Edit: I did actually end up manufacturing the carb cheater and am currently on order number 2,018 or so - seriously ... Can be purchased here: carbcheater.myshopify.com/ to put a definitive end to all the "this or that wont work" comments - everything in one video that address all the arguments. Am I promoting the idea of putting a mower carb on a vehicle? no - but dang what a fun science experiment! Now the Carb Cheater has raised a lot of questions - if I did go through the effort to sell that tech as a kit, would there be any interest? Would be a lot of work on my part.

A hooptie V8 getting the same mpg as my hybrid. And a Ford too. Respect.

The first thought I had (aero-engineer) was the small carb was running a higher velocity at the same mass flow of air/fuel for the power the engine is making. That could create turbulence itself due to boundary layer effects. Your 90 degree turns also would be effective for mixing the fuel and air. I think your theory is correct on atomization of the fuel. Apparently you found a sweet spot in all of this and created something amazingly good at efficient operation. Nice job!

Too cool. I remember a guy in the 70s, during the gas crisis then, being able to get 28 mpg with a V8. It's rather disappointing that my current truck only gets 14 mpg. I know the manufacturers can do better. You did it in your garage! You are amazing. Thank you for the great video.

LOVED YOUR LAWNMOWER CARB ON V8 VIDEO !! I've done a similar fuel conversion on a nice vintage 86 Chevy 4x4 van that came with a factory installed camping interior. I did the 4x4 conversion & engine swap a few years ago, my wife & I used this rig to tow our RV & assess the backcountry. It's running a 383 stroker, auto trans & a gear vender. I purposely kept the running gear on the van old school with no computer as I'm somewhat electrically challenged. I conducted several years of research prior to delving into these projects & to avoid melting down the newly built stroker motor. With a 4-barrel carb this rolling breadbox gets 10 mpg on a good day with a tailwind. I first converted it first to run on hydrogen but output was not sufficient. Note; Prior to experimentation & avoid engine meltdown issues I installed Manifold Temp. & Air/Fuel ratio gauges. I ultimately converted the van to run very well on a gasoline vapor unit I designed that includes a float valve setup installed in bottom of the unit.. I'm currently running a chinese knock-off of 54 Chevy single barrel carb on the van. Bet a lawnmower carb like yours would work equally well if it was used in conjunction with a vacuum advance like you built. Most don't realize that Henry Ford patented a working gasoline/kerosene vapor unit back in the teens. I was fortunate to observe one of Ford's factory units work on a local truck & was provided with the plans. Only issue is that gasoline vapor freezes same as propane, I believe the solution is to introduce more exhaust heat from the manifold but got stopped a couple years ago due to health issues. My goal was to try & exceed 100 mpg running vapor & distribute plans for free to those interested. This goal would not likely be well received by our taxation & energy moguls.🤣 *The vacuum tuning unit you built is very ingenious, wish you were closer to Idaho to consult & incorporate on my project. I'm now 81 with health issues so unfortunately the van may end up with another like minded mad scientist. I would welcome your input. Chuck T. Kuna, Idaho

I'm 74 yrs old and you just blew me away ! Had visions of the Pogue Carburettor and the Long Range Desert Group right off the bat. Not just well...but extremely well done sir ! The World needs more people like you !

The IAC unit was brilliant. That's the advantage point. This shows that it IS possible to make a Carb unit compliant inexpensively and be made completely functional. Fantastic job!

This is honestly mind-blowing. 😮 you need to start mass producing that tuner you made 🎉 congratulations on this project! Amazing work

I say sell it as a product, There’s a market for it, especially in nowadays fuel prices reaching a higher price every day. Why not? Make 30 units, sell them for a fair price that you and the customer walk away happy, maybe apply for a patent? I say why not? It’s an extra stream of revenue to secure a brighter future! You sir, are American ingenuity at its finest!

That carb cheater of yours is great. I'm not surprised at all that the thing ran on a mower carb because I've messed with them enough, but that cheater of yours really puts the whole thing together. I'm really impressed with your understanding of electronics, software, and mechanics. Pretty uncommon to find someone who's as capable with a keyboard as they are with a screwdriver. I really need to get my feet wet with the 3d printing and app stuff, would really open up some doors for me on my hobbies.

