Modern advancements in design of the Roots style Supercharger by companies like Eaton have greatly improved the thermal efficiency of the the design to approach that of the Twin-Screw. The Roots principle is the true "blower", in that it does NOT compress any air within but merely pushes greater volumes of air into the Intake manifold where air-compression can occur. The Twin-Screw is where air is squeezed between the lobes of the screws within the Supercharger to raise compression. So when no boost is required on the Roots, you just have a valve installed that when opened can divert the excess air to atmosphere with minimal parasitic load on the engine. The Twin-Screw is always acting so a blow-off valve is needed to lower the intake charge.

I think one interesting topic is to discuss the different types of starters used to start engines. Crank starting, electric starter, inertia starter, spring starter, air starter, and whichever ones there are as well

@kevinjones3900

Жыл бұрын

Shot gun cartridge Napier ww2 plane engine. A dangerous start for sure

I have a supercharged CTS-V coupe. I recently had headers installed and a larger exhaust system. I noticed that even though power output increased on the dyno the boost pressure had dropped. This is because the restriction on the exhaust system was reduced, allowing for a more free flowing engine offering the same power output at a reduced pressure. I had expected power output to actually increase significantly but I really only gained about 40 HP (540 Wheel Horsepower). I think this is because I am not burning enough fuel to match the increased airflow so next will have to be be larger fuel injectors and fuel pump. Once this is done I can then speed up my supercharger with a smaller driven pulley to get more power. Point here is, as the article stated, just sticking a supercharger on an engine doesn't mean you get a lot more power without changing other parts of the engine as well. In fact, too lean can cause all sorts of engine problems and increasing airflow too far without increasing fuel can cause serious damage to your engine.

Couple issues, Roots do not compress they are just positive displacement. Screws rotors are not identical, one is the negative of the other and the increased efficiency comes from that it compresses and is also positive displacement. Centrifugal supercharger do have lag as they only compress and are not positive displacement, are essentially a belt driven turbocharger (the worst of both worlds).

@needmoreboost6369

Жыл бұрын

What do you mean “The worst of both worlds”? Pro charger would disagree and the on track results in circuit and drag? And any time air is pushed into any engine at any increase in pressure it’s compressed air isn’t it?

@bluesky-ud9wg

Жыл бұрын

So you don't like Cent blowers?

@Surestick88

Жыл бұрын

@0:38 "explosion" LOL, no.

@Aereto

Жыл бұрын

@@needmoreboost6369 The spool-up is a major deciding factor in the diameter of the compressor. Too large, and the RPM required may be too large for a car to tap into the power potential in a practical setting. Too small, and it exchanges earlier RPM peak power for sooner pleateau of the engine.

@Noooo23523

Жыл бұрын

the centrifugal i think it doesnt lag but it just puts pressure by rpm constantly like all superchargers but weaker

Even know i understand the main concepts of superchargers/turbos I still loved watching this and it was very informative, love it

Like the jack-of-all-trades thanks for giving me the visual I appreciate it I need it as far as the you know physical aspects I remember looking at the specs periodically either way thank you very much I needed it

Liked this video. Awesomeee content on Superchargers 💗

@TheEngineersPost

Жыл бұрын

Thanks

thank you for this video

@TheEngineersPost

Жыл бұрын

Welcome!

Well explained about super chargers Thank you 😊

@TheEngineersPost

Жыл бұрын

Most welcome 😊

Nice Explains. You forget to explain Comprex Supercharger type?

A good video topic could be on the electric turbo like the MGU-H which is used in F1

This video is very helpfull for all Automobile Engineer and future engineering THANKYOU THE ENGINEERING POST im a 3 yers old member of this channel

@TheEngineersPost

Жыл бұрын

Thanks for your support

I really wana go up the road and grab an electric supercharger to have a play now. Damn you lol Very well explained. 👏

@kevinburke6743

Жыл бұрын

So when you see a Merc with kompressor on the back, is it turbo or super charged? If a supercharger works off the Crank & a turbo works off exhaust(old skool) or electric. Why not forget about super chargers & have the turbo kick in from start up the accelerate as the car revs climb?

@needmoreboost6369

Жыл бұрын

@@kevinburke6743 rip conrods! all the boost none of the revs! I don’t know why no one does that lol

@needmoreboost6369

Жыл бұрын

Just buy a real turbo!

make a video on fuel system if possible

I love those type of things especially when the supercharger or blower or pro charger over boost the engine and cause destruction

Can you run the rotors them backwards directions and what happens to the air flow when you do?

@TheKittylord

8 ай бұрын

There won’t be any oxygen in the engine so the fuel won’t combust

Good video

@TheEngineersPost

Жыл бұрын

Thanks

Now I know how Supercharger’s function & how advantageous than the Turbocharger. Thnx for the lesson.🙏

@michiganengineer8621

Жыл бұрын

The advantage of a turbocharger over a supercharger is the turbo uses WASTE energy to increase the boost, a supercharger leeches some energy from the crankshaft to spin. Or from the electrical system if it's an electric blower.

@SodiumSyndicate

Жыл бұрын

@@michiganengineer8621 Turbocharger is passive charging, Supercharger is active charging.

@yowhatsup9909

8 ай бұрын

@@michiganengineer8621 Turbocharger DOES have a parasitic effect on the engine too, but it's minimal compared to supercharger.

Nice! But the Comprex?

Please make one video how to work outboard motor engine .please please please 😔🤔😥

Nice

@TheEngineersPost

Жыл бұрын

Thanks

0:40 even though it's old and rusty ,still very gorgeous

I have a 09 Pontiac G8 with F-1A-94 Procharger feeding a LS 416ci and on full e85 puts down 1000whp!

