SUPERCHARGER HISTORY - Boost School #5

[@d4a]

AEM ECU: bit.ly/D4Ainfinity5​​ AEM water-meth: bit.ly/2zrOkSp?D4A...​ AEM boost controllers: bit.ly/D4AtruboostX​​ AEM wideband AFR gauge: bit.ly/D4Axserieswb​​ AEM digital racing dash display: bit.ly/D4Acddash​ Support d4a: driving-4-answers-shop.fourthwall.com/ D4A merch: teespring.com/en-GB/d4a-merch​ Patreon: www.patreon.com/d4a​

[@benoitanneheim2063]

What about Comprex and Brown BOVERI?

[@dhanarputra555]

Horsepower sells car, Torque wins races.

[@nagyandras8857]

Horsepower allways wins. No mather what.

[@dukecraig2402]

@@nagyandras8857 That's right, horsepower is the final say in the matter, torque is a component of horsepower and simply a part of the math involved in measuring horsepower. What people don't get is that there's no time constraint on measuring torque, you can take as long as you want to make 80 ft lbs of torque, but horsepower is a measurement of how much time it took you to make that amount of torque, the higher the horsepower the faster you produced the 80 ft lbs of torque. 80 ft lbs of torque at 1,000 RPM's is going to lose against 60 ft lbs of torque at 5,000 RPM's every day of the week and twice on Sunday. 80 ft lbs@1000 RPM's=15.23 HP. 60 ft lbs@5000 RPM's=57.12 HP. He who crosses the finish line in the least amount of time wins therefore horsepower is the final say in the matter.

[@Dysphoricsmile]

Man, if I still had my 1991 Talon TSI AWD 5-Speed, the BEST of the DSM Turbo Trio Coupes - with her SEXY Flat wing and the BEST looking body kit and style by a HUGE margin - which was VERY hooked up, Big 16G Turbo, boost controller that I set to 21-24 PSI when using 93+ Octane, and 18.5 for standard gas - full 3" Exhaust from the manifold back - my tuner/mechanic gave me a HOLLOW Cat! And cause she was a 91, she did not ever have to pass CARB/SMOG testing - of course bigger front mounted intercooler, 750cc injectors - top end rebuild with 1mm oversized valves titanium valves and springs, and cams with a SLIGTLY aggressive profile - halfway between stock and straight track cams, Anyway - when working properly she HAD to be putting damned near ~320+ to the wheels! BUT I REALLY wish I had a Standalone ECU! MY Mechanic was able to flash my ECU as he had 5+ of the DSM trio Turbo Coupes, that he had hooked up himself. And apparently there WERE good ECU Tunes available for my setup, that took into account the higher CFM Turbo with higher boost, more aggressive cams and just higher flow everything. But the Throttle response and peak power would have been FAR Higher with a well Tuned AEM (Back in the day, I was looking at a brand called Apexi that most DSM tuners used at the time) Like the low end throttle response was a bit underwhelming, but as soon as I floored it, well I was able to ALMOST bottom out the rear shocks whilst chirping the front wheels a lot with a hard launch! I wish I could find the picture a friend took when I did a hard launch - you could see the rear was all but bottomed, and the front tires had a small gap under them with the shocks extended fully! The Big 16G STILL TODAY - remains the BEST STREETABLE TURBO FOR DSM CARS! Not even Garret has a better solution for EVO or Talon that is not massive and takes forever to spin up! People USED to think the Mitsubishi 18G or "Frankenstein" 19c were better for street use - but WRONG! The 19c would spool a bit faster, but it was HEAVILY limited in max RPM and therefore CFM -cause Turbo's are DEFINED by the CFM they can flow mostly - because almost ANY Turbo can DO ~50 PSI of boost - depending on engine size to an extent, but they will be limited in how much raw AIR they can flow! Anyway the Big 16G has more flow than ANYTHING you can put on a 4G63T - that is below the 20G Turbo or some of the larger Garretts you could fit to the motor, and 20G and above are NOT good for street use, unless you plan to use NOS to spool your turbo to win highway duels and nigthtime drag races. I blew away countless BMW M3, a Supra, 300ZX, EVERY Honda I ran against as well as all - Camaros, Mustangs, a Ford Raptor, and more on the highway when they were TRYING to pass me! God damn I miss that car... I wish I didn't go broke and was able to afford the then ~$6000 rebuild it needed when I blew the head gasket as well as cracked a cooling jacket IIRC - it was pretty major to fix, after I had already dumped ~$15,000 into the car as a then 20 year old. I had to sell her... But god I miss that car, I do NOT miss the bills from having to replace, literally everything - but I REALLY miss how insanely fast she was, and how SEXY TALON TSI LOOKED! That FLAT Wing and the body kit + the weight savings (~200+ lbs lighter than Eclipse as there was basically no sound deadening) - made her the BEST of the DSM Trio Turbo Coupes!

