@@SpartanSaint75 Well, theoretically, you could get two beetle engines, and then basically just take all the internal stuff and cram it into a special block, that then you add all the usual stuff to.
Probably like 3:00! That engine sounds like two Subaru EJ engines put together, in the same way a Ferrari 360 V8 sounds like two Honda motors put together.
@@xostler 1:02 does not sound flat plane at all to me. And i don't see how you could make a flat-plane flat-8 without having more than one cylinder firing at the same time.
Franklin also made a flat 8 air cooled aircraft engine called the XO 540-7. They are quite rare I hear. I do know the Northrop N9MB flying wing used two of them.
@@patrickradcliffe3837 I went to the Reno air races one time. That is pretty wild how far they push some of those engines. Rare Bear was absolutely awesome.
One of the harder airplanes to land dues to its nose heavy configuration from the Lycoming IO-720. An airplane that wants to land on its nose...even with considerable compensatory elevator trim!
The reality is, only three different engines, two different aircraft engines and the Porsche long term development of a flat eight that was used in many different race series.
The Porsche flat 8 engine has one of the most magnificent sounds in the world of internal combustion. I only wish it had been put into production in a road going version of the 908.
now i wish i had some engineering resources as i now want to make a flat 8 k20. though it at first glance it seems like all i'd need is a new block and crank with a few accessory things but i know it wouldn't be that simple.
also the turbo charged Crower flat eight used at indy 500 during the 1970's? Engine was approximately 161cubic inch & utilized Cosworth cylinder heads. I believe the driver was Jerry Sneva
back in 1971 my Father had a genuine Porsche workshop and Hamiltons of Melbourne the Australian agents lent him a 908 we removed the engine and gearbox and showed it on our stand at the Adelaide motor show back then it was so interesting and the best thing about it is that Hamiltons had it road registered i didn't ask questions but it had a Victorian rego sticker and plates on it.
Flat 10 engines were not used because of size, emissions, and rough running when not using a fuel injector for each cylinder. But I still designed boxer 10 engines, which would sound unique compared to a V10 and also have a low center of gravity for handling.
I 'felicite' you for the amount of research you have made and the bulk of real information in your video content. Excellent, man. So many thanks! Gratulerar. Tack så hemskt mycket.
Here in Portugal, just saw the extremely rare BMW Isetta 300! How much running units are available around the world? I don't really know how rare it is... 1950-60, 161k sold units, maybe only 50 running? If you Know could you let me know? Love your vids!
In the 1965 Sebring race seven Porsches in a row entered the straight leading to the HairpinAs they entered the straight they were led by a 356C owned by Florida lawyer Dave McLain. Then cane five 4-cylinder 904s. Trailing them all was the factory 904-8. When they came into my view again the 904-8 led then came the four cylinder cars followed by the 356 with its pushrod engine. This last car had finished 10th overall the year before in what became the Daytona Continental.
I have designed flat 8 engines, both shared and boxer. I found that the boxer 8 is best for a production car due to smoothness, where opposing pistions move in and out in tandem to eliminate any rocking couple in the engine. It would be better at turning really fast than a cross-plane V8, while still getting the growl that cross-plane V8s has.
This is not meant to insult you. Dude, I like your informative and well put together videos. Hire someone else to talk on your behalf. You sound like you have rocks in your mouth and it detracts from the presentation.
Nice job, bout you`ve missed one. The Fitti-Volks was a VW beetle made by the Fittipaldi brothers (Emerson and Wilson) to race in Brazil against Ford G540, Lola T70 and Alfa Romeo T33. They joined two 1600cc VW engines and tuned it up to 400 hp. Unfortunately there are only information in portuguese about this car, but you can use google translate to check it. Here is one of the websites that contain some info about it: projetomotor.com.br/muito-alem-da-copersucar-os-insanos-carros-experimentais-dos-fittipaldi-2/
flat engines are the norm for light aircraft as they allow direct (or epicylic) drive without obstructing pilot view. It's rare to need as many as 8 cylinders, but there are other examples, as people have commented.
