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We have single cylinder engines, twins, triples, four-pots, inline fives, straight-sixes, but then we start to skip some steps. We jump to V8s, V10s and V12s, even V- or W16s. It’s a question many of you probably have never even thought to ask, but now that you’ve clicked on this video, let’s talk about it – why is there no such thing as a 7-cylinder engine?
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Thoughts on the sound of the inline-seven? 🤔Thanks to Bespoke Post for sponsoring today's video – New Bespoke Post subscribers get 20% off their first box of awesome — go to https://bespokepost.com/drivetribe20 and enter code DRIVETRIBE20 at checkout.
Was the simulation from AngeTheGreat?
You’re wrong, many 7 cylinder radial aircraft engines—Jacobs for one
i mean anything above 5 is always even
This may be one of the best videos you've done, mate. My first car, a 1965 Ford Galaxie, had a 240 ci (3.9 l) straight six in it. That engine was one of the best ever, I just didn't appreciate it at the time. It was the fourth generation inline six that Ford made, and stayed in production until 1996.
11 cylinders is where its at.
I recall the distinctive note of the turbocharged inline-5 engine in my old Audi 5000. Engine and turbocharger were reliable but everything else broke.
My 1 cyl atv revs to 8.5k, and feels like its gonna explode.
Radial engines are cool
3 cylinders makes sense for economy. Why do they bother to make 5 cyclinder engines? They should surely be extinct…
Why is there a 5 cylinder?
Haha
Speaking of engine balancing…. I've got an exams tomorrow on this course😅
7-cylinder engines do exist. They are extremely rare
As I’m sitting here sharpening my Opinel 6, he does his piece on Bespoke post😂
Quick correction on the AGCO engine as someone who uses a tractor with it. Each cylinder does not have its own head, and it appears that they use an inline 3 head and an inline 4 head. Also, your comment at 12:40 about them being naturally aspirated is incorrect as basically no modern diesels in the 10 letter range are, and the AGCO has a compound turbo setup making about 40 psi on the monitor. The in-line 7 9.8 liter is governed to 2300 rpm, and makes 431 hp @ 1700, and 1,417 lb-ft @ 1500.
10:08 you seem to forget that straight 8 was a thing
There are 7 cylinder airplane rotary engine. There are 7 cyl marine straight engines.
I did see a inline 7 diesel once.. I was in new hampshire and there was this snow plow machine, one of those tracked machines you use to smooth the snow at ski resorts, with the plow in the front and the rakes at the rear and it had in inline 7 turbodiesel. It was some strange scandanavian design. And there are slow speed inline 7 diesels used in ships.
there have been 7 cylinder diesel engines. cheers.
I learned more than just about why 7 cylinders are impractical. I learned about balance, efficiency, weight, power, use case… well done.
Straight 6 🤪😈 .. Datsun 240z , Jeep 4.0 … Never went German, 👍 to the straight 6 👍
Excellent explanation…but a v12 or a w16 runs so smooth I bet you can balance a nickel on the motor while it's idling
Bro I just want a V7
Sisu from Finland made a 7 cyl marine diesel.
Look up simulations of how an i7 would sound, they’re the creepiest coolest sounding thing I’ve ever heard, like a v8 and i5 made a baby. They’re wicked.
The one question I always wondered about was:
why are odd numbers of cylinders preferable to even numbers in radials? This question doesn’t apply to 18 cylinder radials, as they are simply two banks of 9.
I still wanna see one in a car lol
Why would you go to the trouble of trying to make a bad idea (7 cylinder) work?
In the diesel world yes.