Hi fell/o/w channers, e/lit/ist here.
I saw a documentary about the buggati veyron, and they said it was a 16 cylinder engine.
My question is are there 20 cylinder engine?
Are there v20 engines?
Would cars get a 20 cylinder engine anytime soon?
How much gas would that guzzle?
Would a fully charged future electric car, beat a fully gassed 20 cylinder car?
Would the gas run out before the charge?
Sorry only auto related pic i had on me.
Some ships and cargo plane pullers use 16+ cylinders and ~20 valves. There used to be race cars with just as much decades ago when efficiency tech wasn't very developed.
Who knows what's in the future for road cars now, but unless a make goes nuts we won't have anything more absurd since it's absolute overkill. Still, you could technically build something crazy for yourself if you take an airplane motor and slap it in or something.
>Would a fully charged future electric car, beat a fully gassed 20 cylinder car?
>Would the gas run out before the charge?
This would depend on the efficiency curve of the gas-powered car's engine, the size of the gas-powered car's tank, the size of the electric car's battery pack, the efficiency curve of the electric car's motors, and the load put on the engine/motors.
A Bugatti Veyron can drain its 100l tank in 12 minutes at top speed, but a Tesla Model S can only launch at full power a few times before the batteries run out.
Well, a 20 cylinder is certainly capable of making more power than 16 cylinders and below, however you can get more power than a Bugatti Veyron from a car with an engine as small as an I6, and V6 (Toyota 2JZ-GTE and Nissan VR38DETT) or even a 1.3 liter Rotary engine (Mazda 13B).
The downfall of 20 cyl. engines, is that they have to be very heavy, and thus are mainly used in marine and locomotive applications.
It would guzzle a lot of gas, but I would assume they are diesel, not gasoline powered, but if a car manufacturer used one they would make it gasoline powered I'm sure.
I could see a one-off concept car with a 20cyl. engine at some point coming out, Cadillac made a 16 cyl. concept car in 2003 so that's not far off.
For that electric car comparison, I can't make that comparison because I don't know how fast electric cars will be in the future, so I'll just take the two fastest production cars, for electric, Tesla Model S P90D, for gasoline Koenigsegg Agera One:1, with a V8 engine.
The Koenigsegg would probably be just ahead to 60, but once it gains traction it would decimate the Tesla, it's over a full second ahead in the 1/4 mile and the fastest car to 200mph ever.
The gas would not run out before the charge in a 20cyl car I'd say, my old car had a 5.0 V10, which when really pushing it and getting 6 MPG, had a range of 200 miles, which is what the Tesla has just putting along, and the Tesla actually gets noticeably slower when the charge is running out, even at 70%.
Wall of text over.
>Are there v20 engines?
No. It would be too long to make decent power and the weight would be atrocious
>Would cars get a 20 cylinder engine anytime soon?
No. 16 cylinders is the most any production car has had. The Bugatti Veyron is the first 16 cylinder car since the V16 Cadillacs of the 1930's.
>How much gas would that guzzle?
Too much.
The Veyron doesn't use a V16 engine to avoid the problems with length and weight. Instead it uses what's referred to as a W16 engine. There are 4 banks of 4 cylinders connected by a common crankshaft. So it's a very wide engine but it's actually no longer than a V8.
Think of the Veyron engine as 2 Volkswagen VR8 engines (Think a VR6 with 2 more cylinders) angled apart and sharing a common crankshaft.
Pic related is a Bugatti W16 engine block... with an expensive watch in each cylinder to illustrate what I'm talking about.
Aren't alternators suppose to charge the batteries while in use?
What about superior capacitors? They can hold the charge to pass onto the batteries.
An electric car going that fast is suppose to be charging like crazy. That is just wasted energy f3om breaking and continuous movement.
Electric cars tend to recharge under braking, not under power. If they could charge while on the move, you'd have an infinite source of energy which would solve a lot of problems in the world.
Unless you want the main bearings to be super fucking huge, your long V20 will grenade hilariously fast due to crank whip.
There's a reason the Veyron used a W16 not a V16.
What about a w20 engine? That would be doable?
Hell, can they put a bank of 4 cylinders at the center crest of the engine block? Right where that colour code is in your pic?
