What's The Best Supercharger? Roots vs Centrifugal vs Twin-Screw vs Electric
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- Опубликовано: 28 май 2024
- Comparing The Four Most Popular Superchargers - Which Is Best?
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What type of supercharger should I use on my car? There are a lot of options for forced induction, whether going the turbocharger or supercharger route. Superchargers typically will offer better throttle response, and can offer better low-end torque, however they ultimately are less efficient than turbochargers. But if you decide to go the supercharger route (great decision by the way), what's the best option? In this video we'll discuss the advantages and disadvantages of the four most common supercharger styles for today's cars: twin-screw, roots, centrifugal, and electric superchargers.
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This video was made purely to show off his supply of eggs and toilet roll over us.
@@FixingWithFriends Be well citizen!
@@FixingWithFriends still no clue how you use the seashells. Lol
That was funny.
Little did you know how big a flex the eggs would be today
Lol
"Hello seller,
Are you accepting low ball offers? Do you know what you have?"
LMAO, this is one of the best ads I've seen on RUclips.
You want to make sure you get the important questions out of the way!
I know what I got! It's a rare color! They only made 10 of these with this color, specific trim level and with this engine. I will accept no less than 5x normal market value.
@Jeronimo Stupenengo Pefaur It's unique after all, no other car in the world was totaled exactly on that specific way. It's a custom job.
Hows the type r bluid?
There is *no one* who explains highly technical automotive concepts as concisely as you while maintaining the viewer's interest throughout the discourse. Amazingly informative content. Subscribed!
The twin screw supercharger on my E55 AMG spins at 23,000 rpm. Still blows my mind.
Theres turbos spinning 120k+
Heads Mess before the FIA decided to limit revs, the 2.4L V8s in F1 could have done 20k.
That’s not anything special.
@@nodo7575 like you?
and your engine
Positive displacement supercharger disadvantages: weight, size, increased specific fuel consumption, noise
Americans: "So, basically no disadvantages, then?"
But that noise tho... have you heard the demon?
Pretty much.
@@kausarde4974 hell yea!
If u see any of these as disadvantages you are obviously british
The noise is awesome, look at Terminator Cobra compilations
I just like the
nyeeeee sound
Wheeeeeeeeee ❤
Haha supercharger go wrrreeeeee
Save some money and install a bullhorn under the hood with an mp3 of the sound. Hehe
just like an old GP car, before Formula 1 was invented
Can't believe he left the whooosh to tsutututu to nyeeee curve out
4:15 did he just say apex seals ....
Rotary eurobeat intesifies
Did he just reference weeb garbage...
Will to live decreases
Don't be that guy.
Rotaries are the closest ICE to the perfect motor (electric)
Can someone please explain what that means? 😂
@@iWakhloo eurobeat meme? Reference to Initial D racing anime.
The comparison between rotary and electric tho no idea (at best power to weight/size...)
Jason: "Apex Seals"
Me: *Laughs in Wankel*
Wankel
*cries in oil consumption
Joe Jackson “Rotard”
Top Fuel drag racers rebuild their engines between runs, I bet they rebuild their superchargers too!
Apex Seals are the most epic sea mammal.
Jason, it’s 2:38 am, I was considering sleeping until I saw this notification. GG.
Thanks for staying up, I promise this will put you to sleep! ;)
Man's got his priorities sorted
Didn't fall asleep. Task failed successfully
NZ knows where it’s at
Thomas A yea man
When you see a man holding a supercharger, you click that video.
I know I did. 😄😄😄
Gale Banks made an interesting video on the roots / screw supercharger comparison. The whipple screw type was alot more efficient putting far less heat into the charge air.
For Science, you should test each of the 4 superchargers on your Miata so we can see the real-world differences ;)
At the same time.
@@SevansVII LOL! multi-stage boost. The whole engine needs to be titanium and all the superchargers will stack vertically or across the engine bay. I like vertical!
