Ceramic Engines?

[@Aspire198]

Hey Matt funny side story on the subject of ceramics and material science. Friend's dad has a Norton commando 750, he had an aftermarket camshaft and lifter kit ( cam in block etc). After about 3000 miles the lifters had eaten the cam shaft. Turns out there had been an issue among people who'd bought the kit where there had been a metallurgy error when it came to the lifters. Result is people's cam lobes were being worn away. What was interesting is most people lost the lobes after about 300 miles or so. Mate's dad had the shaft ceramic coated before being installed.

[@jamesdond1]

The ideal use of ceramics in engines would not be to use their strength but their high insulative qualities and ability to withstand the high temperatures of combustion. Combustion temperatures can reach 2400 C, yet modern engines try to contain this combustion event with materials like aluminum which become malleable at 300 C and melts at just over 600 C. In our research, we are now testing Ceramic lined cylinders and headliners, and carbon pistons. The results, the heat stays in the charge to push the piston rather than sucked off through the 200 C cylinder walls and head... Our test engines are close to 50% efficient..

[@thomaswilson117]

Finally someone knows something about ceramics!

[@himher9073]

Ceramics have been used that way in diesel electric locomotive engines for half a century. For exactly the reasons you suggest. Personally I see ceramics place in engines being in the further development of rotary engines, because it solves the key problems that plague rotaries, and the rotary solves the key problems with ceramics in reciprocating engines. I have thought this since the late 1980s when as a materials tech in a steel making lab I was bare handing ceramic crucibles off a tray straight out of a furnace sitting at 1700°C. Inlet port zone could be maintained cold, outlet port zone extremely hot, and thermal expansion and contraction of the engine reduced to a minimum. Throw in actively cooled skf ceramic crank bearings (similar to those used in the Tesla sport) and chatter might almost be eliminated altogether. Result higher combustion temps due to higher compression and burn, thus near zero polluting emissions. Meanwhile all the benefits of a rotary engine’s low reciprocating mass providing reduced vibration and shock and stress to the ceramic. Whether the engine be entirely ceramic, or just a ceramic core inside of a metal jacket will depend on the state of modern ceramic tech, and production costs. Ceramic coatings I imagine would not quite achieve the desired results, because of durability issues.

[@ianhill20101]

As an elechicken i joined a diy electric car channel my conclusion was to suggest a turbo for the simplest build, that didn't go down too well.

[@buckaroobonsi555]

I have read things from the 1980's where Toyota played around with ceramics and plastics as structural and load bearing parts. Not only was heat an issue but in accidents the engines where breaking and they could never get either under control. I always wondered how they would work in pleasure craft where you have an unlimited supply of cold water. Also how they might work in a stationary power unit situation where again plenty of water and no impact forces to deal with. I wish I could find that material and link to it.

[@mrrmsfucker146]

Would have saved many nations from being invaded and, even destroyed like the clear waters in Brazil.

[@michaeldriver127]

Ceramics sound like they'd play well with Wankel rotary engines!

[@mazman117]

Have you heard of a material called BAM (Aluminium-Magnesium-Boride)? In its highest wear resistant mixture, it is alloyed with TiB2 (Titanium-Diboride) and has a hardness at roughly 45 GPa. Has a coefficient of thermal expansion similar to that of steel. And has a lubricated coefficient of friction lower than Teflon. Do you think this could be used as a coating in engines to decrease the amount of oil needed, increase wear resistance, and lower the friction losses inside an engine?

[@Jmoneysmoothboy]

While talking about hardness, you could see Matt's fondness for C's over B's and A"s

[@grenvillephillips6998]

Footnote: Here's a quick guide to the Mohs scale: en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness

[@igneous061]

kinda enjoying binge watching oldie vid's....soo fcking much stuff to learn/relearn

[@vainparasite]

The water shortage in Lancashire has got that bad that Chorley swimming baths have had to close lanes 7 and 8.

[@tomast9034]

looool:D

[@jesusisalive3227]

I saw something about this in my science book in the late 80's early 90's. They said it was the future because of the wear characteristics and how it would better use the thermal energy from the combustion.

