Duramax, Cummins and Power stroke Diesel Engine piston design

[@axelruntschke]

I've never owned a Diesel Engine. I have no intention of ever owning one since I simply don't have a need. I'm also not a Mechanical Engineer, Mechanic, nor do I have a Degree in Fluid Dynamics. But I sat here, watching this video ABSOLUTELY FASCINATED by the information and how it's presented! GREAT VIDEO!!!

[@justmemyselfandi5532]

that is because you love marketing :)

[@JackLandon-zi4io]

Finally, someone with some engineering experience and enough foresight to apply it in a manner that will actually make a difference. Smart guy. I hope they sell a million of these things.

[@chefdan87]

At 4,000 dollars for a set of pistons in a typical Ford/Dodge/Chevy its going to be out the budget for the average Joe.

[@lando7129]

It was 8 grand to replace my dpf filter and scr unit so yeah I would have gladly paid for the piston s instead of that restriction BS . Lower egts would reduce wear and tear and extend life too and the engine would run cooler and cleaner sounds like a win all the way around

[@letsputunuthasrimpon]

He doesnt have engineering experience. hes a pilot. Dimpled pistons have been tried and abandoned in the past the same as dimpling any intake components as the improvements are very limited and pointless. They also required far heavier use of dimples than seen here. Likely snake oil tbh.

[@alexlindekugel8727]

@@letsputunuthasrimpon as much as i would like to agree. the tests that are comen out now say else wise. least on pistons.

[@letsputunuthasrimpon]

@@alexlindekugel8727 ive seen claims but no acrualy test data or proper study as of yet. Just claimed results 🤷

[@thomaslee4725]

If I was a millionaire which I'm not but even if I had the money I would take my car out there and have it overhauled from Dave shop 3 years 100,000 mi you got to be kidding me. Nobody on this planet offers that anymore. Nobody Dave Man. You are the man. God bless you and your family. We need more like you. You are a true patriot my friend

[@RealityAndlife-sb8uc]

Buy the correct vehicle first and do the correct maintenance. Then you won’t need to go see Dave . Example being go buy a Toyota

[@midwestrustwarrior]

A warranty means nothing if you don't follow the fine print. Even then the person offering the warranty discloses if they find any reason of a failure that isn't their fault then it's void. If you were a millionaire what would you care about a warranty anyway?

[@johnnywalker5635]

Yes. But I'm sure he's very expensive

[@beardedswordsman2901]

Cummins was the last diesel to beat the EPAs specs before they made them run the def, and the EPA kept moving the goalposts. So even if you beat whats required, the EPA will move the goalposts again.

[@pingpong9656]

EPA is a bunch of woke morons at this point - they have no engineering or business knowledge...

[@georgepierce9253]

With the Supreme Court ruling on chevron defrense.. epaulets is a private corporation not a government agency. They didn't have the power to make laws.

[@hondaxl250k0]

@@georgepierce9253yes. The death of Chevron was a huge win!!! We may actually get small trucks back. It neutered the epa atf fbi dea and all alphabet agencies. Although I drive a 97 f250 hd with the 7.3 powerstroke. I’ll die before it will . So won’t effect me much. No def. Not even catalytic converters.. best truck ever

[@paulg444]

Ill gladly live with the DEF.. It is the DPF and the EGR that is killing us.

[@tristanmerrill7563]

Awesome video good to here some people who actually know what theyre talking about

[@brian2359]

Chris just made my brain hurt! Crazy knowledge!!! I’d love to see Dave, Chris, and Gale in the same room!

[@DavesAutoCenterCenterville]

You and me both!

[@markwilson9760]

Build a motor and test. Send to banks if you have to

[@Keo]

Agree

[@abegiesbrecht1148]

💯%

[@HayCO33]

Yeah Gale will give us all the “ Low down dirty shame “ for sure

[@benjurqunov]

Why should Banks gain homosexual special rights from this ?

[@WingspeedGarage]

@@benjurqunovThe godfather of forced induction

[@LoydChampion]

I have to laugh a little at this. I put dimples in the tops of pistons since 1973. The first time I saw it done was when I helped a guy rebuild a Cummins in a boat before it went to Hawaii. It did add power, but also reduced fuel consumption as well. Since then I've done it on everything diesel I've done, including an EMD as well as a CAT D399 and D398. When I got into the racing engine world, I did this on many of these engines as well, and one actually won the Daytona 500. I did some work at UCLA Engineering to figure out the reasons it worked back in the day as well. Interesting dynamics at work here. Nice video

[@Romoto131]

Bullshit

[@fireflyraven2760]

All i have to say is if it works it works only time will tell us if it is true the more time for into be proven

[@Romoto131]

@@fireflyraven2760 things like this can be proven out IMMEDIATELY, if they wanted to.

