To Pro Drag Racers the ideal sweet spot for weight transfer is referred to as "Instant center." Thank you for this explanation, Tony.
@UncleTonysGarage
2 жыл бұрын
Actually Bill, Instant Center is an imaginary point arrived at by continuing the link angles from the rear axle forward to the point at which they would meet if they were long enough to do so. There's more to it than that, but we'll save that for another video.
@billfioretti3013
2 жыл бұрын
@@UncleTonysGarage Tony, I agree. There is more to it than that. B.T.W. Instant center can be plotted. Experience in '70's Pro-Stock and Comp. with my former racing partner Ed Prout taught me that. Will be waiting to hear your additional thoughts on the subject. As always, thank you for the content.
@johnw5242
2 жыл бұрын
#Uncle Tony's Garage If you were willing to sacrifice 2-1/2 fingers, you'd make the worlds best auto shop teacher. Thank God for KZitem, hu? It's a lot less painful, and those exgra fingers come in handy! Stay awesome, Tony! I for one, really love your content.
@bunit121
2 жыл бұрын
Tony, We want you to talk about this until the end of time! These drag racing/nitro tech videos are awesome. This is stuff you can't find or buy anywhere else
@lewhanna6112
2 жыл бұрын
Been building cars for 40 years, never heard this explained so simply. Well done Tony.
@randyoehlert5045
2 жыл бұрын
The old saying. Spinning ain't winning. Move weight and center around but there's still a lot more to getting traction without wheel hop and on and on. But that's a whole different video. I'll be watching for it. Great explanation for center and ballist. Makes it sound easy. Lol
@dalewagatha9678
Жыл бұрын
Thanks so much for your interest in helping the regular guy out there.learing more and more every video.keep em coming!!
@TaekwondoFitForLife
Жыл бұрын
You are a genius sir! I am retired United States Air Force and for a small amount of time I taught physics relative to jet engines. This aside I find it very refreshing to find someone who speaks my language, or a language that I can understand readily. This is the very best example or explanation rather, of the dynamics of traction advantage, and center of gravity does go through transition, you explained this so well.. Better than I can equate.. I think it’s really cool how are you or into the physics Of drag racing! I love how you exaggerate the physics talking about it being on a 10 foot pole! This gives all a good understanding Sir! Oh I got a 1963 Chevy C 10 with a 383 Tremec five speed manual tranny, it’s a show truck but I want to be able to go with a balanced advantage of torque on the road. It’s not a drag truck it’s a show truck but just knowing that the physics are there is comforting for “control”… Michael retired USAF Disabled Vet, ptsd still turning those wrenches..😊 You rock sir!
@wheelieking71
2 жыл бұрын
Damn it Tony Defeo! So much science. And, logic. No witch-craft. No smoke & mirrors. No shilling. No bullshit! As a very mechanically inclined individual. And a 35 year machinist. Which basically loosely translates to a low-level mechanical engineering degree. From years of fixing poor designs by "real" engineers. I understand every single word you speak. It all makes perfect sense when you explain it. You are a fantastic teacher! I have heard you say several times in videos and lives that: "you need to get all this out of your head before you are "done"" (LOL). Well, I want to thank you for feeling the importance of that task! I consider myself no dummy. But, I have learned soo much! Volumes! From your videos. thank you for sharing all this practical knowledge. That most of us would never have the chance to learn properly. Because the average Joe, can not live at the drag-strip. Or even just all the practical wrenching knowledge. I can not even begin to count the AH-HA moments I have experienced watching your vids. Or the DUH! moments either, LOL
@joeanspach539
2 жыл бұрын
Yes please more of this. This is why I watch UTG. I love the nitty-gritty science of how this stuff works.
@mikebaldwin4220
2 жыл бұрын
Being of the 16 in the mid 60 group,we thought a lot of doing what you are talking about and some of us got most of the basics figured out but life got in the way and we didn’t get to go as far as we would like’d to ,THANK YOU FOR THE STEP BACK IN TIME….!!!!!
