If you want to try aluminum wheels, have the surface of the aluminum prepared with a knurling tool at the machine shop. However, I think I have a better idea. At work, we use a lot of urethane and epoxy for casting, and they are quite impressive. You could have an aluminum wheel machined with channels through the diameter of the wheels, then cast urethane around the wheel. This way, the tire would be mechanically locked to the wheel.
I get the feeling you're going to run into ballooning issues there, and I think, especially with how often the current tires are being completely destroyed, it's not going to be cost effective, I think the current technology needs to be refined and I think we need to stick with plastic wheels but design them so that their structure accounts for the crazy forces that their experiencing.
Everybody should at least once in their lifetime see topfuel dragsters live, such an impressive experience! The power of the sound and shockwaves is something else and the technical aspects are absolutly crazy aswell! By the end of the run they completly melted their glowplugs and they are essentialy dieseling/its a runaway to the end of the run until fuel gets cut off, completly mindblowing :)
Note, turbos and 4v dohc is banned in top fuel. They could be much faster, but... many tracks in the us are too short now, even @ the shortened 1000', and the NHRA does not want them to go faster. If modern engine configuration was used, tf would be much faster.
Top fuel is no joke. Those things are controlled explosions down a 1/4 mile. The first time I heard one my hands couldn't cover my ears fast enough. Power!
We need on-board footage of these speed runs. It would be epic! Also a good way for research on what all the components are going through at these speeds
Insta 360 is small and clear enough yo do it now. Camera technology has definitely gotten better since gopro came out. You couldn't fit those in small spaces.
I'm glad you are at the pod and giving it the recognition it deserves, if you live in the UK and you have never been, i 100 % recommend it, it's 100 % family orientated, it's an experience you'll never forget, just don't forget your ear defenders,
Maybe the diff blow was due to the sticky part of the road, all that 100hp was put through the diff as the wheels were locked to the road from the sticky road, maybe usually the wheels spin up a bit on normal tarmac and takes strain off the diff. love the vids!
I am almost 100% sure that the problem was too much traction, all the power suddenly went to the drive shaft which simply couldn't handle it. Under normal conditions, the wheels would spin and the power from the engines would be distributed. It's one thing to withstand the power transmission at high speed, and another thing to withstand the power at the start, especially from the electric motor which provides full torque from the very beginning. The cause of the car jumping is also too much grip, this is what a wheel behaves when it has too much grip.
Loved the ride with Terry. He sure manages to keep a loose relation between the 'front of the car' and 'direction the car is traveling'. And all during a friendly chat. Impressive.
Here in the states we use aluminium rims with proper (albeit tiny) steel belt tyres. They are filled with foam but its the only way to keep things from exploding like that.
Hey, One way to solve the problem with the exploding tires would be to increase their diameter. The centrifugal force that lets them explode decreases exponentially with increasing size (at the same speed of the car!!). In other words, the tires would tend to explode way, way less by increasing their diameter by only a small amount, even if the car is driving at the same speed. And the smaller the tire, the bigger the gain with small changes, so it's especially applicable to the rc world. Decreasing the mass of the tire would decrease the centrifugal force too, but changing the diameter has a bigger impact (because of squared values in the formulas). Of course, the gearing would have to change according to the new tire size.
Standing by the starting line as a top fuel car takes off is an experience. I'd suggest doing it at least once. Fun Fact: Top Fuel cars idle at 100+mph.
My uncles got a 1500-2000hp suppercharged outlaw car. It's awesome only thing is the motors don't stay together. 😂 fastest she has ran is a 6.90 on the "big engine" winsor and runs 7.36's with the clevo. I absolutely love working on it. Hasn't been together for 7 months becuse we have been waiting on piston sleeves and after that pistons then measure gaps and put it together
Of course we love our Mad Max! Show me a man who isn't oddly satisfied by things being destroyed in a creative manner.. like the disk of ice from a vat of water hitting the ground perfectly parallel, a car getting impaled with a large steel dart or basically anything getting squeezed to death by a hydraulic press - there are entire channels, with two-digit millions of viewers, dedicated to that. 😆
I think you are pretty on point at what happened when you lost drive. The dragstrip is so sticky that when the car hopped it sent massive shocks through the drive line every time the car landed. It's amazing that a dragstrip is still not smooth enough for a perfect top speed run! They feel like glass in a car!