[@fireflyraven2760]

@@Romoto131 but it will time to be proven

[@NaiveRancher]

What I love about this video is that the CEO is so knowledgeable about what his team is designing and selling. He knows exactly what he’s referencing and he’s not BSing anyone about it. He admits it’s not for everyone, he’s not a government chronie trying to upsell everyone and instead trying to help reverse bad decision making and progressing car and diesel culture forward! When I can fathomably afford these, they’re going in my 7.3PSD.

[@Mike-m7f8s]

I don’t have a diesel but I find the show interesting I can’t stop watching

[@chrisforgan731]

works on petrol engines too

[@betterwithrum]

You’d love a diesel, so much torque

[@archiemehana5889]

I love my diesel’s I currently own one & 90% of my vehicles were diesel we also currently own a gas “hatch back” my speedy toy 2015 Mercedes A250 lol I’m also a truckie 55yrs this October my Dad put me in his truck to drive on my 13th Birthday (DOB 15-10-56) still at College still driving to this day R.I.P. Dad🙏🏼💕

[@kevenhiemie]

Maintenance prevents wear, the reduced need of maintenance reduces the potential of error. Wow that is a totally new way of thinking about things.

[@quentagonthornton49]

Not really, its been common practice in commercial and military aviation as well as various other industries for decades at this point.

[@terratrodder]

The interviews lately have been gold, and this one is top of the list. Amazing stuff indeed.

[@richieburrows7928]

I have a 2007.5 Dodge 3500 with the 6.7 Cummins. In May 2022 I put these pistons in and I now have 58,000 miles. I have decreased EGT’s lots more torque and horsepower and way better fuel mileage. Well, worth the money spent.

[@JackLandon-zi4io]

That's awesome. Who built your engine? @DavesAutoCenterCenterville ? What fuel mileage increase are you getting?

[@Steve-sf9xv]

Is this a work truck? That's a lot of miles

[@richieburrows7928]

@@Steve-sf9xv I’m a traveling crane operator and I pull a 42 foot Cyclone toy hauler. And yes, it’s not a poke around town truck.

[@richieburrows7928]

@@JackLandon-zi4io South Houston Machine. Depending on what time of year and what altitude I’m at, I can get anywhere from 18 to 22 miles to the gallon unloaded. I did not set it up for economy. So considering the fuel mileage is not doing too bad.

[@Sparky21999]

@@richieburrows7928 What kind of mileage did you get before the upgrade? Do you know if there has been a change in your regen frequency? Do you have an idea how much your EGTs have decreased? Any other changes to your engine? Thanks for sharing your experience!

[@asadkhan-qm1my]

Hallelujah, ray liotta is still alive

[@LuisG0130]

That was my first thought 🤣🤣🤣🤣

[@samsaunders5097]

I thought he looked familiar 😂

[@jesse7852]

Nailed it!

[@mattclarkson8533]

Ray meets Kurt Russell

[@123donmaster]

Haha I was thinking the same thing!!!!!!

[@bobbyjoethe1manshow]

So stoked to hear they are making them for the tdis, will be using these in my engine build

[@steffytheking]

Got all giddy like a school girl when he said tdi.

[@katdaddiojoe]

This Kat is the real deal! Love his explanations and his way of letting you understand in layman’s terms! Not cocky, not full of himself,..laidback and charming with his delivery! I love it! Marine, pilot & a stand up good guy with an abundance of knowledge in that pretty head of his! Yup,…he’s a stud and well deserved for sure! Thx Dave and gang! He needs to comeback for “Part 2”.

[@gb4408]

A great Australian engineer called Phil Irving coined "the principles of engineering never change, merely the way they are applied!"

[@MrPnew1]

Phil Irving was one smart engineer. I still have his book Tuning for Speed

[@gb4408]

​@@MrPnew1so do I

[@rumplestilskin4376]

@@MrPnew1 me 2

[@chrisforgan731]

a family freind was tuaght by phil when he was a tafe instructor

[@HoNcHo2332]

I can confidently say this piston design is going to change the game. Wow. Very impressive.

