Easily Tune a Carburetor - Carb Cheater

[@ThunderHead289]

Overview of CC HARDWARE here: kzbin.info/www/bejne/hH-vppdslN1mi68 Buy a Carb Cheater at: thecarbcheater.com (Joe & I completely designed programmed & manufacture these) the generated datalog from the drive - feel free to manipulate it: thecarbcheater.com/?db=FoqVz as always, feel free to drop any comments or suggestions - its a community project designed around everyone's input! Joe and I have had a lot of fun building it both with you here and on the "thunderhead289 - Carb & Engine: Tech/Tune Forum" GROUP on facebook.

[@2000freefuel]

Does your firmware function anywhere within the wideband O2 sensor range? IE can this be used to tune a methanol carb? perhaps even Propane too?

[@ThunderHead289]

​@2000freefuel technically it's all lambda but it's transfered to a gasoline afr spectrum. I don't like trying to memorize different afr spectrums - if you think of gasoline afr as unitless, you know that 14.7 is stoich, richer is obviously lower, leaner higher.

[@richardmoerke9329]

The only thing I have to say is I don’t have a phone. So!!! What do you have to do to get this to work?

[@yougeo]

Is this the device you put on the car with the lawn mower carburetor to make that run best? Because that's the device I'm looking for because I'd like to try that on a car with an old V8

[@ROYALPRIX]

@@richardmoerke9329 It operates via Bluetooth, so a tablet would also do the trick.

[@MisterRisk]

Just when I thought it was time to look into fuel injection for my 1960s carbureted car. I've been tuning these carbs for almost 35 years but it's always a hassle and they (dual carbs) always need attention. Different seasons, different altitudes when traveling, etc. I should have known that someone like you would utilize our existing modern tech to create something like this. Well done.

[@mrdave777]

It’s amazing these Ford trucks. As old as they are, you still see them everywhere!

[@G_Machine_Joe]

The most common question I get asked about the Carb Cheater on my car is fuel mileage. I don't have an answer yet for two reasons... I don't really pay attention to my mileage, and I haven't been able to drive the car enough since installing the CC to notice any change. But I guarantee the fuel mileage is at the very least better than it was before running the Cheater and letting it do it's thing all by itself. Top that off with the engine just plain running better all around, and I don't have to think about what's going on with the carb. I'm not nearly as adept at tuning a carb (and timing) as a lot of people and this has helped tremendously. 👌

[@ThunderHead289]

Super happy to hear it and that is absolutely the intent of carb cheater 🙂

[@freshbutplain1144]

Does the carb have to have a choke? Would this work with a 1050 holly style carb? I checked the site and seen it was a few months out so y’all can gauge how much to order. Do y’all buy the product or make the product? I’m interested.

[@stuckinmygarage6220]

This will still help me be a better carb tuner, now that I have so much more info and logging. :)

[@RANDOMNATION907]

Luke, I live in Alaska. There's zero chance I'll ever be in a situation where you'll be able to tune my carb. That is until now. You haven't devalued your expertise. You've put that expertise into anyone's hands. Very well done guys. I will absolutely be getting one. HAPPY BIRTHDAY AMERICA !!! And, Happy July 4th to everyone.

[@reallifehardtruth4465]

I live in fairbanks. What part of Alaska are you in?

[@RANDOMNATION907]

@@reallifehardtruth4465 I'd rather not say.

[@reallifehardtruth4465]

Fair nuff

[@farmerjim-fat-man-do]

Nice work on the cheater Luke. Been working on carbs for about 35 years and I can see the usefulness of this tool, especially for somebody without much experience with carbureted engines. Widebands were a game changers but this tool knocks it out of the park. You have managed to apply technology from your day job to one of your passions. I hope you sell a ton of these or somebody like Holley writes you a big fat check. I know a lot of people with 15 year’s experience with a specific technology and they have mastered it, just as you have. On the flip side, I also know a lot of people with 1 year of experience, 15 times. Big difference between the two. Good luck with sales!

[@researchandbuild1751]

I don't know a company if going to buy this, it won't work unless your carb is till tuned decently. It's a bit too specialized. Plus they could just copy it, like big companies tend to do.

[@Mr.Killswitch]

Holley would buy it and kill the product to push the fuel injection kits even harder.

[@Barrymckociner074]

Would really hope nobody buys him out of this product due to them being able to make changes and stuff of thise sorts that wouldnt quite be best for the customer

[@bobbyv5143]

Well Luke, I think you and Joe have done a fantastic job with the CC. I am looking forward to having it on my Mustangs. Fuel injection is pretty nice, but pricey... to be able to run with a carb and get the feedback needed for tuning and then just allow the CC to keep things inline from there, just feels right to me. Thanks for all your hard work.

[@_..-.._..-.._]

I love seeing tech applied to older stuff! I knew this was a great idea when I saw you use the lawnmower carb with your phone.