@williamstamper442
2 жыл бұрын
Well said. I've said same thing before, life got in the way. I still kept my first car/race car for when I do get back into it. In fact... I hear my '70 442 calling me now... "Put me back together already! It's been 20 years!"
@billnlori3149
2 жыл бұрын
Very cool stuff!! I remember a Bob Glidden interview where he said to get your engine running clean and then focus on the suspension, that's where the time is!!
@tonypace2009
2 жыл бұрын
Glidden I loved his cars left always low and gone off the tree.
@williamwigfield7296
2 жыл бұрын
Have to admit to being an engineering geek. Love the real world applications of trig/ geometry/ calculus into fun science. My Physics teacher always said if it doesn't apply to pizzas and baseballs what good is it? I've been w/ your channel from the beginning and have to say it's always informative and fun. Thx to all @ UTG.
@timmchale6880
2 жыл бұрын
Tim from Ohio really love the way you inspire all the youth keeps the spirit alive keep on keeping on brother
@mikeg4163
2 жыл бұрын
Tony…you bring a great “flavor” to the hot rod scene
@danfarris135
2 жыл бұрын
Living in the salt belt, I always get sidetracked with the term rust free. As I sat here looking at the clean wheel house right before you pointed out the rust! Nice clean car you have.
@OllamhDrab
2 жыл бұрын
When my ex dragged me down here, I was like, "OK, one thing's for sure, I'm not leaving without a good rust-free car." The leaving part proved complicated though. :)
@tomdamon7208
2 жыл бұрын
Great video ! Herb McCandless once told me , "the slower the car the more front end rise . Faster the car , less rise is needed ." Love the vid , keep it up !
@shaunclifton5281
2 жыл бұрын
Herb Rules. Such a great guy.
@akt2603
2 жыл бұрын
Everyone knows the secret is stickers. Lots and lots of stickers.
@tomschultz2833
2 жыл бұрын
No it's chrome!! Lol
@lilmike2710
2 жыл бұрын
Yes, but not everyone understands the HP+ per the sticker used and where to put em. Performance parts stickers on back window = 5hp each. On front fender behind tire = 7hp But on the bumper it's minus 5hp. For ricers it's different. Any sort of anime sticker = 5hp. Stickers with any Asian letters = +7hp. And for ricers, Plastic-dip IS considered a mod.
@SlickTrickRC
2 жыл бұрын
Haha. I love it. ❤
@JC-yt1pm
2 жыл бұрын
I have never thought about cars this way and i should have as racing bikes we do a lot of this with body position! Excellent thanks Tony!
@WalksInThunder
2 жыл бұрын
Very clear and concise. Thanks 👍
@captainjohnh9405
2 жыл бұрын
"built for a purpose" In aviation that is why all super sonic aircraft have delta shaped wings (think Tu-144, Concorde, and Boeing 2707). Low powered aircraft that are trying to achieve long range have long, skinny wings whether they are gliders or the U-2. Passenger haulers that fly about 600 mph all have fairly long wings swept back about 30 degrees. Whether one is dealing with levers and Newtonian physics (dragsters) or Bernoulli and liquid or airflow, there is pretty much one formula that works best.
@iliap1217
2 жыл бұрын
Uncle Tony is our motion dynamics whisperer
@cobyburrow9339
2 жыл бұрын
Great lesson in layman's terms!
@brianlevan339
2 жыл бұрын
Awsum !!!! I now know why a funny car chassis is built in the configuration it is , I learned something.
@joshmorris3469
2 жыл бұрын
I've grown up messing around with short bed pick-ups.. used a rich tip in mixture as traction control for years... Never had the money for metal to experiment with suspension stuff... KZitem and midlife issues have me planning how to experiment now though...😂
@Anthony-vq1wn
2 жыл бұрын
Uncle Tony sharing knowledge. Old guys rule.😎👍
@totensiebush
2 жыл бұрын
Wow, I'd seen your reply to my comment the other day and didn't expect to warrant a whole video. Thanks for the reply.