[@Sparky21999]

Do you mean because you know the design works as advertised? Those are some extraordinary claims this guy is making and he bungled a few of the explanations in this interview. Agree if these pistons really do what he is saying they will it be a game changer. I am highly skeptical however.

[@DavesAutoCenterCenterville]

Here are some of their independent test results you might be interested in. You can judge for yourselves.👍 www.speedofair.com/r-d

[@HoNcHo2332]

@@DavesAutoCenterCenterville very interested. I'll check it out right away!

[@Romoto131]

@@nephron9924seems pretty clear that Dave has vested interests here, and it very well should be held against him when this scam is exposed for what it is.

[@robertschwarz1568]

You need to install the new pistons in one of your trucks and run your own test. I am sure your boys would volunteer one of their trucks for testing. You can even do a video on the build!

[@LouGrieco]

What an awesome video. I wish I had 25 percent of this gentlemen's knowledge. The EPA should listen to him.

[@hondaxl250k0]

With chevron being shot down by the Supreme Court. The epa no longer has power to say anything with out a vote from congress .. the alphabet agencies are tyrants and got what they had coming… neutered..

[@jorgegonzales4153]

No more chevron deference! EPA will now be controlled by we the people via our elected…..

[@earlmccoubrey7580]

Blimey! He said they are coming out with pistons for Mercedes OM-606. That’s my motor! I’m floored that there are still enough of these in the wild to make it worth while to design a market pistons for it. My engine is doing really well, getting 25-32 mpg…should I have it rebuilt? More power would be terrific.

[@bobbywalter5320]

More power....cleaner ...better economy . Yup. Like it

[@Eman-ku6vq]

It’s shameful that this video doesn’t have an insanely higher viewer count. This is potentially a revolutionary move forward for internal combustion engines and something that will save diesel engines from this point going forward. I will share to everyone I know amazing work.

[@ryonadcock]

Love these pistons. Finally, something to combat EPA standards and emissions. The emissions standards are absolutely killing motors and these pistons are great step in the right direction.

[@oceanmariner]

Absolutely great video with tons of information. So good, so much information, I watched it twice. I'll probably watch it again. I own a bunch of marine diesels with a couple coming up on overhaul. Hopefully Speed of Air makes custom pistons for models not on their list. I don't want to replace them with new engines because the new ones don't seem to be as reliable. The mileage boost is even more important in marine applications. My engines can run 24 hours for days or weeks without stops. Before I bought centrifuges I changed oil hot, engine running. Adding new oil and pumping old oil until it ran clear. Filters in a manifold for switching out hot. You have the best automotive repair business I've ever seen. Everything top notch. High quality work. No shortcuts. Repairs as perfect as possible. I know it was a lot of work getting there. The boss has a natural ability for teaching, too.

[@CrimsonYetiCartoons]

You need two things to empirically assert that these are viable and efficacious for the public: 1. Long-term proof, ideally 500+ hours on a couple of engines 2. Dyno tests, emissions tests, MPG tests, sound tests, etc. Go to Banks and do a collab. Edit: Tests FROM the manufacturer of these pistons mean nothing. You need several third-party, non-interested parties to test them. Banks is a reputable start with good publicity. If these guys really believe in their product (and are honest), they would be running to Banks for a collab.

[@DavesAutoCenterCenterville]

Yes, test results are very important. Here is a link of some of the independent testing results from their website. www.speedofair.com/r-d

[@Chainsaw-ASMR]

@@DavesAutoCenterCenterville You can't trust "independent testing results" if they are provided by the manufacturer. They have no incentive to report a failed test. Please do your own tests and report the results.

[@Steve-sf9xv]

Didn't the guy say that SEMA certified them? Isn't that independent?

[@Chainsaw-ASMR]

@@Steve-sf9xv maybe I explained my objection poorly. The salesman can be 100% truthful in reporting positive test results and still be hiding negative ones. Look, maybe I’m wrong, I’m willing to admit that, but this guys shtick sets off my BS alarm. Extraordinary claims require extraordinary proof and there’s just not enough independent reporting yet…

[@N-M424]

@@DavesAutoCenterCenterville The CAT 3516 test report doesn't indicate much at all. In fact, the fuel savings was deemed "inconclusive".