Although the surface seems completely flat, it isn’t. Nothing is. IMHO, either use higher profile foam tyres, or install shocks. The car needs something to absorb the surface’s irregularities. At that speed, any tiny bump is magnified tremendously. That’s why it hops. Nice job. Keep on pushing!
A buddy of mine went to see top fuel races and I kept telling him and showing him videos about how nasty they are but yeah until you see em live it can't be described. He called me after the first run and was mind blown. He said man you told me over and over but he didn't even begin to grasp the immense raw power. It's legit like a bomb going off. One cylinder makes more power than most super cars. Heck they idle with more power than most passenger cars, and even some sports cars. Absolutely bananas
My suggestion if you are going to try a special wheel is to go to a skateboard wheel manufacturer and see if they will help you. They make hard to soft compound wheels and everything in between. I would think that a solid compound wheel would solve your problem of the rubber de laminating and the rim failing. Won't hurt to try good luck
I would try aluminium wheels with perforations on the road surface, then set into a mold allowing the foam to pass through the perforations from the road surface into the inside of the rim. Would be difficult to setup, but once done the foam no longer needs to be bonded to the wheel.
Would love to see some data logging on the normal tarmac vs the sticky tarmac on the drag strip!!! Thinking the amps and voltage drop will be massively higher on the drag strip⚠️⚡️🪫🔥 Kev please make some testing on it🙏🏻 Would really love to se how much more the setups sweat on that strip!! Thanks for the video😊
225mph is around 100m/s, so now divide per 4 to get the acceleration, u get 25 m/s². One g is around 10m/s², so this basically accelerate in average from 0 to 225mph with 2.5g force. That's crazy knowing that a standard scale 1 car accelerate at around 0.3g.
The move to larger diameter wheels is certainly a good idea. While they require more initial torque, larger diameter wheels can sustain much higher speeds.
Hi Kevin if you would increase tier radius the centripetal forces in the wheel drum would decrease, (f=m(v^2)/r). Maybe line the periphery of the rotating surface with uni directional carbon fiber band and epoxi and then put on the foam / rubber. Great content by the way.
Love the video Kev! A couple observations... Your car definitely looks too heavy for plastic wheels at those speeds and loads. Carbon fiber or aluminum wheels do sound in order. Perhaps you can afix a plastic ring outside the circumference of an aluminum wheel, then glue the rubber/foam to that plastic? The solid link instead of a spring and shock is certainly where the wear and tear on your suspension arm joints is coming from. If the arm can't pivot, it's going to try and move somewhere, and those pivots looked to be the weakest link. Perhaps go for a very strong spring and use bump-stops to prevent travel going too far. A suggestion for stopping the cars when you lose driveline or tires: rig a parachute system on another radio channel. It's how the big boys do it!
I am not sure if anyone else has covered this in the comments....but I have watched hundreds of drag racing videos from Santapod. That track as wonderful as it is for full-size cars has a fine 'washboard' surface undulation in the prepped section. I have noticed it many times when watching short wheelbase drag cars, such as Karts with bike motors. They hop about fiercely. In your video, at 21:18 you can see that washboard quite clearly. Great videos. Great fun. Please keep up the super work.
If you scuff the aluminum pretty good I bet you could get a good bond. The biggest problem seems to be the foam needs tweaked to be stronger or more dense. Hopefully a rc tire company will come up with a better high-speed compound
I think that glued section of the quarter mile is the car killer. I would run them from the other end of the track and use the glued section as part of the breaking area. Also that wind was like gale force it’s too bad the driving conditions weren’t a bit better. I think that must have been filmed in the summer right?
It's a good thing they didn't go the opposite way! 2 cars already overran the track... they would have hit the building and not been invited back. Think about when these cars blow out the tires before hitting the prepped surface... Better to hit dirt than a building / flat wall.
