DAY 2 TESTING THE CORVETTE! GETTING FASTER BUT NOW WE HAVE PROBLEMS! 

Im old and retired and never saw anyone explain carbs the way you have.. wish you were around 44 years ago I always played with my carb s and had nobody explain it the way you did. Great job chief

The sheer knowledge and the ability to relay this stuff and do it comedically is a gift. I comment on every single video. And I'm so glad yall got away from the show. This is much better content than we have seen on discovery in years. Thank you guys for doing everything you do and including us on the ride ❤️

Carburetors, converters, thrust bearings and chassis/suspension tuning tech in one video! Y'all are killing it right now! This has quickly become one of my favorite channels. Keep it coming!

This is most definitely the best explanation of how a Carburetor works and how it reacts on a car. Love this channel. This is your path brother. Lead and loyal fans will follow.

I’m a Holley tech and you did a GREAT job at explaining how carbs work!!!! Love this channel man keep it up! You and Jackie are doing an awesome job! Also Holley XP carb has an idle bypass built in the center of the carb for exactly what you were talking about.

Big Chief, I love the fact that you explain the small details about racing and car setup. People don't do that no more and that is what the newer racers need.

My uncle was a big name engine builder and tuner in our area from the 70s through the 2000s. He built many winning setups in heads up, index, and bracket racing. When turbos, superchargers, and fuel injection started getting big he always said a good old carburetor with nitrous setup would last forever. He's passed away now and everytime I see someone explaining things a carburetor is good for or can do that fuel injection can't it makes me smile. Sure, big turbos with a big motor and EFI are what everyone wants, but a damn good carburetor and nitrous setup can still compete. He was a carburetor and engine guru, something you don't see near as much of. Love the content and tech talk!!

Thanks for sharing your knowledge and insights. My brother was a mechanic, drag racer, and life long car nut. He had a similar way of explaining how things work that made intuitive sense to a non-technical person like me. Unfortunately, he passed away last August, so I can’t talk to him about this kind of stuff anymore. I really appreciate you making the effort to produce this kind of content. For some of us, it’s all we have left. Keep up the good work!

Taking physical notes is still the best way to do this,and you're very smart Justin 👌

Thank you for teaching us young guns that don't live in a race state. Learning all this shit as a tech means alot man. I hope to one day take my day job and make it something bigger. 🔥💯

Hmmm 🤔🤔🤔 As for the trust bearing issue. Im DEFINITELY on the same page with the possibility of a ground issue. Ive seen ground issues in semi trucks (Diesel Engines) do some crazy things that you wouldn't ever think could happen. However I also go back to where you pointed out previously that the right side ladder bar mount looks as if its been repaired. Instantly with a Corvette (very low ground clearance) I think someone may have run it up over a curb or into a ditch and snagged a rock or a culvert and something is bent from mild to significantly. And that can throw the geometry off just enough over time (you said it looked like a previous long term issue with the seal) to eat away at the thrust bearing. Yet not enough to Instantly gernade the bottom end of this engine. Obviously there's a few things that could be causing this. Sir... You have me hooked to this series. And your carb knowledge is STRONG. You and Mr Bill Sr. @OldMansGarage could do a carb build off series.And teach us all a thing or 5. Btw, I absolutely RESPECT the hell out of you for the "Have a Fire Extinguisher with you" And a way to get to the car quickly (Your dirt bike) if needed to be with said Extinguisher. Safety is something a lot of people forget about as this testing takes place. Sir, You have gained a lifetime of my RESPECT for this safety common sense. 🙏🙏🙏. It shows me you are a true professional, And a caring person to allow someone you love to test a dangerous,highly modified, unproven vehicle.

WOW...just looked at the numbers of subscribers over 313 thousand Big Chief and miss Jackie y'all are killing it. Y'all have less time on RU-vid and have more subscribers than any other street outlaw all I can say is wow that is awesome...This video you just posted is awesome I didn't know to much about carburetors but now I do thanks to Big Chief. I'm learning so much for y'all videos like this are so helpful for people that's trying to do more with what they have....keep up the good work and keep videos like this coming you y'all are doing a great job thanks Big Chief and miss Jackie.

