Go to a race track and listen to the TDI cars go by. Almost silent. Audi engineer said about a decade ago Noise=Lost Energy. Find ways to eliminate noise (through engineering) and capture more energy.
The fact that they are willing to go to a shop with the equipment in it shows they aren't trying to hide. Would definitely be interesting to see a unbiased review from this shop
Need to see 2 engines with the same build except the pistons, instrumented and tested on a calibrated engine test rig on the same fuel at the same time. - Specific fuel consumption (g per kwh) - instrumented pistons for temp - exhaust gas analysis.
No two engines are identical. We've built quite a few identical spec engines and optimized them on the engine Dyno and found 2% difference on 500 HP. Honing finish and technique, ring types, etc. many factors involved.
@@TTGTO288 I give too much attention, which is why I was quoting the video. I don't have the time or interest to back and forth with a troll. Don't you have better things to do with your life?
This has quickly become one of my favorite RUclips channels. Thank you for sharing your knowledge. Please keep the videos coming as ive watched every single one on your channel so far, and it's boring on this app until I see "Daves Auto Center uploaded a new video to their channel". Haha keep em coming !!! God Bless.
Well, if it’s a coating, then you could have stress and cracks and all sorts of things happening over time. The tear down I was thinking of includes not only the piston tops, but the rings the cylinder walls, the various bearing surfaces, valves, everything. It’s pretty safe to say, if one change in an engine, It will cause changes elsewhere
Good point, ceramic is tough as nails when it comes to heat but can also be brittle on impact. My thought is, what if I creep into detonation territory and get a very slight ping, does that piston top shatter? What about full on detonation? I've had a motor detonate and shatter the front and rear-center plugs in a v6 Gas engine and the engine still runs and drives fine but isn't as smooth at idle. The detonation wasn't that bad internally, no boost, lower RPM, when it happened. Was something with the coil pack or plug dropping out at around 90% throttle pulling from a dead stop. The takeaway is the fact it shattered the plugs and even cracked others around the center plugs, the ceramic on the plugs.
Can’t wait for you to do a video on a build or rebuild using that style of piston. Very interesting stuff. Thanks for sharing Dave. Take care and stay safe.
Maybe the dimples create some kind of cushion in the combustion process or it could reduce the friction between the piston and moving flame front. Either way the same technology improved golf ball travel through the air!
@@garybulwinkle82 nope it's Voodoo Actually the ceramic coating You can do yourself And someone said putting dimples in the top of pistons has been around a while. And total seal rings have been going on three decade ; maybe longer...there is one more thing drill and tap oil Jets to spay up inside tops of the pistons to cool them Even more
@@MikeSmith-nu9wt😂. Don’t blame the engineers man they can engineer a near perfect vehicle if they wanted. But when an engineer submits his designs or ideas they get the money people up top telling them to make it cheaper. It’s not the engineers that’s just silly to think that. They could make a vehicle last 40 years no problem but it would cost us $200,000 for a little car
Agreed, if only you could figure out how to capture all that wasted heat energy, and figure out the mechanical forces wanting to rip the ice engine to pieces. If only there was a technology that could get >90% efficiency
@@Lexidezi225it would probably cost the same, but they would have to spend more for manufacturing and couldn't mark the price up as much anymore. Car manufacturing costs are a fraction of their sale price.
As a physicist, 13 to 16 mpg seems unreasonable. In the end, efficiency is physics and the only way you increase efficiency of the diesel cycle is by increasing compression ratio, increasing temp, and decreasing the temp sink. Their pistons might provide a higher compression ratio. The ceramic top might reduce heat loss (higher temp), and the heat sink (atmosphere) is going to be the same. I’m not sure you can get 20% more efficiency from these changes, and then add in environmental emissions considerations, and that makes me more skeptical. Maybe, but this definitely falls into the “show me” category.
In my 19 years of automotive powertrain testing experience, this appears to be a good product idea but is giving me a little too good to be true vibe and another "re-inventing of the wheel". I'm not opposed to seeing more on this but I find it hard to believe timing events haven't been changed as well as the amount of injections per cycle since both of these things have a huge effect on diesels combustion noise. As good as it is being sold, it makes you wonder why this concept hasnt been being utilized by cummins.
@@stephenbrown3760 I thought the same then realized that manufacturers want to spend as little possible to make a product. I know GM changed piston design on the 3.0 Duramax and the newest version is producing a lot more torque and HP.
@seandurgin I truly believe that if it does what is says. He will back it and tell us the truth. Just like he does when he test everyone's intake. Shows the data that they are all bull. Shows the data why they are bull..
My 1974 Merc Cougar XR7, when i ported & polished the Elderbrock Intake i put in golfball dimples inside just by hand, 1992 when i had that 400M (0.020 over) out. Had lots of fun in it over the decades. Was stationed at Edwards AFB working on B2 at the time :) all of them were just under the carb & inside the runners where a die grinder w 1/8" carbide cutter fit too. No idea or dyno testing but managed 17mpg for a long time.😊
Having worked with some of these changes myself, I am impressed. It took weeks to get the plating and modifications done. Sending pistons among several shops. And no dimples! These pistons bring several factors together. Ultimately it’s quicker and likely cheaper to run with these pistons. Ring blow by has been a source of soot loading in the oil. It shortens the life of your oil. Keeping the soot and stray idle fuel wash out from getting in your oil is worthwhile!!!! Based on my experience, I am definitely going with these pistons in my next 5.9 build..
This channel just continues to grow to be better and better. I just love and seriously appreciate the effort you guys put in, in achieving absolute excellance in automotive engineering. The way that you guys do not close your eyes and minds to new ways of doing stuff, is testament to your commitment in constantly moving the whole internal combustion industry forwards. Im just off to watch this video again, it really is solid gold stuff. Many thanks David in the UK.
Thanks for the videos! Bill and Ernie Elliott were using The golf ball dimpling on pistons and combustion chambers. Since the 1980’s in Nascar. Until someone let the cat out of the bag, and then Nascar changed the rules to a lower mandated compression.