Multiple banks of batteries?
Have some charge while on the move, and some charge while breaking, they should be able to simultaneously switch between the banks when one is draining to a higer charged one, so it could charge.
Get some a programmers/electronic mechanics to earn there bread.
Current battery packs already consist of many cells and a controller directing where all the power goes, the problem is just that currently, battery technology doesn't allow for more energy to be stored inside.
Charging while on the move would just put unnecessary strain on the motors (since no alternator is 100% efficient) and ultimately just drain the batteries faster.
Well, yeah, just two VR10s (don't think anyone's made a VR10 yet though) joined at the crank. Radial aircraft engines look like this (pic), so there are plenty of functional weird looking engines, you would need to put one on the other side too, making it a WW engine (?) but that's probably not the most efficient way of doing it.
Look up "X Engine" on google images to see loads of different 4 cylinder row configurations
>(don't think anyone's made a VR10 yet though
I'd imagine it as two VR5s attached end-to-end. Could work.
>What about a w20 engine? That would be doable?
Doable, yes. Likely? no.
On a related note, VW did make a VR5 for some markets so you would need to combine 4 of them.
VW is the only company to make W engines. Any car you see using a W engine is a car made by VW. VW owns VW, Porsche, Audi, Skoda, Seat, Bugatti, Bentley, and Lamborghini
V16 and V20 don't have crank whip issues like straight-8s do. they're just so fucking long that they're not really practical in cars. They've been used in planes, boats, and the odd plane, however.
It would not surprise me at all if the crazy bastards at VAG designed and possibly even built a W20 engine... but they have yet to use it in a car. Perhaps they had issues with it, or maybe they're saving it for a later supercar.
>planes, boats, and the odd plane
... that's trains, boats, and the odd plane. Not quite awake.
That is not how it works, alternators, generators and regenerative break all charge slower than you drain with a motor at full power, also by making the car regen at power all you are doing is creating an extra load for the motor that won't even give it back a fourth of the power it's consuming
There is a damn good reason we don't put regen on electric cars besides when breaking, because that's the only application where extra load is desirable.
Go drive a tesla if you can. In its settings you can turn off regen breaking. When in regen the car will coast like you have your foot a third in the break pedal, because the regen break calipers are active and rubbing on your rotors. It's not strong enough to stop the car like the main break system, but it will slow down the car considerably when compared to regen off where the car coasts like a normal car in neutral
Btw we already use multiple cell banks and the reason capacitors are not used is because they deplete way too fast for city driving, they would be great for racing through, too bad F1 banned them in favor of batteries
>It would not surprise me at all if the crazy bastards at VAG designed and possibly even built a W20 engine
I'm actually surprised they didn't make a W20 for the Bugatto Chiron.
BTW OP, VAG stands for Volkswagen Auto Group
VR10 Could work, perhaps, but it would be something of a solution in search of a problem. Because of the spacing, VR is somewhat longer than "half" of the inline configuration. A VR10 would probably be a bit longer than an I6, which is already inconveniently proportioned for a lot of cars.
VR8 could be interesting as a replacement for I6, but then part of the point of the VR6 is its suitability for the transverse layout. Longitudinally, the space savings would be less helpful- there'd be little if any advantage over a regular old V8... or a W12 for that matter.
As far as mechanical viability, I'd not correlate the VR engine with its W "equivalent". It's not just a matter of bodging the two engine blocks together; the balance characteristics change when the engines are "combined"- an I4 doesn't balance like a V8. W engines are also mechanically complex and generally aren't as balanced as their V equivalents.
Why would a straight-8 be more susceptible to crank whip than a V16, assuming the length, stroke and journal size is more or less equal between the two?
What would happen if one or two of the pistons in your gif misfired....
>Would the gas run out before the charge?
lol nope
Is this that nigga from latvia?
Can't they design an alternator that is housed in the car wheel/brake drum?
Can't they make a sensitive dynamo to connect to all 4 wheels? You don't have to strap it directly to the electric motor (which would be retarded).
I drove a Tesla and when I came off throttle it came to a full stop almost instantly. Was the most uncomfortable shit ever. It was like unintentional brake checking.