[@rubenleal4821]

I recall learning about this theory back in the 90's in a science magazine. The study talked about how sharks swim smoothly through the water, and that the skin of the shark was rough. Basically, the rough skin creates eddy currents that act as bearings, making it flow smoothly through the water.

[@duane9707]

Same theory when porting heads...you don't want the intake surface smooth.

[@MrGGPRI]

That is why vinyl tops on cars increase gas mileage...

[@adamtheuerkauf841]

Yeah mythbusters done a dimpled car to see if fuel will decrease. They added about 200 extrapounds of weight to this thing cause they covered the car in clay and molded dimples in it.. turns out it got better fuel economy even tho it was heavier ​@MrGGPRI

[@fireflyraven2760]

​@@adamtheuerkauf841 God damn

[@cyruswoolard3737]

Im working on the Mercedes diesels! Super stoked to see how they turn out

[@blaketison1802]

After watching this, I'm with Dave. There's hope. It all comes down to the industry not shutting them out because it makes other stuff in the emissions system unnecessary. That is a multi-billion dollar industry. Those guys aren't going to be happy

[@CraftySasquatch]

I don't know of a manufacture anywhere that is designing things to last. Designed obsolescence is their goal always. How many 2024 vehicle will still be running and road worthy like the 60's-90's vehicles that were made to last with real American steel?

[@D2O2]

Having spent several decades working for one of the largest diesel engine OEMs, I can say that if this worked they would have gladly used it versus all the time and money spent developing the strategies they went to production with. This would have been a major advantage over competition and the design would have been bought.

[@CraftySasquatch]

@@D2O2 Nope. Designed obsolescence is designed into everything manufactured. If they made stuff to last longer it would run them out of business mentality. This tech will not end up in vehicles in mass for this very reason. Sure it will be available to the masses but at a much higher cost to the end user than say if it came in your vehicle.

[@andymike6575]

Amen. I’m convinced the e p a has a vendetta against diesels and wants to make owning them as nightmarish as possible. Trucks would be $20,000 cheaper and would last a lot longer if it weren’t for all that faulty emissions equipment

[@blaketison1802]

@@andymike6575 the pistons are $4k

[@TreatsOnTheStreets]

I'm stoked he mentioned the m57. Would love to see these pistons in my m57 as a long term ownership vehicle

[@tdotw77]

Been following @SOA for awhile now & I can't wait to see where this is going! As a diesel enthusiasts I hate the restrictions being placed on our platforms and all the problems that come along with them! Ill be following along with you to see the progress! Hopefully i can afford a set of your pistons to someday throw into my 7.3, but I'm sure it won't die anytime soon to need a rebuild anyways. Love this stuff guys. Also love to see you 'dealing' with CARB & Comifornia along the way too, they really need 'help' down there!👍🏻👌🏻🛠️🔧📏

[@mib7483]

I really liked this video. I worked at a Chevy dealer in the late 80’s. What a nightmare of vacuum hoses and wires.

[@jimkillen1065]

Yea one of the reasons i left that a line mechanic for gm and never went back . A good choice for me . Warranty work being the next reason..i dont regret the move one bit

[@fteoOpty64]

Wow, harrier jump jet pilot!. RESPECT.

[@ericharrell964]

This is literally changing the game for diesel engines. This is absolutely amazing

[@fireflyraven2760]

If it works i have seen the test and it still feel to good to be true maybe in the future for me I'll finally get ahold of an l5p duramax and I'll pay to get it tested with emissions without emissions and with these pistons

[@trevorwhalley7466]

A very interesting video, seen before on UK company using them,results are very encouraging and its reassuring to understand the technology behind this. It does appear that the use of these pistons/ring sets are a great step forward, would i try them, yes i would, even for the hell of it. Keep us informed Dave

[@stevenoe6395]

I would love to hear the difference in sound on the 7 3idi and power stroke. Great video thank tou very much I'm real interested in those pistons!!!!!!!!!

[@OneGold_777]

Dave, mic up the other guys, they have good questions we need to hear as well!

[@DavesAutoCenterCenterville]

Thanks for the feedback!