Outstanding Chief & Jackie. You 2 make a heck of a Team. I sure can tell the difference in your attitude here lately since you left the show. You are definitely much happier person now for sure.

Worked in a trans shop and it’s very possible! (common on Ford 6.0 diesels with the 5r110 trans)and it usually wipes the pump bushing in the trans and converter hub into the pump(hint check that too!) we usually ground the starter bolt, the block, the trans, frame, at different points to the bare metal on the frame and “ls” stuff on the heads like you said. Keep the content rolling.

Chief you really did a fantastic job explaining the carburetor. thank you for taking the time to explain all of the carb. and I agree with you about putting the grounds on the engine and transmission and running them to the chassis. Keep up the great work and God Bless you guys and your families. Name the car Big Red, because that vette really stands out plus it sounds big AF ,looks Fantastic to. 🔥💪💯👍👍🙏🙏😎

I nearly fell off my bed when you started with the southern lawyer and BRISKLY 😆🤣😂. Holy shit you are hilarious. It’s nice watching y’all become happier and happier doing what y’all are doing (HAVING FUN) now!!! Keep it up chief and Jackie!!! 107😆🤣😂. IMHO knowing carburetors is a must before having fuel injection for truly understanding what an engine wants and needs by sound, feel and most of all READING THE PLUGS!!! It’s like a carburetor and knowing how to really tune one puts you on a different level understanding what your individual engine needs. Great vidya eh!!

Oh, JEEZEEE Justin looks like the professor off of Gilligan's Island when he is describing the carburetor stuff! He is just in his zone. I could watch for hours a day, just to see some of the things that he has to say, AND teach! He is very relatable and doesn't try to belittle anyone, that is GREAT! Thanks AGAIN, for your content and what y'all share with us! Have a great weekend Justin and Jackie!!!

Chief an Jackie are the shit !!!! Thanks 4 all the content y’all put out

As a female, I know very little about working on a car motor. I understand the jest of it but I can't work on them. I love listening to you and Jackie talk about y'alls cars. Chief, you have such great knowledge about working on them and you are willing to separate your knowledge to anyone. Even to someone like me. Keep up the great work.

My comment doesn’t have anything to do with this particular video but I have learned so much from y’all’s videos. I own and race a dragboat and was having trouble with timing moving around every time it went down the track. The video that Justin did on the distributor on the crow and finding that the slack on the gear drive was causing his issue, is exactly what was causing my issue. I am very grateful to have come across that video and I will never miss a chance to watch more of y’all’s videos to learn more. Keep up the great work.

Bad grounds can cause thrust bearing failure. Because everytime you start the car. The starter is going to hunt for a ground, and find the easiest path to travel. Since the starters bolted to the block. Every time the bendix engages the flexplate. That's bolted to the back of the crack. Ground will always travel the path of least resistance, and that's through the crank, through the thrust bearing, flexplate and finally the starter. Evey time the car gets fired off.

I was getting ready to call it a night and low and behold, I get video number 2 ! Thanks Chief and Jackie!

I had an BBC I had bought years ago that was already built by a machine shop (who will remain unnamed) but they never checked the crank end play and after running it down the track a few times it developed an issue like you are explaining and ended up having the entire engine torn down and rebuilt by a much more reliable engine builder. If the 1st engine builder would have just checked the crank end play they would have realized it was a problem. Couple grand down the drain. Good luck figuring it out guys....

Love the time you spend explaining how a carburetor works. Even my wife gets it a little so now I get to watch more car shows hope your not giving up any racing secrets

Well Professor (Big Chief), you’ve finally done it, you’ve got all of your students craving more…thanks J & J for another informative video…learning is a beautiful thing. Grounding is a must but I think it’s the converter.

Man Jackie is a beast in the seat... Helluva burnout ... I bet Justin loves it that he can trust your feedback as the driver.. I promise you 90% of girls I've been with or just a vast majority as a whole would just look at you and be like huh.. ha..