[@ThunderHead289]

I love it on the maverick honestly

[@honorrolls5415]

Once again Uncle Luke has given us a great informative video on his new revolutionary product. I bought one have not had time to put in yet . Glad I didn’t these last two videos are very informative. It’s so rare when some one with the knowledge to built from scratch such an amazing product can talk to you in common guy English. Guys like Luke are few and far between. Bill in Fort Wayne Indiana

[@robbieshobbies93]

I've been a long time watcher of your channel and i knew you are smart with carbs but dang, I'm so impressed that you designed this product and it looks so user friendly. Its a hell of product. Amazing work Luke!

[@ThunderHead289]

Thanks so much 🙂

[@Rick-O-Shay60]

So my understanding is that Carb Cheater operates by continuously monitoring exhaust CO via wide band sensor, with this data the control module corrects for overly rich Air/Fuel via controlled vacuum release by IAC valve to maintain closest possible 14:1 Air/Fuel ratio? This is the technology the Auto manf. used to control carbs before going to fuel injection. Although with your product it allows this tunability available for any carbureted engine. Thanks for making this available to purchase. With the correct marketing, and production... this will be a very successful business for you.

[@andyyu5973]

yea the old feedback carburetors but now with modern hardware to control everything instead of a vacuum tube universe with a lot of vacuum switches, pretty cool and clean drop in solution

[@Chubbycat747]

Price is great compared to fuel injection. I'll be considering it after I get my old car registered. Always dreamed of fuel injection, but after reading about the pitfalls, this seems like a hopeful alternative.

[@teresamarkhofstrand7459]

Hello Luke, I just wanted to say I've been watching your videos since your first 302 budget build and I've been hooked ever since. Your videos have helped me a great deal to understand and properly diagnose and learn aboit all you have done. I just wanted to say your an amazing person and am excited to watch you on your journey. I think you have made an amazing product. I have plans to purchase one for my 302 for my Ranger at some point and am excited to help support Uncle Luke Inc. Take care keep doing what you do OG Thunderheard289 Crew.

[@ThunderHead289]

Man you have been around for a long time! A decade darn near - thank you very much for supporting me and following along on my life journey!

[@jamesbarr3455]

You and Joe are crushing it! Build it better than new!

[@MeleeTV]

Been following him since I stumbled upon his lawnmower carburetor hack I believe. I’m glad he made something out of that setup. Keep building

[@brianramsey4097]

What a awesome device. Can't wait to get it Just went to the store and checked out the price well worth it. Thank you so much for the time you put into it.

[@Reaper4367]

Magnificent product and presentation Luke. Cheers for taking the time to create CC and sharing!

[@kennethsonier1766]

From what I can see this is an amazing product Luke. I've been working on cars for 40-plus years and this is definitely something that I'm interested in looking into further. Great work and a great video as always 👍✌️🇺🇲

[@poolfixerdude]

Luke, your a genius. Am evil one, maybe, but a genius all the same . You're literally changing the game.

[@Averna222]

This thing is at a great price and half of what I was expecting it to be. I don't have anything carbureted currently but I'll have to keep this in mind.

[@ThunderHead289]

We worked hard to make it very cheap for all it has on it 🙂

[@brandoncole3126]

Placed my preorder last week! Very excited to install it on my 88 f150 with the infamous 300 i6.

[@markmatt9174]

Wondering if it can replace a bunch of Vacuum pump junk on my 91 w 300 & 5speed. The ECM died 10 years back so a junkyard unit got it running but not well.

[@brandoncole3126]

@@markmatt9174 mines a 5spd as well. I converted mine from EFI to a bare bones 2 barrel with duraspark. I even installed a wideband. I'm just such a noob that I want to make sure all my tuning is done properly so I can actually use the truck for truck stuff and not have to worry about it.

[@markmatt9174]

@brandoncole3126 did you install the lower psi fuel pressure regulator I think mine runs at 35psi where carb needs 7ish. Last 5 years I haven't put 100 miles on mine from the lack of reliability and ECM & antilock brake issues. If I have to have a truck I get in it otherwise it sets. Been thinking just sell it & if need truck rent one for a day 🤔

[@brandoncole3126]

@@markmatt9174 I replaced the in-tank pump with a larger unit, and ditched the one on the frame rail. Then installed an adjustable return style regulator. It works fantastic. But since I have a 2barrel on an offenhauser intake, on what was an EFI motor, there's a lot of variables I'm fighting while trying to learn at the same time.

[@16vSciroccoboi]

@@markmatt9174 the ECM you replaced with probably needs to have the capacitors replaced. That's what makes them go bad. 15 dollars in parts and some time with a soldering iron.

[@workingcountry1776]

The anti theft feature is worth it alone. Neat device Luke.

