Miniature Flat FOUR Nitro Engine - Assembling & Testing! 

Still wouldn't sound quite right unfortunately, Subaru and VW are specifically boxer 4's. Boxers are flat, but not all flat are boxers. Boxers have the opposing pistons synchronised to reach TDC/BDC at same time as each other whereas you can see on this crankshaft the piston on the left reaches TDC at the same time as the piston on the right reaching BDC

You mean that vomit inducing sound that makes me that accepts that people have different tastes in car culture than me and respects that fucking hates with a passion

It won‘t rumble, it‘s a flat 4, not a boxer. Flat 4 is basically a 180 degree V, two pistons share a crankshaft pin. Boxers have a pin for each piston, which means the movement is different.

@@Phrew It will. even an inline 4 will rumble with UEL headers.

​​@@Phrewthat literally has nothing to do with the rumble sound caused by the unequal length of the exhaust header. The Shelby gt350 is a flat plane v8, but it doesn't sound like a flat plane v8 because they use unequal length headers.

Flat engines are designed like that tho, thats what makes it a flat engine and not a boxer

@@gundamned4879 Flat plane crank, like the Corvette Z06, which sounds awesome.

nop not the same thing@@allenl9031

Well, the engine is tiny it could be a 1 can thumper and still rev to 30,000

@@allenl9031 Yeah not quite the same there, 'flat' is referring to crankshaft setup for horizontally opposed engines, flat engines use shared crank pins for opposed pairs like a V engine, Boxer refers to those being 180 degrees apart so the pistons move opposite to each other and cancel out more of the vibrations making it smoother, both setups are still flat plane.

How is it not?

​@@DavidGragg82cylinders are not opposed. It's a flat 4, not a boxer 4

@@Giuliana-w1f yep telltale sign is that a boxer doesn’t share crank pins

the opposing pistons always move to another or away from another. the crankshaft would look a lot different. this here is the same as a V engine, only not at 60° or so, but at 180°@@DavidGragg82

Naw man why would you wanna have to deal with a blown head gasket on your model engine 😂

but you don't really see it getting pulled into the fan, I suppose its just because of the high rpm. the pulley ratio is rather big so that fan is spinning like twice the speed of the engine

Yep. Watching in .25 speed @ 4:00-:03, the cams both move with "left" cam moving the most. The timing marks should be more precisely located and indicated so all builders can get valve timing right the first time.

My first thoughts exactly !

Dune Buggy with visible engine.

it would be awesome if you could also get the "tweet" note out of the exhaust!

It will never be a Beetle because this is not a Boxer engine.

@@albinklein7680 The boxer engine is a flat engine, belonging to the type of internal combustion engine. The engine pistons are arranged horizontally and symmetrically on each side of a central rotating crankshaft. When operating, they move continuously and in opposite directions, transfer force to the crankshaft, helping the crankshaft to move. It’s called “boxer” because the way the pistons move is like a boxer throwing punches. You have just learned something today.

Ikr theyre so cute especially the overhead camshaft was so small!!

The sound is different because it's a flat-4 not a boxer

@@bigpig187 thanks, BigPig…you sent me to school (online), where I learned from looking at crank/stroke/firing diagrams of Flat vs. Boxer engines; and I’ve been flying 4 & 6 cylinder Continental & Lycoming engines for over 25 years. I assumed all flat engines were “horizontally-opposed ‘boxer’ engines,” and were all similar. I thought my 2.0L 914 engine was a Flat-4, since it was more VW than Porsche; and I’ve always believed VWs to be flat-4s. so, as a 45yr old in 2023, I now see that those mid-‘70s VWs were boxers, after that reply piqued me brain. *Thank You* I’m sincere & not some sarcastic YT comment section jerk now, I wanna look into which U.S. market autos feature(d) Flat-4s as opposed to Boxer-4s…like a Fiero. WTH was that guy running? thanks again, Dude.

@@corporalclegg914 Wow that's the best reply i had in years ! Usually when i bring this up peoples just tell me "duh it's the same why are you confusing peoples ?" even when i explain that a boxer is suposed to have opposed pistons at bottom dead center at the same time. I think most planes are flat-4 (and 6) because the crankshaft is simpler and thus more reliable, at the cost of a less balanced engine. Porsche did make a flat engine but the only one i can think of is the 917's flat-12. Being in EU i'm not sure wich US cars are flat 4 and it's not so easy to find out even when you know what to look for. I was thinking about the Corvair but nope, it's a boxer. I'm happy i could help you learn something (even with 20 years less^^) and clarify this common misconception !

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