|171 forum posts|
I have now decided on getting a 30cc petrol engine for an Wots Wot XL. I know the Wots Wot is designed to fit the OS 33 petrol engine and that is the way I was thinking of going .I know OS are a good engine and are made well but an OS 33 petrol engine is about £350 Is it better to go for a quality engine and pay the price or are you paying for the OS name and would it be just has good going for the cheaper petrol engines ie the NGH or similar that are half the price of the OS engine ?I would rather have pay the price and have a good reliable engine then buy a cheap one and regret it
|extra slim||30/10/2017 16:59:03|
|448 forum posts|
DLE are good I find, and EME seems to be a popular recent choice. 35's.a few club members are really happy with them.. as these sit somewhere between the OS and the NGH types price wise..
|Geoff Sleath||30/10/2017 17:03:19|
3374 forum posts
I think something to look at with any petrol engine is the cost of an efficient silencer. I don't know if OS supply a decent one that actually silences but I know I had to pay £90 a few years ago for a Pitts style silencer for my 30cc Mackay 2 stroke which is actually acceptably quiet. It's a good engine, too which runs well once I'd sorted out a new ignition unit (from HK) which is probably the reason the previous owner sold it on eBay.
Compared with things like chainsaws etc petrol engines on models get almost no use. Even an enthusiastic flyer won't be running an engine for several hours a week like a professional tree surgeon might.
|john stones 1||30/10/2017 17:14:23|
10605 forum posts
In a nutshell, buy a DLE, been around a while now, very popular, why's that. Which is best ? define best.
|bert baker||30/10/2017 17:36:34|
1423 forum posts
I have two DLE 30's, never had any problems with them,
|Piers Bowlan||31/10/2017 08:18:20|
1871 forum posts
It will probably be one of these, once it is in production. (Hint, Hint, Jon) Meanwhile we can only dream!
|Rich too||31/10/2017 08:38:20|
3033 forum posts
|Jon - Laser Engines||31/10/2017 08:53:32|
|4802 forum posts|
|1220 forum posts|
The biggest thing to think about is suitable silencing, as the corned beef tins supplied with most 2s petrols are only good for the bin
|john stones 1||31/10/2017 09:50:32|
10605 forum posts
Buy whatever you wish, dream till your hearts content, in the meantime there's plenty of good petrol engines about, don't believe me? read peoples opinions that are using them, look at all the video of models being flown by them, recall the models being flown at shows/clubs already with petrols in, we've seen it with our own eyes, read the blogs on here by lads who are very capable modellers using what's available already. Laser are bringing one/some to the market ? Good, that's more choice for us.
|Engine Doctor||31/10/2017 10:12:33|
2302 forum posts
Loads of good usable engines out there . For better power buy a rear carb with read valve like Dle or a front induction type like Moki /McKay engines. OS petrol engines have had their problems as well even with the associated high prices .The front of rear carb is easier to fit in the cowling . Side port engines like zenoahÂ are pretty indestructible with good quality materialsÂ but are generally old fashioned heavy designs as used in garden tools etc and the carb sticking out the side makes almost as muck noise as the exhaust. As already said in previous post silencers are a problem with petrol engines and most far east made types have rubbish silencers supplied so budget for a decent silencer something like a Krumsheid . Not cheap but they are very well made and do work.
|John Emms 1||31/10/2017 10:49:00|
|233 forum posts|
I think there is a very clear difference between the industrial engines designed to run for hour up on hour like Komatsu Zenoah (I have one), and the lighter engines designed to produce maximum power for our use.
The people I know who are using OS are very pleased with them, the supplied silencer fits easily into most models, and is VERY effective, but should anything go wrong, it is going to cost. Interesting that the Czech distributor sells considerably more OS, than the Chinese range that they also distribute.....
Having worked with MVVS, I have no hesitation in saying that for a new engine, I would be looking first to MVVS, or perhaps looking for a used, but cared for, MVVS/older generation Evolution. The factory support (also in the EU, so there is free movement) is excellent should that be required, and does not cost an arm and a leg!
Unfortunately Krumsheide did not work for one of our customers, and caused me considerable agro - if only he had used the MVVS pipe designed for, and tested with, the engine he bought........
|John Emms 1||31/10/2017 10:52:52|
|233 forum posts|
ROTO are also absolutely top notch, but can I make a correction to my last post?
I NEED the Laser 180 Petrol!
|Rich too||31/10/2017 11:08:45|
3033 forum posts
I am running both the OS33 and the DLE 30 and there is nothing in it for me. I got the OS33 from a forum member for a great price - I would not buy one new, over a DLE 30. I am currently running DLE 20, 30, and 55 - all great motors.
|36 forum posts|
I have a dle30 in a acro-wot xl and eme35 in a wots-wot xl, i don’t have any problems with either. They both haul the planes around effortlessly
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