I'm a level 8 crank polisher/ distributor, and let me tell you! The efficiency gains I've seen in the forward and return strokes using this technology are astounding! I can deliver the heaviest of loads now in a single trip. Also by passing the savings onto my loyal customer base means that I'm making fewer tedious trips over to your mom's place!
This is easily one of my favorite videos from you guys! I would LOVE to see more in depth content from the Monster Engine side of things with engine break down and builds!! Either way, great content guys and happy to watch the growth! If you guys end up needing a well trained CNC Machinist, i would be willing to travel to work for a great company like you guys!
@@DavesAutoCenterCenterville Great idea but what will happen when government wants all EV's by 2035 or so. All this great technology will be thrown away. I hope I'm totally wrong. I would not want that at all. Nothing beats the sound of a V8. I own a 67 Firebird with a 455CID, I told my brother if this engine ever needs rebuilding it's coming to you. Great Job to you and your team. It's obvious not only you know your trade but your also passing it down to the next generation of mechanics and builders.
@oilman1758 the government is going to find out that you can't legislate a market change. That's what's gonna happen. Electric vehicles suck. And they still will in 10 years.
@@oilman1758that's wildly unrealistic and even they know it. The power grid can't even handle existing loads as it is. Charging ONE ev once takes as much power as the power consumption of several households. So youre talking multiplying the national power supply several times over to make that realistic
On a 2 stroke dirtbike engine, the squish factor comes into play. If the compression is uneven, you build hot spots. I might dimple my next piston just to see.. Pretty cool idea.
Just a 'side thought' - the dimples would tend to lower the compression ratio and increase the total chamber volume by the amount of material removed from the dimpling process. Will that necessitate a skim of the head to restore the compression ratio? HA - or am I completely wrong? CHEERS from AUSTRALIA.
We tested this on a wet flow bench. So we took 318 heads one we put HUGE dimples into combustion chamber, one we roughed up 40grit, and one we polished. The wet flow showed the dimples and rough surface worked well to stop pooling of fuel. With polished HORRID combustion chamber of 318s it puddled on head didnt get complete "burn" or atomization AT ALL. So there is some truth to this in keeping fuel in air. Direct inj fixes that obviously. But im interested in what benefits on head of piston would be. Our dimples where much more close to each other. But it did work. Wow the noise is way reduced
Dave i like your stuff so far. You seem like a straight up, honest guy who has spent years perfecting his craft or trade. Can't wait to see more on this. Increasing power, economy, longevity while lowering maintenance seems like the golden ticket.
Hello from England, 🏴 I came across your channel by chance and really enjoy listening to your content. Look forward to seeing you on Discovery Channel.
Wow, all of these arm chair engineers not getting the message you’re watching… United engine machine is a “piston”developer “… even Dave says he skeptical as he is a engine rebuilder engineer / with years of experience…. At least we have a company that’s wants to “improve “ longevity of pistons design that has a “patent”… which means… vehicle manufacturers would have to buy the product as they buy materials from various venders….. lowest bids wins the bid….. please don’t go off the rails …. I have no dog in this fight, but kudos to United Engines and hope to longevity of your pistons building technology… I hope this pans out…. And Dave for your vast experience and a yearn to learn more for the industry knowledge … love your channel
I race jr dragsters in late 90s early 2000s. One of my engines intake port was dimpled like a golf ball, it was a very ahead of its time and fast engine.
Hello here from Miami FL I think 🤔 I will have to buy a 6.7 power stroke from Dave. This team is and represents what america always was, keep up the good work. We need today more than ever more people like you.
AMEN DAVE & CREW! :) I love nothing more than turning on youtube and checking out your videos and learning from them. My 2 kids 7 & 5 say can we watch The Motor man on youtube. Honestly guys love what you are doing not only in your shop but online also. Been watching for a few weeks now and been meaning to say thank you. Not only is it about motors but also relevant in life also. All the way from Gold Coast Australia. Luke.
Hi Dave, I am a recent graduate for mechanical engineering. I just watched this. I used to work at a golf course and knew the amount of engineering that goes in to golf balls. It’s insane how impressive this is and I appreciate you sharing this with the people! Keep at it, you have me hooked as I use to be an auto / aviation tech now turned engineer. It’s crazy how eddies impact flow characteristics and the use of the flame from an internal combustion engine can be manipulated. The only issue I see is the ceramic top on that piston. As we all know. Transport can track a million miles easy. I wonder about the test of time. However, big big props to this innovative project and the excellent execution. Cheers!
Dave I used to be a mechanic and I was surprised by this piston! Pretty cool if it really works? BTW I really like your channel. You're not afraid to comment on a bad design and as a mechanic I've seen lots of bad designs, so I subscribed to your channel. Keep up the good work.
I love this stuff Dave. Those pistons are some real "Rearden Metal" style development. I'm sure you'll get some blow-back like "why try customers with an untested product?" Well, what can you say: "I trust my own judgement".
I don’t work on cars anymore but damn I love this channel.Dave you have to be the most honest boss ever.Thanks for letting us ride along with you and the guys.
Highly persuasive. We need you to test a car for noise, temperatures around the engine exhaust emissions chassis dynamometer for power and torque objective road test for acceleration and fuel consumption . Then you pull the engine change the pistons and repeat all the tests. If you can show positive improvements we will believe you - then they will become standard fit for rebuilding everything everywhere .The theory does sound credible - no doubt they will be much more expensive at least initially - but if this is true it is staggering .
@@DavesAutoCenterCenterville Thank you, much look forward to seeing developments on this issue . Greatly enjoy the videos by the way here 40 miles north of London
Thanks for sharing Dave. I have been hearing about this technology for a few years now but never had a chance to do any testing myself, so keep us updated on any installations or testing you do.👍👍👍
I recently had speed of air piston put in my 6.7 Cummins from my 2020 Ram 5500. Results are, Engine runs smothers, less vibration Very quiet running. Have only run about 3000 miles so far so I'm waiting for more break in before pulling firm fuel efficiency numbers. But it's looking good.