[@trevortrevortsr2]

You know your insight and knowledge far exceeds your vocab : )

[@malcolmyoung7866]

My rod was stretched and then it was bent and now I have to sit down when i have a piss...

[@mauricevandoeselaar]

I used sic tube in a furnace. After heating up the heating element made contact. Oh yes thats conductive. Blew out the fuses several times before we figured out what happened.

[@mikeskidmore6754]

I built a stroker Big Block Chevy Truck Engine 488 Cubic Inches .. I had the Pistons.. Valves and Combustion Changers Heanium coated.. The crap fell off and scratched my cylinder walls so badly that I was burning 7 quarts of oil per day .. The Crap is about like Sand ..

[@driverjamescopeland]

Mike Skidmore - Don't blame the material for poor application. There are ways to properly apply thermal ceramics to those surfaces, but they require preparation... usually a rough sand blasting.

[@g0fvt]

Depending where you insulate the temperature need not go crazy, piston crowns, heads of valves etc seem to often be ceramic coated. In both cases to reduce heat transfer from the combustion to the parts. I believe a critical factor is the heat capacity of the coating too, no good if the surface is glowing as new mixture goes in. I believe ceramics in turbo bearings have caused some catastrophic failures in engines when traces of ceramic have got into the cylinders. I think lathe tools are often made of ceramics now....

[@brentsmith5647]

Brilliant video thank u👁️♥️👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

[@jompazx1272]

your rod bearings will wear quicker with a stiffer conrod because of vibrations being transfered trough it. Therefore high hp engines can use aluminuim rods. the aluminum rod will wear quicker and you will have to change about the same as the pistons but steel rods will last for long time but the bearings needs to be change often af

[@Pgcmoore]

they're just caller insulators, ;-) but there are cool old glass (the very earliest ones for both electric and phone cables) ones around in yard sales occasionally that make great ash trays, and paper weights

[@PyroShim]

I don't even have time to watch all of these videos fully, so how in the hell do you have time to make them? Awesome work!

[@dirtygarageguy]

I have designed and build a time bike - when I ride time reverses LOL

[@jamesluther3473]

Why not just put ceramic chambers in a iron block engine to channel as much heat as possible out the exhaust pipe. Surrounding the firing chamber and it's water jacket with a ceramic filled hollow chamber can reduce the overall operating temperature of the engine. Could this idea work? And would it make any significant difference?

[@dirtygarageguy]

You're looking at this with one property in mind - Heat conductivity. There's more to it than that. Fatigue, errosion, thermal expansion, ablation, stiffness, adhesion, etc etc......

[@MickMcNasty]

During the 1980s, in a development program at Ford Motor Company USA led by Dr Arthur McLean, zirconia-based ceramic components have been successfully tested in reciprocating internal combustion engines. Dr McLean stated that their testing was conducted in a single cylinder, 80 mm bore by 80 mm stroke, high speed direct injection diesel engine at full load conditions over the complete speed range and at speed/load conditions representative of the EPA urban driving cycle. His results showed that the fuel consumption of the uncooled ceramic insert engine was 5% to 9% less than the baseline water-cooled engine generally confirming computer modelling predictions. Dr McLean also reported that after several design/material interations a zirconia ceramic cylinder head plate was successfully tested for 120 hours and a zirconia ceramic short cylinder liner survived over 500 hours.

[@dirtygarageguy]

500 hours and diesel - dude this is a motorcycle channel

[@MickMcNasty]

The Workshop a, there are diesel bikes, b, materials technology is transferable ffs, wise the fuck up

[@MickMcNasty]

Aircraft jet engines currently use a zirconia-based coating to increase their turbine inlet temperatures to improve performance.

[@dirtygarageguy]

Coatings! Not fucking base material.

[@dirtygarageguy]

a - there are a few one offs that are diesel. b - transferable in what respect?

[@SuperTelecom]

That's all well and good Matt, but the real question is: why dont they make engines out of diamonds?