@@SevansVII quintiple charger system.... that's what I call illegal
The best is the one with the loudest whine
I'm mesmerized by the high pitched whine twin screw superchargers produce
Procharger noises are freaking sweeet
Get a wife then :D
@@jvjh777 Was just about to comment something similar... :'P
@@straight_intro it's not just the sound of the blower but the incredible sound you get from the exhaust. When I first ran the D3R from Procharger many years ago. My little 408 sbf sounded like it turned into a 1000ci mountain motor.
Great day... Engineering Explained and Chrisfix dropped videos.
Bri Hal nice. Gotta check out Chris next
Maybe they planed this (they are friends right)
Yeah can you imagine these 2 as brothers at the breakfast table?
@@BuddyRHS1965 I'd like to sit at that table!
I laughed a bit to hard when you showed the Tesla Supercharger 😂
For those of us who live at altitude (ie, I'm in Denver at about 5,200 ft), can you discuss how this affects NA, supercharged, and turbocharged engines? Thanks!!
Don't you just need more boost? 🤔
@@petrolmonkey6891 petrol monkey what an og name
Altitude normalization occurs with turbos, so you get the same boost pressures (with some more lag, but not much) and essentially the turbo RPM is just higher to reach those pressures, because the control mechanism is seeking a given air pressure so the turbo spins faster and you get there. Potentially there could be more wear but I haven't heard of anything to that effect. Altitude normalization turbos are also a feature on some aviation engines.
As a general rule, a naturally aspirated combustion engine will lose 3% of its power for every 1,000 ft of elevation gain. If you have 100 horsepower at sea level by the time you get to 5,000 feet of elevation your engine is making 85 horsepower. At 10,000 feet of elevation your engine will make 70 horsepower. That happens because because there is less air to feed the internal combustion engine.
Turbocharging at elevation is an efficient way to minimize horsepower loss due to elevation and lower air density. At high elevations turbochargers compress more air into the engine cylinders making up for the lower air density allowing the engine to produce power as if it was at sea level. This extra tunability is found only in turbocharged applications.
Everytime I get reminded on the decent hit to power engines take up I think back to WW2. In the bigger picture 5,200 feet is nothing, 1 or 2 stage single speed superchargers were good up to about 15-17,000 ft/ 4572-5181.6 meters. The system was just fine if your mission profile didn't dictate needing to get high and fast.
This next bit is an awesome little test on reading comprehension and if you're an adult or an oversized child. The Merlin engine wasn't special BUT it's supercharger is what set it apart. The Allison was a great engine and in many ways superior to the Merlins, so much so folks still using Merlins in aircraft and boats use certain parts from the Allison. It's turbo system didn't fit into single engine fighters well at all and is why the P-40, P-39 and early Mustangs weren't liked in Europe since they needed thier power all the way up to 25,000 feet 7620 meters. The reason why the P-47 was as huge as it was is because of its twin turbos and all the ducting.
I think there's some interesting history how the quest for power in WW2 aircraft engines gave us the performance in modern cars.
I used to have a electric supercharger on my BRZ made by Phantom at the time. Very cool system. Full boost in less than a second at low rpm about 5psi. Downside was fixed speed so up top only had about 2 psi. Still gave me 4-5mph on my trap speeds
"Whatever You Want"
"Whenever You Want"
cool
Yeah, and no parasitic losses from a belt drive.
Wyndham Coffman you need energy from somewhere
"whenever you want!"😂 That's gonna be so fun on your mx-5 - so thankful for the knowledge you dropped in this video as I'm in the market to buy a supercharger💪🏻
Just call it a Miata. Guys in Miatas.....coool.
@@rmartin5285 but where I am from its called a mx-5, so just call it a mx-5
Thank you for this video. Years back it took me hours of wading through useless forum pages and somewhat obtuse manufacturer information to learn the difference between the roots style and twin scroll superchargers. Finally, now it is concisely compiled here in one video!
3:55 That finger there is why we put clear covers on moving cutaway displays.
I love how you explain things, so that they are easily understandable.
