It's so cool seeing Bob much more comfortable on camera now. I remember at first (like most people) didn't really want to be on camera. I love watching Bob and listening to his knowledge ect.

@NonTypicalRacing

6 ай бұрын

Well said, ditto everything.

@susanhill750

6 ай бұрын

Bob has made u guys a great great edition to ur racing crew. Bob is the man.

That's awesome that you're showing this because it explains the difference right there. Good job Bill 👏

Thanks for keeping it low-key, not having any ridiculous music, or obnoxious intros. MUCH appreciated. Think I'll stick around.

In terms of tunability and simplicity carburetors are hard to beat... good video

You learn something from each day with the old man and Bob working together, the knowledge between the two is accumulated over decades of hard work.. You learn about patience, frustration, solving engine issues and so much more besides just working on cars... This is a very good reason to watch but more importantly in Bill's case his family just shows the work ethics passed down to Billy & Tommy and the multiple people who haven't been shown, Bill helps people because he can , IT'S JUST THAT SIMPLE..🙏🇺🇲🇺🇲OMG🇮🇪🇮🇪🙏

Uncle Bob is looking at lot happier than ever you have changed his life that's all 😊😊

these videos with bob are great and very info packed would love if you could get bob in front of the camera a lil more while hes messing around in his shop fixing hings for you it ould make for great content and be educational you dont have to be there he can film himself explaining what and why hes doing what hes doing

Even a old dog like myself can learn something, thanks for sharing Bill,uncle Bob, and Ryan. God bless and as always be safe.

Bill thanks for the great information you guys shared with us. You have a great bunch of friends and and family. You have been blessed with this great gift that you share with all of us. Thanks again

@Dutch-wg6pr

6 ай бұрын

Very well said, thank you

Love the content! I use a msd 6014 box on my carbureted ls engines. The key is time them like a standard small block! Just because you have coil on plug does not make a difference. Then once its done you can do individual cylinder timing and even create a timeing curve for drive ability.

@ShawnGilbert1967

6 ай бұрын

You would time them like the combustion chamber efficiency dictates thru every standard practice to find optimal timing for a given cylinder head design and induction package.... You go tossing sbc timing at SOME ls designs especially higher compression ones on stock pistons and have a bucket close... In his example what showed little gain at 33 via EFI needed 36 to replicate with the increased droplet size ( there are other factors involved too ), just take an LS engine that has knock past 24 degrees and toss 36-37 locked out in it at peak torque LOL bring a broom....

Based on the tight EGT spread between cylinders...perhaps the most reliable route for a lil street engine that makes good power...go EFI. Yes more maximum power using a Carb; however, the wide spread of EGT suggests less long term reliability. Pretty interesting stuff. I considered going carb when I built my 6.1...but wanted to make good long term power. I've now put nearly 50,000 miles on this engine in 5 years. Stock gen 4 bottom end, 30 over flat tops, split profile BTR .593/.631"lift cam ...Trickflow 225X heads that flow 348 cfm at .600 92mm throttle body , 40lb injectors and 1 7/8" long tube headers. Black x racing built me a stout 4l60E with 3600 rpm stall converter , and 3:73 rear gear. Pretty tame compared to what the boys run, but runs strong...smacked lotsa asses with it...often get well into the 20s for mpg, and all I've ever done to it is Uncle Buckos favorite thing...maintenance.

@ShawnGilbert1967

6 ай бұрын

What's it run sounds like a good combo

@mynameis63

5 ай бұрын

@@ShawnGilbert1967 Thanks man, yeah it runs great, have never put it on a track...just a bit of street racing in mexico. I built the car to be more of a GT.

@IlPinnacolo

4 ай бұрын

The engine doesn't care *that* much about the egt spread. You'd lose it if you saw the egt spread on a Continental O-470, and your life literally depends on the reliability of one of those.

I've helped out so many people over the years fighting carb issues and it's almost always been timing

Some of us would've never known that's what happens when you swap until we tried it ourselves. Thank you for putting this out for us to see, truly appreciate you and Bob passing on the knowledge.

Hey Bill! Now we are back with you learning!!! These are one of my favorite videos. Good to see everyone working together make this little 5.3 work so good. Great job guys. Very informative. As always stay safe. 😀😀❤️

I'm liking the way this new year is starting off. Uncle Bob doing his thing. He's looking healthy and happy since changing his work load. God bless you old man. Great video

I know you don’t enjoy doing the voiceovers but of all the KZread channels I watch you the best at it Bill. Keep the great content coming

Hey Bill, great comparison. I have built carbs and modified alot of carbs for many years and have been waiting on seeing this video. At 59 years old I am still a carburetor guy but learning every day on fuel injection. Thank you bill , Bob, and welcome Ryan a big thank you to all you guys yall put a smile on this Ole guy this morning . 👍

the gm bread box intake would be down 5hp ish vs that holley. also it is a must to verify timing on ls engines. ive seen them 8 degrees off. if verified efi timing wise for pump gas rec ports like 25* and cath ports 28* . carb wise seems to be 5* more from the combos ive had over the yrs.