First of all... I am not a mechanic or a tinkerer even close to anything to your level. I'm just a necessity fixer, cause I grew up poor and things need to run. However, what you're doing I wouldnt' call impossible becoming reality. What you're doing is the most, real to life, hot rodder thing ever... but in reverse. Unlike all the 70's and 80's EPA shit... you're accomplishing some of it while keeping the sound of the car, the fun of the car, and useability of the car at a maximum considering. You're true to spirit it seems. Good job my dude, great work

It doesn't matter where you are from or even, where you are right now, what matters is where you are headed! Good job, sir!

I loved the comment about "over carbing" your engine. I had a 1985 F250 with a 351M. I thought I was hot sh1t as a teenager and slapped a 750 holley on top thinking I was going to get awesome power. I never did get it tuned right. I even switched brands to an Edlebrock 750. The thing still always ran like crap. A guy I worked with, built and raced drag cars and stock cars and informed me my carb was way too much for the truck. he took a 600 edelbrock right out of the box, slapped it on and the thing ran like a raped ape. in a half hour my guy took everything I thought I knew and tossed it right out the window 😂

Love this! You know people have forgotten that for MANY years single barrel carbs ruled absolute. Granted they were designed for automotive use and not a lawnmower, but the point is, they were very capable carburetors. My '62 Chevy II had a single barrel Ball & Ball that would roast the tires without hesitation, the added velocity of the charge was key. Also to note, I had a 1976 Monte Carlo with a 350cid engine that originally came with the large 2 Barrel which I swapped out for a Quadrajet. My mileage jumped from around 21 to 27 because of the much smaller primary throttle bores (as long as I kept my foot out of the throttle. The move to larger carbs was needed for the demand for power which quite frankly sealed the fate of the efficient single barrels because the general public started demanding power over efficiency.

That was awesome. Never underestimate the mind of a car geek/engineer Well done.

I don't understand why you would think that this wouldn't work. When I was a boy, the neighboring farm had an old international dump truck with a 600 cubic inch inline 6 in it. The intake manifold and exhaust manifold were mated together, and it had a tiny 1 barrel carb on it. It was decent on gas, but it had to completely warm up.

Needless to say I am impressed. You need to market this! As a motorhead that enjoys restoring vintage vehicles, this would make those older classics less expensive to drive on a day-to-day basis. I would buy this set-up no questions asked.

Loved the comment about coming from the trailer park-where you've been in life is never as important as where you are going. In life, we regret the things we do a lot less than the things we didn't-if you're unsure about how to improve your life, action beats inaction every single time and you miss 100% of the shots you don't take in life. I build automated processes in my company and am a tool and die maker by trade and started on the shop floor. Everyone in this country has that opportunity no matter how humble our beginnings-you just have to want it.

You the man.....market the dang thing....please...the planet needs more guys like you and carbs like that

The general idea behind the spread bore (a.k.a Quadrajet) is to run on as small of a carb as possible until you need the extra air. Carbs work best when they have high flow

This is Automotive Genius at it's finest and shiniest example, bar none. In history, men have had their lives ruined and their inventions to save fuel cost have been destroyed. Ridiculous or not, we all, as end user consumers, have been denied those ingenious benefits. I think this is a wonderful "FU" to the greed of mankind. It does not matter where you come from, I appreciate your tenacity to prove the point AND for keeping your channel OG.

I would love to see a dyno comparison between the the two carbs to get an idea of the mpg-horsepower ratio

This is one if not the best video I've ever watched on utube. Great content.

Well Done Champ. Your control device is so elegant. So impressed. Yes that smaller carb venturi allows for superior fuel atomisation but it's your wise management of stoichiometric ratio under differing engine loads that takes full advantage of the better gasification = it is simply beautiful. Probably superior to any MPFI for economy.

