V6 Video

This is a 93cc (5.7Cu in) 90° V6 model aero engine. It is made entirely from standard bar stock, mostly aluminum. The design is by Wolfgang Trötscher of WTEngines.com who also sells the drawings. I have modified the design a little, mainly the intake manifold and carb.
The design splits the crankcase and crankshaft into three parts, making construction on small machinery possible. This also means that the crankshaft (and camshaft) can be supported entirely on ballraces instead of plain bearings.
The engine produces about 8bhp and running free will go to 9000rpm, though 4000rpm is a more comfortable speed on load.
In the video the engine is fitted with a flywheel rather than a prop. This is mainly for safety- a 24” prop can cause life changing injuries with a moment’s inattention.

[@gudurumohanprabhakar7660]

Very good 6selender ingen

[@rc-engine7135]

nice motor 👍 nice to see that there are others who build their own motors 💪

[@simonhaworth5948]

Absolutely brilliant. Beautifully machined and it really sounds like the business.
What kind of power is this little beauty producing?

[@michaelstratton6059]

Thanks for your comments. According to the spec it produces 8bhp, but I have no way of testing my engine.

[@orangpinggiran9164]

👏👏👏

[@user-pb8of5tr1h]

Приветствую, очень интересный ДВС, покажите обзор на изготовление будет очень интересно. Вы хороший мастер. Привет из России.

[@donanderson9269]

Sounds like it’s got solid (non-hydraulic) valve lifters.

[@michaelstratton6059]

It certainly has

[@finniboy9670]

Man hört so ne. Klug klug das finde ich hört sich immer nice an wie der Kolben Luft rein zieht man kann es nach machen ein man seinen Mund auf und zu macht mit den Lippen

[@DeejayGrafixx]

Subed for tripple carb setup

[@mikecorleone6797]

Seems like the carburetor iss too small 🤔 perhaps a twin carb setup would yield better response?

[@TestECull]

wonder if there's a version where the cam is in its proper place down in the valley and there's two more cylinders hanging off the back...

[@michaelstratton6059]

Yes, I made one a few years ago, but it is water cooled!
Have a look at ruclips.net/video/tR57lNi1hx8/видео.html

[@TestECull]

@@michaelstratton6059 That thing runs better than half the commercially sold V8s I hear on a daily basis. An air cooled version of that thing would be amazing in a sufficiently large RC airplane! And the liquid cooled one in something like a Primal RC Raminator would be just mint.

[@michal.abramowicz]

Carb too small?

[@tedsmith6137]

Yes, I thought the same. Just a tiny O.S. carb. Would give lots of torque, but limited power and rpm.

[@ethancoy9237]

Has it got split crank pins for even firing or is it an odd firing engine?

[@michaelstratton6059]

Its odd firing with a 90° vee. Split crank pins would be very difficult to machine on a small engine like this.

[@ethancoy9237]

@@michaelstratton6059 Yeah I can only imagine, still looks like it runs pretty smooth despite that though, awesome!

[@andyandrews788]

why stop at six??

[@siggivanutrecht]

But you have nothing to do with the "Briggs & Stratton" engines or??

[@michaelstratton6059]

Unfortunately not, or I would be a very rich man!

[@michal.abramowicz]

♡♡♡

[@wongcilik5886]

what is the diameter of the piston on the v6 engine?

[@michaelstratton6059]

The bore and stroke are both 26mm, giving a 93cc capacity

[@wongcilik5886]

@@michaelstratton6059 what is the piston made of?

[@michaelstratton6059]

@@wongcilik5886 Aluminium, with one cast iron ring

[@daviddeangelis6839]

Hmmmmmm.... i guess you need to check timing and carb... it doesn't seem to rev as it should....

[@vinayakjadhav2102]

Ye machine kharid sakate he kya

[@michaelstratton6059]

Sorry, its not for sale