Obscure engine thread

What on earth are the benefits to a w8 setup aside from packaging?

I think they sound absolutely incredible. Unfortunately they are insanely expensive to maintain, coupled with the fact that its difficult to find anyone who even knows how to work on them

Other urls found in this thread:

en.wikipedia.org/wiki/Commer_TS3
de.wikipedia.org/wiki/Napier_Deltic
douglas-self.com/MUSEUM/POWER/unusualICeng/unusualICeng.htm
youtu.be/lPDCu-1vD4I
youtube.com/watch?v=SUHLtSuslAE
youtube.com/watch?v=WfEEmdz7-Fk
twitter.com/SFWRedditGifs

Always thought these were neat
en.wikipedia.org/wiki/Commer_TS3

Time to bring the thread back from the dead with a twin turbo flat twelve.

I know this is an airplane engine but I figure it's mad enough. It's like a piston engine that feeds and is fed by a jet

>napier nomad
>1. 41 litre, flat 12, 2 stroke diesel. Runs at 3.5:1 compression ratio
>2. Rear propeller powered by piston engine
>3. Afterburner in the exhaust for the piston engine
>4. Turbine from the exhaust for the piston engine. Basically the back end of a turbocharger
>5. Axial compressor. Powered by air from the turbine at the rear
>6. Front propeller. Powered by the turbine
>7. Intercooler
>8. Centrifugal supercharger. Because it is powered by an afterburner rather than just exhaust air it manages a healthy 90psi of boost

This was beyond nuts

Now that is what I call a fucking rocket sled.

mid-mounted in a Forrester when?

Wait so two cylinders share the same chamber? Thats pretty damn cool.

>not flat 16

>8 intake runners
>8 throttle valves
>8 injectors
>2 exaust headers
>4 cylinders

>the original wankel engine

>runs so lean detonation does not occur

de.wikipedia.org/wiki/Napier_Deltic

>Lada single-dorito engine

>shitcanned before reaching production due to abysmal reliability

The 24 cylinder Mercedes Benz twin A-12

Based on 2 fuel injected Mercedes Benz DB 600 series engines wich where available with the following extras:
>supercharger
>methanol injection
>nitrous

Here a singe DB605A A-12 engine

Been looking to modify a late model engine for experimentation with this.

Napier Deltic triple crankshaft locomotive engine

Post results please and be carefull with the A/F ratio, a little too rich and it detonates.

Napier scale model engine

Honda asymmetrical V-5 engine.
3 smaller pistons on one bank, 2 larger pistons on the other bank.

>wankel issues
>russian reliability
Please, god no.

Read the article years ago, they heat the intake gases and run lean like 18:1 or 20:1 or something. Pogue carburetor is worth a read too.

>lean like 18:1 or 20:1
He actualy ran way more lean, araound 1:30

Oh, it's been 7-8 years since I read about it.

What did this go into?

Looks like a motorcycle engine

12 rotor lmao. Fuel economy is probably measured in angstroms
Motorcycles

Mid-mounted in a literal wing on wheels good enough for you?

It was an actual thing. Those were only in the use of KGB or police.
Ultimate unreliability combo.

>get chased by KGB
>KGB stops due to engine problems
TOPKEK

The W8 was kinda like VW's test-bed for the W-config engines, and was actually a really smart idea since it reduces engine length (front to back), which is critical in cars where the engine is entirely ahead of the front axle (like the B5 Passat).
Now for an engine that's really damn hard to justify, the VR5. Same inherent issues as a VR6, not really any smaller or lighter, equally thirsty, but with less displacement, less power and worse internal balance.
Fucking godlike sound though.

What is this pic

It goes with out saying if you were lucky enough to get a car in Soviet Union. You had to wait about 10 years to get a car in the first place.
Oh well, if it were to fail, then you are trying your luck since GAZ-24 with V8 would be chasing you

See Ivan, when KGB arrives, get in Melkus.

Speaking of God like sounds, that flat-plane crank made that W8 sound mean as fuck

Yeeah, sadly it's also the reason the thing basically shakes itself to pieces.

>Melkus RS 1000 is a sports car
>powered by a 3-cylinder 2-stroke 992 cm3 engine similar to the one in the Wartburg 353
Uh-oh. The chase would be too long...

>Melkus has perfect ballance
>Melkus is verry aerodynamic
>Melkus has increased power
It exceeds 200 km/h, wich was a lot in eastern germany...

Meh, I didn't say it was reliable

Ahhh that sounds mad as fuck

I heard stories of them catching Beemerfags in early 90's, though one can imagine they did not last long in service after SU fell

>he thinks the nazi dirito is a rotary

>Umlaufmotor

>those intake manifolds
HAHAHA, OH WOW

Production when?

shit, that dizzy

Even though it was shit the BRM H16 was a pretty cool engine.

Honda RC211V MotoGP motorcycles. Basically it was a gimmick to exploit FIM rules. At the end of the '02 season they re-wrote some of the engine spec rules. Basically a V5 could be far more powerful because it fell into a grey area in the rules, which set max displacement/rpm/etc using a tiered hierarchy.