@UncleTonysGarage
2 жыл бұрын
Thanks for the inspiration!
@justinnewbury6785
2 жыл бұрын
These are the best videos on KZitem
@joshuadille5005
2 жыл бұрын
I thought I gave good reference? Haha that so much simpler the way you put it . People don’t understand. But if they watch this they will lol. It’s amazing how motion transfer to lave-rage torque ect ect .. tony is a mad scientist!!
@stevewielichowski7951
2 жыл бұрын
Could be his best video yet!! Thank you
@deang9061
2 жыл бұрын
Wow, some of what you said went over my head, but what if you could move the ballast as you went down the line? Up, down, forward, back in those few seconds. Moving a chunk of steel is not an option, but tanks of water and a high volume pump. The pump would have to be rated in gallons per second. My hair brain idea.
@slickline4576
2 жыл бұрын
Tony BEST VEDIO EVER... this is what separate the winners from the also ran'S.
@davenorman8251
2 жыл бұрын
When I started racing street drag bikes the best advice I got was "try to get the counter shaft sprocket either inline or below the rear axle" wheelies are cool but slow.
@jarkkoniemi3203
2 жыл бұрын
Good job👍 Best video ever. You really know how to explain these things to "normal" people. Thanks
@jonmoore8995
2 жыл бұрын
Fascinating technical info. Learn more from this. Please keep it up.
@chrisduda1974rr
2 жыл бұрын
Ramble on, it's enjoyable
@alva1370
2 жыл бұрын
Excellent talk on a difficult subject.
@hlukufarmmechanic2497
2 жыл бұрын
well this is some good knowledge to have about drag racing. thank you uncle Tony.
@carmudgeon7478
2 жыл бұрын
Weight transfer used to be over my head. No, over my house. Thanks for illustrating it so well. Now I can apply it so my Jeep doesn't flip over backwards on a steep climb.
@DistinctOgre
2 жыл бұрын
You've taught me more about leaf springs than anybody I've ever known. Teach us about the ladder bars and 4 link. 😈
@bjornandersson5694
2 жыл бұрын
Great information and very well explained!🙏
@radkesrods1184
2 жыл бұрын
most of us pro's dont youtube. 1 were too busy. 2. our secrets are too valuable. 3 why bother when you got uncle T
@DuckyHunter812
2 жыл бұрын
Really enjoyed this one, very informative.
@richardoliver1303
Жыл бұрын
Where were you in 67 when I got my driver's license and wanted to know what makes cars go fast. You are the Professor
@mikesr3407
2 жыл бұрын
Keep it up 😉 Uncle , always going on about racing !
@peterkielczynski7427
2 жыл бұрын
Great vid UT. How were the knees when you finally stood up. Fan from OZ
@89ddx
2 жыл бұрын
Here is an interesting thought and I would like your input. Caltracs and slapper bars cause the rear to separate from the chassis. Thus moving the center of rotation below the center of gravity. Planting the tire and moving the weight up. Where as ladder bars and 4 links tend to do the opposite by pulling the weight down onto the tire. How would you distribute weight to make each work better?
@clembob8004
2 жыл бұрын
Rust-out is a good weight loss strategy on any drag car. Live in the rust belt and watch your car lose all sorts of weight. Not necessarily in the right places though.
@warrenlucier5796
2 жыл бұрын
Yeah, it reduces the air drag and lift in the wheelhouses too 😂!
@BurchellAtTheWharf
2 жыл бұрын
Love this channel and content
@mikerundell6517
Жыл бұрын
Great video Tony love this one😊
@marcgendron6745
2 жыл бұрын
Great vid UTG !!!
@rctopfueler2841
2 жыл бұрын
i thought that removable back plate of my el caminos tailgate was a factory traction control ,just keep putting sand in it till you quit spinning and if that didnt fix you.put it where the removable rear facing seat plate was at in middle
@moparone7962
2 жыл бұрын
I always like the weight transfer of the Little Red Wagon and the Hurst Hemi Under Glass.....
