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had the 400cc and the 600cc. they was both very efficient and fun to drive. the engine was eternal but around 200.000 km lost compression. with tje 600cc on the motorways i gone about 100-105 kmh, not very good because i was just a little bit faster than trucks and overtake was boring. on the other hand the car was fantastic on state or little roads even without asphalt. in Tuscany i crossed also a few ford (of rivers) on roads made only for farm tractors.

Maybe this could work as a twin charged or twin turbo engine

The same air plane engine

I think the 2CV suspension damping is a bit more complicated than just friction dampers? Doesn't it have a strange, oil filled container with a loose weight in it on each wheel?

Keep repeating that nonsense about idle speed lol every bike I ever had idled below 1000rpm warm. Not every car tho

I had a ‘66 1300cc Beetle. Great car - last year of the tear drop headlights. One time I was driving my ‘66 Beetle in San Francisco and I hear a loud bang. The engine was still running, but it was shaking and running rough. I managed to get the Beetle off the street and into a parking spot. Later, I had the Beetle towed to my favorite mechanic, Nick. He’s taking it apart and looking at it. He says in a fake German accent, “Yah! Here it’s zee problem! One of zee valves has broken off and punched straight through zee piston!” We tried to find a replacement piston and one parts dealer just laughed and said “You’ll never find pistons for a 1300cc Volkswagen engine. They only made that engine for one year.” So what are my options? Not much. Custom pistons were more expensive than a new engine. So, I bought a new 1600cc engine. Nick and I installed that engine. It was a nice upgrade, though it would have been cooler to keep the ‘66 Beetle stock, but since we were going to alter it anyway I had him lower the suspension and install disc brakes. The disc brakes were actually the best upgrade. The new brakes were way better than the stock drum brakes. The lower suspension made handling better, but rough. Later, I was driving around with my girlfriend - one with big boobs. She complained that she needed to wear a sports bra to ride in my car. Ha!

Besides couple of things: ofcenter connecting rods to piston and skirt. The wear on the tremendous stress of tbe cam pushing only the piston in the exhaust stroke. After all of that how would tbe piston pull in air on intake stroke without floating and slamming on tbe piston only cam. This after all the insane stresses already and the even more insane speed of the piston operated on cam only!!

In a wasted spark scenario, the spark plugs don't last 1/2 as long, more energy is sent to the side that is under compression as more is needed to jump the gap, the spark in the twin cylinder is very weak

Secrete alloys Titanium nickel and chromium tungsten 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

7 to 1 is very lower pressure

Smokey Yunick said 2 stroke is the way to go

What does a video game have to do with an actual motor??? Video games are for children.

When i was a child, my father ride a "Citroën AMI6" with a motor identical and a stylism strange with glass in rear incline inverse. We ride over the France "coast to coast" from Brest (north west) and the coast of Azur : 1350 km (840 miles) numerous journey whithout problem. Thank for your video.

Так себе идея! Время на выпуск отработанных газов и наполнение цилиндров очень маленькое! Проще обороты поднять, чем так извращаться.

.....и какой только фигни не придумают....

I had a 2 cv for about 5 years and it was not a good experience. In only 20.000 km following things broke down: Clutch, oilcooler,gearbox,wheelbearing and the carburettor. The gear ratios were not very appropiate, gear 4 was overdrive so up the hills and with heavy load or the wind against you ,one had to go down in gear 3 with a speed of 60. It was difficult to repair, the heat system was lousy and practically not existing and it was a bad starter in the cold winters. But one person could push/ run start it with emty battery.That was good!!

many interesting miles on an allstate 175 that wore out 3 times and would still be running today if sears had not quit supporting it with parts.

Don't forget to mention that the engine was designed by Ferdinand Porsche.