I have to say, you Sir look super healthy and back to ur roots. Thanks for keeping us as a part of your stuff! I enjoy it!

CHIEF YOU ARE THE MAN...STILL NOT WATCHING DISCOVERY WITHOUT YOU ON IT AND IM SURE IM NOT THE ONLY ONE...JACKIE KEEP UP THE GOOD WORK

I had a ground issue that was passing the ground circuit through the crankshaft and kept causing very odd wear patterns on the main bearings and one night I bridged alternator to core support with a long screwdriver by accident and noticed a tiny spark. Chased that clue to a lack of ground that I hadn't thought of before. I added several ground wires to the system and it never had the problem again. Carried the same oil pressure for a year between teardown after that

Jackie out doing what she does best! The in depth breakdowns are top notch! I know lack of proper grounding can and has caused all kinds of issues in various applications. That being said, the convertor could very well be the culprit, especially since you've already mentioned possibly replacing it. Your gut is never wrong.. All that being said, I love the progression of the Red Rocket!! She's gonna be nasty when fully dialed in🏎💨

Yass. Thank you for this! Made my midsummer weekend and then some. :) Now, to the problem: Chassis flex. Even if the car sits fully balanced, when the old ladder bar chassis gets loaded, it twists and unloads the right tire. It can be adjusted to a point, but it will only get worse due to fatique of the metal. Only plating the motor won't fix it, it just moves more torque to the chassis and crooks it further. If there is no ground leads, the spark jumps inside the engine where is enough gap to create spark. But, the thrust bearing issue is not completely spark related, the flexing chassis squeezes the running gear together, and thrust bearings are there to even the load. A full funny car cage/chassis is not just a safety thing. it is also a tuning thing, to make the car more stable and responsive to shock adjustments. You can also use square tubing for main rails to keep it "stock", if that is still a thing.

That's probably one of the most informational videos I've ever seen. Y'all killing this RU-vid stuff.

You the man 💪...I really enjoy this type of content, learnin me some good stuff. I am so happy yall are doing the yourtube and patreon thing. I literally dropped my reg cable, everything I watch is on youtube for the most part.

I would be very interested to see how the damage looks to the thrust bearing per your thoughts on the lack of grounding. I have never heard of it causing such an issue personally, but electricity even in lower amperages can be very destructive over time. I think you will see pitting in that bearing surface caused by the arcing, might even see some scoring with rolled edges. This mystery has me intrigued and look forward to see what you find.

I’m old school and grew up on carbs and I love to see someone giving a proper explanation of the working circuits

Thank you for stopping and taking time to explain carburetors. It will definitely help me tune my hot rod. Not having grounds on a all fiberglass car is a big no no. Great video. Keep it up. Jackie is a bad ass driver. Knows what she is talking about!

I really love your videos very helpful and informative. Love to see the reason the crank walked. Be safe!!!!

Why in the hell is Chief not teaching a class somewhere?! He is the best at explaining complex issues in understandable terms!

Chief, there's 2 things I would absolutely love for you to go over, 1 is the ladder bar setup/settings and your process as you start working on that. Fill us in on what you have already done, and going forward and 2, water grains vs DA. I've never done anything with water grains, or know how to apply that, to what to change or expect vs DA. Amazing, and thank you for sharing! And I always start with checking the pressure in the converter circuit first way before blaming a converter.

From a current technical training instructor, Big Chief you should be teaching automotive technical courses at the local tech school. Carburetor class is in session with Professor Shearer, nicely articulated sir!

