How Fuel Efficiency & Consumption Works - Scrap Mechanic Science! 

the electric engine may seem more fuel efficient at first glance but remember that in scrap mechanic, gas is more renewable than electricity for some reason there's no solar panels or wind turbines, but there's literally entire ponds full of oil if you know where to look for them

I also used to do some Experiments for building Flyers. Some of the most interesting Results I got that you could maybe verify are: -Actual block weight doesn’t scale linearly with the weight description. The relation is: 1 - 1; 2 - 2; 3 - 3; 4 - 4; 5 - 6; 6 - 8; 7 - 10; 8 - 14; 9 - 18 Notable exceptions are Small Pipes each weighing 1.5 per Block as well as bearings, pistons and springs which have no weight. -Thruster Force is proportional with Thruster fuel consumption for a give Level. Force increases exponentially for each setting with a base of 1.5 -Thruster Force varies slightly over time, in magnitude and direction. The Game files also hint at this. -Free bearings don’t have friction. -Air resistance is proportional to mass and velocity, rather than real air resistance which is proportional to the drag coefficient and velocity squared in most common cases. -Bearing are much weaker in survival than in creative mode. When met with a linear force they move or stretch a lot.

How do you have 230 Subs... I thought you had at least 6 or 7k Subscrivers, this is underrated content.. you deserve more subscribers, keep this up!

Thanks for "wasting" your time to save me from wasting my time! I wish you many subscribers and 2 pancakes :)

That is some amazing experimenting you did there. I really like how these results turned out. Sucks that the thrusters are so inefficient though. Amazing job Dr Pixel. The "Dr" part of your name really fit well in this video

My god this whole channel is so underated ! I loved it ! Thanks !

My doctor: Long haired thruster doesn't exist, it can't hurt you. Long haired thruster: 11:29

Protip: if you did this with saw blades, you wouldn't have to worry about bots getting in the way

the force of a thruster goes up exponentially, I assume that its efficiency would to measuring the thrust produced in the equivalent of weight force of the concrete block 3 L1 - 6.4 L2 - 9.5 L3 - 14 L4 - 21.3 L5 - 32.02 L6 - 47.6 L7 - 71.2 Keep in mind that the units shown are of the force in equivalent to a number of concrete block 3 the mass of the concrete block 3 is 35.5625 also the mass of the thruster goes down when you upgrade is so the thrust to weight ratio will change. you should also note that the torque of the gass engine follows a similar path as wall as the rpm of the electric engine. I recommend making a dynamotor in a controlled environment. its not that hard. I've ben studying the game's physics engine and I've ben working on a 'cyclotron' of sorts to study the aerodynamic drag or general resistance as I call it and how it scales. im hoping to get a video out covering my findings soon. there are lots of creative people in the community witch is good but it hurts me to see innovative people getting swept under the rug and how over saturated the game is with nonsense.

Somebody looked at the game code and came to the following conclusions: 1. Efficiency scales exactly as I assumed 2. Batteries and gasoline don't seem to have a difference, so the electric engine and gas engine should be equally efficient 3. Past a certain point, fuel consumption doesn't increase linearly with weight, but with a square root. Source(See for more details) www.reddit.com/r/ScrapMechanic/comments/jcciqu/ive_used_science_to_determine_which_engine_is_the/g91tkll?context=3 I also made a Steam Guide, so if you want to stare at the beautiful data some more, here you go: steamcommunity.com/sharedfiles/filedetails/?id=2259205345

All I can say is that I wish I found this channel a year earlier from now. Legendary content!

I like your humour, science and montage. You are the best)

Damn, I enjoyed this video a lot more than I thought I will

Thanks for the info, I can now make more efficient cars

The normal like, consensus or design is that electric engines have better torque, they are better for moving something heavier than a gas engine, which provides speed, that is the main difference between the two, they are about equal in efficiency according to the data, but if you want to go fast, strap a gas engine on there, if you want power, strap an electric engine on there, this is how they were created, with these two functions in mind. Of course this logic isn't perfect, at times the speed counteracts the torque problem, but from what I've seen, this is how they work.

to add a little fuel data. this boat steamcommunity.com/sharedfiles/filedetails/?id=2111343664 use 2 lvl 5 thrusters. with settings on max tank last like 30 seconds. but set to half power tank last 2 minutes. same if you add a 2nd engine to your car and lower engine setting you will gain torgue + power + you actually save fuel. they need to be lvl 5 to be most fuel effecient.

Ma man, this eddeting is dang awesome

That compare electric to gas engine was very cool. Thrusters to engines was like compare bananas to feathers... But still didn't know upgrade thrusters decreases it's weight.

This was helpful!

The greatest mind bestows his great knowledge, on to our world 🌠

The way you carried out the experiments was so interesting to watch

I would really like to see a revisit that takes into account the weight of the vehicle, not just the wheels. I've definitely noticed my car using more fuel when I hook a trailer to it, and my mining rig consumes significantly more despite them both being 4WD with large wheels

You forgot the mountable spungun. Instead of fuel uses potatoes, but it´s like a thruster.