Respect has been earned from this channel!! I just purchased a 2013 Equinox. Just over 150,000 miles. People say stay away from those! They burn oil! Which one of those people have stopped and opened up the engine to replace the low tension rings? Which one of those have installed a catch can to separate the harmful liquid being passed back into the engine causing the buildup on the intake valves? Bought this vehicle sight unseen from Vegas. Brother-in-law did the legwork. We'll fly into Vegas use it as our 'rental' vehicle and then drive it back to MN.
I've seen & heard of these @SpeedOfAir dimpled pistons for a year & a half or so now. From what I've seen\heard\watched they seem to be a very dramatic change in something like a piston thats been pretty much the same for decades if not a century or more. Adding the dimples has shown increased MPG in various vehicles of 10, 15, 20% depending on what else is going on. Thats alot of increase when your talking about a OTR semi truck going back & forth across the country every week of the year. It's like a really good increase in the combustion cylinder leaving less un-burned fuel, & overall just a cleaner exhaust coming out of the pipe\stacks. Who woulda thought golf ball dimple technology would make it into the internal combustion engine on piston faces? No one! It is crazy to see improvements like this after being the same for so long! Id put these in my 7.3 in a second....if i ever had to rebuild it cause it died, cause it probably won't. Comng up on 300k miles in my '00 f250 7.3 zf6, with nothing other than normal wear & tear maintenance stuff & I just put a new(reman) set of injections into it last summer. Shes still going strong as can be!
@@MarkSDCA its definitely on the list, along with proximity fuses for AA rounds, forced induction, shaped charge warheads. So many things that came to be as a result of ww2. As horrible as the time was it slingshotted the world ahead by decades in tech.
I was just looking at these pistons a month ago and was thinking, I wish someone with the knowledge would take a deep dive into what they claim is true. I'm like you I was skeptical about it but the more I research it seems like great technology. Thanks for posting the video
Speed of Air technology is something new, I’ve asked if they would make piston’s for my old 7.3 but they have no plans, they make the pistons for 6.0 liter Cummins and Cat.
Yea that would be fantastic but unfortunately not as many of us with the ol 7.3 anymore to perk these guys up. Just imagine how weird it would sound with the injectors still hammering.
Looks and sounds like a winner Dave, I have worked diesel service and repair for all of my life but never knew this type of piston was available. I remember when Slick 50 came out and it was awesome to quiet down a Diesel engine. Wynn oil for transmissions, Minneapolis Moline G1000 had this howling noise that would make you deaf. Keep up the great work.
I’ve used gapless rings from total seal in many of my race engines….they do work…. In fact one engine in particular comes to mind……a Hot SBF stroker engine was built with conventional style rings…(good rings) After just a few thousand miles an oil residue was noticed in the throttle body from the crankcase vent return….engine ran great with Great compression and didn’t burn oil….that winter the engine was pulled and a few things were done to it ….total seal gapless rings was one of them…for the next 2 seasons of drag racing and street driving there wasn’t any oil residue in the throttle body…engine ran better than ever and picked up almost half a sec in the quarter…(big gains in the drag race world) not sure how much the rings helped with power but I’m sure they did help.
What I have seen and heard on this video is a game changer. I would hope that this new technology would continue to grow, I am retired but am still interested in progress.
Dave i love your videos! Im a traveling construction superintendent from maine. Love working on things and learning. My son is actually moving to utah, his wife is going to be attending BYU in provo. Keep up the great content!
Going from 13mpg to 16mpg = $576 per 10k mi at $4 a gallon ( UT, salt lake basin price as of 3/11/24) . This yealds a 9month ROI for my 25k per year based on, The Diesel Podcast, speed of Air interview price point of $1025 for cummins 5.9. Less if you discount the price of stock replacement slugs.
Excellent video Dave. we have also been collaborating with speed of air, UEM, and total seal, with a performance gasoline version of pistons & rings, currently being tested, and documented. The results so far, are nothing short of incredible.
I know it's an old engine in the minds of most, but... some of us folks driving 1.9L TDI 4-inline engines in Volkswagens would LOVE having this as a modify/rebuild option. There is a shocking number of them on the road, worldwide.
Awesome presentation!!! I have never heard of the dimpled pistons, until now... Very interesting.... The Total seal rings , I have heard about for a long time... And they are really nice...
If this piston is so great and giving a 25% increase in fuel efficiency, much longer oil change intervals and decreased exhaust temperatures, WHY are the manufacturers not using it? WHY is this being sold as an aftermarket engine rebuild and not for the OEMs to just make them with these pistons in the first place? Imagine the look on engine manufacturers executives' faces when you tell this simple part means 25% increase in fuel efficiency and longer oil change intervals and better emissions!!! They would be breaking down the doors of this company ordering millions of them.
@@JulietHotelFoxtrot It's difficult to imagine that any of these problems couldn't be overcome. Even a much higher cost, say double, would be more than made up for using 75% as much fuel as a standard diesel engine over the life of that engine, not to mention a few fewer oil changes. It is highly unlikely that if OEMS were the ones doing it, that the cost would be double if today a rebuilder only needs to charge 50% more. To be honest, this just sounds like a whole lot of BS. The video was long on hype and very, very short on skepticism or testing.
You know what could really use those pistons is a 7.3 or a 6.0 The dimple doesn’t surprise me on sound, VW reduced their diesel noise by adding a big dimple in the cylinder head
Looking forward to seeing some results from monster engine builds,,, it still looks too good to be true,,,, better combustion, better atomisation is always going to produce power, but the egt reduction, the noise,,,, to me I need to see it, anyway will continue watching with interest
Love your channel Dave. Just curious the cost of this If I had a duramax let’s say w 50k and I wanted these pistons. Thats a big overhaul. Or let’s say I had a fleet of 30? 30 motors at your rebuild price ? That’s a lot of diesel fuel. Is the juice worth the squeeze. I do love the concept
Awesome videos Mr Dave, I wish that your shop was down the street from me, here in southern California outside of Los Angeles. I would totally trust you to repair anything on my vehicles, I'm a plumber by trade but I have been doing auto repair work myself. I have a 68' Ford Rachero that needs engine and transmission repair, I'm hoping to retire soon so i can actually focus on my project. Keep putting out those excellent videos!