Interesting theory on the ground issue. Its possible. Old model Chevys had grounds off valve covers, heads,block and they weren't fiberglass. Clutch cars were rough on thrust bearings. I will stay tuned. I would like to be a fly on the wall and hear you and the Old man from SRC talk carbs. Came through OKC today to Chickasha it is hot. Down to Grapevine TX then to Ga. Stay cool, enjoyed both videos😁

Aloha, Awesomeness and it's only the beginning. I really appreciate that Chief and you are giving us all the details on the vetted. Have a great time together and stay safe 🙏

@ Justin Shearer , you should do a video masterclass series on race cars and all the relevant components of how it all works together etc. Your knowledge and the way you explain it all makes it enjoyable to watch for everyone from the novice to the pros! Listening to your explanations in these tech videos shows why you were ALWAYS the MOST prepared for every single race on your old show. As much as I love watching you and Jackie race and make hits, hearing you explain the what, where, and how of every pass makes all of us viewers that much more invested in your process and your program. Best damn race car videos on the inner webs imo . Keep it up!

I love carbs!! People say it's a dying art to work on them. I continually learn everyday about carburetors!!

I hope you do make a detailed carb video ( I might be in the minority, LOL ) , and it is great to see the steady improvements in the car. Great video

Love these kind of videos. I've, believe it or not, even though how dumb I am, have learned a lot. Thanks so much for sharing. Take care, be safe, and have fun regardless.

I am nowhere near smart enough on this subject to hazard a guess. I just wanted to say I enjoy these talks with Professor Chief. I always learn something interesting.

Chief, thank you for this video. I knew the gist of carbs and how they function, but I won't pretend that I could fix, work or tune them to save my life. I learned more in this video, the greatest description of why and how, no cap, of carbs than every video I've ever watched. You're a phenomenal teacher!! That statement doesn't even justify how good you are at explaining sh!t. I'm pretty sure if you started a teaching channel explaining different parts, their use, what works, what doesn't, etc it would probably be the #1 learning channel for car guys. Edit (watched the full video): WE NEED YOU TO START A TEACHING CHANNEL!!!

The heat has chief all over the place. You sir are a awesome individual. Thanks for the videos Jackie N chief. 🤜

loving the content! learning a lot of info! never herd of lack of ground and bearing issue but very interested in answer! jacki be driven given that good data and feed back!🤔Keep the videos coming and good luck with the testing! Waiting on TUE.

Maybe be worth putting more pressure on right rear. Launch appeared prone right. Grounds, don't think so, main thrust can be checked without disassembly.

As a non “gear head”, I really appreciate how you explain things. I find that the people who avoid using a bunch of jargon and buzz words are the ones who truly know their sh!t.👍

Love these informative videos!!! Can’t wait to see you back as Race Master.

Great explanation of how a Carby works Chief. That's exactly what I grew up playin with. 💯 Aussie Fan 🤟🇦🇺🤣

I have gone back and watched all you too vids and I really noticed how much happier you are now no matter what happened for you to leave the show but us as fans are getting a better view of who you guys are. Much love from you friend in the west.

A shop told me my crank was walking cuz he found scratches and he shimmed it that took care of that problem and on another car I had electrical issues and we did have more ground straps and everything electrical on the car definitely behaved better I've never had a crank trigger good shows keep them coming

These vlogs are great. Probably the most informative out there. Getting into all the details is great. After tuning both carb and fuel injection, I'll still go to FI all day. A carb is a controlled toilet flush. The toilet uses vacuum to work properly also. Tourqe converter is the issue in my opinion. Probably time for a new one.

"I had to stop and get a glass of sweet tea" ! 😆 🤣

MAN, I LIKE HOW YOU EXPLAIN WHAT YOU ARE DOING FOR A FAN LIKE ME WHO APPRECIATES WHAT IT TAKES FOR YOU ALL TO GET WHERE YOURE AT WITH THESE CARS!

When my uncle used to run a vett, we ran a ground strap from head to head and a heavy ground strap from the bell housing to the chassis.

Great video as usual! I'm learning a whole lot & absolutely love it! You really make it a lot easier to understand the way you explain everything! Thanks to both of you for all the hard work & bringing us along!

I’m interested as hell to hear about how a ground issue can cause problems with the thrust bearing. It seems far fetched but I’m sure you a basis for your theory. Thanks for putting this kind of content out.