[@danc8278]

I think they're called strain isolators on power lines

[@deepdoubts]

Off Topic … Is there a reason a battery would charge on a charger but not charge on the bike though the voltage goes up on the bike and when revving … Seems only to load to 11 v on charger but starts the bike … Dealer wants to put in new Stator and suggests buying another of his bikes … Just need new battery ??? … Gave stator a peek n still looks good … Ohms in plug …

[@vineymotors6440]

Hang on Matt, because of its lower thermal conductivity wouldn't hold on to heat rather than transfer it to the fresh inlet charge? Especially considering the time that that charge is in the cylinder for? I know that the act of compression is going to induce its own temperature rise and also depends on what kind of temperatures are to be expected. I know from my own studies that the newer GDI engines can have peak temperatures between 1000K and 1500K without any trouble. Anyways Matt still a great video hope to see more on this 👍👍👍

[@dirtygarageguy]

GDI engines don't suffer from pre-ignition by design. Heat is like marbles. It has to go somewhere. Waste heat needs to be removed from the source. If ceramic components don't remove this heat then it stays where it is.

[@pineapple3dprinting349]

This is the only video I can find on this

[@arthurjohnson3438]

FINALLY THANK U

[@rsmit2797]

Knoop Hardness is another one? Was the graph you showed Young`s Modulus? (Stress/Strain?). Have you seen Nitinol, (Nickel Titanium alloy), you can literally tie a knot in it and it springs back perfectly straight? Good vid. X

[@dirtygarageguy]

Nitinol - LOL its what I work with - also known as SMA (shape memory alloy) We use 1mm OD wire to drive linear motors - using resistance to limit find. Its used in stents as well. I have a spring of the stuff - I was gonna show it in a video coming soon. It transitions at about 80degC -

[@rsmit2797]

Excellent! I came across it, (not literally!), as a dental student in the 1980`s, where it was used in orthodontics. Great vids. X

[@lesleykramer7207]

Lol, love all you effing and blinding! Totally relate-able mate! :)

[@BULLDOGHOTSHOT1]

Yeah, ceramic coating the combustion chamber seems to be bullshit... I was always skeptical... Just sounds retartded... "Oh it holds in the heat better..." Then use an iron cylinder head... See how far you get with more pressures

[@Pocahonkers]

Wasn't the golden stuff on the forks titanium nitride? At least that's what I know, could be wrong. Think they use it on the HSS-Drillbits to reduce friction too, that's why some have these bling-bling goldy locks drills.

[@jompazx1272]

they do turbo compressor wheels out of ceramics stock nissan gtr r32 got it. but over 1 bar of boost the break! next model got steel turbine blades!

[@justinwilliams1333]

Hey mat, Nissan actually ran ceramics in there gtr turbo’s in the 80’s and early 90’s. I believe toyota also did with there ct series turbo’s. We’re great until boost pressure started getting high and they Grenaded bits into the intake destroying everything in its path. I’m keen to learn about engine coatings. Thermal, anti friction and oil dispersant.

[@dirtygarageguy]

en.m.wikipedia.org/wiki/Nissan_RB_engine

[@Motoinc]

When does the SPARKPLUG spark? piston on the way up or TDC or on the way down? for 4T engingens Cheers from Sweden

[@dirtygarageguy]

Well be getting into this next week

[@minutemanqvs]

Usually a couple of degrees before TDC. If you do it at TDC it also works but you lose power.

[@assi2assi]

1. what about ceramic coating pistons for 2 strokes? 2. would it have benefits to ceramic coating exhaust on turbo engines so that they can keep the heat better?

[@dirtygarageguy]

1) - I'm about to do that video tomorrow. And to add to this - do you have any links? 2) This isn't about coatings. Obviuosly this wasn't clear when I said con-rods, cranks etc

[@DevinderAthwal306]

I was thinking that very thing this afternoon. I saw this video kzbin.info/www/bejne/bXLGq5uho7V8hs0 3:15 in to the video they talk about the pistons with coatings resisting heat more. It's funny how they hold the blow torch closer to the piston without coating and the others not so much. I take it if the combustion chamber and the piston crown where coated it wouldn't be a good thing on a two stroke as it needs to dissipate that heat out away to stop pre-ignition?

[@DevinderAthwal306]

Marc I was also thinking what if the walls of the exhaust port and the inside of the two stroke expansion chamber where also coated the temp's would be higher would this allow for faster flow though the pipe?