[@ThunderHead289]

I can't say that's what it is, but you know 🙂

[@workingcountry1776]

Now to make a diesel cheater for mechanical diesels

[@justin_time]

7:12 Can you change the word in the box from "Cancel" to "Both" for the sake of clarity? Also, XRecorder is an effect and simple app for Andriod OS for screen capturing on smart phones. The videos it produces can then be overlayed in the regular video featuring yourself for better clarity (no screen glare, vibrations, smartphone recording smartphone, etc). Thank you for creating this product and sharing it with the world! I can't wait to see where it goes from here!

[@ThunderHead289]

Good tip, thank you

[@Artoconnell]

I live at sea level, warmer climate, This is a perfect way to use a carb and still tow without melting pistons. thanks Luke. order placed for 2

[@dondotterer24]

Been doing Q-Jets for 30 years and am going to use one on a project but I have to build the car yet. It's going to be awhile..Also in the mix is going to be a brown gas generator Aka hydrogen generator I have tested on fuel injection cars which might cause a problem. But I will start off with out it. Thanks for the videos.i think you have a great product.

[@talon0863]

Id like to see an MPG comparison

[@parkerazz4385]

As would i

[@ThunderHead289]

carb cheater isnt going to do anything you optimizing your carb wont do - but its extremely easier to do with Carb Cheater in your hands. Will an optimized carb be more efficient? of course it will.

[@hoost3056]

​@ThunderHead289 true, but a before and after comparison, especially with these fuel prices would be helpful

[@christianponopp8756]

Is 14,5:1 always the best ratio? Or do you also use other numbers?

[@ThunderHead289]

​@christianponopp8756 14.7 is stoich, leaner is okay but can be dangerous. There's an idle afr, cruise afr, and high load afr that gets targeted depending on conditions

[@MrClutch440T4]

Luke, thanks for the cold engine AF Carb Cheater explaination. All the U-Tube videos, they only show a warmed up engine. Hopefully, soon you'll get re-stocked.

[@ThunderHead289]

Currently in stock again 🙂

[@OUTTAGASGARAGE]

Not only does the Carb Cheater bridge the gap between carburetion and fuel injection (blind analog and full digital datalog), it invites the user to become more familiar with the nuances of their engine's tuning characteristics. The Carb Cheater is a stand-alone unit that does NOT need a phone to do its job after initial setup. The App and phone interface is providing data that is handy for tuning, operation, and satisfying curiosity of how your engine is doing at any moment. "I am getting a miss or sputter going uphill, lets see if I can solve the mystery by datalogging it in the App"

[@chrisevans2645]

I really like the concept. While fuel injection is nice when it works I prefer carburetors for their ability to get you home. This not only retains that ability but improves on it such as when Luke's power valve went out.

[@robertbollenbach8534]

Luke... Amazing job with the carb cheater. You are an amazing guy. You manage a full time job, a marriage , and small farm, a KZbin channel and still was able to develop a mech/ tech product that will help other car enthusiasts. I sincerely hope this product really takes off, I know if I ever pick up a classic to restore the Carb Cheater will be the first mod I will install.

[@ThunderHead289]

Thanks for noticing that - most people don't. Sometime in the near future I need to make some time to have fun I think! 🙂

[@kennedy796]

​@@ThunderHead289seriously dude. Loved your videos of the lawnmower carb btw and thanks for everything man

[@M14Shooter]

You guys made a great product. I hope you can keep up with demand.

[@ThunderHead289]

We underestimated the interest in it for sure. It's very time consuming

[@snocrushr]

🇨🇦 So in a nutshell if you tune your carb ever so slightly rich throughout its operational range the Carb Cheater with it's controlled vacuum leak will bring it back to the target AFR of your choosing. Conversely though if your carb is tuned too lean during some part of it's operation the Carb Cheater won't be able to hit the desired AFR because it doesn't have a provision to add fuel. Have I got this correct. 🇨🇦

[@ThunderHead289]

That is correct - if your leaner than 15, jet richer - a user can see that right in front of their face, and they will definitely know they are lean. That's getting into danger territory at a prolonged cruise and should be actively avoided

[@researchandbuild1751]

@@ThunderHead289 Hmm I'm having a dumb moment. If you tune the carb slightly rich, how could a vacuum *leak* make it leaner? Wouldn't you have to add more air to lean it out? A leak would remove air. I'm getting myself confused. OOOH I think I get it, the air comes INTO the engine through the vacuum leak, "behind" the carb, to lean it out. Ok. I guess what I'm wondering in addition though is will this actually cause "less fuel" to come in through the carb itself? Or is it just adding more air to lean the fuel out? In other words, if you carb is set to rich, it uses more fuel. Do you think it would continue to release that same amount of fuel? Or will the vacuum leak cause "less vacuum" on the carb plates too, thus decreasing the fuel coming in? Interestingly the concept seems like it might work two ways at the same time - it lets more air into the cylinder which can lean it out, AND it in theory could cause less fuel to be pulled through the carb, thus also leaning out. Meaning it's a multivariable problem (one variable causes two other variables to change at the same time) which is complex.