[@JesusSaves86AB]

Never forget your Roots.

[@supremeinstinctvegeta9861]

Underated comment

[@ritzevespa]

And boots

[@kanck7909]

hmmmmmmmmm🙀😺

[@JesusSaves86AB]

@@ritzevespa Puss & boost

[@ritzevespa]

@@JesusSaves86AB I knew that was coming 😂😂

[@bobross6677]

Ive come to find you're one of the few that actually does the whole historical overview and actually explains in detail how these things work without putting me to sleep ive really come to appreciate that

[@davidmiller9485]

and yet he missed the WWI examples of Super chargers that were used.

[@Chevycamaro-rg6sd]

@@davidmiller9485 didn’t they use them for planes?

[@ZPartySmarty]

​@@davidmiller9485 ⁹99999999999999999999⁹

[@vintagetrikesandquads4012]

Funny stuff: racing a car "with the structural integrity of a coffee pot and the suspension of a stool."

[@VK2FVAX]

Oft proceeded by the mystical phrase "Hey Bruh.. here, hold my beer and watch this.."

[@mry82]

... and unobtanium testicles...

[@austinthomaswoolery]

That's funny. As he was saying that I read this.

[@HDB316]

Don't forget the engine of a clock.

[@RS-pe5hp]

And that was not special, in 1936 Auto Union type C got 6.0 V16, 1 or 2 stage supercharging (roots) up to 520HP, 850Nm and 824kg on wheels made from ...... rubber I guess with no safety at all.... Compared to that, modern racing drivers are not in danger at all....

[@t3h51d3w1nd3r]

Before turbo became a mainstream word around the 80s, they used to be called turbine driven superchargers or turbosuperchargers. They weren’t considered so different as we think of them today. They would have called anything that created boost a supercharger but today everyone calls the electric ones, electric turbos but they should be electric superchargers.

[@codyblea3638]

OG racers could have gone quite a bit faster, only issue was weight from their balls slowing down the car.

[@nyftn]

rofl

[@droplifter3435]

Handlebar moustaches and mahogany pipes being smoked added drag and excess weight. And running over spectators every few minutes limited speeds too.

[@christianmeeks4430]

Tungsten is indeed quite heavy.

[@stevenr8606]

... or the weight of those HONDA BOYS 'GO FAST' STICKERS.

[@generaldart6567]

Balls of tungsten

[@melody3741]

It’s still mindblowing to me that two gigantic rotating lobes can move air faster than a fan.

[@vumba1331]

Its an issue of pressure, the standard fan loses efficiency very quickly as backpressure increases which can result in the blades stalling and making lots of noise but no volume. Great for high volume, low pressure sprayers as used in horticultural sprayers.

[@hamnchee]

It blows more than minds.

[@hotflashfoto]

It depends on who the fan is. LOL

[@jameshaulenbeek5931]

Fantastic video! An excellent, historical whine tasting event. I also really liked how you interspersed the AEM ads into it - it kept the flow of the video very smooth. Thank you for all of your work, it's greatly appreciated!

[@mrbill2380]

I was an IT guy when I worked for Eaton Corporation at their Proving Ground in Marshall, Michigan for their Supercharger Division. I visited their manufacturing plant in Athens, GA many times, working on the computers on the test stands - they tested 100% of units. I loved my Pontiac Grand Prix with an Eaton Supercharger M90.