Dimpling has been used for years in motorsports and 2 stroke applications to "clean up" inefficient combustion chamber design. The idea is to read the piston crown for gaswash in the carbon, and introduce dimples to create turbulence and ignite the stale areas for an even flame front/burn. The same idea as unshrouding valves, removing sharp edges and blending valve reliefs.
THIS is a Direct result of the great Show of MYTHBUSTERS where they tested wind resistance of vehicles that were dented all over the vehicles with golf ball sized dents and they proved it provided greater fuel mileage.
The difference between a golf ball with and without dimples is Huge ! So i can see this making a difference . I really want a build with before and after test . I will be waiting for the video
I'd love to see 2-3 different engines, 100% stock, run on a dyno for several hours each. Record power, emissions, take oil samples, etc. then do nothing but change the pistons and rings then repeat the same tests, collecting the same data.
Bach in 2001 when I was only 19 yrs old, I built a 355 Chevy with Total Seal Gapless rings and I also noticed the oil stayed much cleaner for a far longer time. Just turning the crankshaft over by hand, I could tell there was virtually no leak down.
Go to a race track and listen to the TDI cars go by. Almost silent. Audi engineer said about a decade ago Noise=Lost Energy. Find ways to eliminate noise (through engineering) and capture more energy.
You have a point, common rail engine are so silent yet so powerful
The fact that they are willing to go to a shop with the equipment in it shows they aren't trying to hide. Would definitely be interesting to see a unbiased review from this shop
Need to see 2 engines with the same build except the pistons, instrumented and tested on a calibrated engine test rig on the same fuel at the same time.
- Specific fuel consumption (g per kwh)
- instrumented pistons for temp
- exhaust gas analysis.
No two engines are identical. We've built quite a few identical spec engines and optimized them on the engine Dyno and found 2% difference on 500 HP.
Honing finish and technique, ring types, etc. many factors involved.
And don't tell the guy who's doing all the tests which one has the magic pistons.
@@hotrodray6802when they are claiming 20% improvements it should be easy to see even if the engines are out a few % from each other.
@@hotrodray6802 If they alternate/swap the pistons on the two engines over multiple tests then it should be rather easy to calculate the error.
You wouldn't notice a difference between the 2! Like engine additives, this a buy me trick. Too many factors involved as well
"Without testing and science it's only speculation" -Dave
....best quote ever!....
Do you not pay attention?? It's been tested and researched. Science is just a word you use to sound smart because you lack attention span ...
@@TTGTO288 I give too much attention, which is why I was quoting the video. I don't have the time or interest to back and forth with a troll. Don't you have better things to do with your life?
This has quickly become one of my favorite RUclips channels. Thank you for sharing your knowledge. Please keep the videos coming as ive watched every single one on your channel so far, and it's boring on this app until I see "Daves Auto Center uploaded a new video to their channel". Haha keep em coming !!! God Bless.
Thanks, will do!
Completely agree. Keep them coming.
Same!! I hope they never change!
couldnt agree more! found them about a month ago and is now my favorite youtube channel!
SAME! I’m not even a mechanic
Would like to see lifespan results.
Teardown analysis at 60k, 100k, 150k, etc
Exactly it does have more surface area though id think longerrrr no??? This is a good one
Well, if it’s a coating, then you could have stress and cracks and all sorts of things happening over time.
The tear down I was thinking of includes not only the piston tops, but the rings the cylinder walls, the various bearing surfaces, valves, everything.
It’s pretty safe to say, if one change in an engine, It will cause changes elsewhere
Good point, ceramic is tough as nails when it comes to heat but can also be brittle on impact.
My thought is, what if I creep into detonation territory and get a very slight ping, does that piston top shatter?
What about full on detonation?
I've had a motor detonate and shatter the front and rear-center plugs in a v6 Gas engine and the engine still runs and drives fine but isn't as smooth at idle.
The detonation wasn't that bad internally, no boost, lower RPM, when it happened. Was something with the coil pack or plug dropping out at around 90% throttle pulling from a dead stop.
The takeaway is the fact it shattered the plugs and even cracked others around the center plugs, the ceramic on the plugs.
You'll do that, yourself.😅
They have test results of research they did over time in cat engimges
Can’t wait for you to do a video on a build or rebuild using that style of piston. Very interesting stuff. Thanks for sharing Dave. Take care and stay safe.
Me too
That's what I thought this video was gonna be. Not just him being paid to advertise for that company with a vid😅
First thing I thought when I heard the truck pull in.
As a mechanic here, this sounds like Magical Pistons. I'd love to see some Dave tests on these Pistons!
Maybe the dimples create some kind of cushion in the combustion process or it could reduce the friction between the piston and moving flame front. Either way the same technology improved golf ball travel through the air!
@@garybulwinkle82 nope it's Voodoo
Actually the ceramic coating You can do yourself
And someone said putting dimples in the top of pistons has been around a while.
And total seal rings have been going on three decade ; maybe longer...there is one more thing drill and tap oil Jets to spay up inside tops of the pistons to cool them Even more
You are very correct to want to see some research and testing. This link from speed of air may be helpful. Thanks for watching!
www.speedofair.com/r-d
I think squirter were factory install on early 911`s @@donniebaker5984
I agree 100%i dont believe it until I see it
Automotive engineer here, Absolutely Amazing!
There is so much potential in the combustion engines.
Stop with the shit designs on compact vehicles thank you
@@david600Ri can't believe anybody would admit that shit amoungst all these mechanics on here , liable to get lynched 😂😂😂
@@MikeSmith-nu9wt😂. Don’t blame the engineers man they can engineer a near perfect vehicle if they wanted. But when an engineer submits his designs or ideas they get the money people up top telling them to make it cheaper. It’s not the engineers that’s just silly to think that. They could make a vehicle last 40 years no problem but it would cost us $200,000 for a little car
Agreed, if only you could figure out how to capture all that wasted heat energy, and figure out the mechanical forces wanting to rip the ice engine to pieces. If only there was a technology that could get >90% efficiency
@@Lexidezi225it would probably cost the same, but they would have to spend more for manufacturing and couldn't mark the price up as much anymore. Car manufacturing costs are a fraction of their sale price.