[@16vSciroccoboi]

@@researchandbuild1751 adding a vacuum leak will cause less fuel to be drawn through the carb. The carb meters fuel due to airflow through it, if you flow air around it, it meters less fuel. Routing the air around the carb causes the mixture to lean out because it's adding air, but at the same time for a given rpm/load the carb will supply less fuel since that air isn't flowing through it.

[@robertpao2931]

Ok, I am old enough to remember the Chrysler “Lean burn” system. Is this the modern version?

[@16vSciroccoboi]

@@robertpao2931 if you set it up that way it could be. Except with reliable electronics. Well, sort of, the later lean burn systems had variable afr, the early ones were fixed at a lean AFR and only controlled spark timing

[@2coolwheels139]

Brilliant device! Looking forward to purchasing one once I get my project 67 Cougar running.

[@kevinlenahan4119]

Just ordered mine this morning! Thank you for putting this together!

[@beakerunrefined4230]

How much was it. Site only had an email

[@masterofnonetv8361]

I was stuck between getting a carb or efi for my old crustang and i kept leaning to a carb and now ive seen this im gonna go with this and a carb, and i really hope you have a patent on this!

[@jefftuckercfii]

Something I noticed watching MP on the Carb Cheater gauge screen; when you were accelerating or climbing it seemed that your MP was lower than at idle or when the truck was coasting downhill. Now I've never had a MP gauge available to me in a car, but as a helicopter pilot (piston engine, carbureted, naturally aspirated), I have one and I need to watch it when applying throttle to make sure I don't apply too much power. There's a red mark on the gauge face that is the absolute max MP I'm allowed to pull -- and there is an adjustment table that takes that highest permitted MP and adjusts it for atmospheric pressure and temp -- but it's easy to pull more if you're not careful (there is no system to stop from you from pulling more). But my point is that as I add throttle in a helicopter, MP goes up. Seems to work the opposite for some reason with your truck. As your truck was stopped and idling, you were at 19-21" MP, but when accelerating from a stop and later at steady speed, you were down into the 15-16" range except when shifting, when MP went up until you were back on the throttle, then right back down to about 16". It's the opposite of what I'd expect. Don't know if you have any experience with aircraft engines. Why is this? It makes no sense to me.

[@ThunderHead289]

You are probably reading in absolute pressure while my gauge reads in inches of mercury, that's why my number drops under load.

[@jefftuckercfii]

@@ThunderHead289 - Not sure I follow; the MP gauge in the helicopter reads in inches of mercury. Those are just the pressure units, like mm of mercury, or hectopascals, or millibars. But what does the term "absolute pressure" mean vs. the definition of the pressure your gauge is reading? If this helps, the MP gauge in the helicopter reads ambient atmospheric pressure when the engine is shut off.

[@linuxman0]

I work in IT and find this to be fascinating!! This is REALLY interesting. There must've been a LOT that went into this. Good job!! I don't think (maybe wrong) that there's anything like this out on the market.

[@ThunderHead289]

Involved to say the least - the typical person cant understand what it took to make this.

[@NeoIsrafil]

I absolutely love what youve done here, carbs are very nice for tuners, and now youve got an easy way for people to really get it perfect fast.

[@AntonioClaudioMichael]

Your dad's 68 Ford f100 is stunning love the green

[@henrysmith8012]

Your going to be two very rich young men soon. Good job.

[@stevenbaker8184]

The ignition lock feature could have two very distinct features. One it obviously security. But the second is purely juvenile, if someone asked to borrow your truck, and you really don't want to but kind of give in. Just say yes and turn off the ignition and watch the fun

[@d2dap636]

Good job Luke and Joe, nobody invents anything these days. 😂

[@Mark-Willis]

I'd like to see this unit used on a blow-thru setup, drawing pressurized air from the hat and dumping it through the carb plate. Boost pressure above the carb is usually higher than manifold pressure. The carb could be jetted to be on the rich side under all conditions and the cheater could just bleed extra air to lean it out. Might be a huge advantage for a blow-thru setup. Or a good blow-thru setup that has great WOT afr, the cheater could just trim the fat off of cruise and maybe part throttle.

[@matthewfredrickmfkrz1934]

I'd like to see this tested

[@damianlindsey6177]

​@@matthewfredrickmfkrz1934I emailed him and he said they want to do some testing before selling it for a blow through set up. Honestly impressed the emailed me back so quick with it being a holiday and all that

[@markmatt9174]

One thing is it adjusts by a controlled vacuum leak, similar to old 80s tech GM had. So for it to work it would be trying to "add air" to a vacuum, if it's a blow thru then manifold would be pressurized and then it "might" at best be a automatic low volume blowout valve. I would guess that it has checkvalve built in so it only leaks air INTO the manifold and not let pressure bleed out of it.