[@devmeistersuperprecision4155]

I love this video!!!! Back in my college days, we met Smokey Yunick. We did empirical work in our two story wind tunnel. We did golf balls and golf clubs. Great experience and our school made a few extra bucks. I have worked on Stanley steam cars to modern vehicles. One of my first bosses in engineering taught us to hack ECM code in fuegos. Listening to these guys is so mentally entertaining. And listening to the boundary layer so confirms the air curtain injection theory. This CEO soooo knows his stuff!!!!!! Lower EGTs mean Lower NOX without EGR and DEF! NICE! Love it!’nn

[@milesj6064]

This is awesome, I have been following Speed of Air for a couple years when I accidentally came across their website, and I wasn't sure if it was a scam or a fly by night outfit. But now that people like yourself are interested, I can't wait until they get the certification and start putting these engines into service and not only will it improve the emissions as he said, but if you do oil analysis you can extend oil changes and put less waste oil out there, and the engines will last longer. I can see the OEM's not liking things lasting longer. I have a 2018 F150 diesel, not very popular, but I love it and would love to see what this would do to my little engine.

[@nevillegoddard4966]

I wish SOA every success! Fascinating video Dave!

[@Bedlam_6]

I want to see the results, and process of them doing the 7.3, I really want to do this to mine.

[@richieburrows7928]

Check their website they’ve already put them in a 7.3 with emissions got 500+ horses

[@kirkpalmer1709]

Which 7.3? Gas or diesel?

[@Bedlam_6]

@@kirkpalmer1709 diesel

[@quentagonthornton49]

@@kirkpalmer1709 The one that was the most advanced medium duty engine for its time made by Navistar International, not the piece of junk that was already antiquated the moment Ford started designing it.

[@brucemadden1626]

Excellent information; hope the trucking industry will get on this.

[@paulsalvestrin7253]

A very interesting concept. Most of my career was spent in engine building/machinist with the later year's spent in development, and over that time i have seen many piston development idea's from many manufacturers. I think the key to this is the computer modeling that is now available today and also CNC capability of accurate placement. Torque percentage increase is also a function of increasing the piston crown area in combination with better controlled fuel burn. All R&D is the key to the future.

[@keithroverud2252]

I wanna set of those pistons in my little 3.0 eco diesel just because I want it to last/live as long as diesels are supposed to last. very encouraging developments coming down the pipe

[@timothyivatts]

Really interesting interview. Good to see there are companies out there designing parts that can make a difference to every part of an engine.

[@isaaclandau5751]

16:54 Love you bringing Gale Banks into this. Would love to see you do something with the folks over there!!!

[@PatrickJMele]

My Head Hurts! Wow so much information all positive, I worked fo Kenametal Tooling inserts in Fairlawn N.J. and everything there was coating Engineering of all inserts and I can tell this man knows his stuff. Thanks Dave for this informative video and can't wait to share it with others in the field

[@archiemehana5889]

Haa Hahaa my brain is hungry for MORE Haa Hahaa & I flunked out of College lol my wife/family/friends etc believe I should be a Doctor/Engineer/Scientist etc etc Haa Hahaa big JOKE far as I’m concerned lol

[@joshuamckinley8707]

I've never been too interested in diesels but since discovering this channel, my interest is definitely piqued. And the info in this video might be the most interesting and exciting I've heard about engine tech in a long time. Seems like this technology could totally change the face of engine design across the board.

[@jeffley2523]

Thank you for this, extremely educational. provides me hope here in California!

[@LuisRodriguez-qg8ci]

Totally awesome interview and knowledge!!

[@stevesanderson7615]

love the tech and conversation, Dave and sons cutting edge , great spot at Formula 1 race . cheers

[@brucepaxton2471]

It was great to hear Chris P's back story about his previous career as a Marine Corps Top Gun instructor. He probably flew against some jets that I worked on for Macdonnell Douglas back in the mid 70's. "MacDac" was still building A-4M jets for the Navy and Marine Corps at that time. I am pretty sure that those jets were used as "bogeys" during the Top Gun training programs because of their extreme maneuverability against the F-14's and the F-18's. The Blue Angels were flying A-4's back then.

[@Jon651]

I've been a diesel owner for my personal trucks since 1995. I want those pistons for my current 2024 Silverado 2500HD with the Gen 2 L5P but can't really justify the cost now that I'm retired from fire/rescue, but I feel that these will become industry standard from the factory just as soon as they get all the hours of certification done and can build them en masse. At that moment these guys will not only be famous, they will be rich. The very moment Speed of Air goes public and sells stock, I'm buying!