[@DevinderAthwal306]

I was looking at this stuff as it looks pretty easy to apply but it's an American product. www.cerakotehightemp.com/finishes/ They have lots of info on their website to www.cerakotehightemp.com/testing/

[@dirtygarageguy]

Did you send me that video through FB?

[@snafu9463]

I be seen a porcelain engine run oval piston eight valves per cylinder . Made in Japan in 1979 -80 by a university

[@dirtygarageguy]

The engine was from the NR500 and it didn't have a ceramic engine.....

[@peted7295]

I have, not a question but an idea for a topic for discussion. My car has a Renault TCE90 engine, one of the features of this diminutive power plant is that the piston skirts have Graphite inserts. perhaps worth a video.

[@gizmothewytchdoktor1049]

the first person that came to mind on the subject. here's the link: rexresearch.com/yunick/yunick.htm

[@dirtygarageguy]

we'll be getting to this LOL

[@manoo422]

Engineering ceramics are NOT brittle, there is no reason why you cannot make a fully functioning engine purely out of ceramic parts. However due to their high density (high inertia) its not practical to make a high performance engine. Also detonation is not a problem if you inject the fuel into the combustion chamber as modern diesels do.

[@chasingcapsaicin]

They are making turbine blades out of ceramic's now as mind bending as that is. Its quite an achievement

[@17473039]

Chasing Capsaicin The R34 nissan skyline had ceramic turbine blades, thats an old old car now. Not new tech.

[@chasingcapsaicin]

proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2650239 ceramics.org/ceramic-tech-today/ge-aviation-invests-additional-105m-to-manufacture-ceramic-matrix-composites-for-jet-engines

[@17473039]

There is a difference between developing a technology to meet FAA and CAA requirements and the fact that ceramic turbines have been used in turbochargers for ages. Randomly posting some links isn't an argument chap.

[@dirtygarageguy]

They also reported this - The biggest difference between the turbochargers used in the N1 engine, and the standard RB26DETT engine, is that the turbine wheels in the turbocharger are made from steel, rather than the ceramic used for the standard RB26DETT turbochargers. The ceramic turbine wheels are found to be very unreliable when used at high rotational speeds inducing higher centrifugal forces (such as when the turbochargers are used at a higher boost pressure than stock).

[@chasingcapsaicin]

and that's 3 years old, ........... kzbin.info/www/bejne/n6SUc3WfodCsi68

[@chrisdavidson911]

pre-ignition; egt based water injection at the inlet? actually, what're your thoughts on water injection in general?

[@piotrcurious1131]

water is a problem inside engine already. Think of why running cold engine damages oil film. After explosion pressure increases. evaporated water can cool down on cylinder walls, so it does, passing it's latent heat to engine and oil film. Not much of that, but that water mixes with oil, and that is not good thing. Ofc oil has detergents so oil film is rarely broken or water droplets form, detergent allows emulsion to form... but it is just not good for anything and one needs to replace oil... Ceramic engines could break 90C bareer in theory, increasing efficiency - but so nichrome and titanium alloys could. But then another problem comes - oil itself decomposes on too hot cylinder walls. Thankfully there are high temperature oils, but none can reach 600C thresholds ceramics can deliver. Heat transfer is a problem still. Nichrome stainless cylinders increase thermal resistance enough to cause problems already. That is why you can get more power from aluminium blocks even though their overall efficiency is low and they suffer from material fatigue. In theory if one would give up idea of power, one could design highly efficient and fairly weak engine, either nichrome, incolnel or ceramic (or just ceramic coated. with sputtering and vacuum deposition one can get very thick layer). This would be very interesting, especially temperature can be kept under control with computer and array of embedded sensors. With double exhaust valves - each one opening each second cycle, exhaust port water cooling (possible by 3d printing engine block)... efficiency could go up. 3d printing (sintering) has own problems - high pressure casting is just better. By 3d printing complex composite alloys can be achieved though. Personally i would love to see small 4 inline or 10' V (not full V) engines, 1.0L for ultralight cars like audi50. They would not have much power but good fuel economy is enough for me personally, world needs that too. Another interesting idea is double oil system. One oil system for bearings, one for pistons. High quality light oil for bearings, separate fuel pump with electric priming to prevent start/stop wear. low quality "disposable" oil for pistons. With careful design, it will allow shaving bit of consumption, and less oil changes... And last but not least compression stroke is archaic. Why inject water if we can inject air? Eliminating compression stroke improves efficiency because one does not waste energy on raising temperature of gases, wchich then pass temperature to walls because of condensation . Also VVT becomes obsolete - one can precisely inject as much air as needed. Lower temperature before ignition lowers chances of pre-ignition - afterall one does not inject air too much before TDC... Will it all make _reliable_ engines though? It all increases complexity.