@matthewcalifana488
2 жыл бұрын
Uncle Tony what is your opinion on cars that squat vs ones where the back rise on launch ? Thanks !
@monstermudratroddragworth3738
2 жыл бұрын
Thanks for the video very interesting
@craigmeyers8793
2 жыл бұрын
Love when your into teaching!!!
@grantsgalaxy687
2 жыл бұрын
Power is what everyone is concerned about , I think weight , suspension, and a well sorted out trans and diff for the engine makes more than a difference. Big power does not make quick et
@needmoreboost6369
2 жыл бұрын
Damn right my ute makes good mph but et is trash on the rubbish trans and tyre combo, frying all the way to 60mph before the slow shift to 3rd let’s it hook and if the surface isn’t right it’ll flare then haze 3rd and I’m told my tune is trash and my turbo is no good but for bop it’s just silly enough for a daily can’t imagine this trans or my tyres lasting longer with more power right now
@gtols228
2 жыл бұрын
Great information Tony
@larryreagan6936
2 жыл бұрын
When I was young I always wanted to lift the wheels off the line because I thought it was cool! my dad used to tell me "if you're lifting you're not getting down the track" I realize now he was right! yes you need the torque and weight transfer but if you've ever watched a slow motion video of your car leaving the line it's flexing a bunch of different directions at once, its almost like it's dancing. I've seen waterfowl do mating dances where they flex and twist and kick up out of the water much like a car taking off, anyway I was older then I'm glad I'm younger now lol Great video as always!
@DependableAutoTruck
2 жыл бұрын
i had a 1974 duster with a 360 would run 1.53 60ft times with a 26X12.5 MT treaded street tire. had super stock springs one thing i did was mount the battery just above the rear tires under the package tray. did several other things to make it work could out run really fast cars on the street my car wasn''t fast it was QUICK it is hard to run a QUICK car down on the street when it will 60ft like mine ould
@Pilgrm
2 жыл бұрын
Tony, I'm not even into drag racing, I just like old and simple/ rat... But, you almost make me want to get into drag racing. I had no clue about the science of weight transfer. Thanks for sharing your knowledge! ✌
@playasurf1000
11 ай бұрын
Love the tips. Though I've got an xb falcon coupe and working to get it to handle well on street circuits and rallies. Im not super inteterested in quarter Mile racing.
@pauberrymon5892
2 жыл бұрын
Hey Uncle Tony next time talk about the Twisting of the car in response to the onset of the high amount of torque applied when coming off the line where it is the maximum output at WOT on the drivetrain as in the first 25feet.
@bnewton239
2 жыл бұрын
great info, thanks for sharing.
@OGbqze
2 жыл бұрын
Pure knowledge. Absolutely priceless information. Thanks Tony.
@428eliminator3
2 жыл бұрын
Tony can you explain Instant Center for the layman?
@napoliansolo7865
2 жыл бұрын
The physics of racing. Thank you.
@chrissimes9445
2 жыл бұрын
Daaaayuuum! You just blew this ol' mechanical engineer's mind- I had to watch it several times, still ain't got hold of everything you packed in there! I've done very little drag racing, more autocross and turning corners- but the way you break this down is incredible, really. It's basic engineering dynamics, moments (torque) and forces, but the way you explained it in plain language is remarkable, it made it gell for me even though I should already know this in theory...I have never seen it applied this way. I've been dropping in a while, but this made me subscribe! I'm trying to apply this line of thought to not only straight line acceleration, but turning- left only for stock cars, both for road cars and racers- but it gets complicated fast! Obviously stock cars are ballasted, and the same thought processes apply, but you are working in multiple dimensions now! Incredible.... So thanks for expanding my mind today! Before, you seemed fairly intelligent if not polished... but it is clear you are one fart smeller! Oops, I mean smart feller!