[@fireflyraven2760]

As long as they work the way he is describing them though it might not become a standard because the automakers will have to invest in this and that alone will cause price hikes and the next question is will people be willing to pay

[@edmondbarrettejr.6888]

it will add to the cost of the engine build but save a on the deleted emissions if true.

[@IcemanJD08]

Dave I appreciate you guys for putting out videos like this that are packed full of information. I always learn something from your videos and I am always trying to grow my knowledge. Thank you so much. I wish I lived closer to your shop because I would most definitely apply for a mechanic position so I could gain more knowledge from you.

[@riverdog8796]

This man has the best excuse in the world for having a large head..... It is absolutely FULL of freaking brains!!!! Amazing guy! Dave is smart as they come when talking engines, but even he was in awe of this dude.

[@andymike6575]

Marines are often called “crayon eaters” and “jarheads” by the other branches. That stereotype could not be further from the truth. As a former usmc aviator and a double major in engineering I can assure you that the most intelligent people I’ve had the honor to work with were Marines

[@CraftySasquatch]

@@andymike6575 Worked with many engineers in aircraft overhaul industry and I would agree. 2 of the finest engineers I have worked with where Marines.

[@jSamm1203]

I can count on one thing Dave - great information all the time

[@LarryMcClain-w1i]

Dave thank you so much. the info is out standing Cummins has to get these in the mix - Big fan of your vids I hope to get a monster motor in my old truck soon.

[@peterredecop20]

I was blown away with this video I would love seeing a engine like that great job and idea

[@Ewxm]

Dave, that was so awesome!🇦🇺

[@wigit2216]

my lbz is still in great shape but if or when it needs a rebuild or replacement im going to make sure i try these! super cool tech and science.

[@trw_53]

Enjoyed that one very much. Thanks. Be nice to have more of those !

[@georgeedellstein9133]

Fantastic presentation. There's still hope for the ICE! Thanks.

[@timothyengland3]

I watched the first video when the salesman had the quiet engine,,, personally i was interested to see more, but i commented then 1 engine wont convince me, but listening to this discussion im more interested tan ever to see some monster engine builds,,, must admit that is nice packaging too,,,

[@SkyzBlazed]

I love how Dave sit's there intensely trying to learn every bit of what's being told to him. Even if you've learned so much over the years, you can always take the time to learn more.

[@wildbill1313]

You and the boys (Speed Freaks) I never would’ve guessed that 😂😂😂😂😂❤❤❤I love these sit downs,don’t know what you’re talking about, I love it

[@heathharry8424]

Great video guys, really enjoyed it, Chris's explanation on how the dimples create the turbulent air flow on top of the piston, for better combustion was awesome. Looks like speed of air have a very bright future, hopefully they can break into the more common auto industry so all the EGR and DPF crap can be done away with. A diesel engine that burns more efficiently, runs quieter, better fuel economy, lower EGT with extra power, with out that evil EGR, and possibly without a DPF, wow that's very impressive...

[@adamp9377]

He's a good sounding salesman. Let's seem some real world testing.

[@ncjsgrki]

They have real world testing result on their website including 3rd party testing.

[@betterwithrum]

Like Boeing right?

[@SubvertTheState]

I could see how this is a very sketchy business. Your modification is minor, the efficiency change is also minor, but if it works it's definitely worth it. Fluid dynamics is one of the most complicated physics disciplines in science, so who's going to check or verify? Especially when the thing you are changing is an event which takes microseconds, and is an explosion which is contained inside a steel sealed chamber. But the way he described it for us, it actually makes perfect sense. I believe it. But obviously trying to observe the change before and after will not be noticable. The change is over the course of millions of cycles.

[@TheLumberJacked]

@@SubvertTheStateIDK, I’d say a potential “extra” 100 to 200FtLBS of torque would indeed be noticeable. If you already have the emissions equipment removed from your vehicle, then a quick sniff test will tell you immediately that something is happening. That’s what is surprising me, it’s a legit improvement and should be greatly noticed all around. Especially if you have an EGR temp gauge installed on your truck. This is waaay less voodoo sounding than most mods sold for trucks today. That says something.

[@gunztommiegunz]

They already have

[@marks4973]

Fascinating technology. Thank you Dave! ps I had 1979 vw rabbit diesel had to wait 3 months from order to ship from Germany. Mechanical injection, no turbo. 42 city 50 hwy mpg. 69 cents per gallon. Got before gas crisis and never had to wait in line for limited 10 gallon leaded.