[@chrisdavidson911]

​@@piotrcurious1131 egt - exhaust gas temperature - using water injection on the inlet to cool the air change, based on how hot the exhaust is, essentially to reduce pre-ignition. As an operating system, this would deactivate given a temperature that was within acceptable parameters, not something which would run all the time. That comment is over a year old now, I'm fairly convinced that's what i was thinking of. Condensation from the crankcase breather would be a problem based on what you're saying, and it isn't. I'm not even sure if you're being serious about the other stuff

[@piotrcurious1131]

@@chrisdavidson911 i think most serious would be experimenting with air injection to remove intake and exhaust strokes. There are engines using this method - two stroke engines, and even commercial ones, so this is not so much of a sci-fi. Rest of the stuff - who knows. It would require testing if it's worth commercially.

[@Punkalflufen]

Outtro/outro/extro had top energy today...

[@WJRobbins125]

"I have a toxic material here..." but because I'm a man's man I'll handle it bare fisted. 😀

[@shaun5427]

stay tunend for more

[@helpabrothawithasubisaiah5316]

I was thinking about a plasma engine.. and plasma is freaking hot, metal engine wouldn't hold up to it I don't think.. so thats why I looked up ceramic engines lol

[@craigslitzer4857]

Someone actually thought to make the connecting rods out of ceramics? The only ceramic use I ever heard of was research on a ceramic cylinder coating to mitigate embrittlement in a hydrogen fueled engine. It's been ages since I read about that tho. No idea if it ever reached production.

[@rainbow64446]

Hi Matt. I personally think nicosil barrels are crap. cant rebore/sleeve. XT660 . had to buy new barrel. Yam yz250f same story. WTF.? thanks for the info on your site.

[@dirtygarageguy]

You can rebore and then recoat.

[@rainbow64446]

two bike shops in SA told me otherwise. but i'd rather believe you. thanks.

[@antonindelsol6563]

Is that normal with load/flex when u draw ceramic u made his load go higher than steel (at least b4 it permanently bend). But if it was the case, why would we care that it doesnt flex if it take more load anyway. So I suppose I didnt, and it was just a quick draw !?

[@dirtygarageguy]

just a quick draw

[@wg9601]

Don't NASA use ceramic bearings on stuff like Mars rover? They would need to be tough to go through that baron and rough planetscape.

[@madjimms]

Why not just a ceramic cylinder liners?

[@dirtygarageguy]

Heat transfer, that's why

[@maddiekits]

There are some limited application cylinder liners now but due to limitations would only make sense in the highest performance application.

[@funcounting]

Is there a way to make detonation irrelevant? Like with some alternative crankshaft and conrod design?

[@dirtygarageguy]

LOL no. I think. Direct injection like a deisel is a great way.

[@funcounting]

But what if you could have a straight shaft with a gear mechanism on it that rotates the shaft one way regardless of which way you move the input gear? You could have a straight rod with teeth on it and pistons on both sides sit on that input gear transmitting power to the shaft whenever combustion occurs. Or is something like this just impossible?

[@dirtygarageguy]

But you're still doing compression right?

[@funcounting]

Yeah but if there's pre-ignition during compression it wouldn't smack back into the conrod riding the crankshaft's journal, it would just bounce back the other way still producing useful work. Or at least it looks so in my head.

[@dirtygarageguy]

Can you send me a sketch - even a very simple one through FB or email - this is interesting

[@annoyedchihuahua4011]

Any kind of physical or thermal shock would make a ceramic engine a giant shrapnel bomb I guess. No?