[@Mark-Willis]

@@markmatt9174 generally the hat sees higher pressure than the manifold, so the manifold would be acting as a "vacuum" compared to hat pressure. So hat pressure would easily overcome manifold pressure and be adding clean air to lean out the mix. Same exact function as it was designed for, but instead of drawing atmospheric air, it would be drawing boosted air from the hat. Might not work well at all, but I hope they test it, as it sounds promising. Science is cool

[@matthewfredrickmfkrz1934]

@@Mark-Willis what if you plumbed the "vacuum" to boost

[@WrenchHead]

I have, but no longer drive a '79 F150 302 .040 over, 4spd OD. Back when I did run it daily, I had a 600 Holley...dialed in too. I would think carb cheater would be perfect for when humidity makes a drastic change or temperature and you haven't changed jets. One change that really woke that truck up was a ring and pinion change. Miss the old carburetor days 😢

[@AudiophileStooge]

congratulations on your launch. This is on my short list for my 1957 Ford Fairlane

[@rodparnell1953]

This is brilliant. Fantastic innovation. Quick question: So it's fine for the wide band sensor to only read from 1 bank of the V8?

[@zachariahferguson8871]

I order mine after your last video. Can't wait to try it out.

[@ThunderHead289]

Thank you for supporting the small time nobody business groups 🙂

[@D2O2]

Would love to put one on my boat, just need to figure out how to get a wide-band in the water cooled exhaust.

[@JamesDuncil-nb7vt]

I'm glad u are doing videos again. You're one of my favorite channels.

[@Red9GearHeads]

Looks like a super reasonable price. I’ll be picking one up. Still a few months of stuff to do before the trucks back on the road.

[@TempleofAmon666]

Been watching you since the f250 revival with Kevin brown. Keep up the great work and thanks for not leaving us when you started your career.

[@ThunderHead289]

I'm older than folks might think, I was on the career path even back in those days 🙂 I've been a full time engineer and youtubed together since 2017. I'm tired lol

[@TempleofAmon666]

@@ThunderHead289 well I remember a time, maybe it was when you got married, that you planned to leave KZbin behind. I apologize if I am remembering that wrong. Well I am 45 and wondering where it all went, you will get there too, lol.

[@FeralPreacher]

Would love to see you take a vehicle to the track and record times with and without carb cheater. Will there be a noticeable performance difference? Great invention and I wish you great success.

[@rapidride2]

Or a dragy.

[@kotyd123]

I cant wait to order here in Canada! hope you sort out the international shipping bud!

[@ThunderHead289]

We're getting there 🙂👍

[@LeftHandMotors]

Man, electric carbs were such a headache in their day. I don't know anyone who speaks highly of them. To think that revisiting that nightmare with a modern digital controller is viable and kinda simple is sweet man. Love it

[@LeftHandMotors]

When I was dragging over the Giant sun engine analyzer to a 1980 Buick trying to get it through deq I never thought that anything good could be inspired by that motor.

[@16vSciroccoboi]

The carbs weren't the issue, craptacular engine control systems were.

[@LeftHandMotors]

You are right, the only ones that the carb itself was likely to be the problem were the jeep wagoneers with that plastic bodied or maybe it was a bakelite lower carb housing on the big 4 barrels

[@16vSciroccoboi]

@@LeftHandMotors THERMOQUAD!!!! Those carbs were massive, too bad they were so problematic. Lol

[@montycrain5783]

A few questions,(1) will it work on higher horsepower motors say 650-750 hp and can it be made to work with dual carbs on a tunnel ram??

[@scooter1391]

just watched your answering to The Junkyard Necromancer i agree you. I been turning wrenches sence late 70's and uncle tony and you both did the driving deminstration on both port and manifold. A lot of people say it idles better on manifold well somethings not set right then in my experience it can be both way's but like you explaned you leave hp on the table

[@caly5328]

Finally, a product made by real guys in the real world for guys and gsls in the real world. I bought one for my sbc 383ci.

[@Cad-cw2cs]

Love to see it on something really early like a model t or teens/twenties Buick, be curious to see how it goes on some of the really old stuff where the fuel is so different today to when it was made

[@PaulThomas-qo9vy]

That's a great suggestion that you can do to show us! All you need is a Carb Cheater (CC) kit & baseplate chosen for a more modern carbureted car you own. Then for that old model T or Buic make a custom insulated baseplate to fit the old car manifold & carburetor, with fittings just like on the CC kit you bought. Install & tune... then away you go! Anything that has a carburetor & ran on gasoline should run better with a CC kit. Heck even a riding mower will run better with a CC kit. Be the first person to do it & let us know your results! Good luck!

[@meek01__53]

Hi Luke love your product have a question, will it help fuel atomization in hot climates? I live in New Mexico where it can easily be 100° plus every day and hope this can help. Thank you for your time keep up the great videos!