[@alancollard8939]

the eaton supercharger was a ineffeicient blower our product the sprintex compressor was far better but we couldnt make them as cheaply as eaton or the numbers that major manufactures wanted so i the financial crash of 89/90 we were forced to close , the sprintex compressor was far supirior to the roots eaton ,fast forward a few years and our place was taken by opcon a far easier to manufacture than the sprintex , but with the same efficiently

[@Rubberfoxy]

I've seen Roots Blowers so big in industry, i did climb inside to take clearances between the two rotos. Real beasts

[@roninkraut6873]

My first intro to superchargers was Mad Max. As I kid I thought it was the greatest thing ever. As an adult, I concur

[@danmartinez9497]

Mad Max fooled many a car nut with his push button supercharger

[@gregoryfuller1136]

The MR2 had a (centrifical, if I remember right) clutched supercharger, so it had kind of the same idea.

[@rosiehawtrey]

@@danmartinez9497 Actually it follows the Mercedes system and its very sensible. Mercedes and Bentley raced, and the Merc had a kickdown switch for the supercharger - get off the corner, dump the throttle and the supercharger kicks in. Bentley 8 litre S - the supercharger was always on. All the Bentley cars ate pistons and all the Mercs finished.

[@Saabspeedmaniac2k6]

Has to be one of my favorite channels. I am a highly certified automotive technician and not only can I verify that this information is correct, I also learn something with every video. Great stuff on this channel 👍

[@atlasintegrations4114]

As always, Another Excellent video that blows my mind, and boosts my understanding of Automotive history and technology. This video is not lagging in information.

[@lenwe4205]

Not bad, lol.

[@claudedottin1312]

Applause 👏🏾

[@Chris-adams-rc-journey]

all I hear is whining. 😉

[@FraLin]

it lacks info about VW G-charger

[@hamnchee]

Alright, that's enough

[@kentuckyblugrass]

I have to take a moment to share my appreciation for this channel. The information delivered is seamless. The only channel where I actually enjoy the ads. The way he incorporates them into the narration w/o stopping the video is FN genius.👊🏻🙏🏻

[@iceman45ification1]

Don't forget that the Detroit Diesel's 2 stroke diesels had roots type superchargers too. They were produced from the late 30's all the way to mid 80's. I love your videos!! Keep 'em coming. 👍

[@AlessandroGenTLe]

He is in EU, here the Detroit Diesel are basically unknown stuff :)

[@iceman45ification1]

@@jzxtrd337 yes sir!! Sure do miss hearing them. 😞

[@Detroit8V92tta]

The Detroit 6-71 was produced from 1938 to 2004. One of the longest production Diesels ever.

[@dukecraig2402]

The old time truck drivers will tell you that the secret to getting one of those 2 stroke Detroit diesels to run good is to slam your hand in the door when you get in the truck.

[@t.s.racing]

On the Detroit Diesel, it's known as a EXHAUST SCAVENGE DEVICE, the unit had nothing to do with a positive pressurizing of the intake charge.

[@owenmeadows5202]

Supercharging my little datsun L16 is starting to sound like a brilliant idea.

[@tigolbitties8352]

Alternative title: An in depth analysis of the Screamy Screw

[@ryandavis7593]

Having lived in Connersville Indiana and making a living working on two stroke locomotive Diesel engines this is a great video. I am currently working on two stroke turbo supercharged locomotives with a couple of Roots blown thrown in. Talking to people about my work, they are often surprised by the fact of blown two stroke diesels. EMD locomotives. Great job.

[@andyharman3022]

EMD's are legend.

[@makaizo]

I love how he describes how bad ass analogue racing cars were. Thanks man, you are a great teacher for good ass like me.

[@bennyz1971]

Very nice video, a good thing that AEM is sponsoring you again. How about a video on head gaskets?

[@beardymcbeardface69]

Proud to know that my Grandfather flew Spitfires during WW2, as an RAAF pilot for the RAF. Served in both Europe and for a short while in the Pacific. Which makes me incredibly lucky to have ever existed, considering that the average lifespan of fighter pilots during WW2, could be measured in weeks.