[@crackedemerald4930]

So you beat your rod enough that you can't bend with yer hand anymore and need a tool?

[@Dr_Xyzt]

I've never quite been able to accept the idea of ceramic reciprocating engines. It'll run hot and cause knock like a motherfucker once they get up to temp. For stationary gas turbines where the inlet is metal and the combustion section has ceramic structural parts, I can threaten to accept it.

[@malcolmyoung7866]

'Yield'...... 1. produce or provide (a natural, agricultural, or industrial product). "the land yields grapes and tobacco" 2. give way to arguments, demands, or pressure. "the Western powers now yielded when they should have resisted" synonyms: surrender, capitulate, submit, relent, admit defeat, accept defeat, concede defeat, back down, climb down, quit, give in, give up the struggle, lay down one's arms, raise/show the white flag, knuckle under.. There are some 'Tubers' who comment on here should 'yield' to the power of 'Arseholeness' and 'Engineering Science'....

[@driverjamescopeland]

"Plastic deformation" I'm unfamiliar with. I thought the term was "memory"?

[@csotanyjoe]

First Like from me. 👍🏻

[@beachmezz]

See General electric jet engine video

[@EDDIEcodename47]

until you hit bump in the road ...

[@AuMechanic]

"The future of engines is ceramics in engines" was the catch cry in the 1980's, but it was just another pie in sky idea that lacked any consideration for economies of scale and the fact punters want cheap vehicles and that is why engines are made mostly from the same stuff they were made from 40 years ago, the only thing that really improved to any degree worth noting was the improved precision of machining and more durable plastics.

[@driverjamescopeland]

While most of this remains true for piston engines, some rotary designs could benefit greatly from ceramics... some even require them.

[@michaeldriver127]

This is why I'm here! Would seem that almost every part in an RE could be made with ceramic and solve issues with thermal efficiency.

[@driverjamescopeland]

@@michaeldriver127 - yes, and no. The problem with ceramics, is while they have great conductive resistance, this also means they have horrible passivity. You can build a rotary with ceramic combustion surfaces... but under high duty cycles, you're left with very hot surfaces that aren't cooling down any time soon. This greatly effects several parameters, but most importantly is detonation. Ceramics are also subject to thermal shock damage... so when you take hot parts and subject them to, for instance, freezing temperature induction air... you end up with the material erosion OR catastrophic failure (breakage for whole ceramic parts, or delamination for ceramic coated parts). In my experience, the best application for ceramics that I've found, are ceramic apex seals for Wankel/Mazda style rotary engines. For racing applications, ceramic coated combustion surfaces on the rotors and combustion chambers seem to work well... but only for drag racing. Anything under load for long runs (marine, aero, road racing, etc.) runs into issues with heat soak.

[@michaeldriver127]

@@driverjamescopeland thanks for the informed reply! I've only recently thought about the subject of a ceramic engine. It does seem that there's many approaches to ceramic manufacturing, such as the mixing of other materials to negate unwanted affects. It's an interesting subject. Where is the problem of thermal efficiency occurring at in the rotary? It seems that the intake has no issues with allowing cold air in, so it must be an issue with getting hot exhaust out fast enough, yeah? I'm imagining the insulating effects of ceramic housings to allow the engine block to keep less heat and contribute to hotter exhaust. I can't get it out of my head that ceramics could be used more in the build, but what you say seems valid enough. I love the rotary for it's problems sometimes, as it feels like there's room to improve overall design, but it's just a matter of application and practicality. Anyways, thanks for the reply.

[@driverjamescopeland]

@@michaeldriver127 - the poor efficiency of all rotaries is due to their low volume:surface area ratio. The higher surface area not only lends to heat loss, but also holds a significant boundary layer of air and fuel that can't combust. Beyond this, the compression ratio of a Wankel/Mazda type rotary, is geometrically limited to less than 10:1. If those two aren't enough, the changing shape of the combustion volume from point of ignition doesn't allow for any sort of proper flame front propagation. Ceramic coatings have been used to treat the faces of the rotors, and do help.

[@deepdoubts]

Also off Topic …. Mechanic screwed in a Relay for 80 Euros .I see it costs 23 Euros on Ebay … Is it normal to swop a relay for 57 Euros labour ? Am I missing something or did he seriously fuck me over ?