[@daveshepherd7582]

I love this stuff. Who would have ever thought a dimpled piston could change so many different things

[@keithstudly6071]

And who would claim of such improvements as proved without an unusual number of tests being done. Seeing is believing and I haven't seen anything yet. Less talk and more showing and while we do that we have many competitive arenas where these ideas could be demonstrated so why waste time BSing with Dave? I recall a device to create swirl in the engine intake and amazing claims for that which was all bunk. Things like this come along on a regular basis. Cold fusion anyone?

[@hhiser6206]

Has Speed of Air experimented with coating and dimpleing the cylinder head and valve surfaces? The goal being to eliminate EGR and PTF components. If the engine burns cleaner and more efficiently you don't need those systems.

[@Duramaxjon]

You still need emissions systems because efficiency alone is never going to eliminate NOx emissions. SCR systems with DEF reduce NOx, which is one of the more harmful gases from the combustion process. Look into the science of it. DEF reacts with NOx to substantially decrease the amount of NOx coming out the tail pipe. I wish there weren’t emissions systems on trucks but they do make sense as long as they don’t constantly fail

[@mattphillips4260]

would be neat to see this guy and talk compact tractors and diesel engines

[@jasonharryphotog]

a brilliant product for those who want a brilliant product, way to go dude your onto something.

[@franklogan494]

$3,770 and up for a set of piston’s, Plus Rebuild, you can buy a lot of diesel for that kind of money. Someone on here just posted the perfect answer, send it to Gale Banks and see what he says.

[@JAMESWUERTELE]

The gapless rings might be worth the resources and effort.

[@Otrwego]

Very cool and interesting interview! Thanks guys! Keep kicking butt

[@RenoBusdriver]

Nice to know they are located in my City.

[@byronneal8638]

Makes me want to build a 7.3 Powerstroke with these pistons and gap-less rings just to see what the emissions would look like.

[@danielprice3609]

Please do and slap it on a dyno and share the info

[@richieburrows7928]

Go to their website they have a 7.3 with emissions on it. It’s getting 500+ horses. I have these pistons with 58,000 miles in my 2007 Dodge 3500 6.7 Cummins. I am very impressed.

[@JAMESWUERTELE]

I’ll run my truck to Dave’s (1997) let me try them out. I’ll do some testing.

[@Arexodius]

I hope you'll actually get to do that!

[@bassdaze]

i have an lly and id really like to see the performance... Good times comimg for diesel owners

[@james10739]

Id like to see like a duramax with twin turbos so you could keep the 2 sides of the engine separate and see the exhaust on each

[@ruger8412]

Fuel air mixture in the military bombs has been perfected its called a vacuum bomb & it makes them 3 times stronger blast radius sucking all the air out of the surrounding area. A combustion engine is the exact same principle.

[@havokmaster2]

I am excited for the 2.0L vw tdi pistons to release. I wanna see how those little guy make gains. Total seal just needs to come out with rings for those pistons. Add that with the bosch glow plugs that moniter combustion pressure. You'd have a pretty great data pig.

[@kalescullen3600]

I am addicted to this video watched it eight times and still keep learning stuff

[@GhostSniper67]

20:07 The dimples basically break the air tension like when they spray water into the diving area of a swimming pool. To break up the surface tension.

[@j.b.9895]

I think that’s done so the high divers can judge the distance to the water

[@localenterprisebroadcastin5971]

Yeah that’s all fine and dandy until the intake valve closes and the cylinder is under 30 plus psi of boost and god knows what combustion pressure….learn about Bernuli’s principle and pascals law 😂😂😂

[@debi5292]

@@localenterprisebroadcastin5971 I bet the dimples do nothing till TDC. At that point they may very well bring some turbulence in the combustion chamber. Hard to do, but how many have tried? That turbulence across the face of the piston would make a difference.

[@j.b.9895]

@@localenterprisebroadcastin5971 I guess you know more the PhD engineers

[@frederickburns1739]

I've been a diesel knuckle buster for about forty five years. When I was still wet behind the ears the chief engineer on the ship told me that the black smoke that diesels produce was crystals of unburned fuel. Now that I'm retired some people ask me questions about the regen systems on their tractors and semis; I tell it's a catch can that when full goes into a 1,000 degree burn cycle to git rid of the soot. And some ask if it harms the engine? Which I tell them the results aren't in; but it does cost you acres or miles per gallon because of power loss!!!