I just happened to stumble upon this series at the start. I don't even know how it popped up in my view list but you had me interested right from reading the title of your first posting. I have been an automotive tech for over 30 years and I am quite impressed with your level of knowledge for your age. You effortlessly are able to explain all the science and engineering behind this project. I remember a long time ago hanging out in the garage with my buddies and discussing conspiracy theories about big oil companies buying up patented fuel economy devices just to keep selling fossil fuels. I really think your onto something here. I can't wait to see what happens with the 4 barrel. Please keep us posted on that.

I would be interested in seeing how much cleaner the engine is running, emissions,spark plug readings. Sure runs nice! Enjoy the channel!

I’m so impressed with everything you’ve done with that lawnmower carburetor. I would totally pay to get this set up on my RV to lower the gas consumption.

Well done young man. Never be afraid of doing something out of the ordinary. You might discover something exceptional. You did in this case for sure.

This is the kind of content I like, I'm always on the lookout for informative auto related material. Man, this project really goes the distance. More of the same gets my vote.

That was an easily earned subscription. Good job. You could nearly single handedly save the entire classic car industry.

I think you did well...in 1982 I worked for Honda we had ordered a few Civics that had a little tiny one inch or less Throttle plate on them and they were apparently good for 62 miles per gallon ..fun fact .. That air in a smaller intake will travel faster than air in a bigger one..plus if you want to increase air in a smaller pipe just mount a small egg into the intake with a variable height slider ..it will pull in more air..old german Tech

Love the neatness cleanliness and state of the Art organisation

This is awesome. I would love to see this same setup on a 4 cylinder carbureted engine. I bet the gas milage would be crazy.

I am impressed! Not enough techs in the industry with your caliber of understanding and ability to think out of the box!

This is so awesome for a project. I'm blown away.

That was cool, being a small engine man. Always knew that once a lawn mower engine went past design rpm levels it went fat, never gave it a thought of a vacuum leak to thin the mixture. We used to build racing mowers and really spin the motors on them. Ya know using twins and singles. Reworked ignitions to help with the response. Basically doing the same as you. Huh this video really scratched the old think lump. Thanks.

If there EVER was someone who DESERVED a "liked and subscribed", it is certainly you, my friend!! Exceptional effort! Amazing Video!! It does my 66 y/o heart proud to see that there are youngsters of your caliber out there today.. Well done my man! This video will be on my mind for quite some time, I'm sure!!

A lawnmower carb on a 302 is a hilarious idea, but the way you’ve done it and the results you’ve achieved are really impressive

This is mind blowing. Obviously you have got a lot of mechanical and electro digital and drafting/engineering knowledge. Got to say I am extremely impressed. Very well done. Keep up the experiments and best wishes in the future.

I think it would be fair to say this type of ingenuity is not something the auto manufacturers want out there. Such good work!

Luke is well on his way to KZfaq legend status. 👍 dude I can't get enough of this project!

Your grasp of the tech involved in what makes an engine run is very impressive. very well done young man. Yep I may just try this myself, I have an inline 6 with a two barrel on it and a pile of lawn mower carbs.

Man this was so cool to watch! Very impressed with your knowledge of both mechanical engineering and programming ability! Subscribed! 👍👍

wow, wow and wow, hubby is a mechanic and is very very impressed with you, also mentioned that you would make a great automotive teacher

As a 3D printing enthusiast (custom built my own 3D printer out of the parts of another), I would highly recommend you use a 0.5 (what I run) or a 0.6mm nozzle, with layer heights around half the nozzle size. High resolution for that type of part probably isn't super necessary to its function. Also, your part probably doesn't need to be as beefy as you made it, considering it's not running under any real pressures. Instead of making the base of it so thick, maybe add ribs instead. Slim it down, take a lot of the unnecessary material out, and save yourself some filament money! Great work man, your MPG result is pretty crazy.

Dude! I've wanted to experiment with something like this for over a decade. Glad a fellow Iowan was the one to try it out. I've been looking at various carbed cars the past couple years, intent on getting back to my roots, and now I really want to try that setup on whichever I end up getting. I'm hoping for the 78 Buick Regal V8 if all goes well the next few weeks. I'm moving from Texas back to Cedar Falls soon, too, so I'd love to have someone as motor-nerd as I am to bounce ideas off of. Rock on man! 40mpg in a 78 Regal for daily driving and road-tripping is my main goal for the year.