I know very little about RC cars but seeing how the wheels are like a "sponge" material I feel like the glue just rips the tyres off their rims, it's just too sticky.
Great video. Soo cool you guys got to run there at santa pod. Hated seeing all of the carnage though. Im a speed runner myself soo I know how crashes can be heartbreaking. My PB is 155mph soo far with an open wheel Limitless and 2028 1700kv w/ xlx2. Its all Scorched out too! Awesome parts!
@@KevinTalbotTV thanks man. Those 2028 1700s are no joke. Kinda hooked on speed running now. Im gonna turn my infraction into a GT speed car. A hobao is on my list too!
Kev have you ever considered fitting a VR camera and use a live view VR goggles for these speed runs? The reason I suggest this is because one of the big issues you speed runners seem to face is keeping the cars running straight as possible, as they become tiny in the distance and very difficult to see and "feel" what the cars are doing, because you aren't actually "in the car" so to speak? Also, I would suggest you do more work to cover the front wheels atleast, because those open wheel arches are causing all kinds of air turbulence and subsequent instability of the vehicle? I sincerely hope you get this record eventually, you've really put everything into that car, it's super impressive.
Another maybe tip.... Throttle extension. So you can more gently and precisely apply throttle. That will help with human error shock to tires and drive train.
I absolutely think the reason you are getting the bounce is because of the prepped track surface. Same thing happens to real cars when they have too much grip, it’s called wheel hop. Wreaks havoc on the driveline parts. Those little cars with all that power need to be able to have a little bit of wheel spin, I would think. Especially when accelerating early in the run.
No such thing as too much traction in drag racing. Wheel hop is caused by the driven wheels pushing forward and losing traction. On an IRS setup you see an increases in toe angle which causes the wheels to slip. Once the traction is off they snap back to their normal position, bite back in, slam forward again, rinse, repeat. It happens on live (solid) rear axles when the whole diff assembly rolls forward, compressing the lower trailing arm bushings to a point where they cannot move anymore. The sudden bump as the diff hits limits causes it to break traction, which allows the diff to fall back, wheels to bite back in, push forward again, also rinse, also repeat. The answer is always a stiffer bushing in your lower control arms (IRS) or sturdier trailing arms for live axle racers. Considering the twist visible in the lower control arms at the end of the video this is almost certainly whats happening. I would be putting a solid control arm at the front instead of a damper as Kev speculated. Hopefully he'll have a look at some drag car info for advice.
100% that's why. The prepped surface helps with traction but it also prevents the wheels from rotating by increasing rolling resistance and since it isn't consistent, you get wheel hop.
Unless your front and rear wheels are spinning at exactly the same speed you are going to hop on a surface that is super sticky. I'll bet that the single engine rear wheel drive cars didn't hop as much.
I watch a ton of car content, so its fun to watch ya have a blast inside the stunt cars and stuff. Imagine drifting like that but at 70mph downhill lol!
You got ear plugs in and “ears” on and it’s still loud AF. The camera does not do it justice but I know what it feels like and your expression is priceless Kevin. Especially when it caught you off guard…🫶🫶🫶
Kevin, you should come to the states for World Cup this year for dragracing, youd really enjoy it. Street cars going 6 seconds in the quarter mile. Its nuts.
A lot of great ideas..... the big boys use Aluminum on Salt flats..... They also use very thin tires.... and they use a very tall tire..... Scale amplifies the forces..... small bumps on the track scale to a much bigger obstacle making every increase in speed more difficult. Maximise the size of the wheel and decrease the width as much as possible.... Perhaps try Solid Urethane Wheels..... lastly.... at those relative speeds, the tire contact and vehicle control is minimal.... use active aero to stabilize, control, and steer the vehicle.... put some rudders on a servo of the rear wing..... and then elevator sandwiched in between. You can easily make molds for the Urethane wheels for minimum cost and do some testing..... Good luck and Cheers Mate
If you look at slowmotion video of racecars and dragster tires. The rubber tires have loads of flex so much you can see the wrinkle in slowmo on launch and match that with their suspension travel. Id say thats what keeps them from hopping on that prepped surface. The RC not having any suspension or flex at the wheels to absorb all that torque on such a sticky surface. It makes you wonder your wheels arent the issue of why they keep failing but maybe finding the proper surface to account for the wheel spin. Also having a lengthy run up to gradually build up the speed so all the G force isn't put on the wheel/tire so quickly just tearing it apart or so your not giving it the chance to spin the tires and make them blow out that way. But im just kind of shooting in the dark. Im not an expert and im not sure if all that makes any sense but yeah.