[@rosiehawtrey]

My grandad ground crew on spits and the five alarm dumpster fire formerly known as the Hawker Typhoon.

[@beardymcbeardface69]

@@rosiehawtrey Much respect to your Grandad!

[@walterbeckertcanto7588]

This series is the best!

[@JohnClutch1]

The steel testicle thing was hilarous!

[@wannabeetiger]

The supercharger: The lag-free alternative to the turbo... Sounds good to me!!!

[@nordic5490]

A lower power alternative to a turbo

[@tracewithaview6731]

Or..the turbocharger, the parasitic-loss-free alternative to the supercharger 😆

[@kenneth9874]

It's actually a turbo supercharger

[@Bambihunter1971]

@@tracewithaview6731 Turbo is lower loss than a supercharger. Nothing in physics is free.

[@rylian21]

The Supercharger has an advantage over turbos in that it provides much better torque in the low end and still works at lower RPMs. The boost is always there because the supercharger is always working. No need to spool it up. This lead to some interesting twin-charger designs which switch between a super and a turbo on the fly.

[@wesleydeer889]

Addictive insanity when you put your foot down. Best line I’ve heard in a long time

[@Unreliable_cars]

just in time. i've been looking for information on superchargers so i can learn more about my supercharged beast vivio rxr.

[@Hopeless_and_Forlorn]

Great history lesson, but you left out the most badass whine maker of all--the multistage axial supercharger. Latham produced a very efficient model that was used in late 1950s and early 1960s drag racing with some success. A Dallas racer had a Nash Metropolitan stuffed with a Chevy V8 and topped by a Latham blower. I still remember the sound it made while racing at Green Valley around 1962, so I guess you could say it was unforgettable.

[@C-M-E]

Well researched, presented, and look at that primo ad placement. =)

[@cuddlepaws4423]

Once again. Fascinating stuff. Really glad we chanced across this channel. These could be shown at schools as they take it from the basics and history, through to current applications. Keep up the great work 👍👍

[@elenidemos]

Met a man that had a twin supercharged, quad turbocharged on a hemi 653, before computer management was a thing. Housed in a Ford 1932 bread truck. It was beautiful & legally driving around the streets with 1500kw.

[@Jim-zy3lf]

I went to School also , Yet Conquering Pike's Peak in 97 was a lesson in Itself 2nd in Exhibition Unlimited SUPER QUAD. There's a History Lesson about Super Charging at the Summit. Now that 156 turns made the Climb well Worth it to Read , Look and Say , DARN a Blower, would have done IT.🇺🇸 Thanks Paul Dallenbach for helping Us! We will Return!🇺🇸🏁 Jimmy

[@vulekv93]

When you put things into perspective and give us context it all makes so much sense and your words gain in meaning and significance. Excellent video!

[@scottfranson4215]

"Here's all the these explained". Excellent work, sir.

[@JesusSaves86AB]

I miss my L67 with the M90. So basic yet so much fun.

[@goodmorning8172]

Agree, only wish they woulda used a more capable supercharger than the M90 though. It was so underpowered and small, it only added around 35hp and 50tq which is abysmal. A decent twin screw or even a proper roots can easily double the engines power but they chose the crappy M90

[@mickvonbornemann3824]

What the go is a turbocharger that’s connected to a engine via a variable ratio drive. So at low revs the turbocharger works as a direct drive supercharger for no turbo lag, while at high revs, not just compresses intake air but also adds power directly to the crankshaft via ‘turbo-compounding’

[@ruanstrydom6471]

Booost schoool heck yeah love this dude

[@joshnabours9102]

15:20 - probably iconel. That way the black oxide layer can keep them intact at the boost pressures their egos demanded to go that fast.

[@Matt-me4zz]

I love these videos. Thank you for taking time making these 😊

[@57dogsbody]

Great vid. I was blown away watching it.

[@marjoh669]

Excellent video and bonus cred for the half-decent pronounciation of Ljungström Ångturbin and Svenska Rotor Maskiner :3 (I’m a swede myself)

[@venkybabu8140]

You can twist wires everywhere to get the engine going as long as the drift is possible. They come under a distributed crankshaft architecture.