[@theundergroundlairofthesqu9261]

Mr. Dave! You don't remember the 70's accurately! The VW Rabbit diesel started out as a 1.5 liters (50 hp) then moved up to 1.6 liters (52 hp.) Much later, came the 1.9L, after that, I lost track... (Sorry, it's the internet, there's always some guy... today, it's me.)

[@WingspeedGarage]

Before I read your last sentence I was thinking exactly that 😂

[@michaelhaley2212]

I need more tech content Dave! I love this these lessons! Great content. I wish you had a shop Tacoma Washington! area!

[@Appalling68]

I just LOVE this sort of Piston Head stuff. Just wow!

[@RagsHSC-7]

I never thought about that thin boundary layer just above the Piston. The way I I thought the way after ignition that the explosion would consume 100% of that cylinder to the top of the Piston. That's very interesting. Makes sense. But when you sink that the massive explosion would consume at all. Not just the fuel, but at least some of it reachs the top of the piston ?

[@michaelfriedrich5571]

Wow this info is great way to bring it Dave this channel is amazing

[@jjmcgettigan6403]

Love this! we run (4) Durmax Trucks for the last 10 years. Just like everyone else most of our problems are the DEF systems. Same on all our equipment. I would buy full rebuilds on my trucks if they can make this piston technology as and add to delete the ERG Def systems!

[@GNX157]

Now add Lake Speed’s Total seal gapless second ring package and deep valley cylinder hone and check the result.

[@paullongley1221]

It’s actually a relief to see people working in this way, truly approaching issues from first principles. It’d be great to see this rolled out to regular production engines. However, having worked in the automotive sector for over forty years, my cynical side says this will only ever be a niche product because too many people are too heavily invested in all the add-on post combustion treatments. But I do hope I’m wrong.

[@ericknutson602]

What an amazing meeting about combustion of an engine. So cool . Literally.

[@flashbeaster]

17:40 when that Duramax came in it was quiet because of the custom made duramax specific pistons, 2 days after an oil change with additives and treated diesel engine

[@gnd111]

Got the same design pistons in my Harley..no lie...running great so far in over 10,000 miles

[@CharlMarais247]

20:54 I had a feeling that's what your trying to do... But actually doing it... Incredible

[@mark98070]

Who would have thought something so simple could produce such an overall improvement

[@alexanderzubar9593]

They have a fluid dynamics professor with supercomputer level programming to figure out the dimpling. That’s not very simple.

[@briansmith3134]

Like to see a live Dyno before and after dimple pistons

[@seanbatiz6620]

In as much as I truly can’t wait for the end result testing/performance of y’all’s 7.3 PS monster engine build, wanting sooo badly to do same of my spare 7.3 in shop, on engine stand, waiting to be gone thru, after watching this video & listening to everything your guest was breaking down, has my mind racing with thoughts of what sort of numbers could be ascertained from one of my 1955 Buick Nailhead 322 V8’s, incorporating these pistons⁉️‼️‼️ I’m currently building a 1966 IH Scout 800’s 152 inline (slanted; half-V8) 4 banger engine… this specific engine had interesting “semi-Hemi” designed piston tops, which conformed to the IH head specifically casted/machined of its combustion chambers! Strange shape at that too. Anywho, sadly, this original head had several cracks thru water jacket, from frozen water/coolant. Had to swap out its pistons for regular standard flat-top IH pistons that I pulled from a ‘75 IH Scout II’s 345 V8.. using one of that 345’s heads as well. Swapped rods, since diff length, new lifters, original 152 cam reworked/ground/polished, new oil pump. That 345 became a parts unit, due to half of that otherwise, low wear/milage engine, being extremely damaged by sitting water in it.. figure it was exposed to the elements w/hood open, no carb, no cover, for DECADES! Anywho, gunna be interesting to see how she (152) runs after all of this… wish I were putting in a set of these Speed Air pistons tho

[@Akya2120]

SO GLAD to hear OM606 thrown in there 👍... When!?

[@speedofair]

This month!

[@rossismokesall]

When something seems too good to be true, it usually is

[@billrussell7053]

I remember seeing a piece years ago about an Indian guy that was doing the same thing on engines. That had to be in the nineties. I think it was on a show like sixty minutes.

[@williama.baltes5230]

If you knew nothing about diesel's or plane wings you are well informed right now. This is a great video.