@alanpaardekooper1148
2 жыл бұрын
Really enjoyed it. Thanks for the video 👍
@raiderjohnthemadbomber8666
2 жыл бұрын
My overwhelming statement is simply this; once again you have presented a topic that many people are unaware of and made simple to understand, highly informative and entertaining. Thanks Uncle Tony!
@charlesjanuska3562
2 жыл бұрын
I have no words to say what was just taught to me. I'm just blown away. Thanks for opening my mind to so many new concepts. Once again, you are the man.
@carsntrucks782
2 жыл бұрын
Can’t wait to see it go down the track
@craigdotson1248
2 жыл бұрын
So because the class prevents you from adjusting suspension geometry to move the rear suspension's instant center you jack the CG around relative to the fixed instant center? I guess that makes sense. Ever talk about launch/60ft optimization via valve lash adjustment?
@untrainedmechanic
2 жыл бұрын
So is a rake where the rear end is jacked up and the front low just for looks? Won't the car want to squat and lift the front?
@nickstephens2913
2 жыл бұрын
Wow some of the best information I've had In a while !!
@victormiranda9163
2 жыл бұрын
I truly like your racing head talks. race prepping any car is a similar set of tasks/considerations I like the road racing (scca) type cars. So you are a bit out of my knowledge. The weight transfers side to side are a bit more familiar. the road racers have few options to success...
@HarleyHawk1
2 жыл бұрын
Excellent description of the physics behind the weight distribution and the acceleration of the car. The vector of the force in relationship to the center of gravity are crucial to understanding the rotation of a rigid body. Well done Tony!
@timothyarnott3584
2 жыл бұрын
Hey Tony, Tim here, SO GLAD you explained that drag racing is SCIENCE!!....NOT just pullin up to the next guy, and hammer it.......i've known for years about certain chassis stuff.....(instant center, pinion angle/snubber).....but you brought up a few points, that I learned something new!!!!...invaluable!!!....TY SIR!!...another KILLER UTG vid!!!......i cud pick ur brain for days.......i am of Stock Eliminator cloth...so to learn the drastic opposite stuff that Funny cars are doin, was just a breath of fresh air, and made my synapses bounce and tingle with joy!!....PEACE to you sir!!
@grantbovee
2 жыл бұрын
thank you
@superrodder2002
2 жыл бұрын
Back in the day when my brother and I were building chassis for all the local guys I would sit down and have a long talk with the customer about what engine/trans they were putting in the car and what HP they should have and then spec out the suspension and wheels to make the car react at our local tracks. Lots of thought goes into each combination because some cars are nose heavy and some are better balanced from the factory. Juggling weight around in a car to get it react correctly takes more time than most people are aware.
@outlawbillionairez9780
2 жыл бұрын
As far as weight transfer goes, how is it affected by wrinkle Wall, or say, drag radial? Do you want different transfer for tire construction?
@immikeurnot
2 жыл бұрын
Look to what he says about "no prep" for your answer. Different traction at the line demands different solutions, but ultimately you want the rear tires (assuming RWD) driven into the track as hard as possible to maximize traction. The only real question is how you get there. Honestly, "drive the tires into the track as hard as possible for traction" is the answer in every kind of racing. It's only a question of how, and if you're giving up too much of something else to achieve it e.g. too much drag for downforce in certain racing, or too much wheelie in drag racing.
@craigbenz4835
2 жыл бұрын
"Who doesn't love a wheelie?" Love it.
@d.moutdoors4377
2 жыл бұрын
Just like operating a fork lift about weight distribution of the load. Cool. I appreciate you taking about I got a 1989 s10 with a 350 in it and I want it to hug the road it's going to be my work vehicle.
@tylerroe5175
Жыл бұрын
How does this change (if at all) with an AWD car? I love Tony and all the info he provides but I’m much more into the AWD Honda 4 cylinder go-fast stuff. Hardly anyone I know runs FWD or RWD cars any more. Audi, BMW, Honda, etc if they’re being raced are AWD now. Im really interested to know how all these principles change with an AWD setup
@jamesmarze9850
2 жыл бұрын
Awesome topic of conversation Tony great video
@Andy-bv8gp
2 жыл бұрын
Thanks Tony I've been watching your videos for about 3 years all the way from Chicago I really can relate to everything you talk about on this channel
@chilee6994
2 жыл бұрын
Interesting information about center of balance.