@SamSheepDoq

6 ай бұрын

Came here looking for this comment. I saw 33* and ran to the comments lol

Yall have got me through some hard times recently. These videos pull my mind off the crazy whirl wind called life . For 30 mins I get to relax and watch. Thank you all continue the great videos.

Bill, great ending to this video, I'm still smiling at the results. You da carb man bro! hance

Uncle Bob and Bill..Thanks for everything. We love yall

Hi bill , love the carb videos. Glad you feel better ❤

Loving this one, looking forward to that e85 swap 👍🏼 Appreciate the work y’all put in.

the MSD 6014 setup to run the LS ignition system probably would have been better suited for running the motor with carb. cool to see bob playing with his new dyno setup.

@ShawnGilbert1967

6 ай бұрын

I'm not sure why they couldn't run a map sensor off the plenum and just run the fuel tech it doesn't know what it's hooked too, ive done this with FAST, MS3Pro and Holley

@JBAutomotive794

6 ай бұрын

@@ShawnGilbert1967 I agree the Fueltech was confused because it was missing a TPS signal as well no Map signal.

@ShawnGilbert1967

6 ай бұрын

@JBAutomotive794 I'm not certain on fuel tech ( but I mean Bob should invest in a carb retrofit tps many sell them, ive used them for carb 4l80e applications) but just off the top of my head wouldn't speed density go pure map... Though TPS is probably telling the ecu that it's at idle... For a bush work around a $12 oriellys ls tps plugged in, scaled, then laid to 100% walk out cell? Just for that day.... But yea a retrofit carb TPS would probably be useful there...could go carb to efi testing and selling..... It's interesting it's been years since I looked at fuel tech software though I went deep in MS3 Pro Ultimate which is limitless if you think it, between you and the community it will do it lol....running a damn Rasberry Pi4 to handle can shit, wild west fully unlocked dream it do it..

I 100% agree with you, the spacer with a single plane would work quite nicely on that engine. what a lot of people don't understand is whether it's a small block, big block, ls, ford, or even dodge. you have to remember that they are just basically big air pumps. With that it's hard to knock on a stock engine with a cam making over 400. got to love that flow from those ls heads.

@alanmeyers3957

6 ай бұрын

They are not air pumps, at all.

@enigmacamaro

6 ай бұрын

@@alanmeyers3957 explain to me how they are not. They suck air (and fuel) in, compress it, power stroke, and then press air (exhaust) out.

@horsefly1020

6 ай бұрын

He can't explain it.​@@enigmacamaro

@ShawnGilbert1967

6 ай бұрын

Look up the term volumetric efficiency ( hint it's how the efi works and why they are air pumps)...with overlap and headers for scavenging you actually can get more than 100% volumetric efficiency and it all depends on baro at intake stroke I just cant understand how people, though it's cliche, can't see engines as air movers...everything is rated that way including gasp port cfm....

Bill you almost had me there with your sign off music at the end of your video. I thought your weren't going to show the E85 dyno pull and end the video like a good TV series to cut it short. Then tell us you'll have to wait till the next video. We would have been upset to have to wait ... great video....

Very cool to see the differences .. as a gear head myself I love looking and seeing the different data gathered by different setups

MY FAVORITE GARAGE CHANNEL ! 😁👍🏼 Bill I have a 5.3L LS aka: 327 Ci and I love it. Chevy made their small blocks last a lot longer and get 3-4X more miles outta them before a rebuild after they came up with the LS. I’m a old school guy from the 60’s 70’s & 80’s But Chevy took their engines to the next level with the LS as far as ENDURANCE & LONGEVITY goes. I was also hesitant to give the LS a try but once I did I really like the LS 5.3L & the 5.7L small Block LS’s they’re great engines.

@ShawnGilbert1967

6 ай бұрын

I agree for the most part but I've seen several I mean several 350 Vortec engines over 300k in trucks ect.... Maybe 1968 tech but there is not inherent problem with the geometry of the sbc when done with modern metallurgy and build practices...id postulate drop the ring size to as thin as LS and there ya go... Now stock block isn't gonna hold the power the skirted crank LS will hell no...but endurance shouldn't be an issue with proper fueling and cooling...

I think you ought to make an Uncle Bob t-shirt with him pushing the dyno handle through the window!

Never fails omg here I am 230am in morning watching this video with at most love the old man's garage in macvays Dyno room.E85 years through this perfect LS 5,3 I love to put in my 04 Silverado..