My Dad's old tractor was a two stroke diesel, it was called Field Marchall was made in the UK in the 1940's, it had a 9" piston.

fun fact: 2 stroke engines are used in RC cars, just search 3.5cc nitro engine

The lime green car is a Heinkel or a Trojan, not an Isetta

My Parents had one, so my wife and I ! The cheapest convertible car !!!

blower still spins the wrong way

As a high school kid i always wanted a VW Bug to restore and drive. More than one seasoned mechanic tried to change my mind. One day i bought my Bug and started working on it and was soon to find out why i had been warned off the idea. The engine requires CONSTANT maintaining and work. Its an amazing machine but don't get one unless you want to be working on it all the time. The best part of my experience was that it made me an excellent mechanic and honed my skills for other car types.

I had the 2CV panel truck and later the bench seat jeep or pickup version in Iran back in the mid to to late 70"s. Great little cars although not very fast as you mention in your article. A friend of mine who had the sedan bought a bigger engine in France and swapped it into his sedan don't recall all the details.

Small correction: 2 stroke engines with valves do exist. Have a look at Detroit 2 stroke diesel engines which utilize an exhaust valve already since 1938. The large container ships of today are also powered by 2 stroke engines utilising exhaust valves.

Especialy in big diesel engines there are a lot of 2 strokes with (excaust) valves and different ways to get air/excaust gas in and out the cilinder. Especialy in big (old) diesel engines.

First motorcycle I ever rode was an Allstate 175cc owned by a friend. I think it was a '54 model, dark red color and a solo seat. That was '57. There were photos of James Dean seated on one just like it.

As far as I remember, the 2CV was designed to replace 2 horses. The requirement was driving 4 individuals with hats and a tray of eggs across a freshly harvested corn (weed) field. That's why the very comfortable suspension.

Thanks!

At 7:30 .... Pimp my Citroen!

Don't know about the 2CV, but the bug had an atrocious ride...a real kidney killer

I have "reinvented" two camshaft twingle-like H engine as high performance 24-cylinder unit with piston axis angled by 150 and 30 degree (I called it rhomboidal engine).

All these engines are just boasting; my engines are to be started taking part in the world competition and they will be soon known to everyone worldwide

The 2CV was a very genius car with French understatement and smooth suspensions. Normally the 2CV had 28 HP which was enoug. The 9 HP version was only at the first beginning before WW2

The most interesting performance upgrade for the 2CV - But a BMW 'Airhead' boxer engine from a motorbike in it!

The Beatle engine was a POS: the head bolts pulled loose resulting in loose heads, low compress, and blow by; the #3 cylinder exhaust valve broke off at 50,000 miles ruining the head, piston and cylinders;, when rebuilding you always had to line bore the crankcase because the unbalanced crankshaft wallowed out the too small main bearings; exhaust gasses ALWAYS entered the passenger compartment; etc. etc. ad infinitum.

bmw did a version that takes water from the ac unit. no need to top up with water

Great fun to drive smooth ride

That sounds like a great idea; consider a joint venture with China's BYD hybrid EV cars.

We had a derelict 2CV in our back yard, chickens took over. The seats were taken out and used for furniture. We live on a mountain in the sub Sahara, so nothing stayed wet for long. 13 months of sunshine

After the VW diesel debacle, it was made clear auto diesel engines have a firm mandate to Drastically reduce emissions Legally.

Nothing new under the sun...

Very very interesting and informative

по русски говорят - это "к пиСТе рукав"!

I had a 2 stroke BSA Bantam D1 that would come to a grinding halt, whip the plug out, fingernail through the plug gap to clear the carbon whisker killing the ignition, pop plug back in & be on your way again... that wasn't a break-down that was just a normal journey

Had a TWN scooter back in the sixties, would beat the pants off Vespa's and Lambreta. Considered a classic now and hard to find in the UK.

Ok

😂

Much respect to the people who came up with this and all the work they have done. But if you want a car to make 20% more power you dont need to reinvent the whole internal combustion engines production chain. You just make a slightly larger convetional engine. With this said thumbs up and keep thinking outside the box. Thats how innovation is achieved 👍