Iv been an OS user for years but iv seen alot of ppl use cheeper engines, im thinking about supertiger caus there so cheep and and they seem to have a good review. can anyone tell me more about supertiger form personal experiance, like whats the dif between supertiger and OS besides the name and about half the cost? THANK YOU

There is lots and lots of information on Super Tigre engines in these forums. Do a search and all your questions will be answered.
Regards,
doubledee

I've flown with OS engines and am just now breaking in my first ST...the OS engines seem a little more user friendly, but the ST engines are an excellent value, especially once you learn a little more about adjusting the engine. Owning a Supertigre forced me to become more educated about my engine and, while I was not happy about it at the time, I'm glad that it worked out that way. My ST G90 has loads of power and seems to be running really well now, but like I said, it's a new engine.

Good luck,

Dave

Right on dave i love OS there pricey but u cant beat the great performance and reliability. several years ago i bought one of the os 46 fx and after atleast 7 gallons iv never had the engine to die in flight and it would always fire right up after the first 2 or 3 cranks after setting for weeks (without after run maint), I even ran it with a tuned pipe about the 4th gallon. The engine today has prolly 12 gallons on it and i can tell its losing compression but its still a good engine. Iv just been hard core OS$ caus of the performance, but iv just seen to many pple on the flightline with cheaper brands and supertigre is the most popular iv seen, so for half the prise with just a little less BHP and RPM for the cubic inch im just itching to buy a S.T. You super tiger operators opinions would be very apresiated. THANK YOU

I have a ST 45 and it runs great,I also have a NEW ST 51 and it sucks big time.so I guess ya get the bad somtimes.For the price I would choose the ST.

I have many OS, Some TT and some Jetts. I currently have a ST 45, a couple 90s and a 2300. Unless I am building something special, a Super Tiger is my all around engine of choice. Properly set up, I would stack it up against any OS in it's same size

Super Tigre is NOT a cheaper engine, OS is overpriced, IMHO. ST's have been around for a very long time and have always been good performers. The Thunder Tiger Pro series engines are good as well. More user-friendly than most.

Safe Flying!

I've got a range of them from .40 to .90, all ringed.
Once set up they are magnificent and whats more, don't need buckets of nitro to perform.(5% or less is all they need)
I use Enya 3 plugs in all of mine.
And they do not suffer from peeled liner diease.
A new piston ring and a set of bearings and the engine is ready for another 4 years of flying.
My favourite is the G.51. It is a real powerhouse and stands its ground along side anything OS and TT can throw against it in that class.
But there is a downside and that is that the ringed versions need a long time to run in. Much more than an ABC engine of any brand.

Hi Tonywayne, Pls.take a look at
http://www.kangkeusa.com/Engines/skengines.htm
I have 2 SK .50 and 1 SK .80 ringed.
Im so happy with .50.(. 80 is still in box).Reliable, never deadstick.Very easy starting,easy adjust,cheapest,good care of salespersonel.
I strongly recommend to think of it.

I have one ST, a .45. It's very powerful, and obviously a well built engine. The downside (as others have commented) is that it requires very precise tweaking to get it just right. On my H9 Twist it's difficult to get the right balance on the idle, to achieve acceptable pick-up without the idle being too fast.

One other thing I don't much like is the very short distance between the prop disk and the needle valve. Others may not care, but personally I don't like adjusting a screw that's an inch or less from a one foot blade turning at 12k rpm.

In summary:

pros - good design, very powerful, good price

cons - not the easiest to adjust, needle valve close to prop, huge ugly muffler (though it sounds pretty good in the air)

It's a good engine but I'm not sure I'd buy another one. If I decided not to pay OS prices, I'd more likely look at an OS clone - probably ASP in Europe or Magnum in the US. I'm always hearing good things about them, and I know that over here I can get good support for them from Just Engines.

Matthew

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Hi, Turk. Thanks for reminding me of the two SK engines that I own that are still NIB. This weekend I might get a chance to run the .50. I am looking forward to duplicating your success with the same model and size .50 engine. My .80 is ringed. I don't think they even offer that any longer at Kangke.

SuperTigre engines are excellent value for money if it's a sport engine you're after -- and their after-sales support simply couldn't be better.

The only place I'd be reluctant to use an ST is in a 3D-capable plane where good throttle transition is essential. The ST carbs are still somewhat lacking when compared to those found on OS or TT engines.

It also depends on what size engine you're after -- if it's a 45-51 then you might find the Thunder Tiger 46Pro a better-value investment. I've got several of these engines and the oldest one is still going strong after 200 hours of use, having required only a single set of bearings during all that time.

