Come on. Take one for the team. You have specs for ZDZ, DA, 3W, and BME. Buy the 85, make it non recognizable so you dont blow your cover, test the hell out of, and throw it away?
Are there any plans in the future for an MVVS 85cc sized engine?

With link to image in this thread.

thanks pe email received & sent one back,,be great to hear the the toy fair gossip about mvvs.
looking forward to my new 152 now
here is a vid from today guys the 116 in the 40% is fun in the wind
cheers glen
http://www.youtube.com/watch?v=vJHTmN03i_0

Hi,
I was on exibition. You can see here first picture.

Thanks for the pics

Any specs for the 152?

yehaaaaaaaaaaaaaaaaa thanks for the pics roumor just turned reality in my eyes now
cheers glen

Jan,
Yesterday, I have been in the MVVS corner looking out for you from 12.00 - 15.00!!!! Where were you? I have met the new UK importer, and others, but not you.


OK guys, here are the scoops:
New:
mvvs26, updated with larger crankpin. now also available with side spark plug (special head)
mvvs 40 Modified 35 with larger bore
MVVS 45, redesigned front bearing lubrication
MVVS 80 new engine, bore48mm stroke 44mm 2220 grams without ignition, props 26x10 to 27x10
MVVS 80 twin spark, new engine, bore48mm stroke 44mm 2220 grams without ignition, props 26x10 to 27x10
MVVS 152, new engine, bore 48mm stroke 42mm, 3530 grams without ignition, props 29x10 to 32x10
MVVS 152 twin spark, new engine, bore 48mm stroke 42mm, 3530 grams without ignition, props 29x10 to 32x10
New side muffler for the 45 cylinders and up, builds more compact and as close to the engine side as possible
And of course, there was gossip, which for the moment I keep to myself.

Most of the engines now have the possibility to add a shot of lubrication to the front bearing. Extra clearance has been added between crank and housing, so more oil can get up front. The 45 even has a special oil bore leading to the front bearing.

Edit:
And this collection in the background makes the trip well worth the effort, will post detail pictures asap

Hi Friend ,

I saw you. You spoke with UK partners. I was there with ION PRo plus producer. We turned around exibition place betwen 1O up to 16 oclock.

Jan

Pe, I think you shipped me a prototype of this 40 by accident when I bought a 35 a few years ago, because my 35 is running like a champ and doing 500rpm more then MVVS claims that it is capable of on a pipe. (mine is running 7800 rpm on a MZ 20*10)
So, I'm surprised that they have been able to improve the already superb 35.

Here are the 80 and 152
Both can have single spark plug cylinders, or twin sparks.

Is there any chance we can get the factory tested rpm figures?

Look at the props that are advised. That tells the story. Larger props, stronger engine. Knowing MVVS, they won't take quite good as good enough.

My 116 runs well with a 30x10 Menz prop. I would expect the 152 to be in the range of a 34-36" prop.

What engine could we compare the 152 against? How will it fair in a comparison to 180 or 200cc engine?

a 32x12 at 6000 would be 19HP, a 36x12 at 5500 requires 24 horses to turn. A 3W 200 will produce about 18 hp (on paper)
Expectations are not always realistic, nor is it realistic to ask for a comparison with 200cc engines.
However, if you give me < real life data > on 180cc engines, I will soon know how the 152 compares.

I've got a plane on order that calls for a 150-200cc engine. Was just wondering how the 152 will fair against other engines in that range.

Already have a 45,58,and a 116, so want to stay with MVVS.

hi the 152 will swing the same prop as the 3wtscs200 so im sure this motor will be a must have,,,,,im pumped about them
cg

Come Guys,

So now that they have had the show. When can we buy one of these 152. Running ouit of patients here. PE have you still got me on your list. Please don't forget.

I have made delivery arrangements for you and wifpwcf , and will make arrangements for pre-order payment on my web page in order to get you in my materials flow system. Check in tomorrow, when you will be able to order.

Ok,

Its been a month since the last posting. Whats happening. is there any update on this engine.

Have sent you a PM

Oops... Should have read my mail first.
Things are shaping up, and the first batch of production cylinders has been done. It seems that the wait is over.

Hey no problem. Tell me has MVVS come up with test results yet. Prop sizes, BHP, RPM ect. I'm removing a 3w150 out of a 40% EDGE 540 for this motor. I am sure there will be no comarison at all. Just interested in any testing that they have done. I have the 116 in a 35% extra as well. I am extremely happy. Motor has never given a problem at all.

Preliminary data teaser: (not off production cylinders!!!)
Mejzlik 29x12N 3 blades; without exhausts (open port) : 5500RPM ( warm engine )
Mejzlik 30x12 ; without exhausts (open port) : 5800RPM ( warm engine )
Mejzlik 30x12 ; with 58cc muffler INT58 : 6000RPM ( warm engine )
That is not a quick cold engine peak reading! and equates to:
HP:13.42
lbs:73.21 thrust
static-thrust 67.35 lbs (with plane)
That will yank around a 35lbs plane without limits.

MVVS is still working on a muffler for the 80cc cylinders for further improved performance.

PS
a very good single cylinder engine will produce ~15 hp per liter per 1000 rpm. (my Kreidler 50cc MX engine produced 9 hp at 12000 rpm)
A twin on common crankcase will deliver ~13.5 hp
6000 rpm standard would be:
6*0.125*13.5=12.31
The MVVS is about one hp stronger than that, meaning it has a very good torque.