@minnesotatomcat
2 жыл бұрын
Great video, I like the way u explain things 👍 you’re never gonna please everyone in the comments section, there’s always that one guy who knows everything
@UncleTonysGarage
2 жыл бұрын
Tomcat, this was an example of a viewer asking a legit question that got my wheels tuning and inspired a video. This is how KZitem should be done!
@j3ffr0ck24
2 жыл бұрын
@@UncleTonysGarage AGREE.
@rustyrideon
2 жыл бұрын
Great vid Tony. Still waiting for that slant Fiero though. Jk
@alsguitars5127
2 жыл бұрын
So you can vary front and rear wheel size, tire size, suspension height and the variance between the two. Would you ever change the actual position of the weight in a stock car, like raising the powertrain or shifting it rearward or forward? BTW love bottle rocket. Looks like grandma bought a car at the police auction. All the best.
@donreinholz8121
2 жыл бұрын
Great explanation. Tony. Different track surfaces, temperature, tires, etc all affect drag racing.
@hooptierescue2540
2 жыл бұрын
I'd like to hear more about the gasser/street-freak concept. Why the solid axle for instance? I think you've kind of explained why they are so jacked up, especially in the front end, but more detail on that particular configuration would be appreciated.
@kenengland3700
Жыл бұрын
Let's include altered's into this conversation.
@randylamountain5916
2 жыл бұрын
I built a 1983 short bed ranger around 2004, The cops nicked named it the little shaker ford ranger. I did not have much money to spare so i made stuff work for the most part. Had a 8.8 rear out of a explorer 3.73 gears ladder bars that went just about to the cab. N 50s on the rear. C6 trans with a shift kit. bought a reman 302 from napa slapped a cam, headers, gear drive, and a tunnel ram on it that i barrowed, And as crazy as this sounds i put a 600 carb on the front and a 650 on the rear and used a coat hanger to tie the two together. Like i said really short on funds but it was working. Striped as much weight out of the front end as i could , Hood, inner finders etc. pushed the motor back were the back carb was 2in from being in the windshield. Needless to say my poor man combo worked. The front tires would only raise about an 1in and i could beat a good majority of 5.0 mustangs in my surrounding area at the time street racing. Had one guy said when i hit 2nd gear i left him going down the quarter sideways. I ran the snot out of my napa motor for 4 years before i pulled it and sold the truck. Now it sitting in my model T. Im sure its life is coming up to a rebuild. Just one of though weird oddity motors that you cant seem to kill.
@johnscott2018
2 жыл бұрын
Always look forward to the next installment but what happened to the live shows?
@WhiteTrashMotorsports
2 жыл бұрын
This is why drag will always be my favorite type of racing I love the science, that also puts low speed rockcrawling in second.
@larrybrown7216
2 жыл бұрын
Thanks tony ! would be interesting to know if they were both USA parts
@georgewelker853
2 жыл бұрын
My only experience with power management is the difference between loaded leaf springs and neutral leaf springs on the takeoff. I thougholy enjoyed walking away from “sports cars” in traffic with a stock pickup truck. Load up the springs and stuff it, then watch the guy’s face at the next light 😂😂
@tonypace2009
2 жыл бұрын
Keep these coming .
@jamescampbell4121
2 жыл бұрын
Great job!
@raginroadrunner
2 жыл бұрын
Tony...great job. We struggled with this in the 60s. It was unclear and we tried everything. It was mostly a mystery. Now it is just common knowledge.
@wayne8498
2 жыл бұрын
One of the best vids ever. Much appreciated.
@thenorm8489
2 жыл бұрын
makes sense to me...if weight is being transfered from frt to back and you don t want to add weight, lighten the body behind the axle and keep the weight up and in frt of the axle
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