There is another flat 8 that's about as rare as rocking-horse shit, I have a brand new one here destined for a future T roadster build. The Packette Continental flat 8 is a GPU engine, just like the Lycoming it is 720 cu in but has cross flow heads with intake ports on top. There are two different versions of it, the knuckle type head & the pan type head. Mine has no identification tag so I don't even know what to call it other than a big bad-ass Continental. www.google.com/search?rlz=1C1CHBD_enUS788US788&biw=1132&bih=696&tbm=isch&sa=1&ei=0USZW87ULIPW8APKmInoBQ&q=continental+8+cylinder+aircraft+engine&oq=continental+8+aircraft+engine&gs_l=img.1.0.0i8i30.33062.34260..37085...0.0..0.108.495.3j2......1....1..gws-wiz-img.rzZNQD4U4nU#imgrc=_
It is not a flat (boxer) engine but a 90ª V8 with rwd. There were two prototypes of which one is extant. The standard Cupé Justicialista was a fwd with a Porsche flat four 55hp industrial engine. I owned one so I know what I´m talking about.
A Flat-8 is techically not the same as an 8-cilinder boxer. Techically a Flat-4-6-8 is a V-4-6-8 with an angle of 180 degrees. Opposing pistons use the same crank. In a boxer, opposing pistons are connecte to a different crank.Flat an boxer are a different concepts all together.
Here's the rub, though. _All_ of Porsche's "flat-8" engines used separate crank throws per con-rod. However, for a brief spell, the Type 908 engines weren't actually boxers... The boxer is typified more accurately by the combination of a 180° "V" angle as well as a 180° split between neighbouring crankpins on the crankshaft. Those "neighbours" correspond to the "boxing" piston pairs in the cylinders opposite each other in separate banks. What Porsche tried, as a result of the 771 and 908's propensity to shatter flywheels and cranks, is to turn it into a flatplane design. This would, they hoped, reduce the torsion problems they were having, and as a bonus simplify the exhaust arrangement, too. But simply sticking in a flat-plane crank, and having opposite cylinders share crankpins, would result in simultaneous ignitions: two cylinders, an "end" and a "middle" in each bank, would be ignited at the same time every 180° of crank rotation. That's what BRM did with each of the flat-eight halves of its H16, at first (they later used a 45° split crankpin design). Porsche probably wanted to use the existing 908 cases, so it was not physically possible to make a true common pin crank to fit it anyway. Porsche instead re-employed the same split pin crankshaft approach as it did with its boxers, but separated the throws by 90° instead of 180°. This effectively resulted in two inline fours (one per bank) separated by 90°, not unlike a flatplane V8 (just with an unusual, symmetric and very sweet sounding firing order) - i.e. the 90° separation was achieved in the crank instead of the V-angle. For some reason, this engine was fond of breaking its various ancillaries instead; possibly a balance, or again (still) a torsion issue. They went back to the 753 / 771 boxer configuration and just beefed everything up considerably. Similarly, most V6s use split / individual crank pins per con-rod, but not one of them is a boxer engine. As already stated, all boxers are flat engines, but not all flat engines are boxers; even those with individual crank throws ;) "Opposing pistons" is a very different kind of engine, where two pistons occupy a single cylinder - think Junkers Jumo or Napier Deltic or Commer TS3 "Knocker" etc.
Erik Christensen straight 8s/inline 8s have the cylinders arranged in a straight line rather than being horizontally opposed like the engines in the video.
I guess you can be forgiven, for not including the Fittipaldi 3200, Faster than a Ford GT40. The story www.dlg.speedfreaks.org/archive/cars/fittipaldi/3200/3200.php, video, th-cam.com/video/Q7GjFe5keew/w-d-xo.html
Why doesnt Porsche make Flat 8, Flat 10, Flat 12 on street legal cars? Yea i know it doesnt fit on a regular 911, but make a car that can..... wtf..... it would sound so unique & amazing.
I love how the subtitles say “music” when the engines are reving 😂
Because it is music
Did they stutter?
The song of my people
The only music I like
That 908 is the true definition of BWWAAAHHHHHHHHH. Eargasms ensued.