@thehouseofhorsepowerautobo4506

5 ай бұрын

Lol I just read this and it's 220 am

@jessiecasteel2902

5 ай бұрын

@@thehouseofhorsepowerautobo4506 I made that comment month ago.... DETAILS

The info is amazing. Love the carb videos. I have learned so much. Getting ready to fire up my 71 nova here soon once it warms up. Having a timing issue coughing put the carb. Pretty confident that is what it is. Thanks old man!

I’m not in to changing jetting, accelerator pumps every time the weather changes. My Edelbrock pro Flo on my 406 is maintenance free for the most part and self corrects for any change of altitude/weather conditions. If there is any loss of hp with efi it would be minimal, benefits outweigh any negatives in my opinion

@wydopnthrtl

6 ай бұрын

100% true. For a street car and yr round operation.... FI w/a feedback system cannot be beat. On a INDOOR dyno.. and considering costs... a carb might inch out a FI. But... my engine is in a car... and I drive at part throttle 99% of the time.

Really enjoyed seeing the comparison on an LS with the carburetor and tuning tips from the old man

I love it when your at Bob McVays engine shop.. I love engine building and hearing them on the dyno 😎 Cheers from 🇨🇦

Would be cool to see a single plane vs TBSS intake test.

Holdner had similar results. Made the most peak power with a carb. He made more power at lower rpm with efi but was using the FAST intake.

Love watching you old junkyard dogs learning new tricks! Much enjoyment on my end!

Super interesting!! Thank You. Good to see Bob doing well.

After all this time I’ve watched your family I finally got to be the first one to give you a like

@garymatthews1572

6 ай бұрын

I know what you mean brother I caught 1 bout 2 years ago !

I always learn something from watching your videos bill keep up the great work

video was informative .always good to see uncle bob an his assistant an of course the ole man.thanks for sharing

Great video Bill, I love the videos of you and Bob running the LS with the efi and then the carb very informative.

Another great video Bill - really interesting to learn how to deal with these various issues that most people inevitably run into at some point if you're messing with a new combination.

Great videos mate, always a pleasure to watch, very interesting efi vs carb and old school wins, good job.

Loved you throwing the E85 carb on and showing the numbers... Crazy that the E85 made so much more power than the gas on an engine with just 9.5:1 compression..... I think a set of flat tops to bring it to 11:1 with the same combo dialed in it would see 450hp and 410ft lbs.... I love these videos of the in depth carb tuning😢

I love back to back tests. I remember decades ago Pat Musi was an early adopter of EFI. His race engines with carbs always made more peak HP than EFI. But he proved EFI was faster on the track than his carb combos because EFI made more power throughout the power band (under the curve) . Cool video, thanks.

You explaining what was going on throughout that video. Brought a lot of knowledge to my attention. One of my favorite videos in a while 💪🏻

Can’t wait to see a part two of this dyno video keep up on putting out good and informative content

I appreciate the knowledge u share Bill. Thank you sir

OOOOOHH Mr Billiam......this is awesome! I did an msd for a 6.0 ls carburated. Revs up so fast. I knew about this 10 years ago. Thank you sirs for showing the learning curve! FnA. Bill and Bob The old wise men. Great work!

Single plane intake will make that motor sing, another test I would do is flip the spacer on the dual plane (the holes faces the intake) and see if it likes the divided center of the spacer and distribute the mixture, can't wait to see the e85 results and amazing content sir thank you.

Would be interested to see what happens with a JEGS performance EFI intake. Really great numbers for a 5.3. Great job.

Great Content for the LS not looking to to do the change But your helping me with the process Thanx for sharing your experience And thoughts Have a Great Day 👍

Great video.Thanks to all involved

This is a great what to do video! Great job Bill and Bob can't wait to see More!

Great video. That was very educational. That’s going to help a lot of people get there set up right. Great work guys

The videos from you src gen II garage word on the streets and Jimmy dale are really helping me out right now. Thank y’all.

Great tuning skills!!! Kool content keep it up old man!!!!

Very good video. Great info. Thanks guys!

Bob at the dyno is like a pig in a cool mud hole, lovin every minute of it.

Great video!! You and Uncle Bob have a wealth of knowledge! Keep of the great work! Uncle Bob is hoot!!

Great video Bill never knew the timing thing about fuel injection to carburetor. Thanks

Bill you are very well schooled on carb operation and timing, you are waking up alot of the instruction and operation of my engine design and operation days, we didnt have a dyno at the tech center but we did have some test mule cars and a long strip of blacktop in the back parking area, we had no DIS or EFI back then so it was all seat of the pants and listening, checking plugs and tailpipe, this kind of tech is teaching these young guys that think they need a scanner to diag a car for them to pay attention to how the car is acting

LIGHTS OUT ! AMAZING knowledge solving real-world problems. Keep the bangers coming.