Napier - those guys must have been absolutely nuts. Amazing stuff.

what is this mechanical monstrosity

That hot air engine wasn´t Napier, it was some guy in his own garage.
A opposed piston 2-stroke engine.

yeah it's forced induction so who cares about pressure drops, right?

I misclicked. Meant to quote

jesus fucking christ what kind of ungodly mechanical monstrosity is this

>afterburner
>in a diesel
>that has a 3.5 c.r.
>41 litres
yay for efficiency

can someone post that pic showing how the heat is dispersed in a W engine compared to a V engine?

Actualy the deltic was a german design by Junkers...

actually, it was among the most fuel efficient aero piston engines

That'll do pig, that'll do.

Honda has a history of doing unusual stuff to get around regulations.
Pic related, it's the NR750 V4 engine which has oval pistons and 8 valves per cylinder.

>they are insanely expensive to maintain,
Explain why this configuration would be expensive to maintain.

>coupled with the fact that its difficult to find anyone who even knows how to work on them
Why would it be more difficult to train technicians on this engine that a V8 or V12 for example.

Back your answers up with facts, please

Methinks you are talking bullshit

Not him, but it's probably expensive to maintain because spare parts for an uncommon engine such as that are probably pretty expensive.

Because they are rare, hardly anybody has bothered to train technicians specifically to work that engine.

Oink

It's not all that expensive to keep running compared to similar VW's.
>Not him, but it's probably expensive to maintain because spare parts for an uncommon engine such as that are probably pretty expensive.
It shares many parts with other vw engines, especially externally, and cost for any specific part is not out of line with other vw models.
>Because they are rare, hardly anybody has bothered to train technicians specifically to work that engine.
They don't need any specific training. Most techs have no model-specific training of any kind, and don't really need any. Decent basics plus very thorough manuals and documentation eliminate the need.
>Methinks you are talking bullshit
Youthinks correctly, fellow anime poster.
>difficult to find anyone who even knows how to work on them
No, it's not. Go to the fucking VW dealership. They are all prepared and qualified to work on them.
They don't charge unreasonable amounts of money, people just have unrealistic expectations about the cost of major repairs, or really anything beyond the most basic maintenance.

anime posters get >>/out/

...

>get out
You can't stop us

Funny, my w8 passat was 7300 bucks to change the oil filter screen. I would consider that rather unreasonable.

Oh boy do I have a site for yall. Be prepared for the cutting edge of 19th century IC engines.

douglas-self.com/MUSEUM/POWER/unusualICeng/unusualICeng.htm

>for most cars independent shops can do better work at lower prices
>it's not expensive to maintain, you just have to go to the dealer

putting the moron in oxymoron

does this count?

log manifold a best

do you have a boner for the w8 or something? because you're trying really hard to convince everyone that its basically the same as a corolla engine in terms of cost and ease of maintenance, which it abso-fucking-lutely is not

good thing flow doesnt matter when you're essentially raping your combustion champers with compressed air and additional fuel

Did this type of engine go into any production vehicle? How does it called anyways?

Now this would have been an adventure to maintain

Seconded. I’m far from an expert on anything but it seems like there’s a ton more block material in between cylinders than there is normally on other configurations

it must have the same problem as the aerial square four and triumph square four
.eg hot spots between cylinders

That is madness. I love it

How about a V12 LS1
youtu.be/lPDCu-1vD4I

...

>2017
>not having a building sized engine

Your'e a big engine

Imagine replacing these headgaskets

DoubleChecked

Glorious VW AP engine.

Niggas put 700+ hp like it's nothing. (and pistions fly away as well)

youtube.com/watch?v=SUHLtSuslAE

>W engine
>Isn't a W

Your mum.

Never hopefully.

Less efficient than a 2 cylinder in-line with less reliability... W H Y

Those were primitive air cooled junk made as cheaply as practical. I collect and ride old Britbikes and would love to have an Ariel for the art value, but they were not highly reliable machines even for their day.

Triumph square four? What Triumph square four? A prototype? They never mass produced one and in thirty years plus of working on motorcycles I've never heard of such a thing, not even at the Barber museum. Turner designed engine for both marques.

Liquid cooling solves the hot spot problem.

>The clapper

The single-rotor engine never made it past an experimental batch. Police interceptor Ladas were fitted with later 2-rotor engines, which weren't all that unreliable on the road, but needed an overhaul every 30-50k km.

V8 Volgas weren't made for chasing common criminals. They were made for tailing foreign diplomats who drove powerful imported cars.

>3.5L rear mounted V8

>air cooled

first square engine I saw was in a triumph frame
most like a coincidence

That's the huehueland version of the good old EA827, right?

youtube.com/watch?v=WfEEmdz7-Fk

Bumping with diesel rotary

Here, have a double diesel dorito spinner.

How does the lower rotor benefit the engine? Why not just use a PD blower?

Fuck if I know, but Rolls-Royce thought this was the best way to do it.