[@jasonnielsen2125]

An electronically controlled air - leak (or vacuum leak) to atmosphere using an auxiliary air valve motor, a vacuum supply mounted after the carb and a control app, very clever. A tool to clean up emissions and restore power. You could use this along with a cat converter to keep the EPA happy, if needed. You may have just extended the use of carburettors for many years to come while being able to pass emissions testing. It would be interesting to see a back to back test on an original factory carbureted smog engine of the 70’s with this system added and the original emissions systems connected, then disconnected. You maybe able to just run your system and get rid of the original factory power robbing emission systems and still pass the tests.

[@jasonnielsen2125]

How’s the Sky Ram progressing? Awesome experiment.

[@ls_812]

But our unelected officials of the EPA want to kill anything with a spark plug. They don't want us changing anything from how it came from the manufacturer even though some of us can make it better than it came out, especially 20+ year old vehicles. Somehow we need to remind our govt that they work for us...

[@jasonnielsen2125]

@@ls_812 Yes, this is very true but the only way we can take our power back is to not comply. Mass non - compliance is the key, we can’t do anything as individuals. All of us worldwide need to stand up for ourselves and just say no to their NWO BS plans.

[@andyreid7274]

​@@ls_8122A is the only option at this point I fear

[@stuckinmygarage6220]

I'm having so much fun with this! Thank you, Luke and Joe! Awesome! 🤟

[@ercost60]

Great video! I may need two for my Corvair, which is basically two independent 3-cylinder engines. Dua! Exhaust, 4 carbs!

[@zackshelman454]

Fantastic idea! I hope you can keep up with supply and demand.

[@cm-fm2tx]

Would it be possible to add the CC valve output to the data stream? This way you could see how much the CC is compensating throughout the data log. It would show you when/if the CC maxes out during the run. Also, are these devices remotely upgradeable if you release new software/firmware in the future?

[@jeffparris8387]

Now I need a project to use this one! Great job Luke.

[@BUILTFORDTOUGH79]

Maybe I should have read a little more on your store page, but is there an app for iOS or just android? I’m actually very interested. Imagine showing this to an old timer at a car show. I’m still amazed at it. Pretty darn cool!

[@larrylong6268]

Your example with the lawnmower carb suggested a secondary valved slipstream that can provide great MPG. When torque and power are needed switch to the main carb. This could actually be combined in a single unit with automatic or manual switching.

[@jaredlancaster4137]

Pretty sure that's literally what the primaries and secondaries on a four barrel are

[@larrylong6268]

@@jaredlancaster4137 Not the same when they share the same throttling,fuel air aspiration source, not an independent slipstream.

[@16vSciroccoboi]

@@larrylong6268 what do you mean, the secondaries don't do anything until they are needed. If tuned properly.

[@larrylong6268]

@@16vSciroccoboi You misunderstood my comment, it is too complicated to properly explain in this forum. I would need to write a white-paper to better explain my proposal.

[@PaulThomas-qo9vy]

Well what about a little 2 barrel Holley/Weber like on Ford Pintos or a real Weber 32/36 DGV thatopens a primary throttle barrel a lot before opening the secondary barrel for all the power. If a tiny 1 barrel operated independently most of the time, the big power large carb would just sit there unused, with gasoline in the bowl absorbing heat, boiling out, vapor locking, etc. That's the whole point of having multiple barrels feeding from a common fuel bowl, so that fresh, cool fuel is continually moved thru the bowl to reduce the chances of fuel percolation/vapor lock & the resulting poor engine performance. What you suggest can be accomplished with a carburetor that has independent primary & secondary barrels/venturis, especially if you switch to a smaller cfm carb of similar configuration. An example: Switch from a 600 cfm Holley 4 barrel with vacuum secondaries to a 390 cfm 4 barrel with vac. secondaries. Add the Carb Cheater, tune for Stoichiometric (14.6 to 1 AFR) to slichtly rich (like 14.2 to 1 AFR) THEN activate the Auto Tune feature of Carb Cheater & gradually selecting a leaner AFR (like 14.8 & test drive,) then leaner & leaner AFR's then test drive until driveability starts to suffer. Then richen AFR slightly for engine safety. The CC tunes for idle & light cruise throttle to increase fuel economy. The CC leaves the medium & full throttle AFR's alone so high power AFR's can remain richer for safe engine performance! You get to have your cake and eat it too ! No complex multi carb setup needed! Just simplicity, Carb Cheater, a little initial carb tuning, ignition tuning (see Uncle Lukes ign. tuning videos) & CC will do the rest! Drive normal & enjoy better carb performance & fuel economy!

[@petecunnien5368]

This is so cool Luke, I will be getting this kit once I get my vehicle.