Yes. I love the sound of a flat 8. Its the soundof a cammed cross plane v8 with the howl of a flat plane.
Agree, it sounds unique
Is there a reasonably affordable production flat 8?
Quite similar to a straight 8/V16 minus some of the bass frequencies
@@SpartanSaint75 Well, theoretically, you could get two beetle engines, and then basically just take all the internal stuff and cram it into a special block, that then you add all the usual stuff to.
@@ruslandamron9069 or you could tuck 2 inline 4 together onto the same crank. Some peopl have done it in 30s or 50s
That Porsche footage at the end!
Man I almost jizzed my pants to that engine sound
Damn they look like Speed Racers!
Laguna Seca... check out Bruce Canepa's 917s
I love how the flat 8 and flatplane V8 engines sound like 4 bangers coming at you, and like fucking musclecars leaving you. Lol
Makes you wonder if subaru made an 8 cylinder what it would sound like ?
If it had the same firing order it would sound exactly the same.
@abz1248 probably not the same. It would would like a flat plane V8 I’d wager… like in the video at 0:16… or 1:02…
@@abz124816 no it wouldn't x 2 🤦
Probably like 3:00! That engine sounds like two Subaru EJ engines put together, in the same way a Ferrari 360 V8 sounds like two Honda motors put together.
@@xostler 1:02 does not sound flat plane at all to me. And i don't see how you could make a flat-plane flat-8 without having more than one cylinder firing at the same time.
that porsche 908 was so loud, I LOVE IT
sounds like a corvette/camaro
I’m gonna go off and make a flat-10
Flognop Been wishing for someone to cook one up for AGES
@@tonysshredshed297 Anything on a Flat-16?
u guys cant do shit bud, unless if u have a mechanical engineering degree, the most u could have done is an unreliable unstable prototype 🤣🤣🤣
2:30 maybe the living legend version also have flat 8 engine like the old one
If only Subaru made a flat 8 to complete with the 1uz
they did make a flat 12 however, something like 3.5L 600Hp NA
it was originally used for formula one, but never raced unfortunately. besides, the engine was so heavy, underpowered, and unreliable.
It was a Motori Moderni engine, commissioned by Subaru.
What about porsche
Needs to be mass produced
Back in the 80's, Puma took 2 VW 1600 boxers and welded them together
Shame it never left prototype state
Franklin also made a flat 8 air cooled aircraft engine called the XO 540-7. They are quite rare I hear. I do know the Northrop N9MB flying wing used two of them.
its the perfect mix of the rumble of an American v8 and the scream of a European v8
Porsche did this better than anybody. The Lycoming is pretty cool, as it flies over it sounds like a flathead Ford V8 in the Piper Comanche 400.
They are using these IO-720 in unlimited sportsman class at the Reno Air races with speeds over 400 mph.
@@patrickradcliffe3837
I went to the Reno air races one time. That is pretty wild how far they push some of those engines. Rare Bear was absolutely awesome.
One of the harder airplanes to land dues to its nose heavy configuration from the Lycoming IO-720. An airplane that wants to land on its nose...even with considerable compensatory elevator trim!
The Porsche 904 and 908 flat-eight engines sound like what a Ferrari V8 might sound like if it had UEL joined headers.
Imagine the Porsche 908 engine in a BRZ.
Absolute Perfection…
The reality is, only three different engines, two different aircraft engines and the Porsche long term development of a flat eight that was used in many different race series.
Mike Patey has that Lycoming in his new "Scrappy" built.
I heard that Porsche flat 8 at GoodWood. And it's LOUD 😍😍
The Porsche flat 8 engine has one of the most magnificent sounds in the world of internal combustion.
I only wish it had been put into production in a road going version of the 908.
now i wish i had some engineering resources as i now want to make a flat 8 k20. though it at first glance it seems like all i'd need is a new block and crank with a few accessory things but i know it wouldn't be that simple.
Your data showed that the 908/3 flat eight engine weighed 1,204 pounds. How could such a lightweight design weigh so much? Thanks!