Hey Kev! Again, Use the rubber tape on the tires. Just use tires with no foam or rubber on them and put 2 layers of rubber tape on them. if you do it then your gonna have a world record in the bag!
WOW! what an awesome experience!!!! so many different fun things happening!!! M2C 6 LUG HUBS MADE IT THRU!!!! btw, now you know what your infraction feels like!!!! Keep it up you'll hit the goal!!!!
Carbon fiber or aluminum. You must drill holes under the rubber. So when you pour/mold the rubber it will make a rivet. A physical lock instead of a glue. Through the rim to the inside by the webbing. Bloodhound (SSC) or (LSR) and the Thrust car had to do it.
For gluing your tires to your aluminum wheels ,try talking with the guys at Locktite. That company has adhesives for any application. I was watching a RUclips video with a scientific engineer who highly recommended Locktite for anything you want to stick together forever. Here is another idea ! If the drag strip has that rubbery sticky stuff all the way to the finish line,maybe try just the aluminum wheels without tires. You could heat the wheels up with a touch or some type of heating element. Just throwing thoughts out there. Whatever you decide, hope you break the speed record this time. Best of luck mates. 👍 😊
Have you ever thought about running a split driveshaft with mid shaft bearing supports? It’s likely at that length with any small imperfection it will start wobbling! Mid span supports (bearing cradles of some sort) are super common in the real world and in RC
Remember you pinned the throttle on a drag strip. Those things as you know are sticky as hell, and by putting full throttle with ton of grip, you put too much stress onto everything. Combined with the entire car hopping around you end up with massive energy jolts onto the drive system. Might be worth it to take the car to accelerate on the normal surface and use the extra sticky only for braking
Aluminium wheels that are 2 part bolt together, you then have a foam tyre that can be pinched within the join, ideally the foam should be shaped to fit rather than pinching randomly. BUT also use glue aswell!
Absolutely epic! Santa pod is definitely the place for speed! Had me worried with that prep though! The base of the rc was never meant to see that weight/power and traction!Definitely a good idea with the shock’s Too! If it’s possible on those arms To limit torsional unloading of the control arms a pair of shocks per arm at the front and back of the tower will help reduce tramp and help keep dampen those vibrations when peeling the tyres also at that power and weight an extra trailing link or link’s from the rear of the chassis to the leading edge of the lower control arm or both will also reduce the unloading, I’d suggest going back to springs but source some seriously heavy wire! perhaps small engine valve springs or similar with heavy shock oil to suit,And for the wheels I’d go carbon fibre! the only wheels that stay on the front of my rwd speed run car are carbon/foam! It’s 1/8th scale rear drive but with a 1/10th front end, so the little wheels are properly spinning! Plastic wheels just expand or explode!
If it's a gluing issue, I'd say get some aluminum wheels, knurle the surface, bond CF as a band around it (probably help with it staying together anyway), then glue your tire to that. Those plastic jobs I don't think will ever work, unless you had some custom glass reinforced or something, but that would be a nightmare to try to make.
An idea for high speed wheels, is to find a company who is able to produce copolymer injection molded plastic. That way your wheels would be basically one piece with two densities of plastc/foam. An example of this process is those toothbrushes with grip on the handle as they are made as one piece.