[@defaultdriftco00]

The r32-33 skyline rb26dett had ceramic turbine turbos en.m.wikipedia.org/wiki/Nissan_RB_engine

[@defaultdriftco00]

I used one on an sr20 at one point, so scared of overspooling it and it hand grenade on me

[@dirtygarageguy]

"had a ceramic compressor wheel rather than aluminium."

[@defaultdriftco00]

The Workshop Besides minor cosmetic updates and ECU fine tunings, changes were made in the R34 generation to ball bearing T28 turbochargers as opposed to journal bearing turbos. The R34 GT-R turbos retained the ceramic exhaust turbine wheel. Models that had steel exhaust turbine wheels included the R32 nismo, R32-R33-R34 N1 models and R34 Nür spec skyline GT-R's. (Cut and pasted)I stand corrected, r32-34 had exhuast turbines made of ceramic

[@dirtygarageguy]

It goes onto say - "The ceramic turbine wheels are found to be very unreliable when used at high rotational speeds inducing higher centrifugal forces"

[@defaultdriftco00]

The Workshop wasn’t trying to take the piss out of ya, just a bit of info on the attempt at the ceramic turbine. I never ran into any problems, all the way to 15psi at most times (nasty rev limiter banging drifts) never popped

[@miguelsilva1165]

"They don't make turbine blades out of ceramics" - What???? Ho you have your balls in the vice now, and I'm turning the knob, hehehehe. patents.google.com/patent/US4408959 - I know a patent isn't proof of existence. www.sae.org/publications/technical-papers/content/890426 - I didn't read this article. My MAZDA RX7 has ceramic turbine wheels and the exhaust temperatures are crazy I've logged it post-turbo at 1240ºC, I wold imagine pre-turbo being higher (no logs) and it survived the temperature and the 170 000 RPM stresses. And I think TOYOTA SUPRA also uses ceramic turbines and probably others did too, as they outsource this parts probably to IHI or MHI. I've read some comments below on the turbos, but they all refer to the compressor side, they have it the wrong way around. From my experience and boosting the stock MAZDA Twin turbos up to 1.4 bar/20psi no they don't granade.

[@dirtygarageguy]

If you read your link - "Methods of attaching ceramic wheels to metal components are reviewed, and the statistical treatment of probability of fracture is outlined."

[@miguelsilva1165]

I'm turning the knob even more. And by now your voice must be at an higher pitch and feeling the compression on your balls. :-b You could have written (they make turbos out of ceramics but they are shit) and that I wold accept that, but no you chose to nick and pick and not reply (they do or they don't make ceramic turbos).

[@beachboardfan9544]

Are you forgetting about GE's CMC turbine blades?

[@dirtygarageguy]

No. Are you stupid? Yes. Since when is a turbine blade a con-rod or crankshaft? Are Turbines under compressive and tensile stress? Is a turbine part of an engines internal system or an add on?

[@motominx7507]

The Workshop ,, hahaha Not sure if he’s stupid ,, but I think he likes to bait an argument out of anyone who’ll reply, lol

[@beachboardfan9544]

🎣 He's both english and an engineer, so I know he likes to argue Plus! What I lack in intelligence I make up for with penis size 😉

[@motominx7507]

Beach&BoardFan ,, oh please ,, spare me . Just like the wheel size ..... bigger is not always better

[@beachboardfan9544]

It also suffers from high gyroscopic force! 😆

[@empanada401]

second

[@DragonForce.]

Suck off the extra heat and turn a turbine produce electricity heat problem solved and as a bonus your producing power hybrid for free use hho for the gas change the timeing to ignite faster because gas ignites faster the liquid so in summation a water powered hybrid electric cumbuston engine add tungsten were needed to fix the britall Ness or some other metal that has high heat application

[@Chrmngblly]

Wow. What a dope. They make jet engines out of this stuff. Why are you even doing this video?

[@keithwatkins3216]

??????????????

[@digi1234]

take the ceramic part of an old spark plug and throw it against a window

[@beachmezz]

You should take speech lessons, I can hardly understand you.

[@dirtygarageguy]

Not my fault you're not english