I’m sorry this sat in my watch later playlist for so long. Great work and great music!

Great presentation! Outstanding. Keep up the great work.

Great little series man! Love the content and your style. You seem like the guy I’d love to meet at car shows and swap meets and just talk car and motor stuff!

I really enjoy your work not only on this project, but on most all your videos. When I have questions about the carb or timing on my Mustang your videos are my go to tech manuals. Thank you for the content and all the hard work that goes into making it.

Impressive! Smart guy,good content. Love the way you think things thru.

Subscription earned. Not only did you make an hour long tutorial on stuff I wish I could figure out or try but never would be able to lol!! But you never made the excuse and bring this type of OG stuff to the table to make my night! My Dad always told me it’s not what you know it’s who you know. You’re the kinda guy that can get out of anything ahaha!!

I think it would definitely be worth your time to try commercializing the system. Try it out on your 1964, and your 390 V8 truck for more proof of concept. If you could get 25 MPG out of the truck... (I know it’s low geared)

This is the coolest stupid thing I've seen that worked soooo much better than expected, as it wasn't expected to even work. Great work on working out all the problems.

I think what you are doing is awesome! Nice work and free thinking!

Amazing young man! Great job!

I think I was more impressed by your 3d printed parts and your vacuum control setup than the overall success of the test. I'm no expert in fluid dynamics, but it all made sense to me and why it was successful.

That is amazing man. I literally had to see it to believe it. What an achievment.

Final mpg test is around 55:00. Super interesting video 💯 might have to find an old car and do this myself 👍

Watching this is cross between Mr. Wizard, Evil Mad Scientist and a curious mind. That could be very FUN and dangerous. Take me to the merch!

That was ridiculously impressive! I’m blown away on multiple levels on what you’ve accomplished here. Wow! Is all I can think of. You’re intelligence and understanding of fluid dynamics is amazing. Would love to be friends and pick each others brains and share knowledge. Bravo! Compliments!!

Great stuff man, ingenuity at its finest! I would love to see more detail on how you designed and built that idle air bypass to keep the AFR's around 14:1 though, and the app design. I'm good with all the mechanical and ignition stuff, but that APP and your FMB (fucking magic board) you built are beyond me.

Absolutely amazing! Don't ever let someone tell you, you can't do something. EFF THEM!!

I'm very impressed. Great job!

Carb conversions are my favorite. Me carburated my previously EFI Honda Civic for funsies. First version was a VW beetle carb. Second Version was the WEBER 32/36. I used a 1990 DPFI intake manifold and made adapter plates. I think my next project will be my vg30 on my Nissan hardbody. It is always nice to see someone who shares the same hobby.

This guy is great but something tells me he's gonna windup on a milk carton if he keeps this up🤣

Thinking outside the box 📦 😮. Good Job 👍

What a great experiment.... and the result was really cool. Learned some stuff.

I would definitely like to see this run on a slightly more definitive fuel measurement, put a gallon in a container and tie it in then drive it till it’s almost drained measure the remaining amount in the container and calculate mpg

Hi Luke, I just have to thank you for the incredibly informative and helpful content you put out. Very impressive, you've helped countless numbers for sure. Please consider creating some type of Carb Cheater tech kit. You would again be helping countless numbers in a world where rising costs are pushing many to make some tough choices and find efficiencies wherever possible. With some of the highest food prices and gas here in Eastern Canada nearing $9.00 a gallon it's becoming quite a struggle for many, myself included. I would quite happily rip into my daily/work truck, an 88 F150 with an aod trans, remove the efi system and convert to a similar setup you've accomplished with the Maverick. The knowledge and understanding to put that setup together has proven to be quite valuable given the interest shown. I stand with them and would definitely invest in what you've created. Cheers from Canada

Fun build. I had a 72 4 door that I bought for $100. $25 at the junk yard replaced the fender/bumper and related junk. I drove it for about 2 months without an air filter and a connecting rod found it way out of the block. Good times.

You did a fantastic job on your video production ! I find 3D printing fascinating!!