It’s be insane if Porsche was to make a 911 or boxster/cayman with a NA or turbo/supercharged Flat 8.
Nice like racing Flat Porsche engines at Laguna Seca ..!!!!
the sound...the sound! YES!
What about a T-90? It posesses an 8-cyllinder flat diesel with a 28-35 L of displace ment producing 750-1000 hp in different variations
The sound of that gulf blue Porsche.....
8 cylinder engines sound good in any layout
Flat 8s have a sound of their own, not like a V8, not like a straight 8. Nice. :-)
also the turbo charged Crower flat eight used at indy 500 during the 1970's? Engine was approximately 161cubic inch & utilized Cosworth cylinder heads. I believe the driver was Jerry Sneva
back in 1971 my Father had a genuine Porsche workshop and Hamiltons of Melbourne the Australian agents lent him a 908 we removed the engine and gearbox and showed it on our stand at the Adelaide motor show back then it was so interesting and the best thing about it is that Hamiltons had it road registered i didn't ask questions but it had a Victorian rego sticker and plates on it.
I love V8s and all but it would be cool if there were straight 8s and flat 8s like 6 cylinder cars.
My grandfather's plane was a Camanche 400 that had 4 litre 400 hp n/a flat 8 in it. Total rocket
I could be wrong or very wrong, but i had this thing if world made V12 from two V6 then can't world make flat 12 from two Flat 6???
The 904 such a beautiful little car
Flat 4s, 6s, 8s, 12s,... Hey, what happened to Flat-10s?
Flat 10 engines were not used because of size, emissions, and rough running when not using a fuel injector for each cylinder. But I still designed boxer 10 engines, which would sound unique compared to a V10 and also have a low center of gravity for handling.
I 'felicite' you for the amount of research you have made and the bulk of real information in your video content.
Excellent, man. So many thanks! Gratulerar. Tack så hemskt mycket.
VW should aquire Subaru and design a mid engine porsche SUV with a mid engine flat 8 and symmetrical quattro.
You showed some nice pictures/clips Thanks:-) And you sound better too;-) You earned my like
The “IO” in the Lycoming IO-270 means that is fuel injected and opposed (flat/ boxer)
Yes, and the number is the displacement in cubic inches. Like a Lycoming TIO-540 is a turbocharged injected opposed 540 cubic inch opposed 6 cylinder.
new intro is really nice man
I think I could watch that in car Laguna Seca Porche for hours.
Nice noises top information just the job mate thank you 😎
Another fine video
Wish there were more of these
im sure a flat 8 engine would work in f1 with a small enough displacement. like .5l per cylinder. a 4L 8cyl cant take up that much room
Lycoming aircraft engines made the IO-720 which was a flat 8 air cooled engine for the Piper Cherokee 400.
*camanche 400
My interest is what these engines sound like: They sound like V8's.
Why the fuck doesn't a modern Cayman or 911 have this design?
Here in Portugal, just saw the extremely rare BMW Isetta 300!
How much running units are available around the world? I don't really know how rare it is... 1950-60, 161k sold units, maybe only 50 running? If you Know could you let me know?
Love your vids!
@Daver G Wow. Probably the most conserved car in the world? And who would sell such car?
5:01
God DAYUM.
sounds like a corvette/camaro
I literally Googled Flat 8 because I thought of Ferrari which made Flat 12 in their Testarossa.
You need to check out the Gasser Squareback. The builder took 2 flat 4's and connected them at an offset 90 degree crank
That car is nuts, sounds great
You understand how much you liked Visio's video when you double-check if you gave it a thumbs up... just to be sure😅
In the 1965 Sebring race seven Porsches in a row entered the straight leading to the HairpinAs they entered the straight they were led by a 356C owned by Florida lawyer Dave McLain. Then cane five 4-cylinder 904s. Trailing them all was the factory 904-8. When they came into my view again the 904-8 led then came the four cylinder cars followed by the 356 with its pushrod engine. This last car had finished 10th overall the year before in what became the Daytona Continental.
Love the new intro bro!