As a physicist, 13 to 16 mpg seems unreasonable. In the end, efficiency is physics and the only way you increase efficiency of the diesel cycle is by increasing compression ratio, increasing temp, and decreasing the temp sink. Their pistons might provide a higher compression ratio. The ceramic top might reduce heat loss (higher temp), and the heat sink (atmosphere) is going to be the same. I’m not sure you can get 20% more efficiency from these changes, and then add in environmental emissions considerations, and that makes me more skeptical. Maybe, but this definitely falls into the “show me” category.
I agree with you. I’m not a physicist, but I do understand with diesels the leaner you run, the hotter the burn and more NOx is produced.
Yeah and of the new piston is increasing compression that's definitely not some technological breakthrough.
@@hoonaticbloggs5402You mean gas motors
I happen to think this is total snake oil.
Embarrassingly so, much like engines that run on water.
@sungear
Agree on the snake oil....though engines run on water vapor, via steam isn't.
Noise... flat surfaces reflect waves. Curves too, depending on frequency. Break that geometry, and resonance is attenuated.
In my 19 years of automotive powertrain testing experience, this appears to be a good product idea but is giving me a little too good to be true vibe and another "re-inventing of the wheel". I'm not opposed to seeing more on this but I find it hard to believe timing events haven't been changed as well as the amount of injections per cycle since both of these things have a huge effect on diesels combustion noise. As good as it is being sold, it makes you wonder why this concept hasnt been being utilized by cummins.
20% fuel mileage is huge, hard to believe an OEM hasn’t done this
@@stephenbrown3760 According to the numbers this guy is citing: just shy of a 26% mileage increase... 25.95%.
This is just like the magic carburetor in the 70s that would get you 50 mpg on a big block that the oil companies kept hidden....
Buy a set and build a motor. Post the results as you put miles on it, make a good series.
@@stephenbrown3760 I thought the same then realized that manufacturers want to spend as little possible to make a product. I know GM changed piston design on the 3.0 Duramax and the newest version is producing a lot more torque and HP.
I can't wait for Gale Banks to get a hold of a set!
My thought exactly.
Same. You know he will put every single instrument in his shop to use to check the claims. With proof of yes or ya no.
You don’t think Gale will dismiss it because it wasn’t his idea?
@seandurgin I truly believe that if it does what is says. He will back it and tell us the truth.
Just like he does when he test everyone's intake. Shows the data that they are all bull. Shows the data why they are bull..
@@seandurginnope , he has backed products that werent his
My 1974 Merc Cougar XR7, when i ported & polished the Elderbrock Intake i put in golfball dimples inside just by hand, 1992 when i had that 400M (0.020 over) out. Had lots of fun in it over the decades. Was stationed at Edwards AFB working on B2 at the time :) all of them were just under the carb & inside the runners where a die grinder w 1/8" carbide cutter fit too.
No idea or dyno testing but managed 17mpg for a long time.😊
I really Hope Gale Banks gets a hold of these guys and makes a video on this tech
Yeah me too. So he can expose this absurd snake oil BS
I think Gale already has these pistons in the duramax engines he builds for the JLTV military vehicles!
@@genechoate5020 wouldn't doubt it. He has done so much engineering and lab work over the decades he'd be the one to talk to
@@genechoate5020 we want data!
Yes UEM GALE BANKS MAN THEY WOULD MAKE SOME KILLER STUFF
Having worked with some of these changes myself, I am impressed. It took weeks to get the plating and modifications done. Sending pistons among several shops. And no dimples!
These pistons bring several factors together. Ultimately it’s quicker and likely cheaper to run with these pistons.
Ring blow by has been a source of soot loading in the oil. It shortens the life of your oil. Keeping the soot and stray idle fuel wash out from getting in your oil is worthwhile!!!!
Based on my experience, I am definitely going with these pistons in my next 5.9 build..
Racing MX I got some insight on squish shaping of heads and scalloping of intake ports. This is next level and very cool!
Very cool!
This channel just continues to grow to be better and better. I just love and seriously appreciate the effort you guys put in, in achieving absolute excellance in automotive engineering. The way that you guys do not close your eyes and minds to new ways of doing stuff, is testament to your commitment in constantly moving the whole internal combustion industry forwards. Im just off to watch this video again, it really is solid gold stuff.
Many thanks
David in the UK.
You're the best!
This channel is the definition of RUclips ,every single video he posts are things that I really want to watch , what a time to be alive.
Thanks for the videos!
Bill and Ernie Elliott were using The golf ball dimpling on pistons and combustion chambers. Since the 1980’s in Nascar.
Until someone let the cat out of the bag, and then Nascar changed the rules to a lower mandated compression.
It's amazing that a piston and rings can make that much of a difference.
Evolution of IC motors using advantages of physics ... Modern computer modeling is taking IC motors to new levels.
@@100pyatt I was thinking computer modeling was involved, thanks.
It's BS.
@@OtisFlintWhat evidence do you have to support that?
@@OtisFlinthave you tested it? Wheres your lab id love to come check it out
This is pretty incredible. I noticed how much smoother my 6.7 was when I started using scheaffer oil. Add those pistons holy crap
Dont forget this guy has a product to sell, lets see long duration in production testing
Better in every single way with no drawbacks and yet no manufacturers employ it? 🤔
yeah if I had a nickel for everytime ive heard that
I got out of car and truck work 24 years ago as a 4X ASE master with L1 and L2, and this is unimaginable stuff. Kudos to the development team.
I am there with you ! And interesting stuff ! I am also Certified Level II Fire Technician with the california Fire Chiefs !
I'm a level 8 crank polisher/ distributor, and let me tell you! The efficiency gains I've seen in the forward and return strokes using this technology are astounding! I can deliver the heaviest of loads now in a single trip. Also by passing the savings onto my loyal customer base means that I'm making fewer tedious trips over to your mom's place!
The ceramic coating and porous surface makes sense, it definitely seems as though it would cut down noise levels in the engine.
