring. Your post kinda brings up the point that some of these engines might not work the best under all conditions. I'm more interested in IMAC type flying which may put less stress on an engine, so some might work fine, where they wouldn't perform as well for hard core 3D.

Jim

Tank location does have a small effect on mixture despite the carbs pump and regulator. An engine will lean slightly when the tank drops a foot below it, as it usually does in hover. The sagging engine was probably too lean to begin with.

All my sags were due to too lean of a mixture with a tank too low when the plane was held vertical for a minute.

Back then I always installed a Varasane fuel pump to cure everything bad.

Rich

You DO definately have PLENTY of air in & out ? Over a minute at full power can be not enough air also.

This is interesting as far as how much hype these MT 50 engines are getting. People are getting excited because it is something “New” in the market hoping that it will be something different. Well, I did some research on the engine and the manufacturer (Tomy RC) and I found that all he has done is machine the casing. In fact the rest of the parts come out of the cheap Chinese moped type bikes. There is no innovation here other than assemble part together. As far as some of the claims that I have been reading about aerospace quality materials… Yeah! The claims on some of the advertisements that are out there say that this engine was specifically designed for RC in mind. Perhaps assembled, but not designed.
At this point I am already skeptic since some of those BOLD statements have been disproved. Take a look at the following links and you be the judge.
This is the head of the engine. You can see it at this link http://www.scooterparts4less.com/web...ylinderKit.htm
Look at this engine! Does this look familiar?
http://www.pocketbikeparts.com/Photo...ode=CGEN302226

The cool blue looking head is nothing more than a choice from one of the yellow, red, or silver heads offered in a mini bikes upgrade kit. You can find this at this link.
http://www.pocketbikeparts.com/product_p/cgcy302100.htm

As you know the MT 62 is nothing more than a G62 on an electronic ignition conversion (nothing special)
The MT-42 is I have been told that it has tons of vibrations and the back plate that mounts the engine on an airframe eventually shears and shatters in multiple pieces. You can imagine what can happen to your model if you fly one of your planes with this thing….
As far as the service I understand that some gentleman that has experience in fixing engines will be doing the repairs (Cunningham), but from what I understand he has reached a retiree age. He might be working for a couple more years, but I wonder for how long in the long term? How long do you think the long term service will be?
The MT 50 seems to have some serious twisting moment potential concerns due to the way the head bolts on the casing. Those long bolts and how they attach to the rest of the setup might introduce twisting and shearing moments especially after the head will reach operating temperature. Especially when the head will expand due to heat, the bolts will apply asymmetric force ultimately distorting the head. I wonder about the long term reliability on this engine.
As far as the MT-57 so far as for what I have seen and read it seems that it has some good potential, but it is too soon to make a judgment call since it has not been in the market yet.

IN OUR DEFENSE


We made no claims that we are using any aerospace materials in our manufacturing of the engine.
How many bikes have you seen with our engines in whole on them?
Milton has tested and sold the MT42 with no problems with the engines
Milton has tested and sold the MT 62 with no problems with the engine
Milton has run tests on the MT50 and it did not meet with his expectations and gave up early and went on to another make 50cc engine.
We got the MT50 engine and although it is of fine quality, in material and workmanship it needed to be fine tuned to get it to perform.
We started with 6200RPM out of the box and with changes in tuning we have it at a respectful 6850RPM with a Vess 22A prop, getting stronger with being broken in. There IS NO ISSUES WITH THE LONG BOLTS!!!!! After having run 3 gal. of gas. Running up to temp stopping to cool and repeat cycles, of hot to cool many times. After sufficient time I can see it turning a reliable 7000 RPM. with a 22” prop.
There was an issue with the MOUNTING PLATES on the MT42 and they are being replaced with a new material. Broken plates can be from many factors, some being the fault of the person mounting the engine.
Milton has some new plates coming his way to replace any bad ones.

There is a difference between having a problem with a product and having a problem and DOING SOMETHING TO CORRECT IT.

Every engine out there has had some type of issues with them in the infant stages, the difference is taking care of the issues and going on.

Until we are sure that any issues that come up with our line of engines we will Check EVERY ENGINE before it goes out the door. This will minimize any problems and also remember we are selling on a MONEY BACK if not satisfied basis.

Ralph Cunningham has had our engine for over a week and is testing and making recommendations, when he is complete with his findings he will issue a report. So far all his feedback has been favorable.

Remember we are a phone call away for support when you buy from us.
Questions before you buy will be handled by e mails. Feel free to ask.

Larry LS PRO ENGINES

AIRBORN RANGER

I am about to enter in the wonderful realm of the gas engines. I am looking for an inexpensive yet reliable 3d capable 50cc engine. Of course, I've read a lot about how good the DL50 is, however, here in Argentina, the -gf50 I- is also being offered and it costs considerably less than the DL.

My question is, does anybody know anything about this engine? Thanks in advance.