[@Orph3us33]

Love this channel, listen while at work.

[@TheRealFobican]

An analog car? That sounds like a dream to come true and drive, now when everything is a tad too much digitalised you want to get some variation to even things out somewhat.

[@jasminegoin5006]

BMW E30 is the point where bmw left the purist driving experience in the dust, and started in a different direction.

[@happylatino]

huh? my car only has headbeams and starter what needs electrons...

[@Tom-Lahaye]

The roots and screw compressors still play a dominant role in industry today. Any sizeable compressed air supply in a factory will be built around single or multi stage screw compressors, and roots blowers are used where large volumes of lower pressure air is needed like air supply to combustion processes or transport of powdered and granulated substances trough pipelines.

[@bryanst.martin7134]

Remember the wolf in 3 little pigs? "I'll Huff and I'll Puff, and I'll blow yer doors off!" So the Wolf enlisted the help of a Tornado, and the 3 little pig's brick house was confetti... ;-)

[@nssherlock4547]

My dad ran a front end dragster in the 60's and 70's with a super charger that was adapted from a airplanes cabin pressure unit.

[@atfarmerbrown]

Learn so much watching these

[@zlatkozivkovic8694]

Red about this Audi electric motor driven supercharger a couple of weeks ago. They say the electric motor is able to go from 0-70 000 RPM in about 1/4 sec. Amazing, right. I can only imagine how much this thing costs. And there are 2 regular turbo's onboard. The electrical one is there to eliminate the turbo lag.

[@koruptiansan]

You're videos are blessing for automotive enthusiasts like me.... Love from India ❤️❤️❤️❤️

[@GaurdianAzzar]

Boost School is my favorite KZbin series

[@orestkendzora8661]

Lol I always facepalm when people mention a pro charger, because they think it’s a type of supercharger, when in reality it’s a brand that makes centrifugal superchargers

[@brucejones7389]

You forgot the Detroit Diesel!!! It was the basis for many blowers 6-71 8-71 14-71 in top fuel!!

[@andyharman3022]

Anything over 8-71 was produced by the performance aftermarket.

[@laurenthelfer9148]

Thats a very calm way of talking! Thank you very for not raping my hears like every other youtubers...

[@RuinedPrelude]

Love the sound of the roots charger in my mercedes

[@putraadriansyah8082]

Now what about the Twincharged engines? putting turbo and blower in the same engine running simultaneously?

[@geraldkoth654]

The exhaust air pump from a slant six Chrysler engine was used as a supercharger on a Canadian Renault Le Car, which could not pass any of the EPA dyno tests. After adding that small pump it passed easily and was a nice peppy little car. One of my projects at the Bendix Research Labs.

[@BigInjun05]

Structural integrity of a coffee pot. I'm going to use that now.

[@rinodak6117]

Thanks for your precious work!!! Always a learning joy to watch your vids

[@alexandermikhailov2481]

What a great channel! Definitely in the top five of all KZbin automotive channels for me. Thank you and keep up the great work!

[@vusindlovu8897]

Superchargers are a real blessing❤️😍

[@topkek7003]

how can anyone dislike this man

[@laurenmartinez55]

I'm amazed you still haven't done a video on the RB26 or the Displacement Wars back in the 60's

[@Valtra103]

would be very cool. I am european and barely know about displacement wars.

[@laurenmartinez55]

@@Valtra103 It was objectively one of the coolest times to be into cars. The fuel was awful so the only way to increase horsepower in cars was sheer engine size. The car I'm building now is a relic from then. A Ford Torino with a 460 cubic inch V8. There's nothing like the sound or feel of an NA 7.5 liter V8. The torque curve is just a flat line

[@huwjones5879]

Your content is excellent. subscribed.

[@afdelta0120]

Every supercharger is just a small industrial compressor built to withstand high RPM and flow rates.

[@kennedysingh3916]

Thank you from Jamaica.

[@JeffinTD]

Excellent video. Surprised no mention of the Detroit 2 stroke diesels that used to roam the earth.