That means he truly understands the topic
This is not the first time I have been thinking of a subject for a few days then you drop a vid explaining it, where would I be without you!!
I am reminded that when VW Beetles with swing axles were flipping over while MB cars were winning races with swing axles. Execution is everything.
We had a procharger centrifugal with air to air intercooler on our gmt400 454 vortec. It was a good pairing as it kept pressures low where the torque was already strong and helped it pull hard up top while netting slightly better economy. Not a ton of boost, about 4.5 psi at my elevation, but it also meant I could safely run mid grade instead of premium unless it was hot or while towing. Putting 40+ gallons of premium in kinda sucks. That brick was a lot of fun
Hey, anyone here knows can we make a centrifugal supercharger spin at the max rpm for maximum boost like a turbo equipped with anti turbo lag??
@@JohnKickboxingthats going to be hard unless you can find a cvt capable of insane rpms
Thanks for the video. I was under the impression that both the roots and twin screw blowers compressed air in the supercharger housing and that the only thing that differentiated them was the shape of the rotors but it looks like this is not the case. When I selected a blower for my Mustang I decided to go with a twin screw design. A case could be made going with a centrifugal blower (smaller, less weight, less costly, more ultimate horsepower) but I opted for a design that would provide more and quicker torque and I'm glad I did. In addition to having far more torque in my normal operating RPM range (2000 - 5000) it performs flawlessly and does not create the hard starting characteristics that some centrifugal blowers are known for.
yea for coyotes the centrifugal superchargers don't really make sense imo, they're already rev-happy and need some low torque to balance out the driving experience
I love the low key humor you've developed in your videos, Jason. Cracks me up.
You are very through and your entheusiam is refreshing!
Love your quick and concise style. My how times change -- i remember when two Holley DP on a 6-71 was the gourmet setup for our hotrod customers.
Ahhhhh the double pumpers, those were the days. DP's and big blocks.woooohooooo
Love this video Jason! Would love to see a video in the future about the pros/cons of a 5-valve OHC cylinder head! Saw a video recently about the Toyota TS010 and it was claimed that this setup put out more power in the high AND low rpm’s, and it was the more efficient, I would love to see something about wether it’s true or not, using that engine and the 4A-GE 4-valve and 5-valve for comparison, keep up the great content thank you 🙏🏼
Many years ago, I read in a hot rod magazine about an outfit that had designed an axial flow compressor- like a jet engine compressor section, with rotor and stator blades. They claimed to be able to pump up great pressure without adding frictional heat to the incoming air. It was belt driven, like the Roots and the twin-screw (and centrifugal). The only added heat was from Boyle's Law.
I could answer the question before watching, but learned more about why. Excellent work
So when are we going to see you putting a supercharger in the MX5?
Fingers crossed for June install. I want to get it on a dyno so I can show before/after, and that depends on when tuning shops start opening back up.
@@EngineeringExplained Oh totally forgot about that. It's getting more relaxed here in Central Europe (Czech Republic). And car shops/services where opened during lockdown (but I don't to what extent).
@@EngineeringExplained I m looking forward to at least 850 hp
@@EngineeringExplained Looking forward to that! But I heard so many stories about ND gearboxes grenading. We might see the NC MX-5 gearbox retrofit afterwards 😁
Engineering Explained
They don’t have to open up to do a private test!
Great video and info. Wish I could have viewed it back when I was a kid, 40 years ago. Centrifugal type superchargers are dynamic devices as opposed to their constant output Positive Displacement counterparts such as the Roots. Centrifugal type simply convert velocity energy into pressure energy via diffusion (learned that way back from Hugh MacInnes). So you speed up the air to very high speeds and then rapidly slow it down and pressure builds (Kinetic energy 1/2mv2). That is why the output is non-linear. For the roots and screw comparison you mentioned, both push the air out. Internal compression that you mentioned? Probably not the right way to look at it. Both gulp and slap the air hard in the lobes/screw which induces heat, difference in adiabatic compression efficiencies.
