Scale Running Model Harley Panhead Engine by Ron Colonna

V-Twin Panhead
Ignition: Spark
Bore: 1 5/16 in.
Stroke: 1 1/2 in.
Two Cylinder Four Cycle
No Castings Used
This engine was scratch built to a scale of 2/5ths or 40% of full size. The bottom end was taken from a drawing of a Knuckelhead engine that I puchased on e-bay. The top end was patterned after photos taken from e-bay of Harley parts for sale. I also bought a Harley repair manual that helped with the oil system. The crankcase was split into three sections instead of the usual two for ease of machining. The ignition is solid state and I use a GM coil which fires the two plugs simultaneously. Timing is advanced and retarded with the timer body. Two rotating magnets fire a Hall effect device at the proper times as per full sized points. The engine is large enough to produce that lovely V-twin sound.

Rating Rating Rating Rating Rating 
Views: 630,144
Added: 4 years
Runtime: 2:27
Comments: 399

Tags for this video:  

Find more videos in the: "Autos"
Uploaded by: ronsmodelengines
See more videos uploaded by ronsmodelengines

Related Videos:

Model V8 Engine is too damn cool for words
Rating Rating Rating Rating Rating 
Views: 218041
This 45cc model V8 sounds every bit as good as the 'real' thing! Scratch built 45cc V8 with Megasquirt MS2 fuel injection.
Mini CNC 4-axis and Miniature Chevrolet V8: Super Sound!!
Rating Rating Rating Rating Rating 
Views: 1314032
motor diesel V2
Rating Rating Rating Rating Rating 
Views: 551501
motor diesel in doi cilindri . ceva old
Bristol Hercules demonstration
Rating Rating Rating Rating Rating 
Views: 3455162
Another demonstration of the very same Bristol Hercules engine as seen before on this channel. This was shot at the Borås airshow in Sweden this...
Supercharged home made Straight Eight by Desperate Dan Vid 2
Rating Rating Rating Rating Rating 
Views: 1340730
Built in a shed, it fired up first go. I was hoping it would sound real lumpy like a drag engine, but it runs too smooth, and it's too quiet even...
Homemade engine
Rating Rating Rating Rating Rating 
Views: 746694
4 Stroke 2 cylinder engine 20 cm³ 100% homemade. Propeller: 40-20 ( 16-8") Conventional machines No cnc used
The "Flying Millyard" first test run
Rating Rating Rating Rating Rating 
Views: 249063
This is the first test run of my 5 litre V Twin engine based on two Pratt & Whitney R1340 aircraft cylinders, all other parts are hand made...
V Twin Diesel Motorcycle
Rating Rating Rating Rating Rating 
Views: 959066
This is my Punsun V Twin Diesel motorcycle. It was built in my high school class over the winter. It has 20hp and a CVTech CVT transmission it...
Model V Twin
Rating Rating Rating Rating Rating 
Views: 94884
Hand made v twin 1/4 scale model engine
1960 Vespa 400 Microcar with 1200cc Harley Davidson Sportster engine
Rating Rating Rating Rating Rating 
Views: 427127
I've had a ton of emails asking for more shots of the build and video of it running down the street. Here a short clip to give you some idea of...
Harley Big Twin Engine Cutaway View
Rating Rating Rating Rating Rating 
Views: 185899
Here is a V twin Harley Davidson motor that has been cut open as to view its action. I filmed this at Lake Washington Institute of Technology in...
1928 Henderson Deluxe Antique Motorcycle Running
Rating Rating Rating Rating Rating 
Views: 2072329
Thundertiger Ducati Nitro
Rating Rating Rating Rating Rating 
Views: 2164247
Starting the engine of a Thundertiger Ducati Nitro RC motorcycle
Schillings V8 80cc model engine running with great sound.avi
Rating Rating Rating Rating Rating 
Views: 514843
Schillings V8 model engine. 80cc, Methyl fuel, glow plug ignition, freewheeling electro starter powered by Lipo 5000mAH 2S.
1936 Fairbanks Morse Model 32D
Rating Rating Rating Rating Rating 
Views: 8683142
Running in Pottsville Oregon. Hard to tell from a video but this thing shakes the Ground when it runs.
Coca Cola Can Engine
Rating Rating Rating Rating Rating 
Views: 5810846
simple stirling hot air engine made at home with simple tools ,2 cans a baloon welding rod steel angle grinder disc for flywheel ,steel wool for...
2 CYLINDER DIESEL TAPLIN TWIN 15CC running, vintage RC engine(not nitro or glow !)
Rating Rating Rating Rating Rating 
Views: 668437
MORE MODEL ENGINES : For the amateurs of : Vintage Engine motor V8 V12 twin 4 stroke...
Conley Factory Tour Model V8 Working 1/4 Scale Engine
Rating Rating Rating Rating Rating 
Views: 1382257
Visit to purchase this engine. Working 1/4 scale working V8 model engine. Tour of how it's made as well as some light...
1/3 scale 302 Ford V8 running
Rating Rating Rating Rating Rating 
Views: 1027367
After a long period of just sitting in the display case I finally made the time to get my 1/3 scale 302 Ford V8 engine running again. I made an...
Hildo´s Harley vs Honda CBR1000RR Fireblade
Rating Rating Rating Rating Rating 
Views: 1017190
Dragrace between Hildo, the owner & builder, of a 25 year old Harley Ratbike Chopper and the owner of a 170hp+ Honda CBR1000RR Fireblade. This man...
Stinger 609 Test Stand
Rating Rating Rating Rating Rating 
Views: 337156
Conley Precision Engines - April 2, 2011
Flame Gulping Engine
Rating Rating Rating Rating Rating 
Views: 4831369
This is a video of the flame gulper engine pictured on the "Models" page of my Engineman website. The fuel is alcohol. It was made from plans in...
Bobber Pros "let it ride"
Rating Rating Rating Rating Rating 
Views: 848906 latest build. We take newer Sportster motorcycles and create daily driving masterpieces like this one shown in video....
World's Biggest Street Engine, 1001 cui
Rating Rating Rating Rating Rating 
Views: 495034
World's Biggest Street Engine, 1001 cui. 16,5 ltr. Build and Dyno tested by Peter Thau, Cartek, Denmark New video...
90 degree V-twin, my own design
Rating Rating Rating Rating Rating 
Views: 98456
This is the second test start of my recently completed V-twin engine. After the first start the other day I had several problems that needed to be...