[@servicetrucker5564]

I commented on the last video and this thing sounds better and better. I’m thinking about one for my tow truck because it burns tons of gas. Not just going down the road but sitting still running the bed idled up to 1200. That’s why I charge 2 dollars a mile and 2 dollars a minute to run the pto. Plugs are light so I reckon it’s tuned pretty close already but it needs some help

[@peterbenson3776]

I had a 2004 Ranger with the 4.0 automatic. Bought it used108K it seems pretty good then the muffler went bad so I got a SS magnaflow and damn! She was breathing nice!

[@AntonioClaudioMichael]

Ignition Lock is Sweet

[@briancusano327]

This is so cool! Can you please go over the 2 step and rev limiter feature and any other functions it can do in a video? I saw these on your screen in another video. Thank you, I will be ordering one!

[@ThunderHead289]

I sure can soon - seems like a great video for our twin carb high rise stuff

[@briancusano327]

If the app is not available for iOS do you think I could get a cheap tablet from Amazon to run your app?

[@pepperthekobold]

Might have to look at one of these when I put my Suzuki Samurai back together, if the engine swap doesn't work out.

[@UnconventionalMetal]

This is genius. Congrats on developing this.

[@Big88Country]

It's a great product Luke! Any ideas when they will be available and are you guys working on a app for Iphone? Thanks Brother!!

[@CAROLDDISCOVER-2025]

When you had your Maverick out there on the race track somebody else made a segment of you for their channel. He was restrained in his commentary. She had no idea why you had done this with your Maverick you know about a 10ft tall pipe between the carb and the intake. There's several comments about moonshiners and so forth. There were just as many people saying hey this guy's from Iowa look up his channel. Congratulations you're riding almost 300,000 subscribers. Nice item put together the carb cheater. I know my dad but have gotten a blast out of this. Back in the day on his 235 straits Chevy 6 he had water mist applicator hook into his carburetor. Hair done at the things. Please play 24 inch spacers in between the carburetor and intake manifold. Just depending on the engine. thanks for bringing those thoughts back.

[@ThunderHead289]

Hey hey, do you by chance have a link to the video you are referencing

[@CAROLDDISCOVER-2025]

@@ThunderHead289 and give me maybe a day or so and I'll look it up and get you that link 🔗 I don't have it right in front of me I'll get it for you. I enjoy your channel. You're not afraid to experiment with some wild ideas 💡. There's a guy named Tesla that did that to

[@CAROLDDISCOVER-2025]

@@ThunderHead289 kzbin.infoHQPPBBvNXLc?feature=share3 I thought I left on your tractor video in reply to your initial statement. But in case I didn't here is the video clip that some other guy did of your car at the track during power tour.

[@ID10TGARAGE]

I need to check my clearance on my shaker setup to see if this would work on my 69 351W. Be cool to run it on my mild built setup but with a high intake manifold, i already had to goto the Big Block Base and not sure i can spare that spacer room

[@royandrade2929]

Im in high altitude Colorado Springs. Was thinking going EFI. Wondering if this will work

[@jordantomblin2302]

I converted an ‘88 Ram from TBI to a carb and while it runs pretty dang good, I’d like to get one of these with the use of an old phone and see if it’ll run any better. I think it would make a difference in performance.

[@bairfamilyfarm1336]

I just checked out the store, this sure beats the pants off the price of a Holley efi kit for something we use once a year. Harvest in Indiana comes with huge temp swings, I hope this kit will solve the constant mixture adjustments during that time when I get one later this year!

[@brandonboulton2776]

Could this be applied to my 1988 Suzuki Carry db71t F5A KEI truck? 543cc 3 cylinder SOHC. If this can be applied to kei engines, you'll have yourself a big market.

[@IamMe10-4]

I ordered one for my three cylinder. Just made custom vacuum ports on intake.

[@mattack6779]

2 questions. does your carb need to be set up rich for auto tune to effectively? 2 Can I use with my Blow thru carb & forced induction?

[@hunterschrempf7062]

Just wondering, does an electric choke cause issues with the carb cheater? I’d love a video explaining how exactly it works, thanks!

[@ThunderHead289]

Works fine with an electric choke - lengthy explanation behind it, but it does well

[@jvin248]

How soon before there is a model to put on vintage tractors either long term install or a test kit to tune the engine? Like Ferguson 35, Ford N-series, Allis Chalmers WD, Farmall M/H, JD, etc of the 50s-60s vintages.

[@TheSinkingGarage]

Just throwing this out there. I know very little about fuel vapor engines or this CC device, but could this be used on a vapor engine to solve whatever the fuel flow issue is on those engines? I forget what the issue is exactly. Something about no control over fuel delivery?..

[@ThunderHead289]

Oh, I've been planning on making a system for fun to see what happens lol I'll probably just blow up 😅

[@TheSinkingGarage]

​@@ThunderHead289always good for likes and subs 😂

[@markcole6475]

Interesting little tool! I’m a pretty good carb tuner but, those damp and cool days or baro changes make it difficult to keep a carb tuned per day! Some carbs aren’t as sensitive while others are very finicky! I may check into this set up for my big block truck!