This is really well explained. And in multiple ways-good language/communication skills from the presenter and very useful diagrams/animations.
Thank you for making this!
Your excellent at explaining things. Thank you for all your videos
0:02 that supercharger looks like at 1980s camcorder
Hal I am about to piss myself laughing at that comment. You nailed it sir lol!
Thanks for clearing up the difference between roots and screw superchargers, very informative and interesting. Now all you have to do is comparison between superchargers and turbochargers and the efficiency each has or doesn't have ie the parasitic effect on horsepower and the fuel wasting on both a supercharger vs a turbocharger.
Looking forward to seeing how your roots performs on your MX5.
Though twin screw superchargers actually spin the same way as the roots blowers
EXCELLENT JOB ..You gave me all the info I was looking for and explaining well. Thak You
Just found your channel and what a nice find. Lots of great content, information is solid and easy to understand even for a guy who only had high school auto shop...in the 80s so it was actually great looking back. Videos are great. Thanks!!!
I can’t wait to hear your thoughts on the roots style on your MX-5 vs the centri on the S2000 👍
Roots or screw?
@@HappyHarryHardon 6:00
I'm beginning to think that i just simply couldn't live without this channel... 😂🤣😂
Nice presentation, very informative. Thanks for sharing!
Thanks for the clear, intelligible explanation. I have to admit I didn’t really know the differences between these, but now I can sound like I know what I’m talking about with my gearhead bros.
5:59 you made my choice for me. 😄
"Do you know what you have?" 😂😂😂💀
Real non-bot only buyers please. I KNOW WHAT I HAVE.
:D :D :D I was laughing harder than I should have at that one, too :D :D :D
Previous Mercedes Benz vehicles like e55 amg, sl55 amg and all the Kompressor motors.. nice video. I am a mechanic with knowledge of most of the concepts you discuss but love your videos.
Thank you man, this is a good lesson, I had a basic understanding about the different types but not in detail 👌🤘👍
7:27 The Humble Mechanic at work lol.
For some unexplainable reason, I suddenly feel like I need "WHATEVER I WANT!"
You're brainy. Well done. Appreciate your efforts and hope you continue the great and good work you've done.
Very clean explanation of screw vs roots.
No Wolkswagen G20-G60 "Spiral" supercharger? That is an interesting one to mention, maybe next time.
No Rolls-Royce rotary supercharger, that was used on their diesel rotary, either. Also the 'spiral' supercharger is called a scroll-type supercharger, or G-lader. Also no mention of sliding vane, axial compressor, or pressure wave superchargers. There was also no mention of variable ratio centrifugal superchargers. None of these were mentioned because of how commonly available they are from OEMs and aftermarket companies. Roots, twin screw, and centrifugal are vastly more common than any of the other ones mentioned here.
I'm also not really sure why electric was thrown into the video, as that's a drive type, just as exhaust driven and mechanical (belt-, chain-, gear-, and direct-) driven are the other two drive types. A better video for electric to be shown is when comparing supercharging, turbocharging, and electric-charging on the same centrifugal compressor.
Even more interesting: I work with a guy who has a g-lader, in use on a car, that has not failed! Maybe the only one. ;^)
@@xaytana whoa that's the 1st time I've even heard of a scroll compressor as an ICE supercharger. I've only known them from heat pumps/air conditioners.
That Rolls Royce diesel Wankel was pretty much a series Wankel engine when you think about it wasn't it? One chamber compresses to the other one where the combustion happens, like half an engine (if not more if it was bigger) just for the boosting.
I can understand why he added the electric one to the video, probably just to clear up the doubts about what it actually is.
They work very good, as long you replace the apex seals and you keep the small belt in good shape. If not.... bam.
Of course I had the same problem with a BBM lysholm (twin screw) supercharger kit and our crappy roads. Those very tight tolerances didn't like being jarred around. Just one bad one at the wrong time and - crunch. Expensive lesson.
I ultimately gave up and just changed the whole 8v engine out for a 20v 1.8T. No more supercharger problems, more top end, and much better mileage when not at a track!
