DarZeelon

Chuck,


This engine review can still be accessed through the Morris Hobbies web site.

You can view it [link=http://morrishobbies.com/old_page_orig/reviewQ500.htm]here[/link].


It was done over four years ago and the engine no longer even looks like the photo in Clarence Lee's article.


In those times, Morris would replace the bearings in those engine with a phenolic retainer, high speed set and I believe they issued the test run info.

Today's Quickie engines come ready with the Swiss, phenolic retainer, C4 bearings and with the dedicated, 9.5 mm #3219Q carburettor.
They do not include any performance certificate, as they come from Brno, Czech Republic.
The manual states 20/80 fuel and 15% nitro isn't even mentioned.

The performance is still as good, however.

Ed Smith

I did not actualy hang up the phone, I was not going to be drawn any further off topic than we had already gone.

However, the following quote is worthy of comment
With a 9.5mm carburettor the engine is not even legal for Q40 or Q500 AMA events. The max dia for those events is 9.0mm. So I wonder what Quicky event it is aimed at.


And another thing, while I am at it
The Oxford dictionary defines castOR amongst other things, as a swiveling wheel on the end of table, chair etc. etc. legs. It does not mention "CastER".



Ed S

der_steuermann

My Feedback: (2)

A buddy of mine owns the actual MVVS Q 500 engine (with newest carb of 9.0 mm ID).

DarZeelon

Ed,


Please note what Webster's has to say [link=http://www.webster-dictionary.org/definition/Caster]about caster[/link].

...and [link=http://www.webster-dictionary.org/definition/Castor]about Castor[/link].


Strangely, castor can be used instead of caster, but not vice versa.

In any case, using 'caster' to signify 'Castor oil' would be incorrect.

Ed Smith

Webster's??

I went to the original!!

Ed S

jaka

Hi!
The MVVS Q-500 has a 9mm carb not a 9,5mm carb.
I have run (competed in pylonracing ) several of these engines running 80/20 fuel (20% castor oil) and used either APC 9x6, 9x6,5 or 9x7 props.
Rossi 6 is the prefered glowplug running this fuel.
Hope this helps to get you started.
Regards!
Jan K
Airracing products
Swedish MVVS distributor
http://hem.passagen.se/airracing

bob27s

My Feedback: (19)

Race noted that he would rather the $189 as compaired to the $230 sport jett

For quality, workmanship and performance, I will grant you that the MVVS engines are excellent products. I too owned one of the early MVVS Q-500 engines. Ran very well. Outperformed the Webra .40, and could keep up with the SJ-40 at the time on standard race issued Omega 15%. At the time, the exhaust system left much to be desired, and was its weakest link. Morris does a pretty good job of supporting the products in the US. I'm sure the canadian and european support is just as good.

However, consider this..... (to get back to the price aspect)
for an extra $30 or $40 ...... the engine owner can actually speak to or directly email the designer/manufactuer/builder of the engine, get accurate first hand information...... plus have a outstanding performing engine (SJ-46 for example for sport use)..... with an excellent exhaust system and leak free needle valve...... all provided with well documented operating and break-in instructions.

and..... as a result

this post would probably not have been necessary, or could have been answered fairly easily

For many, price is only one measure of the value of a product.

Bob

RaceCity

Hello Bob!

Don't get the wrong impression. If price were my sole consideration for an r/c product...I'd be running
cheap Chinese engines made from melted down beer cans. Since I don't race airplanes...my priorities are
different, but not in any way lessened.

Anyone can communicate with the folks at MVVS...it's affords a great opportunity to practice up on one's
Cesky, and use foul sounding words with absolute impunity. <GGG>

And for what it's worth...the last time I went to the LHS and asked the lady at the desk if she wanted to see
my Vyfuku (muffler) she slapped me and called the police. What's a guy to do?

Let's just go out and fly...enough of this crap already.

PS: Does this mean my warranty is automatically voided if I ever did buy a Jett?

<GGG>

'Race

ChuckN

Hmmm...I guess the latest version of the MVVS Q-500 engine isn't a Q-500 engine afterall! What's up with that!
Maybe Q-500 is special code in Czech for something else? Like special agent 007?

Oh, forget it! Let's fly!

bob27s

My Feedback: (19)

Race........

I think what that means is your warranty is automatically extended by a factor of 2

Dewey2

My Feedback: (24)

OK so i need to get 0% nitro fuel with at least 20% total oil content with at least 8% being caster or Castor oil no body within 75 miles has anything under 10% nitro fuel i can get klots oil if i can use cool power anybody have any nitro remover how can i tell if mine is the hi nitro version i have a engine smart Friend if theres some numbers that can tell

Ed Smith

If you purchased the engine from a hobby store or direct from the distributer then I would suggest you contact them first. I would guess either of those should know what they sell. If it was purchased from an individual and he does not have an eastern European sounding name then a good guess is that it is meant for the US market.

If the lowest nitro fuel you can get is 10% then run it on that. You will not harm the engine. Some time ago, on this Forum Dar Zeelon gave a full description of how to break in an ABC engine. Follow it and you can not go wrong.