[@billytarpon9871]

i really think this is a great thing you've made, my problem is i an't got no smart phone and an't getten one i need a hard wire to a big screen (radio/gps) hope that will be in your plans,

[@ArtCFartC]

I'd love to have a dual carb, dual port, air-cooled VW version, but I don't have room for spacers under the carbs of my Squareback.

[@richardguggemos6336]

😂 The tagline on your splash screen is awesome 😂

[@ThunderHead289]

Seems pretty accurate I think 😄

[@greenmirror5555]

Have you done a spark plug visual check using this? I would think the ability to have AFR not going fat all the time that black rich spark plugs would stay white.

[@ThunderHead289]

I have 40,000 miles on my own car with it - plugs look like what the wideband says they are. Healthy light tan. A wideband is actually more accurate than reading plugs since plugs are capturing all circuits of the carb averaged together.

[@rlscustoms]

Pretty cool product there, so my take on it is this… 1. First of all your carb has to be in good working order to begin with, it’s not going to fix a gummed up leaky old carburetor. 2. It essentially performs three functions, it measures AFR’s, measures manifold vacuum and controls idle. 3. It measures AFR’s to give you the data you need to properly tune a carb under all conditions but it won’t tune the carb for you, you still need to jet the carb yourself for optimum performance. 4. It introduces a controlled vacuum leak via the idle solenoid under idle and low load conditions to fine tune idle and AFR’s, it doesn’t add fuel it adds air. 5. It measures manifold absolute pressure via the map sensor to allow the computer to see load conditions. 6. The autotune feature is only as effective as the jetting in the carb allows, if under full load and is running lean the autotune feature isn’t going to add the fuel the engine wants, only jetting will do that.

[@ThunderHead289]

Carb cheater uses rpm, afr, and load to decide what it's doing indeed. It's a tuning tool at its core since most folks carbs are tuned like hot garbage - usually pretty rich. No more guess work, someone can get their ride decent and let cc handle the anomalies (which most people don't realize how prevalent anomalies are - if you run a wideband, you do). It's also a gps speedo, Rev limiter, full graphing datalogger, ignition lock, and has a programmable rpm window switch relay on board.

[@johnlang8]

I would love to have something like this for a dual quad setup

[@thomasknobbe4472]

I like a KZbinr who makes his own videos with dirty hands. It makes me more likely to trust that he has actually done his own work.

[@ThunderHead289]

I wouldn't call me a youtuber, im a mechanic turned engineer by day and a hot rodder before a youtuber. KZbin is too fake and Hollywood for me

[@thomasknobbe4472]

@@ThunderHead289 fair enough-I am an Old (ISU and U of I in the early 70's), not current on these terms. I understand you are not doing this for the clicks, very much enjoying how well you show and tell-you clearly and carefully demonstrate as you explain in terms people can understand. Good luck on the Carb Cheater, got a couple of small block Chevys in the family that might like it.

[@mikeburnett7028]

So, do your instructions include tips on how to tune? Like jet sizing, accelerator pump cam changes, metering rod changes and things like that? Or is it all guessing on the part of the owner

[@ThunderHead289]

I'm getting there - just one guy with a day job. Will have that done in the next week or so

[@kotyd123]

Luke used a lawn mower carb with carb cheater and had awesome fuel mileage. want to use it so bad.

[@brianthompson7987]

Definitely going to buy one, great way to make any card work to its maximum potential.

[@brandtmagolon454]

This would be neat to try on my grandfathers corvair he has a 1963 but it's turbo charged. It seems to stutter when I floor it but if I ease into the throttle it works okay

[@KC9UDX]

This is pure awesome. I just wish you'd stop calling it a cheater. It's better than anything the auto manufacturers produced.

[@firepinto]

Such an impressive device, I will be getting one as soon as i squeeze the V8 in the Pinto!

[@lordsauto]

Do u have to adjust carb. How does it self tune without turn mixture screws

[@ThunderHead289]

Check my previous install video and you can see how I'm doing it 🙂 Simple, robust, universal

[@schwuzi]

It's a controlled vacuum leak. So if you're running too rich the carb cheater sees that and gives the engine more air to lean it out. If you're running too lean all the time the carb cheater can't do anything as it can't give it more fuel like with EFI. But you'll be able to see that you're way off in your tuning and modify your carb accordingly with different jets. You'll be able to tell immediately if your fix worked or if you need to change something again. Once your carb is in a nice ballpark you can turn the autotune feature and let the carb cheater handle the rest. It eliminates all the guessing with setting up your carb if you're not experienced. You might not be able to tell what's wrong when looking at the color of your sparkplugs or listening to the engine.

[@gilbertl9513]

Got my pre-order in, thanks Luke 👍