@@xaytana Torque curve tells all as far as centrifugal is concerned. He's already given it away here. Electric has flat curve because it doesn't have to follow engine RPM. turbocharging and supercharging do.
When I can't decide what to watch, Engineering Explained is usually a safe bet
Thanks for keeping the ads concise and in time with the video. Cutting to ads and mixed volume/tone ads get muted, yours were very tolerable and it's great to see companies interested in sponsoring your content. It's some of my favorite to come home to after work!
That's some nice supercharger for the MX-5, thrilled to hear that noise and see the power it makes🙏🙏🙏
The REAL question is: which one of these will make the biggest power bump for my Prius?
You're definitely going to want all four.
@@EngineeringExplained And a turbo! pentacharge that thing!
@@jorge8596 , don't forget to include a compressed air tank that can be used to spool up the turbo faster to avoid lag.
@@EngineeringExplained hahahahaha.
Don't forget NOS!! :-D
Search for "Coltrane's Planes & Automobiles: The Supercharger"
The famous Scottish comedian did a series on engines and that one talks of the origin of the supercharger.
Interesting was the Germans had a clutch that engaged the supercharger when the driver demanded it compared to the Brits having it always connected.
Obviously, this came out of car racing and into fighter planes...
Excellent presentation..very knowledgeable
Love your posts and can't wait to see what you do with the Mx5.
Thanks for this! Me? I like turbocharging (actually, turbocompounding) a lot better than mechanical or electric supercharging, but that is because I am fixated on efficiency. I just can't stand the thought of all that energy being thrown away, down the exhaust pipe! I would much rather recapture that energy and use it to move the car. I appreciate your openness to all things engineering. :-)
Has there ever been a turbo-compound automotive engine?
Gort The closest thing I can find closest to turbocompounding on automotive application is Garrett e-turbo. They installed a KERS-like mechanism in between the compressor and exhaust side of the turbo to charge a battery, storing energy for spooling the turbo in similar manner to e-superchargers Jason explained.
Buuuuut that’s just me googling for about 10 minutes so I could’ve missed a thing or two here.
Julio Jonathan
That sounds like the current MGU-H if F1 (motor generator unit - heat).
What’s a turbo compound?
@@gort8203 The old two stroke Detroit Diesels ran an engine driven blower and exhaust driven turbo charger. The 6-71 blower used on hot rods is the blower off the 6-71 two stroke diesel.
@@gort8203
Great question! First, before I get to that, I want to define "turbocompounding". The turbocompounding I am speaking of is not a series of turbochargers, each pressurizing intake air and handing it off to the next. Turbocompounding is using the energy in the exhaust gasses to not only pressurize the intake air, but to also provide more power to the engine. Either the power turbine or a second turbine is connected to the crankshaft. The Wright Cyclone R3350 radial aircraft engine used turbocompounding to make way more horsepower than just with turbocharging alone. My father worked on R3350 engines for the airlines: the turbocompounding system was simple and very reliable. It was just a set of three turbines that were spun by the exhaust gasses and were geared to the crankshaft.
Now, as far as I know, turbocompounding has been successfully used in aircraft and in over-the-road trucks, but not in cars.
MX-5 vid Jason "its got enough power". This vid also Jason "here is the supercharger to go on it".
Hmm.
Yeah, it's a dilemma. The MX-5 has enough power, just not enough so that it can't benefit from having more. But there are very real downsides to what Jason is doing. It's not cheap, it adds weight on the nose of the car, it puts additional stress on EVERYTHING related to making the car move, and it starts you down a path of 'needing other improvements to cope with the additional power'.
So the smart thing to do is leave the car alone, and enjoy it for what it is. But that requires a level of self-discipline that must be beaten into a car enthusiast, over decades of wasting money and ruining perfectly good cars.
Ask me how I know...
@@michaellorenson2997 Do tell good sir, how do you know?
Thank you for helping me. You just helped me learn alote more. Thank you for what you do.