That was sooo badass either way!!! The fact that you can build that like that is amazing to me!!!! I have a success Arrma Kraton, a Vee five and I think I’m awesome because I can kind of work on it! 🤣🤣
Whenever I watch your video, I always think of if you had some kind of fpv setup on car in a secure way, you could pilot the car much more safely, and avoid it from flying far away after collision at such high speeds,
Kevin. Maybe a dragchute would be useful to help stop the cars especially when you have no breaks? Just need to remember to have some bungy cord to absorb the shock of it opening. 🤔👍
Hey Kevin your going to have to make something that doesn't exist it's the InsideOut wheel and tire. if you machine an aluminum wheel with a tread design relief cut on the face of the wheel you can put a tire on the inside of the rim the tread would have to match the holes in the wheel, but the tire would then be contained in the wheel and g forces would not apply. Or have plugs that insert from the inside to give tread. Keep it up so much fun!
I think if the issue with the wheels fracturing can be overcome. By machining some solid single piece wheels. The next issue is to try and look at the layout of the internals to improve balance. Finally the down force could be tweaked to get more load on the wheels at high speed. I’d try contacting a local university engineering department to see if they have a wind tunnel and would be willing to help.
Been there in May watching them, they really have to be seen to be appreciated. They actually register about 2.4 on the earthquake ricter scale! Awesome spot to get behind the Xmas tree too, top stuff 👍
Have a suggestion with wheels & tyres blowing off, i know you want to avoid using aluminium, but if you was to use a knurling tool on the O/D giving it a solid base for the foam with glue to have a stonger bond to the textured surface
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🚗Win one of my cars raffall.com/kevin_talbot
the fact that an RC CAR can have MORE HORSEPOWER THAN SOME SMALL CARS is absolute insanity
Yup. Buying a Suzuki Cappuccino soon. Just saved up about enough for it so i'm going to be checking out some auctions. 63hp at 1550lbs.
Indeed, my last stationwagon before my current one had 100hp 😆
My current daily is a 72 220d with 59 hp.
Maybe he can use it as a skateboard..
Isn't the same
If you want to try aluminum wheels, have the surface of the aluminum prepared with a knurling tool at the machine shop. However, I think I have a better idea. At work, we use a lot of urethane and epoxy for casting, and they are quite impressive. You could have an aluminum wheel machined with channels through the diameter of the wheels, then cast urethane around the wheel. This way, the tire would be mechanically locked to the wheel.
He wont respond to logics like this , dude is not to bright with physics .
So what if he isn’t into that he probably knows stuff about rc’s than you ever will
I get the feeling you're going to run into ballooning issues there, and I think, especially with how often the current tires are being completely destroyed, it's not going to be cost effective, I think the current technology needs to be refined and I think we need to stick with plastic wheels but design them so that their structure accounts for the crazy forces that their experiencing.
How about aluminum wheels with spikes? Milled from solid
Very short spikes, so that he only gets good grip
Everybody should at least once in their lifetime see topfuel dragsters live, such an impressive experience! The power of the sound and shockwaves is something else and the technical aspects are absolutly crazy aswell! By the end of the run they completly melted their glowplugs and they are essentialy dieseling/its a runaway to the end of the run until fuel gets cut off, completly mindblowing :)
I can't imagine being RIGHT next to 2 at the starting line!
They shake you from the top of the stands!
Top fuel is awesome, the noise, the fumes, the vibration is just mental for us spectators, God knows what it's like for the driver.
Note, turbos and 4v dohc is banned in top fuel. They could be much faster, but... many tracks in the us are too short now, even @ the shortened 1000', and the NHRA does not want them to go faster.
If modern engine configuration was used, tf would be much faster.
YES! The shockwave!
I say this to as many people as possible!
Top fuel is no joke. Those things are controlled explosions down a 1/4 mile. The first time I heard one my hands couldn't cover my ears fast enough. Power!
We need on-board footage of these speed runs. It would be epic! Also a good way for research on what all the components are going through at these speeds
Exactly my thoughts. Put 2 cameras under the body to monitor driveshafts and diffs
Hé can.. better drive also with a fr
@@superfeschiRaz Schifrin does exactly that to test parts
@saransmith8773 that just proves what a good idea it is.
Insta 360 is small and clear enough yo do it now. Camera technology has definitely gotten better since gopro came out. You couldn't fit those in small spaces.