Ok I saw this a month and a half after you post. And there now some thing new that changes how to look at the gas engine. Oil easier to get then before with the oil pools. And battery are hard to make. Also when testing the gas engine most the time your only moving a wheel. so the weight of the engine was not in the equation. where the thruster has to move the wheel as well as it own Weight. But that said it still not as efficient as the others. Fun video even the bots want in on it. :)

the end was funny. and at first i thought the lvl 5 thruster at the same power lvl as a lvl 1 increased because the lvl 5 thruster can speed up more but it is because of the weight

I am utterly amazed that you did all those tests legitimately in survival mode. I would have enabled unlimited inventory. All very interesting, but didn't answer the question everyone asks. "How many wheels do I connect to my engine?" Maybe you could do a sequel?

3:05 IS THAT SCRAPMAN'S HANK ?!?!

dang i am late!!!!!!!!!! But great as always

so if you had 2 lvl 5 engines connected to 2 wheels each, would that be more efficient in fuel than having 1 engine lvl 5 connected to 4?

gr8 job

15:40 I want to build a helicopter in survival and holy shit getting 16 thrusters to level 5 is pain...

Ótimo vídeo =-)

Can you do a sequel that includes engines added by the Fant mod? Cause i am curious what mod engines have for fuel time as well ^^;

pretty sure fuel consumption is mainly based on the weight of the contraption edit : source: one of my favourite scrap mechanic yters beginning with k

Which one of these you recommend for mining wehicle drill's

What editing software do you use? Thanks for your answer

What about the difference between large and small wheels?

What about pulsing the engines? like having them turn on and of every .5 secs

either you can worry about this, or you can use a level 5 controller with 5 bearings per wheel to have infinite fuel

Although electric engine is better, gas engine is better imo because gas is easier to acquire, especially early-game.

what editing software do you use

I think the lvl4-5 gas engine is the best

Can you do a part two by doing different power levels

What editing software is that?

Enchantement Effency 5!

2:20 i didnt know green bots can eat engine 👀

Now compare it to a controller powered car ;)

Oh cool *parks my piston engine car*

Is no one won't gonna talk about how much dedication this man put into this video for us.❤

get on the roof of the shop to run your tests...no bots

19:57 so build a car for that

Good video there has been effort put into it. But i dont like the sounds effects

You should get in contact with kan gaming

well that explains why my Hemtt is such a hog xD

I have bugged engine because it don't have fuel but its working on full power

Just use 1 gas and then the amount of time it takes to run out times 10 easy

since the thruster seems so all over the place with the results... why try tons of different things to get tons of different results when you could have just ran the same test on the 1 wheel and multiple wheels multiple times lets say 6-10 times... and then get the average... just like any ordinary person would have done and then do all the extra stuff too...

BUT!! can you fly whit the scrap gas and elecric engine??!

you lost me at the math xDD

thruster

There is one problem. The electric engine need battery and battery is very rare

Efficiency means less fuel used

Your tests are quite misleading. The fuel consumption for the gas and electric engines is based on the work that they do. Spinning a small wheel on a bearing requires almost no work because the friction is very little. The friction also depends on the speed. If you wanted to compare more accurately the engines you need to give them the same work to do and test them with different work loads. One way of doing this is by pushing the wheels with something with a constant force. This way the friction force will be constant. Then using the total number of rotations you can get the distance that the force was applied over. Multiply that by the force and you get the energy. So in terms of relative efficiency you an just compare the total number of rotations when applying a constant force. Your test already does that to some extent but the friction of the wheels on the bearings isn't constant so it is not perfect. The gas engine uses a type of bell-like curve to determine the torque based on the speed, similar to a real life gas engine (it has a little bit of torque when not spinning, increases to a maximum at some relatively high rotation speed and then gradually decreases at higher speeds). The Electric engine tries to spin at a very specific speed and can apply quite a lot of torque regardless of the speed. The thruster functions in a completely different way. It applies a constant force and consumes a constant amount of fuel regardless of speed. This means that in theory you can get as high efficiency as you want because by moving faster it does more work per unit of fuel. In practice the air resistance limits this quite a lot. But if you have enough engines or a light enough flying vehicle you can move fairly efficiently by just going as fast as possible. Oh, and let's not forget that the thruster lets you fly :) .

Trusters are for flying builds not for wheels lol

And heres the problem you cant measure thrust in rpm as you cant measure a wheels engine power in thrust

did u know that the scrap engine use even less fuel than the lvl 5 engine u think im joking? nope watch one of scrapman's survival vid that the consumption rate is so low from using as a drill one drill les consumption unless u want use all of the fuel fast use it as a wheel xd one drill while no weight on the scrap engine is so low u can even use it without the container dunno y but thats how it works.... u will know what i mean when u see it

The video: (literally explaining which is the best engine) His voice and the background voice: Theese people deserve to feel like in hell even in the overworld.

controller is most efficient

The bigger wheels uses more gas

So the heavier car the more gas needed

You can save time by using cheat engine and speeding up game 2 times

wait a second piston engines are more efficent cause they got unlimited fuel and faster speed then a controller

electric engines are better for weight but bad for speed

No Guess.... look in the files... there is no Magic hidden.

why would you test that on your survival world and not just use dev mode to spawn the parts you need.. so unnececary..

sus

He sounds german

bro robots eating your electric engine only (racist robots)