You brought back memories of my time in the late 60,s early 70,s. 331 small block with dual 660,s on a tunnel Ram manifold. Thank you Those,s were the days 👍

Fixed a million problems with adding grounds, people have laughed and said bs, threw a ground in and boom, fixed. May not be your issue, but never had an issue introduced by adding a solid ground. You’re an AC guy from what I’ve heard, it’s amazing how many issues I’ve fixed or one can fix. Good luck 🍀 from an Irish fan.

Man I miss going to the street races when I was younger and building motors an watching them run I would definitely get the grounding issue fixed for sure love the content would be awesome to hang out with ya doing this information is something I love when it comes to this stuff thank you both

Great video awesome content, please keep em coming. Everyone keep yourselves and love ones safe and healthy and remember to SMILE.

Killer video, they just keep getting better. I had a bone stock c4 corvette at the dealer back in the day that killed all the bearings and the car was almost new, when I replaced the engine under warranty the ground wire wasn't connected to the block, it was laying against it and no bolt there. Most likely during being assembled it was missed. That was the theory in the shop that the engine was trying to ground itself through the engine and that the bearings where the fuse since their so much thinner compared to anything else. Obviously we couldn't verify that but it seemed plausible. I also knocked the thrust out of my turbo LS mustang after 3 passes from a converter that was ballooning out because it was not correct for my combo. Swapped out the crank and bearings, put a Ptc turbo ls specific converter in it and 100s of passes later no problems at all. I love that you put theories out there and get us thinking because it's not always black and white. 💪

Man you went DEEP….(that’s what she said) Into carbs! Made my nerd brain happy. I have an actual 383. And I know all the pains of launching a sbc and getting the bog after my big tires hook. It has taken years for me to get things better. Yet I still don’t have it perfect. I have learned that q16 would fill the gap between my tune deficiencies but it created a problem when I introduce more than 300 hp of nitrous.

First time caller long time listener😂 it’s Tuesday

Damn two videos this close to each other .. I dunno what's going on lol .. but I like it, the more videos the better.. You're the one channel that I look forward to the next video from most because we never know when it's going to come out next ..

I love this type of context . Everyone can understand and use this . Thumbs Up . No BS.

I love that Vette! Also, thank you for giving carburetors the props they deserve. I recently ran into the big cam vs holley transfer slot problem. The idle mixture screws did nothing!!! Instead of drilling the plates, I tried the set screw in the bottom of the base plate that allowed me to crack the secondary blades. I then was able to close up the primary blades and get my idle mixture screws to do something.

Happy Friday chief an Jackie!!’ Thank you guys for the killer content!!! So happy you doing what makes you happy, plus side it makes all your followers happy!

Be interesting to see if there is any evidence of arcing. But, you might not see that unless you pull the main caps off. Electricity will find a path. And believe me, it can happen through the rotating assembly, through the flex plate, through the transmission, ...

cant say i've ever seen it on an auto box, but i remember working on a BMW that had a rear impact that reduced the amount of play on the drive shaft, so when it was going over bumps, it hammered through the gear box into the crank, caused a load of damage all through the driveline

Jackies choice of equipment, lighting and editing has made this channel pop. Great team.

Gotta admit, in my limited knowledge, i dont see how a ground issue could be the cause of a thrust issue. Most of the thrust issues ive seen boiled down to wear, incorrect machine shop work, or installing incorrect parts initially.

This is why your BIG CHEIF!!!! I’m Late 30s and watched my father well I helped him build many vehicles, his 68 Chevelle was the most interesting. That car went from sitting on the side of the house to building a 60x40 garage with lift and building a full blown race car. Backhalf with plumbob 4 link tubbed narrowed rear wiring and rollcage. RIP Dad Watching your content is amazing and your smart as hell. The Chevelle ran 10:50! We also had 2 dragsters one which ran on Alcohol, learning carburetors is a lost art. CHEIF & JACKIE I would give anything to come hang out and be up close in personal to go racing or just working in the garage!!!! Keep making content and kicking ass in the streets!!!!