Ed S

Rudeboy

Dewey2

My Feedback: (24)

ok i got it from morris hobbies i'll give'em a call and see thanks

DarZeelon

The thread illustrating the break-in procedure for tapered-bore engines, like the MVVS Quickie, can be viewed [link=http://www.rcuniverse.com/forum/Tapered%2DBore_Engine_Break%2Din_%2D_Upgraded/m_1850473/tm.htm]here[/link].

If the MVVS Quickie engines sold in the USA include a low compression head, specifically for use with 10-15% nitro, you can use such fuel, but only after verifying it contains at least 20% oil, of which at least half is Castor oil.

I know some would not agree with me, but I believe high performance engines should not be run with low oil fuels.

Even YS will void your warranty, if you use less than 20% oil and ABC engines, lives long and safely with Castor oil.

Dewey2

My Feedback: (24)

OK can i add Castor oil to cool power fuel. which brand is best to add. i think cool power is 16% oil so i would need to add about 3.1/2 ounces of Castor to it or how much .i can use the extra oil in all my two strokes alright can't i

DarZeelon

Dewey,


Adding Castor oil for a balance of 20% total oil, will solve this one problem.
But with the oil in the fuel being currently all synthetic, only 1/5th of the oil will be Castor.

You may get away with this, unscathed, but I would not recommend any less than half of the 20% as Castor.

Morgan also produces the Omega (red) fuel, which already has 30% of its 17% oil, or about 5.1% of the fuel as Castor oil. Adding 5% to this fuel will bring the total oil to 22% and the Castor to 10%, which is a good, safe fuel.


Did you already buy the Cool-Power??? Exchange the sealed containers for Omega fuel.

Dewey2

My Feedback: (24)

ok i will have to order the fuel online. no hobby shops here anymore i got the last of his coolpower stock. who has the fuel in stock.

vulpina

Hello all ,
Thats a very interesting discussion here , i just got myself a mmvvs Quickie to day , i will use it on a DDust .

I bought the mvvs tuned silencer 3249 rear exhaust , i wanted to know if its needed tu tune it , if yes what lenght ? or just use it with the stock header as it come ?

Thank you !

DarZeelon

Vulpina,


The #3249 tuned silencer is effective between 10,000 and 15,000 RPM.
At this RPM level, the Quickie doesn't even think about waking up.

You need the #3246 tuned silencer, dedicated for the Quickie engine, which you can use with the rear header, #3262 I believe.
And you will need a small prop; no more than 9x6, but preferably smaller.

You will only be very disapointed, if you try to run the #3249 tuned silencer, as it comes.

Top-Model will gladly advise you further.

vulpina

thank you very much i just called my hobby shop and i will get the right one !
PS : if i understand right i can use a 9*7 prop for break in and flying ?
I will use 5 % nitro fuel ,and synthesis oil , is that good ?

DarZeelon

Vulpina,


To perform the best break-in, follow this [link=http://www.rcuniverse.com/forum/m_1850473/anchors_1850473/mpage_1/key_break%252Din%252Ctapered%252Dbore/anchor/tm.htm#1850473]break-in thread[/link]. It is much better explained than in the MVVS manual.
You must be able to determine by sound, if a two-stroke engine is operating in two-cycle mode, or in four-cycle mode.

Although you live in France and better quality synthetic oils are available to you (Motul Micro, Sachs Aerosynth II/Aerosave), the break-in is best done with degummed Castor oil.

MVVS actually tells you to use only Castor (Ricin) oil, for all their engines.

I would recommend using a 9x6, or an 8x8 prop for break-in.

The 9x7 offers more load, so it isn't as good for this purpose.

jaka

Hi!
I am the Swedish importer of MVVS engines (for more than 10 years) and I have been active in pylonracing for many years using these engines.
The Silencer you have bought isn't going to work properly as it only functions up to around 15000 rpm and the MVVS Q-500 engine develops its power alittle higher up at around 16000-19000rpm.
Instead you should get the No 3246 minipipe. This is made to work from around 15000 to 24000rpm.

Best prop if you want to go fast with this engine is a 9x6.5, 9x7, 9x6 or a 8.75x7 APC prop.
If you run FAI fuel (80/20 castor based fuel) then use a Rossi 6 glowplug (rather cold plug), it will give you more performance than lets say a OS 8 or Enya 3 sport glowplug.

It is very common here in Sweden to run 10-15% all synthetic oil in the fuel...it must be in France to I suspect?!
I run 15% Motul "Micro" all synthetic oil (French racing oil brand) in all of my engines for several years with total satisfaction...engines seem to run and last much better than with castor oil.
However I have not run one of my MVVS Q-500 engines with this oil so I can't say for certain it will work. But I have flown my Q-500 racers powerd by a Webra .40 GT and a MVVS .40 with standard silencer on this fuel and they have certainly run good for several years.

Regards!
Jan Karlsson
Sweden
http://hem.passagen.se/airracing

427HISS

So what makes these a "racing engine" ?
Gigger bore & stroke, racing oil ???

GREG DOE

All (engine) racing events have rules that specify the maximum displacement (bore, and stroke) allowed. So you can't just use a bigger engine! There are many difference between a racing engine, and a sport engine, but the most common difference would be the crankshaft, and port timing. The biggest performance gains in events where displacement is dictated by the rules, are achieved by increasing the RPM's with timing changes. This explanation is the bare bones description of a very complex subject.