[@rosiehawtrey]

Good ole Driptroit

[@doktorsalami9315]

You really went to town with pronouncing the foreign words and names. Very nice apart from the great video :)

[@yewwtooob]

They are all superchargers. "Tubochargers" were originally and correctly called turbosuperchargers simply because superchargers were designed first. Best part of forced induction is weight savings and 100+% volumetric efficiency which allows high altitude aircraft and the pikes peak run. Good video as always.

[@energymc22]

Great video as always. What I never understood is why we didn't generally see superchargers on European cars till around 92 or 93 with the Aston Martin Vantage, then many started to follow such as Mercedes (firstly on the 1st gen SLK and W202), then Jaguar used one on the XKR and over time they became more popular.

[@fridaycaliforniaa236]

As the song says, the Roots is on fire 🔥

[@NathanAnderberg]

Love your videos. Thanks for doing them.

[@francfurian8215]

Excellent video & very informative as usual. I look forward to the next one. Cheers😊

[@twainjones]

Love the educative level of these videos 👍👍👍 3 thumbs up!

[@LRPMQLRPC]

D4A you are so knowledgeable man!

[@CheezyDee]

No mention of 50's Hot Rodders adapting roots type blowers salvaged from 2 stroke diesels to V8s for drag racing.

[@KannX]

I bought Eaton M24 (from VW 1.4 TSI) recently. Mint condition for just 200PLN (around 50$ lol). Gonna mount it to my Chevy Spark 1.2 (M300). Need to redone some steering pump hoses but that's pretty much of the hard stuff. Interesting video :)

[@numberpirate]

Blast furnaces do not need the extra air to melt the metals, they need it to oxidize the impurities. If you have iron with a bunch of crap in it, including excess carbon, you blast oxygen through it, making carbon dioxide and other oxides, which will either bubble out or pool on the surface as slag. Then you will have pure iron, and you can measure the proper amount of carbon to add to make a specific grade of steel. By collecting the slag and later refining it, they were able to come up with things like pure chromium, vanadium, molybdenum etc which has given us our super alloys that we use for our tools nowadays.

[@upnorthyooper1196]

The Demon was not the only production car to do a wheelie with slicks stock. The 1969 & 70 AMC AMX would do a wheelie with slicks stock. It's wheel base was an 1" shorter then a corvette and the 1970 came with factory traction bars. Mopar had one also in the 60's, I don't remember what one but it had an altered wheel base. The rear axle was moved forward. Just enough were made so they could call it a production car for some drag racing class.

[@MadMaxxMoto]

The Mopars in question were 1965-7 B-body (Plymouth Belvidere/ Satellite, Dodge Coronet) with the rear axle and wheelwells moved as close to the door as possible. It was never done in-house nor as a homologation special, but that handful or so of A-W cars were done by individual racers, and are historically noted as the first Funnycars. This would also mean they weren't 'production' vehicles and not really streetable. Even though the AMX was capable of wheelieing with slicks, the drivetrain ultimately used to do so wasn't a listed 'normal production' option, much like the Yenko Chevys which could also lift the wheels a bit. Under your AMX or altered claim you could also include the 'factory' Hemi Dart & Barracudas which were certainly capable of sky-high wheelies (and blowing out the windshields from twisting the body so hard!), but they were actually reworked specialty-built race/ off-road only cars (homologation specials), not production units. No, the only true 'factory production' car that was actually pictured wheelieing in a magazine pre-Demon that I can remember was the AMC Gremlin-X V8, as tested by Hot-Rod or C&D in the early '70s, and that was done on ('60s-'70s tech!) street tires!

[@dhanarputra555]

Can you give us video about history of fuel system in engine? From ancient carburettor to modern injection. Your explanation is clear as crystal.

[@d4a]

Nice idea! Thanks

[@JazzbLu]

I thoroughly enjoy your videos! The time you spend researching and making these videos for us to enjoy and learn is greatly appreciated! Thank you!

[@hotflashfoto]

Very interesting stuff. Keep up the good work!

[@nickharalampopoulos]

There are two problems inherent to superchargers First the consume engine power to rotate and second the max pressure is dependent on the rpm. While turbos can have max boost from very low rpm.