Author denro0 (3 days)
I'd mount some ape hangers on the front of that board and have it working
with a throttle grip....that motor is awesome !

Author dizbcuz (26 days)
your rear pushrod tube is wiggling but great job

Author MrWeetjewel (28 days)
Just like the real thing, blue smoke from oil consumption, idles messy,
constant tinkering to keep it running, and you have to bolt everything down
to prevent it from falling over.

Author James Scarberry (1 month)
Tooo Cool............... Nice job!!

Author daan bombay (3 months)
whaaaaaaaaaaat XD Nise man

Author Brian Critchley (3 months)
Brilliant, put it in a mini Harley frame & charge kids twenty a ride, then
build more, you could end up with millions..

Author Jesse Angell (3 months)
Hey Ron, I'm new to the miniature engine world, and I'm wondering how one
goes about obtaining these. Are they all custom built? Or does anyone sell
prebuilt engines or kits? Thanks in advance.

Author Leonard Hoffsteder (3 months)
You should build the rest of the bike, That's Awesome !!

Author Mesa Vella (3 months)
I am amazed...excellent feat!

Author Russ Swanson (6 months)

Author wildcoyote34 (4 months)
this is pretty cool ,,, it even sounds like a real harley engine 

Author Esiggies Cigarettes (4 months)
I hope you have a trailer.

Author HoonTV (4 months)

Author awbretire (4 months)
Awesome. Nice job of engineering. And can ya make a 4 speed tranny for it
with kick?

Author Mike Sellers (5 months)
even at 2/5 scale that engine sounds bad ass

Author Daisuke Sakazaki (5 months)
Kids and such. First of all you guys need to get off your butts and do it.
Im a psycho with a v-twin chainsaw on my arm. Deal with it. Don't try this
at home. Stereotypes you also need a job.

Author Dan Brown (5 months)
Very nice job. Casting and machining, you are indeed a master craftsman.
Retired has tools and brains putting it all together and this is what you

Author Mike Palumbo (5 months)
Here's a mini Panhead. Sounds just like a full scale engine. More links to
others too on YouTube 

Author pandaManda22 (5 months)
What kind of carb are you using?

Author John Ratko (5 months)
Right on.

Author Zvonko Mokricky (5 months)
the best engine.

Author herbienbrian2 (5 months)
Now this would look good in my minibike.

Author Donny Yaul (5 months)
i want that to build mini bobber for my lil girl... 

Author Snitchy1989 (5 months)
beast.. How did you make that? and make it look so realistic

Author re tard (6 months)
that would go great on my rupp hustler

Author bob smiths (6 months)
What is the displacement and HP of this motor? 

Author coltbuntline (6 months)
Where can I buy on? Do you have a knuckle and shovel?

Author Всеволод Кононов (6 months)
very cool 

Author TwistyMcFisty1 (6 months)
You totally have to build a little chop around that.

Author Jay Chapman (6 months)
wow crazy

Author Karl Power (7 months)
So damn cool. Where can I buy one to build?

Author mastertracker510 (8 months)
Super nice! how much?

Author andreas stavrou (6 months)
popcorn is ready

Author James Hornback (6 months)
Decent Harley action in Red Light King OLD MAN video.

Author carl burke (7 months)
Sweet !!! is this available to build in a kit ?

Author William Karlovic (7 months)
Very cool! but what are you going to do with it?

Author Dean Burge (7 months)
Is there one that is 66/80 cc that will mount on a bicycle

Author Mike Clements (7 months)
I have great respect for any one with enough patience to build something
like this. I have the tools and the skill. But I don't have the patience.
It takes all 3 to do the job. Well done sir !

Author Karl Kreutzer (7 months)
1A +++

Author Dylan Hunter (7 months)

Author Augusto Girotto Barioni (7 months)
harley davidson sound

Author vittorio midjo (8 months)
how does engines give sound

Author 45yayayaya (8 months)
that's the coolest fukin thing ive ever seen

Author KesherMedia Kay Em (8 months)
OMG... It's a baby Harley. :-)

Great work!

Author Jonathan Bolz (8 months)
Definitely TFC in this small scale and especially to retain that
"Ker-chumph" sound.

Author Josh Rogers (9 months)
love how it still has that classic harley off beat at idle

Author chiviric ayala (9 months)

Author Амиран Бохуа (9 months)
Souds deadly Right! 

Author Motonit Motors (9 months)
dam cool...

Author Ray Abbott (11 months)
This is Great :)

Embed Video:


Search Video

Top Videos

Top 100 >>>


Check PR