It'll make the green with one shot too !! 🙄😂
This is easily one of my favorite videos from you guys! I would LOVE to see more in depth content from the Monster Engine side of things with engine break down and builds!! Either way, great content guys and happy to watch the growth! If you guys end up needing a well trained CNC Machinist, i would be willing to travel to work for a great company like you guys!
Amazing how much innovation that still continues to happen on combustion engines.
Great point!
@@DavesAutoCenterCenterville Great idea but what will happen when government wants all EV's by 2035 or so. All this great technology will be thrown away. I hope I'm totally wrong. I would not want that at all. Nothing beats the sound of a V8. I own a 67 Firebird with a 455CID, I told my brother if this engine ever needs rebuilding it's coming to you. Great Job to you and your team. It's obvious not only you know your trade but your also passing it down to the next generation of mechanics and builders.
nobody's taking your gas engines. lose the tin foil buddy@@oilman1758
@oilman1758 the government is going to find out that you can't legislate a market change. That's what's gonna happen. Electric vehicles suck. And they still will in 10 years.
@@oilman1758that's wildly unrealistic and even they know it. The power grid can't even handle existing loads as it is. Charging ONE ev once takes as much power as the power consumption of several households. So youre talking multiplying the national power supply several times over to make that realistic
On a 2 stroke dirtbike engine, the squish factor comes into play.
If the compression is uneven, you build hot spots. I might dimple my next piston just to see..
Pretty cool idea.
Just a 'side thought' - the dimples would tend to lower the compression ratio and increase the total chamber volume by the amount of material removed from the dimpling process. Will that necessitate a skim of the head to restore the compression ratio? HA - or am I completely wrong? CHEERS from AUSTRALIA.
@elvispresley3340
Yes I already have a milled head and it seems to build more heat..
We tested this on a wet flow bench. So we took 318 heads one we put HUGE dimples into combustion chamber, one we roughed up 40grit, and one we polished. The wet flow showed the dimples and rough surface worked well to stop pooling of fuel. With polished HORRID combustion chamber of 318s it puddled on head didnt get complete "burn" or atomization AT ALL. So there is some truth to this in keeping fuel in air. Direct inj fixes that obviously. But im interested in what benefits on head of piston would be. Our dimples where much more close to each other. But it did work. Wow the noise is way reduced
Turbulence is a fantastic thing once you combine fuel & air.
Roush racing was putting dimples into intake manifold runners on Ford NASCAR motors back in the 80s similar results increased power lower fuel use
The main difference in your testing and their product is the ceramic coating on top of the piston..
@@kenkahn138 it also made the runners easy to slime up with gelled mothballs for a real good qualifying lap🤫
They placed the dimples where the injection jets spray. So there probably don't have to be many of them.
Dave i like your stuff so far. You seem like a straight up, honest guy who has spent years perfecting his craft or trade. Can't wait to see more on this. Increasing power, economy, longevity while lowering maintenance seems like the golden ticket.
Hello from England, 🏴
I came across your channel by chance and really enjoy listening to your content. Look forward to seeing you on Discovery Channel.
Awesome! Thank you!
Wow, all of these arm chair engineers not getting the message you’re watching… United engine machine is a “piston”developer “… even Dave says he skeptical as he is a engine rebuilder engineer / with years of experience…. At least we have a company that’s wants to “improve “ longevity of pistons design that has a “patent”… which means… vehicle manufacturers would have to buy
the product as they buy materials
from various venders….. lowest bids wins the bid….. please don’t go off the rails …. I have no dog in this fight, but kudos to United Engines and hope to longevity of your pistons building technology… I hope this pans out…. And Dave for your vast experience and a yearn to learn more for the industry knowledge … love your channel
Correctly sized rod bearings make a diesel quieter, too.
I race jr dragsters in late 90s early 2000s. One of my engines intake port was dimpled like a golf ball, it was a very ahead of its time and fast engine.
Idk what to say.....I'm sure Dave has a set of the trick pistons coming and when he tells us it's for real....well then I'm sold..👍🇺🇲
Hello here from Miami FL I think 🤔 I will have to buy a 6.7 power stroke from Dave. This team is and represents what america always was, keep up the good work. We need today more than ever more people like you.
AMEN DAVE & CREW! :) I love nothing more than turning on youtube and checking out your videos and learning from them. My 2 kids 7 & 5 say can we watch The Motor man on youtube. Honestly guys love what you are doing not only in your shop but online also. Been watching for a few weeks now and been meaning to say thank you. Not only is it about motors but also relevant in life also. All the way from Gold Coast Australia. Luke.
Hi Dave, I am a recent graduate for mechanical engineering. I just watched this. I used to work at a golf course and knew the amount of engineering that goes in to golf balls. It’s insane how impressive this is and I appreciate you sharing this with the people! Keep at it, you have me hooked as I use to be an auto / aviation tech now turned engineer. It’s crazy how eddies impact flow characteristics and the use of the flame from an internal combustion engine can be manipulated. The only issue I see is the ceramic top on that piston. As we all know. Transport can track a million miles easy. I wonder about the test of time. However, big big props to this innovative project and the excellent execution. Cheers!
Dave I used to be a mechanic and I was surprised by this piston! Pretty cool if it really works? BTW I really like your channel. You're not afraid to comment on a bad design and as a mechanic I've seen lots of bad designs, so I subscribed to your channel. Keep up the good work.
Cool, thanks
Dave thank you so much for teaching me about the new pistons your channel is great keep these types of videos coming
You bet!
I love this stuff Dave. Those pistons are some real "Rearden Metal" style development. I'm sure you'll get some blow-back like "why try customers with an untested product?" Well, what can you say: "I trust my own judgement".
I dunno squat about motors but this channel is Fantastic!! Great job Dave & Team!! Wonderful and informative videos!!
Dave gentry and son trucking out of Tennessee is already put these pistons in a 12 seven Detroit and they have worked out very well for him
Thanks for the feedback Lee👍
I don’t work on cars anymore but damn I love this channel.Dave you have to be the most honest boss ever.Thanks for letting us ride along with you and the guys.