Eyyyyy sweet duke, loving it
A n/a carbed 2.5L flat 8, with flat head. That would be the best sounding thing on earth
I have designed flat 8 engines, both shared and boxer. I found that the boxer 8 is best for a production car due to smoothness, where opposing pistions move in and out in tandem to eliminate any rocking couple in the engine. It would be better at turning really fast than a cross-plane V8, while still getting the growl that cross-plane V8s has.
Air cooled flat 8... lord that is cool
This is not meant to insult you. Dude, I like your informative and well put together videos. Hire someone else to talk on your behalf. You sound like you have rocks in your mouth and it detracts from the presentation.
I appreciate your honest words, but I hope you do realize that you comment a three-years-old voiceover
I want Laguna Seca to return to GT Sport so badly. T.T Not as much as Special Stage Route X though.
What about Citta Di Aria?
Grindelwald, Red Rock Valley or SSR11 with the GT1 layout
The Northrup N-9-M Flying Wing has two flat 8 engines.
also another great video for the io720 sound is the nemesis nxt speed runs
It sounds kinda like a cross between a Ferrari V8 and a Mustang V8.
we need the 904/8 in horizon
Your duke? 390? 125?
Luca Brecel 390
we need to make it 1299!
Nice job, bout you`ve missed one.
The Fitti-Volks was a VW beetle made by the Fittipaldi brothers (Emerson and Wilson) to race in Brazil against Ford G540, Lola T70 and Alfa Romeo T33. They joined two 1600cc VW engines and tuned it up to 400 hp.
Unfortunately there are only information in portuguese about this car, but you can use google translate to check it. Here is one of the websites that contain some info about it: projetomotor.com.br/muito-alem-da-copersucar-os-insanos-carros-experimentais-dos-fittipaldi-2/
flat engines are the norm for light aircraft as they allow direct (or epicylic) drive without obstructing pilot view. It's rare to need as many as 8 cylinders, but there are other examples, as people have commented.
That aeroplane reminded me of gta3. No wings.
What about cars with straight 8's?
There is another flat 8 that's about as rare as rocking-horse shit, I have a brand new one here destined for a future T roadster build. The Packette Continental flat 8 is a GPU engine, just like the Lycoming it is 720 cu in but has cross flow heads with intake ports on top. There are two different versions of it, the knuckle type head & the pan type head. Mine has no identification tag so I don't even know what to call it other than a big bad-ass Continental. www.google.com/search?rlz=1C1CHBD_enUS788US788&biw=1132&bih=696&tbm=isch&sa=1&ei=0USZW87ULIPW8APKmInoBQ&q=continental+8+cylinder+aircraft+engine&oq=continental+8+aircraft+engine&gs_l=img.1.0.0i8i30.33062.34260..37085...0.0..0.108.495.3j2......1....1..gws-wiz-img.rzZNQD4U4nU#imgrc=_
Subaru would make this; but now that they are under toyota, they'll soon be making 2 cylinder engines and scooters. What a shame!
Why isn't there more blown flat 8's?
I noticed the Porsche 904 is basically a 914 with a flat 8 and slightly different body parts .
The last one sounds like a boxer 4 but with a quicker and louder punches
There is a car in Argentina....Justicialista....build by Peron with a fwd Flat V8
It is not a flat (boxer) engine but a 90ª V8 with rwd. There were two prototypes of which one is extant. The standard Cupé Justicialista was a fwd with a Porsche flat four 55hp industrial engine. I owned one so I know what I´m talking about.
Of course, both Franklin and Continental produced 8 cyl aircraft engines.
A Flat-8 is techically not the same as an 8-cilinder boxer.
Techically a Flat-4-6-8 is a V-4-6-8 with an angle of 180 degrees. Opposing pistons use the same crank.
In a boxer, opposing pistons are connecte to a different crank.Flat an boxer are a different concepts all together.
8 cylinder boxer is flat 8, but not all flat 8 are boxers, like in other number of cylinders
Here's the rub, though. _All_ of Porsche's "flat-8" engines used separate crank throws per con-rod. However, for a brief spell, the Type 908 engines weren't actually boxers...