The ST90 is probably the single best value engine of its size on the market. There's simply no reason to use a .60-sized 2-stroke on any plane these days when the ST90 will fit right in and provide vastly superior performance at a lower price.

If ST would only redesign their carburetors and offer a muffler that didn't look like a trash-can then they would have the *perfect* engines -- in the meantime they're just very good value for money -- which ain't bad.

Last time I was active in the hobby (back in the 1980s) all my engines were OS. Now I don't have a single OS engine -- they no longer offer the same value they did and so many other manufacturers (including ST and TT) are producing products that are every bit as good (sometimes superior) for lower prices.

Now that the OS liner-peeling problems seem to be behind them, there's *nothing* wrong with OS engines, indeed they're still very nice and quite powerful, they're just too expensive for what they offer.

Hi Ed,
Im sure you will love your SK 50 too..Not a screamer but a torque engine,keeps its rev and sound when you load it by pulling elevator full nose up to an unlimited sky.Very,very easy start after a proper prime.So low idling almost not want to stop.Reliable,never gave a deadstick.Good muffler bolt design,didnt feel any loose nut symptom like other mufflers.No complaint though I stuck it several times into ground on full throttle(unqualified pilot result).I am using no nitro,20% full castor fuel with industrial type methanol(means good water in it also),OS A3 plug.11x6 Graupner prop.
BTW,I can still see our SK 80 ringed on their site.Only a small pricing difference.

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I don't know if you did this or not, but whenever running a tuned pipe, you must add another head gasket under the cylinder head. Your engine's short life could have been caused by this omission. I've made this mistake too and ruined a couple of engines this way, long, long time ago. BTDT

In my opinion, the ST .51 is the best bang for the buck. Oodles of power at an economical price, and as previously stated if they start to lose some compression, a nine dollar ring and a quick hone job with 600 grit gets the job done for a few more years of service. I'm currently running a .51 with a Jett Stream muffler (which is much more attractive than the stock muffler), and am able to turn a master airscrew 10x7 at a whopping 15.8k rpm without overheating. And it fits anywhere a 40 size application calls.

ive had a few os engines. they werent what i considered to be a "performance" engine. engines like the super tigers...thunder tiger pro series.....and the asp/magnum engines are my engines of choice.

if you dont want a performance engine go os.......but if you want something that will tear the fork outta ya nightie....go for any of the above listed engines. i personally have a thing for the thunder tiger pro 46 engines as well as the 60-90 ASP/Magnum engines. and yes asp and magnum are made in the same factory....just a different front door


cheers
craig

There are just 2 types of people in the world, those that can tune a Super Tigre carb & those who cannot. If you are one of the type who can you will love the ST. I could not.

Several club members have had problems with the mufflers. Since ST production was moved to china I do not know if the engines are better quality than the Italian built versions. I think O.S. engines are better than ST but not twice as good, if it's half the price it may be a bargain. John. BTW, don't believe everything you read in reviews.

well, i seem to fall into the "cannot tune a ST" category lately. It is a .45 I keep trying to find some advice tuning it, but beyond the basics of tuning any glow engine, and not finding much searching (seems i also fall into the "cannot use the search function well" category. the engine was a used hand me down. wouldn't run for beans when i got it. very hard to turn over. dissassembly and serious cleaning fixed that and made it run quite a bit better, but not reliable still.

myself and some of our very experienced vets have tried with unsatisfactory results. various prop changes. high and low end adj. several of the different methods (lift the nose, pinch test, rpm by ear and tach). checked all lines tank placement/integrity, fuel foaming etc. it was given to me and runs ok, but just not consistent or dependable. I think i have a partial air leak somewhere in one of the rubber parts of the carb. that is getting a rebuild this week to see if that does it.

anyone got any advice or can point me at a relevant thread on the subject? I hate to rehash what has most likely been covered several times before.

nevermind, i found it.

[link=http://www.supertigre.com/faq/product-faq.html#q22]supertiger tuning[/link]

yep, don't forget about the SK!

The only things I don't like about my Super Tigre engines (.40, .45, .90 and G2300) are:
Needle valves. I don't mind the needle being in the traditional position, but the design makes making extensions a pain. Thunder Tiger has the right idea which is now being copied by OS. [&:]
Mufflers. Who designed those things? Obviously not a real Italian. Ugly ugly ugly...[:'(]
Weight. The whole line is on the heavy side.

I love the warranty (3 YEARS!), performance and price. All mine run really well, are easy to tune and have been trouble free.

Supertigre is not a cheapo engine brand. I remember paying $135 for a S.61 ABC from tower hobbies in the late 1980's. They have come way down since then because they are now mfg. in CHINA. To be fair, the quality seems to be at least as good as it was back then. The G-.61 ABC tower sells now is a awesome deal for what you get qualitywise.