Been out of the business almost a decade yet strangely fascinated by your channel. Can’t wait for and hope you get your tv show.
He's already got a TV show, right here on YT!
Exciting piston technology premiered by Dave’s Auto Center. Thanks Dave!
Fascinating! I'd love to see a production diesel sedan with these pistons someday
That would be cool!
Highly persuasive. We need you to test a car for noise, temperatures around the engine exhaust emissions chassis dynamometer for power and torque objective road test for acceleration and fuel consumption . Then you pull the engine change the pistons and repeat all the tests. If you can show positive improvements we will believe you - then they will become standard fit for rebuilding everything everywhere .The theory does sound credible - no doubt they will be much more expensive at least initially - but if this is true it is staggering .
Appreciate your comment. You have some very good questions and thoughts. This link from Speed of air may be helpful.
www.speedofair.com/r-d
@@DavesAutoCenterCenterville Thank you, much look forward to seeing developments on this issue .
Greatly enjoy the videos by the way here 40 miles north of London
lets do this test on a single or twin cylinder motorcycle!
Thanks for sharing Dave. I have been hearing about this technology for a few years now but never had a chance to do any testing myself, so keep us updated on any installations or testing you do.👍👍👍
Very interesting, I too need more independent proof. But I'd sure try it if I'm doing a rebuild
I recently had speed of air piston put in my 6.7 Cummins from my 2020 Ram 5500. Results are,
Engine runs smothers, less vibration
Very quiet running.
Have only run about 3000 miles so far so I'm waiting for more break in before pulling firm fuel efficiency numbers. But it's looking good.
So in 3k miles you haven't even bothered paying attention to fuel efficiency?
@@volvo09With the money he spent on the Pistons swap he doesn’t care about fuel economy. It probably cost him $10,000-ish to do the piston swap.
you MUST meet Lake…. I worked with his dad and Lake Jr is of the same character and has incredible KNOWLEDGE! Lake Speed is the cat`s meow!
You bet ! 👍
Every episode is a much watch for me . Great facilities and common sense .
Dave's thumbnail face is the face my friend made when I told them what I'd do for a Klondike Bar.
Respect has been earned from this channel!!
I just purchased a 2013 Equinox. Just over 150,000 miles. People say stay away from those! They burn oil! Which one of those people have stopped and opened up the engine to replace the low tension rings? Which one of those have installed a catch can to separate the harmful liquid being passed back into the engine causing the buildup on the intake valves?
Bought this vehicle sight unseen from Vegas. Brother-in-law did the legwork. We'll fly into Vegas use it as our 'rental' vehicle and then drive it back to MN.
Gale Banks Gale Banks Gale Banks
I've seen & heard of these @SpeedOfAir dimpled pistons for a year & a half or so now. From what I've seen\heard\watched they seem to be a very dramatic change in something like a piston thats been pretty much the same for decades if not a century or more. Adding the dimples has shown increased MPG in various vehicles of 10, 15, 20% depending on what else is going on. Thats alot of increase when your talking about a OTR semi truck going back & forth across the country every week of the year. It's like a really good increase in the combustion cylinder leaving less un-burned fuel, & overall just a cleaner exhaust coming out of the pipe\stacks. Who woulda thought golf ball dimple technology would make it into the internal combustion engine on piston faces? No one! It is crazy to see improvements like this after being the same for so long! Id put these in my 7.3 in a second....if i ever had to rebuild it cause it died, cause it probably won't. Comng up on 300k miles in my '00 f250 7.3 zf6, with nothing other than normal wear & tear maintenance stuff & I just put a new(reman) set of injections into it last summer. Shes still going strong as can be!
American ingenuity at its finest!
Dave has the best information n trades ever. I greatly appreciate him sharing his knowledge
Glad you think so!
You had me at mining application and WW2 aircraft engines.
High octane fuel won WWII.
@@MarkSDCA its definitely on the list, along with proximity fuses for AA rounds, forced induction, shaped charge warheads. So many things that came to be as a result of ww2. As horrible as the time was it slingshotted the world ahead by decades in tech.
Looking forward to it! 2 of my favorite Automotive Channels for sure!
Why do I feel Gail Banks is going to tear this guy apart when he gets a hold of those pistons.
I was just looking at these pistons a month ago and was thinking, I wish someone with the knowledge would take a deep dive into what they claim is true. I'm like you I was skeptical about it but the more I research it seems like great technology. Thanks for posting the video
You and me both!
Since they build motors it’s simple. Dyno test a motor with standard pistons and then change them out and test again. Do a ,”calab”.
Channels that have honest content like this make the world a better place.
Speed of Air technology is something new, I’ve asked if they would make piston’s for my old 7.3 but they have no plans, they make the pistons for 6.0 liter Cummins and Cat.
Yea that would be fantastic but unfortunately not as many of us with the ol 7.3 anymore to perk these guys up. Just imagine how weird it would sound with the injectors still hammering.
The cummins 5.9/6.7, cat are the bigger demand for now, so they'll focus their energy there and as demand and money comes in, expand to older engines
Looks and sounds like a winner Dave, I have worked diesel service and repair for all of my life but never knew this type of piston was available. I remember when Slick 50 came out and it was awesome to quiet down a Diesel engine. Wynn oil for transmissions, Minneapolis Moline G1000 had this howling noise that would make you deaf. Keep up the great work.
But what about the longevity of the pistons? Do they wear out after 20000 miles?
I love this Channel! Learning a lot from Dave and the crew... keep up the great work.
This is the most impressive video I’ve seen on RUclips I always seem to learn something new and I’ve been a master tech for almost 20 years
Grateful to have your experience on our channel! Thanks for posting
I’ve used gapless rings from total seal in many of my race engines….they do work….
In fact one engine in particular comes to mind……a Hot SBF stroker engine was built with conventional style rings…(good rings)
After just a few thousand miles an oil residue was noticed in the throttle body from the crankcase vent return….engine ran great with Great compression and didn’t burn oil….that winter the engine was pulled and a few things were done to it ….total seal gapless rings was one of them…for the next 2 seasons of drag racing and street driving there wasn’t any oil residue in the throttle body…engine ran better than ever and picked up almost half a sec in the quarter…(big gains in the drag race world) not sure how much the rings helped with power but I’m sure they did help.