The boxer is typified more accurately by the combination of a 180° "V" angle as well as a 180° split between neighbouring crankpins on the crankshaft. Those "neighbours" correspond to the "boxing" piston pairs in the cylinders opposite each other in separate banks. What Porsche tried, as a result of the 771 and 908's propensity to shatter flywheels and cranks, is to turn it into a flatplane design. This would, they hoped, reduce the torsion problems they were having, and as a bonus simplify the exhaust arrangement, too.
But simply sticking in a flat-plane crank, and having opposite cylinders share crankpins, would result in simultaneous ignitions: two cylinders, an "end" and a "middle" in each bank, would be ignited at the same time every 180° of crank rotation. That's what BRM did with each of the flat-eight halves of its H16, at first (they later used a 45° split crankpin design). Porsche probably wanted to use the existing 908 cases, so it was not physically possible to make a true common pin crank to fit it anyway.
Porsche instead re-employed the same split pin crankshaft approach as it did with its boxers, but separated the throws by 90° instead of 180°. This effectively resulted in two inline fours (one per bank) separated by 90°, not unlike a flatplane V8 (just with an unusual, symmetric and very sweet sounding firing order) - i.e. the 90° separation was achieved in the crank instead of the V-angle. For some reason, this engine was fond of breaking its various ancillaries instead; possibly a balance, or again (still) a torsion issue.
They went back to the 753 / 771 boxer configuration and just beefed everything up considerably.
Similarly, most V6s use split / individual crank pins per con-rod, but not one of them is a boxer engine. As already stated, all boxers are flat engines, but not all flat engines are boxers; even those with individual crank throws ;)
"Opposing pistons" is a very different kind of engine, where two pistons occupy a single cylinder - think Junkers Jumo or Napier Deltic or Commer TS3 "Knocker" etc.
Maybe do a video about diesel 4bangers? Btw great and informative videos, keep up the good work
Is your changing the intro?
you start the video clueless, when the video is over you just go "huh... I should buy a flat 8" or is that just me?
if you took a 928 and put a honda v10 onboard you would have a rocket and it should be done
First view ❤ i finally get to tell you how much i fuckin love this channel
What about the Ferrari F40LM?
Didn't a Flat 8 engine REQUIRE a flat 180 degree crank ?
There was one AMX tank with a flat eight
That is true!! There is an engine like that displayed in a museum in France
Da Rold Elio thats what i was thinking about haha
these are boxer 8s right? not 180° flat 8s
Chris Everett The IO 720 is a boxer flat 8. Do a search and you can find pictures of its crankshaft. Don’t know about the others.
Hey look, another plane. Yay.
Ferrari made flat 12 models for their Boxer Street cars and F-1 cars too,low and wide.
Power of boxer
there is a cool video of an io720 with twin tubos
What about the Mercedes w125 thing
Erik Christensen I believe that’s a straight 8 engine with forced induction.
Ashraf Abba does it say that there shouldn’t be forced induction
Erik Christensen straight 8s/inline 8s have the cylinders arranged in a straight line rather than being horizontally opposed like the engines in the video.
4:47 i never knew the porsche 908 used the toyota 7AGE engine
Porsche would never downgrade to that.
well of course not!! they are porsche after all.
Minor achievements??? The Porsche F1 car won a GP!
Eat lots of beans turnips and cabbage in one go.. wait half an hour.. lie down on the bed.. there you go.. you have flat 8 engine..
I guess you can be forgiven, for not including the Fittipaldi 3200, Faster than a Ford GT40. The story www.dlg.speedfreaks.org/archive/cars/fittipaldi/3200/3200.php, video, th-cam.com/video/Q7GjFe5keew/w-d-xo.html
Relatively very popular
Why doesnt Porsche make Flat 8, Flat 10, Flat 12 on street legal cars? Yea i know it doesnt fit on a regular 911, but make a car that can..... wtf..... it would sound so unique & amazing.
The Jabiru 5100 is very light? No it isn't, it only makes 180 hp and weighs 260 pounds! It could be considered light if it weighed 100 pounds less.
Indy Car Cosworth/Crower Flat 8