I'm glad you are at the pod and giving it the recognition it deserves, if you live in the UK and you have never been, i 100 % recommend it, it's 100 % family orientated, it's an experience you'll never forget, just don't forget your ear defenders,
Do forget ear defenders, it’s loud but that’s the experience
Maybe the diff blow was due to the sticky part of the road, all that 100hp was put through the diff as the wheels were locked to the road from the sticky road, maybe usually the wheels spin up a bit on normal tarmac and takes strain off the diff.
love the vids!
Yea I agree, far too much traction for the drivetrain to handle with all that power. Rolling start for next time Kev :)
I am almost 100% sure that the problem was too much traction, all the power suddenly went to the drive shaft which simply couldn't handle it. Under normal conditions, the wheels would spin and the power from the engines would be distributed. It's one thing to withstand the power transmission at high speed, and another thing to withstand the power at the start, especially from the electric motor which provides full torque from the very beginning.
The cause of the car jumping is also too much grip, this is what a wheel behaves when it has too much grip.
Loved the ride with Terry. He sure manages to keep a loose relation between the 'front of the car' and 'direction the car is traveling'. And all during a friendly chat. Impressive.
Here in the states we use aluminium rims with proper (albeit tiny) steel belt tyres. They are filled with foam but its the only way to keep things from exploding like that.
I have always loved drag racing, I grew up around it. I even travelled with NHRA for about 5 years. And I will never stop loving drag racing.
Hey,
One way to solve the problem with the exploding tires would be to increase their diameter.
The centrifugal force that lets them explode decreases exponentially with increasing size (at the same speed of the car!!).
In other words, the tires would tend to explode way, way less by increasing their diameter by only a small amount, even if the car is driving at the same speed.
And the smaller the tire, the bigger the gain with small changes, so it's especially applicable to the rc world.
Decreasing the mass of the tire would decrease the centrifugal force too, but changing the diameter has a bigger impact (because of squared values in the formulas).
Of course, the gearing would have to change according to the new tire size.
Been watching this project since the start. Hope you get a record! Good luck Kev!
Standing by the starting line as a top fuel car takes off is an experience. I'd suggest doing it at least once.
Fun Fact: Top Fuel cars idle at 100+mph.
My uncles got a 1500-2000hp suppercharged outlaw car. It's awesome only thing is the motors don't stay together. 😂 fastest she has ran is a 6.90 on the "big engine" winsor and runs 7.36's with the clevo. I absolutely love working on it. Hasn't been together for 7 months becuse we have been waiting on piston sleeves and after that pistons then measure gaps and put it together
Of course we love our Mad Max! Show me a man who isn't oddly satisfied by things being destroyed in a creative manner.. like the disk of ice from a vat of water hitting the ground perfectly parallel, a car getting impaled with a large steel dart or basically anything getting squeezed to death by a hydraulic press - there are entire channels, with two-digit millions of viewers, dedicated to that. 😆
I think you are pretty on point at what happened when you lost drive. The dragstrip is so sticky that when the car hopped it sent massive shocks through the drive line every time the car landed.
It's amazing that a dragstrip is still not smooth enough for a perfect top speed run! They feel like glass in a car!
Although the surface seems completely flat, it isn’t. Nothing is. IMHO, either use higher profile foam tyres, or install shocks. The car needs something to absorb the surface’s irregularities. At that speed, any tiny bump is magnified tremendously. That’s why it hops. Nice job. Keep on pushing!
Agreed.
Its 420am here in New York and kev drops a video, great stuff can't wait to how it goes. much love and respect brother!
Yeah, it is always 420 somewhere😆
@@freedom8480Sounds good but you must be high if you believe that true. 😂
I’m here in New York too but it’s not 4:20am for me, it’s 4:45am for me.🤷🏻♂️😊
@@peteroman4297true it's not 420 anymore, unfortunately it was only 420 for about a minute when I typed my comment lol 😂
Yup, ny here too. Had to see it before sleep 😂
Clicked to see the rc but stayed for the real power. That was fantastic.
it's crazy how much power those drag cars make
A buddy of mine went to see top fuel races and I kept telling him and showing him videos about how nasty they are but yeah until you see em live it can't be described. He called me after the first run and was mind blown. He said man you told me over and over but he didn't even begin to grasp the immense raw power. It's legit like a bomb going off. One cylinder makes more power than most super cars. Heck they idle with more power than most passenger cars, and even some sports cars. Absolutely bananas
Another absolutely stonking video Kev! Really loving the direction this channel is going, my eyes were glued to the screen the entire time!
