PlaneKrazee

My Feedback: (14)

Are you sure the 33 is made there?

guille2006

Yes!!! why to doubt?

mbinkley

FYI this is for the US guys,

Here is the e mail I sent to Topdog I had responce in less than 1 hour.


Hi,

Do you have the new mintor 33 cc engine and if so what are they selling for
here in the US.
Will you also have tuned pipe from Mintor to fit. Also what air frame do
they fit in?

Thanks for the info

Hi Mike, we should have them at the end of this month. Mintor has closed for
most of the month of August for summer vacation. They told me they would
ship when they get back. Not sure if there will be a canister for it or not
yet. The engine come with a muffler. As far as the air frame it should fit
on any 28cc to 30cc size airplane.

Sincerely
Blaine Austin
President, Top Dawg Aviation
www.topdawgaviation.com
832-477-4842

guille2006

They're not closing for so long; I was told some weeks ago they are having some problems getting enough carburators for the actua demmand... Anyway; normally Italy stops everything for at least one week around Aug.15.

TimBle

correct insufficient carbs was the reason for the delay.

The carbs seems to be similar to the unit usedon the DLE engines so as far as the working bits is concerned (carb and CDI) it appears on the surface that tried and tested parts have been used there. It does not look like Mintor triedto reinvent the wheel.

In fact looking at my DLE20 and the Mintor 33 side by side, the carbs are identical. This is a good thing

So I guess the head, block, crank an reed valve assembly is manaufactured in Italy mated to RCExl CDi and whatever that DLE carb is.
This is going to make setting it up easy and replacement parts easy to come by.

Yes in Italy there is one common week where nothing is done at all. Thats the 3rd week. BUt most factories close for two working weeks over the period.

jedijody

My Feedback: (1)

MTK

More news from the US distributor than I got in the past 2 months of trying. I'll send another email

wingburner

My Feedback: (17)

Mine will be here by Friday.

apalsson

My Feedback: (1)

Beautiful photos!!
Does anyone have actual performance data yet, or are the engines too new?

mbinkley

In the u tube video guille2006 said it is a walbro carb

clivemc

Hi Ari, just got them on friday, hope to run one myself soon, but i am sure some others might get to it first.......

guille2006

Thanks Jedi; that's I needed to understand...

more questions soon... ugh!!

TimBle

Theres a Walbro on the MVVSsitting on my desk. It looks nothing like the carb on the Mintor.
The carb on the Mintor bears more than a passing resemblence to the carb on my DLE20 and its the spitting image of the carb on a DLE30.

In the DLE20 thread its been mentioned that the DLE 20 carb is not a Walbro either.

guille2006

Marks on mine clearly states: WALBRO

TimBle

no Walbro on mine but there is the letters "MP" embossed behind the needles which are also marked "H" and "L".

I wonder if they sourced carbs form different suppliers to meet the demand?

guille2006

They are mounting 3 different carbs.; i don't remember the other two ones but obvisouly Wlabro is one of them.
BTW; yesterday i called Mintor; they told me "we have no more 33 to sell!!!! We sold them all faster that we espected!!"
God for them!!!!!!!!

TimBle

ok Thanks, so that clears that up then.

I guess time will tell which carb they settle on.

clivemc

tim

you are quite correct, the markings on the carbs are just so Mintor can keep track of which carb was from which supplier. They are all the same carbs, just marked according to the source they came from. looking forward to seeing some results here guys......

TimBle

Hi Clive,

ta thanks for that. I'm quite comfortable with the carb situation and glad that mine is similar to the unit on my DLE20. More common parts means less spares I need to keep around and I know that carb quite well now so all good from that front.

Going to try and get it up and running soon.
Mintor asks for 2% oil content. Is that by volume or weight. I am assuming by volume That translates into RC english as a oil ratio of 49:1

Is this engine happy with a ratio of 32:1 ? I am using this ratio in my DLE 20 and I don't want to keep too much petrol in the beer fridge out back.
Also don't want to get this wrong as its a fairly beautiful piece of engineering and is undeserving of life as a paperweight.

wingburner

My Feedback: (17)

Received mine yesterday...Of course it's a work of art like all Mintor engines...Mine has a Walbro carb on it and included another throttle arm in the accessories...Hope to bolt it to a plane or test stand this weekend...I have a Syssa 30 and DLE 30 I can compare it too.

Tired Old Man

My Feedback: (1)

Ever seen what most cast rc engines look like after prolonged exposure to moisture? They all look pretty ratty over time. An advantage of raw aluminum is that it "auto clads" itself when exposed to atmosphere. Has anyone ever noticed how bare aluminum aircraft and truck fuel tanks only turn a little grey if left unpolished?

TimBle

you're right TOM, machined aluminium does tend to build up a protective oxide layer that protects from further corrosion. however there is little technical benefit from casting or machining. Both processes have pro's and con's. The choice of machining or casting is largely decided by whether there is a foundry nearby or a machine shop to supply the head and block. High volume lends itself to casting while smaller production runs suit machining. There's also other reasons. A completely separate topic that warrants more than a few pages

MTK

Castings still require final machining to make them useful. I don't think that was the point. As far as protective Aluminum Oxide layer is concerned, it matters none at all if one deals with a cast, forged, extruded or machined part. The protectice oxide forms extremely quickly on all ally surfaces.

The problem with poorly done castings is that the metallurgy proportions may not be optimal or the mixture blended well enough before the pour. Also, poorly done castings often will be porous and weaker than other techiques of manufacture. I think that's what TOM was alluding to and he is on the mark

MTK

Well, it is around 2 PM Eastern Time and it's been just about 24 hours since I emailed Top Dawg. No Response, just like all the other times of contact. I am obviously interested in the engine but this guy is not interested in my business....what else can I conclude

Tired Old Man

My Feedback: (1)

I think people will find that Mintor machines their engines because they WANT to and maintian better QA at the same time. Their location has many opportnities for manufacturers that do castings.

None of our engines maintain any kind of decent external appearance when exposed for a few months to a salt air environment. Relatively pure aluminum fares much better. Good enough for the U.S. Navy to construct very large aluminum vessels and sail them in an ocean environment without benefit of a protective coating. Long term exposure to a fresh water environment is harder on the cast engines than a more pure form of aluminum. From an external standpoint any of the cast or aluminum products will suffer pitting from the corrosion process. Internals are pretty well protected by the two stroke oil.

Basically what I'm saying is that people shouldn't get hung up on what happens to one type of engine or another when exposed for long periods of time to the elements. Most all corrode, as do the cast glow engines. If people have not experienced this with their glow engines it's simply because they haven't left it exposed for as long as they did the gas engine in the same environment. More often than not someone forgot to put the weed wacker in the garage before the rainy season started, left it out all winter, so they think gas engines are worse after they see it several months later. Next time leave out the plane and see what happens.