[@PrototypeSpaceMonkey]

I named my dogs Turbo and Roots... but Roots passed away last year.

[@alancollard8939]

just continuing on the electric super charger theme i can not see how this will work as we used a 50 horse electric motor to test our supercharger at peak flow , the 50 hp motor was huge

[@glenngardin3561]

Well done, D4A! Thank you!

[@jozsefizsak]

That was great. Power adder made me think of puff adder but they're not interchangeable as far as I know.

[@rosiehawtrey]

I caught the European one once. Was swimming in freezing water in Switzerland. Little black snake, curled up round my arm and went to sleep for 3 hours. No hiss, no bite..

[@Tremontvolleyball]

Although this comment may be a year late, I just saw the video and heard him say the car featured was the “first production car capable of doing a ‘wheelie’.” Well, back in the 1980s, I saw a news report of a man in Atlanta, Georgia, USA, try to outrun police in a Lincoln Town Car. The video emphasized that he was going so fast the front wheels of the car were “coming off the road.” I don’t know if this was because of wind or torque. I do know that Lincoln used to have Ford 460 CID / 7.5 liter engines with C6 automatic transmissions and 9 inch differentials.

[@Jan_Seidel]

OK, the ban by FIA to use the supercharger explains, why that actually first emerged again in the late 90 - early 00 in Europe as common feature.

[@bradleypark1936]

Another well composed, educational video. Thank-you.

[@gabem.5242]

15:00 Take this from an engineer to another: if you want to know how wrong playing with superchargers can get, you should ask the British Racing Motors (BRM) about their T15 car. Instead of using a Roots or screw compressor, which were common at the time in F1 because of their rather smooth and excellent pressure curve which raised the torque at lower/mid revs and "flattened" that same curve making the car somewhat reasonable to drive, BRM asked Rolls Royce to make them not one but TWO CENTRIFUGAL ONES. For those who don't know the difference, in simple terms Rolls Royce gave BRM the compression part of a turbo, which was driven directly by the mainshaft of the engine. The problem? Centrifugal compressors have a pressure delivery that resembles a parabula and the faster the compressor goes, even more air goes in. This helps the power delivery in the top RPM range, but made the car completely undriveable, with just short of 600 BHP @ 12000 RPM and 525 BHP @ 11000. It was basically a paperweight if the engine was under 7000 RPM, since it didn't have the torque nor the power to move the car around. It was a mess. The centrifugal supercharger enjoyed a long and victorious life in Indy, since that kind of power delivery is excellent if you don't have to slow the car and shift multiple times...

[@brianmaynard7320]

Great episode sir!!! Learning all about boost!!!

[@mkkls]

I’m always a bit puzzled with this automotive terminology. I was allways taught that ”supercharging” is a general term covering all methods of artficially increasing the intake pressure, - and the equipment itself could be mechanical, exhaust turbine (or electrically) driven. And then you can differentiate accordin to compressor type also to centrifugal, roots, screw etc. So the keyword here should be ”mechanically driven”(?)

[@brianb-p6586]

True - "turbocharger" is just a shorter term which really should be "turbosupercharger"... a turbine-driven supercharger using a centrifugal compressor.

[@creepingjesus5106]

You forgot the Zoller sliding vane type supercharger! An important one from the 30s era.

[@machdaddy6451]

Very educational and entertaining!

[@6rimR3ap3r]

You had me at blast furnace - I'm working at Europe' s two largest blast furnaces :-D

[@TheKtm300rider]

a supercharger is always a blower but a blower is not always a supercharger. 2 stroke engines that require a blower to run are naturally aspirated, not supercharged. Otherwise all 2 stroke engines would have to be considered "supercharged" as they use the bottom of the piston to pump air above the piston, replacing the second cylinder in that first 2 stroke design.

[@gourisha9512]

Nice video. Liked the way it is told as well.

[@ronjon7942]

Took me a bit to digest 2-strokes using the downward motion of the piston to compress the charge. Guess I need to bone up on the 2-cycle.

[@ajaychoudhary9817]

amazing video very good research and presentation