So happy you continued this series Luke! Always a pleasure to see what you're up to. Happy you show the nay sayers wrong. Have a good weekend!

I like your era of music my brotha👍 I'm a huge Primus fan myself. Keep on doing what your doing and thank you very much for the awesome content my brother.

I had a friend that owned a granny grocery getter, 1973 Dodge Dart, with a pre-smog controlled, wheezy, anemic 318 cid V8. It had a small one bbl carb about the same size as the one in your hand. It was good it wasn’t fast as this guy was not so bright but fairly reckless, mostly driven by his not so brightness. It would have needed a lot of suspension and steering work to make it speed worthy. I think it did get pretty good fuel economy. Super build! Thanks!

Don't ever listen to those fools!! I injoyed the hell out of your instructions and you are very knowledgeable about what your doing and I am amazed at it all!! Very very cool and I wish I had some of that ability!!

You do know the eventual has to happen. A complete intake manifold replacement with 8 of those carbs stacked up like a Ferrari with a stack of Webers! I DARE you!

Absolutely love this series Luke!!! I think a lot of people might be interested in this setup including myself

U my friend, are on a whole new level! Thx for vid

Very interesting. Thank you for explaining. Enjoyed.

I knew an old guy who told me about old carborators getting 60 mpg then that old tech was bought and hidden from public use. This video makes me believe him. Most excellent video, thanks man

I would be very interested in seeing a full pull with the lawnmower carb setup. Daily driver looks to work fantastic and mind you, I'm not looking for quarter mile figures, just curious as to how a full pull would be.

I JUST CAME ACROSS THIS , YOU ARE A VERY INTELLIGENT PERSON, THIS IS FREAKING AWESOME, 40 MPH IN A V8 , SWEET DEAL BUD , BE CAREFUL WHAT U CREAT AND SHARE , GOVERNMENT DOESN'T LIKE PEOPLE STEALING THEIR MONEY

Honestly this is a brilliant idea , Proves that their is alot of potential for gas engines to get better gas mileage. And it does not take crazy complex tech / Direct injection. Dont need 300Hp just to go get grocery's lol lol Im sure some will argue with that. Well done sir. Well done!

I was like most everyone else on the size of carbs needed, then I got my '73 Ford F-250 with an FE 360. It came with a 2 barrel, and I immediately thought like most everyone else that it'll need a 4 barrel. Then I found the math and found "360 ci x 4800 rpm divided by 3456 = 500 cfm". Question appeared then, how often will it be turning 4800 RPM? (hardly ever), it makes maximum horsepower @4000 RPM and maximum torque @ 2400 RPM. So a Holley 500 CFM 2 Barrel carb is more than I'd ever need. But increasing it's fuel mileage with that setup is definitely of interest to me, especially at these prices. Let's keep this going.

This was a fun project. I've really enjoyed this series. Thank you!

Sorry to hear that so many people have been so rude to you. I thank you for the information / education. I am working on a Quadrajet for my 350 GM boat motor.

Just stumbled on this video. You know, there was someone who claimed to have invented a carb that could get incredible gas mileage, but the oil companies wouldn't allow that. Now, this is from a year ago. So hopefully he's still alive. ;-) Well done!

This was awesome. Great insight into how it works. I think you should definitely market this.

Pretty wild. I always like your content. I enjoy the tech side. You explain things very well.

That’s hilarious😂 love that chain rattling around!

Enjoyed every minute and was able to follow and understand, thank you

Luke thank you so much for sharing your knowledge with us on your channel ! Please keep on doing what you do ! Richard Pica

Now comes the time to start selling the adapter

Great vid! All around impressive experiment, curious on the dyno numbers. The mpg's are worth what ever the power loss is, make a two carb system... lol. Keep up the good work, and yes sell the kit! Don't miss this opportunity, people will buy it, fuel isn't getting cheaper👍

One could only imagine your theory applied to a motor cycle or marine engine , your brilliant. Great work.

l keep rewatching these videos, there really well done... l cant wait to try the same thing...

I think what AND how you did what you did, is freaken AWESOME!!! GREAT job buddy!!!

Amazing...this is mind blowing 😮

Dude this is amazing