Thanks fro glad you enjoyed it
@@KevinTalbotTVwhy don’t you glue ur tires
I have literally got all my cars because of your videos and how you show durability. Cheers and keep it real man
My suggestion if you are going to try a special wheel is to go to a skateboard wheel manufacturer and see if they will help you. They make hard to soft compound wheels and everything in between. I would think that a solid compound wheel would solve your problem of the rubber de laminating and the rim failing. Won't hurt to try good luck
Except skateboards are not driven by a motor. They just coast.
Everyone should go watch a nitro drag car run! It really is unbelievable
I would try aluminium wheels with perforations on the road surface, then set into a mold allowing the foam to pass through the perforations from the road surface into the inside of the rim.
Would be difficult to setup, but once done the foam no longer needs to be bonded to the wheel.
I went to the drags once. They where so loud and powerful they made my eyeballs shake.
Would love to see some data logging on the normal tarmac vs the sticky tarmac on the drag strip!!! Thinking the amps and voltage drop will be massively higher on the drag strip⚠️⚡️🪫🔥
Kev please make some testing on it🙏🏻
Would really love to se how much more the setups sweat on that strip!!
Thanks for the video😊
Watching Kev Learn the spirit of Drag Racing and Loving it! I actually drag race too! And its a blast to go 160mph at 4s in the 1/8mile
The g force must be insane on those dragsters. Going to 225 in 4 sec is absolutetly mind blowing
225mph is around 100m/s, so now divide per 4 to get the acceleration, u get 25 m/s². One g is around 10m/s², so this basically accelerate in average from 0 to 225mph with 2.5g force. That's crazy knowing that a standard scale 1 car accelerate at around 0.3g.
The move to larger diameter wheels is certainly a good idea. While they require more initial torque, larger diameter wheels can sustain much higher speeds.
Errinnt mich an Richard Hammond der gute Mann. Stabiler Bastler, danke für die wilden Videos
Hi Kevin if you would increase tier radius the centripetal forces in the wheel drum would decrease, (f=m(v^2)/r). Maybe line the periphery of the rotating surface with uni directional carbon fiber band and epoxi and then put on the foam / rubber. Great content by the way.
Exactly
Dunlop, McGuiness, Martin AND Talbot? IOM going to get crowded with superstars 🇮🇲 🇺🇸
Love the video Kev!
A couple observations... Your car definitely looks too heavy for plastic wheels at those speeds and loads. Carbon fiber or aluminum wheels do sound in order. Perhaps you can afix a plastic ring outside the circumference of an aluminum wheel, then glue the rubber/foam to that plastic?
The solid link instead of a spring and shock is certainly where the wear and tear on your suspension arm joints is coming from. If the arm can't pivot, it's going to try and move somewhere, and those pivots looked to be the weakest link. Perhaps go for a very strong spring and use bump-stops to prevent travel going too far.
A suggestion for stopping the cars when you lose driveline or tires: rig a parachute system on another radio channel. It's how the big boys do it!
I am not sure if anyone else has covered this in the comments....but I have watched hundreds of drag racing videos from Santapod. That track as wonderful as it is for full-size cars has a fine 'washboard' surface undulation in the prepped section. I have noticed it many times when watching short wheelbase drag cars, such as Karts with bike motors. They hop about fiercely. In your video, at 21:18 you can see that washboard quite clearly.
Great videos. Great fun. Please keep up the super work.
If you scuff the aluminum pretty good I bet you could get a good bond. The biggest problem seems to be the foam needs tweaked to be stronger or more dense. Hopefully a rc tire company will come up with a better high-speed compound
I'm so glad you're still working on this project. Love to see it.