Thanks Bill, another Great video and learned a lot watching this. The little 5.3 can make some pretty good power.

Definitely all kinds of fun to watch this kind of video from y'all!! Now a single vs. a fast or a hi ram. Lol

I watch Engine Masters all the time, so I knew I was going to enjoy this video for sure. Another awesome job Bill!

I liked seeing that Bob is always wanting to try new things just to gather information and he's been doing this for many many years now but just likes being in and around motors

Uncle Bob “I don’t know why you watch” 😂😂😂

Thank you for your dedication to show us all this. Absolutely love yalls content

Great to see Bob having fun,Thanks Bill for the comparison, I'm really impressed with the ATM carbs.Ryan seems to be a good fit with you and Bob.

Great video. Reverified what I already knew, but it’s good for the younger generation to see it on the Dyno. Carburetors make more power than EFI, always have and always will! I would love to see few pulls with a 750 and a 850 on gas just to see how much power they would make vs the 950 on the 5.3.

@ldnwholesale8552

6 ай бұрын

I had someone telling me recently I need fool injection on my road racecar. Asked why? It will make more power, as this just proved it will make less power. A passenger intake may make some more with efi,, but a single plane will make a LOT more with a carby. As will the right size carburettor also. I am happy with the efi on my road cars, start ok, drive ok and reasonably economical. But power? No.

I really enjoyed this episode. I’ve been a weekend warrior wrenching n stuff over the years since high school. Just started to build a 6.0 LS and I’ve been doing my own tuning with HP tuners. Playing with that carburetor make things very anolog and you understand the dynamics of the fuel/timing relationship.

Great video sir stay warm. Thank you, uncle Bob.

That was great!! It reminds me of what the show "Engine Masters" did to de-bunk engine performance myths. My train of thought has always been outside the box to improve on mainstream performance ideologies. I think you can use your experience with carburation to incorporate EFI and highlight the challenges when changing to power adders like turbos and superchargers. I look forward to your next installments with your dyno mule!!

I'm glad to see them use the "red hot" cam, since that's the cam I've been considering purchasing. Also really cool to see a comparison like this.

When it comes to a carb ole Bill Knowles his stuff, great job Bill and Uncle Bob. If I had a street car you can bet I would have a ATM carburetor.

Once the carb was swapped and the hiccups worked out, i guessed the first 3 pulls exactly on the money. I missed the first pull with the spacer by 3hp. Missed by 1hp when jetting the secondaries back to where they were. When switched to E85 i nailed the number again. This is fun stuff! Those HVH spacers can be an ace in the hole on engine dynos. Problem is often hood clearance when you get home and try to run one under a stock hood. Love this stuff Bill. Cant wait for the single plane tests!

Thanks for new video 😊

Fuel tech has excellent customer service. They just want to help. That’s getting harder to find in companies these days.

Love your show. Keep them coming.

Good video Bill. Very useful information

Excellent VIDEO!!!!! great source of information

That is an amazing extinguisher on the wall at 7:16! Cool video.

Engine Masters Bill and Bob episode! I definitely love it, thanks for posting!

Keep on grinding sir!! You’re doing great!!

Nice video Bill,I love it when we learn something

I love my old school 327 w carb just fine. Its a frame twister in itself. . It currently plays in my 74 c10 lowered stepside

Great video and education Bill, keep up the good work !

Hey Bill, was the barometer the same both days. Can't get enough of your overall knowledge of carburetor turning.. Another fantastic video..

A dual plane intake needs a open spacer plate IV had alot of experience with them on dyno and at the drag strip and the 2 inch open spacer makes way more power than a 4 hole spacer because of the separation in the intake...

The dual plane intake i have i cut a notch in the center divider and it helped everything even out and made it run better buy I like the single plane intake better and I'm sure on the dyno a single plane intake is the way to go.

I can only imagine how many carburetors you have played with to get this knowledge.

Absolutely love this video keep em coming guys

I really enjoy these kind of video's

Love the video and them atm carbrators are so nice one day I will put one on my moms 72 charger

Keep warm everyone thanks for sharing

Wooo, Wooo...can't get enough of that sound. Engines running at their peak performance, and we keep tweeking on them...Wooo

Love the video so much information in it for people that like ls engines that want to do a carb swap on one. Uncle bob is like a kid in a candy store when the old man says he has a e85 carb let’s do it uncle bob likes playing with his engine Dino and seem like he is doing better with his health to as well

Mill those 706 heads .040 and do a 3 angle vj with 2.00 intake valves just to see the power it picks up.