.88 jets in the primary section of the carb… Holy Smokers, (actual smoke). I might have run .80 secondary, maxed. This engine is wild. Thanks for the details, always a blast going through this stuff.

Even my gray haired old head learns something every time I watch and listen to you two at work! J&J at their BEST!!

Yooooooooo!!!!!

Yes

You do an awesome job of explaining the technical parts of test and tune. Jackie is definitely a beast in the seat. keep it coming please

Man this channel has some killer content. If only discovery could have run that insted of the drama that it produces. Keep up the awesome work both!

When it comes to carburetors there is nothing better than a venture carburetor,, because it perfectly matches the fuel air mixture, and when it comes to the big blocks there's only one, it's called a "Predator carburetor",it turns the big blocks into a super bike motor, add nitrous to that and you will find a whole new animal

I could listen for hours, not repeating yourself constantly, your knowledge is never ending and you explain things in a way everyone can understand, Thanks

A few months ago sales of Vettes went nuts. Now 4150 carbs will not be found. "Chief said carbs make mo powah" hahaha. Carbs on most of my stuff. And I learned something today. rock on🤘 thanx

Love love love how you break it all down and still be technical about it! Lights are flickering in my head man! I will disagree on 1 thing you said in the vid....eff the 97° temps! 🤣🤣🤣🤣

Like most of these comments, the technical aspects and presentation format that you guys provide is stellar. I have a very similar, but different, situation and would like to compare notes and strategies/goals. For the past 3 or 4 years my project has been a C3, 68 Vette. Mine is a bit more of a street car - powered by a 632 on E 85 with a Holly EFI (sorry), 4L80E with lock up. Ridetech front A arms and coil over shocks, Redetech coil overs in rear with Tom’s Vette center section, inboard/outboard spindles and 1/2 shafts, weighs 3,400# full of fuel and with driver. Car runs very consistent 6.0’s with a MT Street ET drag radial. We have nitrous plumbed in the intake, but have not have not dedicated to tuning the nitrous, due to all the reasons that you have defined in past videos.

Think you're absolutely right about the ground the exact same reason that you don't want to weld on a vehicle with the battery hooked up all you have to do is think about where the ground wants to pull the power to from the ignition

It could absolutely be a possibility from a past experience with a 90s Ford explorer it had no engine grounds and welded the pilot bushing to the pilot shaft and trans pump which inturn caused catastrophic trans failure the first time it happened I didn't look at anything figured just a coincidence the second time doing all the work made me question why it was happening and bingo no engine ground grounded it sold it 3yrs latter still running good

just went through a ground issue after changing a 64 nova door fenders hoods and decklid to fiberglass. added 2 ground straps and bingo. I also had an issue on a leaf spring car cracking trans housing do to no midplate. if the motor is solid mounted to a chassis is technically part of the chassis rigidity. love the content

I started with EFI, and never had anybody truly explain carbs to me. This video was awesome. Good deal!

Thanks for explaining carbs to the new generation. Cant beat a good carb!

Wow. Outstanding video! As an aspiring street racer (‘71 C10 350), I learned more in that 44 mins than I’ve learned from any one person along the way. Please keep em coming! Rootin for you and Jackie all the way! You guys are awesome. Also, unsolicited name recommendation here but I love “Clifford”. Lol

I don't know a damn thing about racing, cars, or carburetors yet I just watched a 45 minute video about it and thoroughly enjoyed it lol

Generally no grounds on the motor lead to premature radiator failure, ground is found through water then radiator and into core support. Wouldn’t say its “common” but I see it with customer cars that were built by the owners or shops that didn’t have the knowledge.

I’ve seen Chris get some carbs tuned so good. Like you said super snappy throttle response. Y’all are like wizards with the knowledge y’all got.

Knowledge like this is priceless. We all have watched fast passes before but for the people that want to go fast a lot of the times cannot pay for this type of information the best thing that happened for the RU-vid racing channels is you leaving the show y'all are killing it

Chief is a absolute legend, he gives us thousand of dollars worth of information in these videos. Not too many people will give away their knowledge for free in this world.