Quite informative, prior to this video I didn't fully understand the differences between the roots and twin screw styles!
Had to yell at my kids to look away when you put that egg in the toilet paper roll. I don't even have kids.
Put a supercharger on the Crosstrek :D
naaah mate
Felix Beutin why not? A more powerful Crosstrek would be epic!
It will still have a CVT
@@ALMX5DP is it necessary ?
This video will help the DIYers
Thanks for help me understand this subject. My favorite car [The Challenger] uses twin screw.
I would love to see these kinds of videos for every Miata upgrade you do. I have a 2017 MX-5 RF so I am trying to figure out what to upgrades to do, in what order, and which specific parts. I followed your advice and just got some new tires. I went with Pilot Super Sports for a little smoother ride at the slight sacrifice of some dry road performance of your Potenzas because it is my daily driver.
What was that crazy engine in the beginning? Two sparkplugs but only one huuuuge Valve.
Hellcat 6.2L V8
Any aircraft piston engine,. . .
@@dewiz9596 Many aircraft engines are 4 valves...
But how does this even work with just one valve? That's a video for itself worth.
oxdudepoege the exhaust valve is just not visible from this angle, it’s directly behind
Roots, twin screws and their differences have always confused me. They still do.
One compresses air and keeps lower temps. The other doesn’t.
I enjoy your presentation, thanks!
Now I know the type that i want to use. Thank you for what you do. Thank you. You helped me alote.
The one that does a loud REEEEEEEEEEEEEEEEEEEEEEEEEEEEE
dont tell me what to do "I DO WHATEVER I WANT"
"Whateva, whateva, I do what I won't"
This dude is the perfect mix of car dude and nerd. Love the show man🤙
Edelbrock SC for the ND MX5 is so much fun
Twin screw superchargers have eggs.
2:28
Reminds me of HowToBasic lol
“How to build a supercharger”
Jason is... How to basis
I am so glad none of my Professor.'s explained things like you do while I was doing 4 years of Electrical Engineering School!
Don't know how I stumbled onto this guy's videos but I am now a huge fan.
I remember when electric superchargers were a joke... Guess someone managed to make it work?
Million Mile Drive I am taken with that concept engine that did away with the serpentine belt. They stuck a generator between the driveshaft and tranny, and that produces 48V power to run climate control and so forth. Those would benefit from electric supers.
I dont care what's the best, they sound 10x better than any turbocharger.
The end.
Wow I was studying the topic of superchargers and you dropped this video, what a coincidence 😁
Another EXCELLENT PRESENTATION. 👍
Uploaded 10 seconds ago
I think Tesla has the best SuperChargers!😎 The other SuperChargers have too many moving parts, and use combustible liquids.
Definitely like the fast forward supercharger kit for the Miatas with the upgrade to the tvs900. Nice setup. Cold side mounting and does not require an intercooler
Love your educational videos as always
Great video! Do one on sizing a turbocharger!
This was so well put together
Dude I have been watching you for years, you are super incredibly intelligent. Any car company would be so very fortunate so employ you. If you are able to do this with the limited resources that you have at your disposal, the sky would be the limit if you had backing of a major auto manufacturer. Good luck
always love ur drawings. they are great
Great video now you Know how to get power WHENEVER YOU WANT.
I will be installing a TVS supercharger from Edelbrock this weekend. I'm excited to see what it can do!
I remember watching him back in the day. Keep up it big guy
I ordered a Torqamp and I can't wait to test it out
I’ve had both the PD and centrifugal on cars. All of I have to say that the 2200R on my C7 put out over 1000whp and still made max torque at 3500rpm and held to redline. If you mashed it, it would be like flipping a light switch if in the right gear. The PD blowers where much easier to modulate but they also lit up the tires from a stop.
Great explanation boss
I’ll keep it simple: just a wonderfully done video!
can't wait to see your results on your ND
I came close to buying one, but a Focus ST was more practical for me. Still kinda want the Miata or Audi TT.