Please made a video on how turbos work

simply put, superchargers compress air, so the same volume builds up inside the comustion chamber, but more air molecules will be there, meaning it has greater explosion power.

Emd has the best supercharger system as it combines both supercharger and turbocharger into a single unit.

@needmoreboost6369

Жыл бұрын

It’s a novelty but for all the hard work you could have built the engine better! and used a better turbo! and destroy anything twin charged as the supercharger isn’t worth it’s weight on a modern engine! And even the best high end superchargers would become a restriction even compared with an eBay spec turbo of similar capability

@twddersharkmarine7774

Жыл бұрын

@@needmoreboost6369 to be fair, the EMD system was used in Prime Movers, aka, Locomotives, for cars, yes it is certainly better to use either turbo or supercharger

I read that each pound of boost increases engine temps by 10 degrees. If this is the case, seems to me that in many forced induction applications the engine is going to suffer an early demise.

@1earedwolf

6 ай бұрын

Doubtful, because that's the reason intercoolers exist. To cool the air back down after it's been compressed.

I have a G60 Supercharger in my Golf 2 GT from 1989. The motor is an 1.8 GTI G60 and with sone tuning the motor makes 230 Horsepower.

@prodiy3173

6 ай бұрын

I’m massively into vw’s (mk1 golf,mk1 caddy and mk4 v6 4 motion ) and love the g40 and g60 just a shame the g=lader needs rebuilt on such a short run time and that they never tried to improve on its design

I have the twin screw supercharger in my dad Jeep Cherokee sport 4X4

What about the vortech v3 supercharger

i have a screw type in my Pontiac grand prix gxp with the v8 and i got it up to 715hp

Tuyệt vời 😊

As a kid going for a operating engineer degree thank you

got an eaton-supercharger in my 2001-XJR-Jag

I got supercharger in my dodge ram TRX and big turbo in my s15

Technically a turbo charger is a form or supercharger. Superchargers do not have to be mechanical.

I want the physics behind roots type air compression, the trapped pocket of air should remain equal pressure throughout so how does it actually compress it further?

Thank you 👍 My teacher SUBSTANTIAL The Engineers Post From Nick Ayivor from London England UK 🇬🇧

@TheEngineersPost

Жыл бұрын

Glad you liked it

You missed the Scroll Type Supercharger (invented in 1905, by Léon Creux) - it becomes famous with VW 's G40 & G60 - the "G-Lader".

The turbo works through the exhaust stroke every half cycle of the four-stroke engine, a slow speed, but a supercharger that rotates with the engine and increases the air density.

@mr.bamboozle3053

Жыл бұрын

is it possible to have both in one car

@needmoreboost6369

Жыл бұрын

@@mr.bamboozle3053 yes

@needmoreboost6369

Жыл бұрын

? Turbocharged engines are far more efficient at producing boost than a supercharged engine! Basically It cost hp to spin a supercharger but a turbo runs on waste

@gv4058

Жыл бұрын

@@mr.bamboozle3053 It can be done just gotta make sure its set up right ( which is sometimes not an easy task ) and that everything can handle the boost.

@dannytechminds423

Жыл бұрын

@@mr.bamboozle3053 Yes

I love the comparison where there is no downside to supercharger lol /s

@needmoreboost6369

Жыл бұрын

Yeah so true lol Except a comparison with the same engine turbocharged is not a worthy comparison as turbochargers are superior in almost every way to a supercharger

@johncanalese588

Ай бұрын

@@needmoreboost6369 If your statement was one of true fact then Superchargers would've died out decades ago - but they haven't! It's all about the "application" or intended use for the vehicle.

Having owned both turbocharged and supercharged cars, I would never get another supercharged car. TURBOS FOR THE WIN!

It's much simpler than you're implying.

Centrifugal supercharges; belt driven or electric suffer from same boost problem found on turbochargers.... when you double the rpm of impeller, boost is not twice as much it's 4 times as much. Boost increases exponentially, 2 times faster = 2 squared = 4. Roots and twin screw have a linear boost curve. Twice the rpm = 2 times more boost. The electric supercharger has great promise. It can deliver precisely the exact level of boost managed by engine computer. Small surge storage tank can capture over pressure and store, rather than venting to atmosphere.

unfortunately i don't have one

Any supercharger can be driven electrically.

The twin screw supercharger's rotors are not identical.

When the blower is bigger than the car's engine, you know you have serious problems.

I always thought the Axial Flow superchargers were cool. No mention here :(

Who watching from India hit like my comment

Thats not more efficient. More efficient wud b to get more power out of the existing air/fuel capacity. Thats more powerful by burning more air n more fuel. Jus thought id point that out.

Just came to dislike and say that electric isn’t a type of supercharger - it’s merely an alternate drive system for the supercharger vs traditional belt drive

There are superchargers that have lag. Those that don't have positive displacement.

Turbo engines ruined the fun of driving.

You DO NOT need a supercharger. They ruin the life of an engine by producing too much heat in the ignition phase. You only have a supercharger to boost performance without redesigning the basic engine block.

Engineers did not "search for ways to give more power", they always seek (historically and spiritually) to make the cars slower, give as little as they can, glorify themselves as much as they can, while earning the same wage, or even demanding more.

@pixelnazgul

Жыл бұрын

It was the drivers (tactique) who asked for this. And often were ignored. Back in the day drivers built cars themselves. Then the royal ass demons came from hell and enslaved (the work force) the racing, and car-building. We had it all... then lost.

Yesterday's news. Everything is going electric.

@yowhatsup9909

8 ай бұрын

9 months later and nothing changed lol.

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