Really cool stuff. Keep up the good work.
Thanks, will do!
What I have seen and heard on this video is a game changer. I would hope that this new technology would continue to grow, I am retired but am still interested in progress.
These pistons are gonna make cold starts a bitch.
So you put these pistons in a 6.7 Duramax, add in some Bank's upgrades and AMS oil ... I want to see that build plus all of Dave's upgrades.
That would be awesome!!!!!!! Love to see that.
no id like to see a better company that actually has decent products instead of banks, like fleece performance or similar
Dave i love your videos! Im a traveling construction superintendent from maine. Love working on things and learning. My son is actually moving to utah, his wife is going to be attending BYU in provo. Keep up the great content!
That is awesome!
Going from 13mpg to 16mpg = $576 per 10k mi at $4 a gallon ( UT, salt lake basin price as of 3/11/24) . This yealds a 9month ROI for my 25k per year based on, The Diesel Podcast, speed of Air interview price point of $1025 for cummins 5.9. Less if you discount the price of stock replacement slugs.
Excellent video Dave. we have also been collaborating with speed of air, UEM, and total seal, with a performance gasoline version of pistons & rings, currently being tested, and documented. The results so far, are nothing short of incredible.
Ok, so now I have to see Dave put these pistons in an engine and do the test to prove the claims.
I know it's an old engine in the minds of most, but... some of us folks driving 1.9L TDI 4-inline engines in Volkswagens would LOVE having this as a modify/rebuild option. There is a shocking number of them on the road, worldwide.
Do y'all know Mark "the beard of knowledge" from Pawn Stars? I never would have guessed he had a brother who was a gearhead!
I can't wait to see both of you collab. Good stuff. Keep on doing what you do.
Two videos in one day. This, this is good.
Awesome presentation!!! I have never heard of the dimpled pistons, until now... Very interesting.... The Total seal rings , I have heard about for a long time... And they are really nice...
If this piston is so great and giving a 25% increase in fuel efficiency, much longer oil change intervals and decreased exhaust temperatures, WHY are the manufacturers not using it? WHY is this being sold as an aftermarket engine rebuild and not for the OEMs to just make them with these pistons in the first place?
Imagine the look on engine manufacturers executives' faces when you tell this simple part means 25% increase in fuel efficiency and longer oil change intervals and better emissions!!! They would be breaking down the doors of this company ordering millions of them.
Not really, they want to sell you more cars and more gas
@@JulietHotelFoxtrot It's difficult to imagine that any of these problems couldn't be overcome. Even a much higher cost, say double, would be more than made up for using 75% as much fuel as a standard diesel engine over the life of that engine, not to mention a few fewer oil changes. It is highly unlikely that if OEMS were the ones doing it, that the cost would be double if today a rebuilder only needs to charge 50% more.
To be honest, this just sounds like a whole lot of BS. The video was long on hype and very, very short on skepticism or testing.
This channel is great because Dave’s the man. Excellent content
Glad you enjoy it!
You know what could really use those pistons is a 7.3 or a 6.0
The dimple doesn’t surprise me on sound, VW reduced their diesel noise by adding a big dimple in the cylinder head
I love this.
I’m sure there are even more undiscovered efficient coatings out there for pistons, and even others metal-on-metal parts of an engine.
Looking forward to seeing some results from monster engine builds,,, it still looks too good to be true,,,, better combustion, better atomisation is always going to produce power, but the egt reduction, the noise,,,, to me I need to see it, anyway will continue watching with interest
You did see it. That truck he pulled in was a diesel and it was quiet for a diesel truck.
I need more evidence than 1 truck
Great point!
Love your channel Dave. Just curious the cost of this If I had a duramax let’s say w 50k and I wanted these pistons. Thats a big overhaul. Or let’s say I had a fleet of 30? 30 motors at your rebuild price ? That’s a lot of diesel fuel. Is the juice worth the squeeze. I do love the concept
Awesome videos Mr Dave, I wish that your shop was down the street from me, here in southern California outside of Los Angeles. I would totally trust you to repair anything on my vehicles, I'm a plumber by trade but I have been doing auto repair work myself. I have a 68' Ford Rachero that needs engine and transmission repair, I'm hoping to retire soon so i can actually focus on my project.
Keep putting out those excellent videos!
Cool, thanks
Dave, have you verified the results on your own?
Dimpling has been used for years in motorsports and 2 stroke applications to "clean up" inefficient combustion chamber design. The idea is to read the piston crown for gaswash in the carbon, and introduce dimples to create turbulence and ignite the stale areas for an even flame front/burn. The same idea as unshrouding valves, removing sharp edges and blending valve reliefs.
do they also sell timeshares?
We were told of total seal in tech school. Total Seal rings and BRM Ball Hone in the cyl Wall is the best you can give your engine.
I definitely wanna see y’all dyno a engine with those pistons
Both of these companies are mind boggling,so much knowledge,I’ve learned so much,
THIS is a Direct result of the great Show of MYTHBUSTERS where they tested wind resistance of vehicles that were dented all over the vehicles with golf ball sized dents and they proved it provided greater fuel mileage.
air flow over a dimpled surface is a lot different scenario than the air flow a piston encounters
They used this tech in ww2.
@@Strickland325 bouncing bombs
The difference between a golf ball with and without dimples is Huge ! So i can see this making a difference . I really want a build with before and after test . I will be waiting for the video
I'd love to see 2-3 different engines, 100% stock, run on a dyno for several hours each. Record power, emissions, take oil samples, etc. then do nothing but change the pistons and rings then repeat the same tests, collecting the same data.
Bach in 2001 when I was only 19 yrs old, I built a 355 Chevy with Total Seal Gapless rings and I also noticed the oil stayed much cleaner for a far longer time.
Just turning the crankshaft over by hand, I could tell there was virtually no leak down.
Nice to see someone speak at our Ed . UTI Founder Gary Frowner. Keep pushing boss