I think that glued section of the quarter mile is the car killer. I would run them from the other end of the track and use the glued section as part of the breaking area. Also that wind was like gale force it’s too bad the driving conditions weren’t a bit better. I think that must have been filmed in the summer right?
Filmed about 2 weeks ago. Can’t run the other way we might hit the building
They do run drag rc cars on prepped surfaces
@@wyldcardsamare they as sticky as Santa Pod is. We did a human powered race their at bugjam. And it was very difficult to cycle on the sticky bit
It's a good thing they didn't go the opposite way! 2 cars already overran the track... they would have hit the building and not been invited back. Think about when these cars blow out the tires before hitting the prepped surface...
Better to hit dirt than a building / flat wall.
I know very little about RC cars but seeing how the wheels are like a "sponge" material I feel like the glue just rips the tyres off their rims, it's just too sticky.
my man is living his best life
Great video. Soo cool you guys got to run there at santa pod. Hated seeing all of the carnage though. Im a speed runner myself soo I know how crashes can be heartbreaking. My PB is 155mph soo far with an open wheel Limitless and 2028 1700kv w/ xlx2. Its all Scorched out too! Awesome parts!
thats epic for open wheel!
@@KevinTalbotTV thanks man. Those 2028 1700s are no joke. Kinda hooked on speed running now. Im gonna turn my infraction into a GT speed car. A hobao is on my list too!
Kev have you ever considered fitting a VR camera and use a live view VR goggles for these speed runs? The reason I suggest this is because one of the big issues you speed runners seem to face is keeping the cars running straight as possible, as they become tiny in the distance and very difficult to see and "feel" what the cars are doing, because you aren't actually "in the car" so to speak? Also, I would suggest you do more work to cover the front wheels atleast, because those open wheel arches are causing all kinds of air turbulence and subsequent instability of the vehicle? I sincerely hope you get this record eventually, you've really put everything into that car, it's super impressive.
why has this rc car have more horsepower than my irl car :(
Another maybe tip.... Throttle extension. So you can more gently and precisely apply throttle. That will help with human error shock to tires and drive train.
Kevin's gonna end up building his own drag car to park next to the monster truck, I just know it.
This car needs to become a 6-wheeler and get that WR. More POWER & MORE TIRES!
This man is keeping my bank account empty. Thanks kev 😂
I absolutely think the reason you are getting the bounce is because of the prepped track surface.
Same thing happens to real cars when they have too much grip, it’s called wheel hop. Wreaks havoc on the driveline parts.
Those little cars with all that power need to be able to have a little bit of wheel spin, I would think. Especially when accelerating early in the run.
No such thing as too much traction in drag racing.
Wheel hop is caused by the driven wheels pushing forward and losing traction. On an IRS setup you see an increases in toe angle which causes the wheels to slip. Once the traction is off they snap back to their normal position, bite back in, slam forward again, rinse, repeat. It happens on live (solid) rear axles when the whole diff assembly rolls forward, compressing the lower trailing arm bushings to a point where they cannot move anymore. The sudden bump as the diff hits limits causes it to break traction, which allows the diff to fall back, wheels to bite back in, push forward again, also rinse, also repeat.
The answer is always a stiffer bushing in your lower control arms (IRS) or sturdier trailing arms for live axle racers. Considering the twist visible in the lower control arms at the end of the video this is almost certainly whats happening. I would be putting a solid control arm at the front instead of a damper as Kev speculated. Hopefully he'll have a look at some drag car info for advice.
100% that's why. The prepped surface helps with traction but it also prevents the wheels from rotating by increasing rolling resistance and since it isn't consistent, you get wheel hop.
Maybe alloy lower arms?
@@KevinTalbotTV no, just stay off the prepped surface, it's also weakening your foam.
Race tracks are finally getting smart and bringing in influencers to help promote the track.
Unless your front and rear wheels are spinning at exactly the same speed you are going to hop on a surface that is super sticky. I'll bet that the single engine rear wheel drive cars didn't hop as much.
I watch a ton of car content, so its fun to watch ya have a blast inside the stunt cars and stuff. Imagine drifting like that but at 70mph downhill lol!
You got ear plugs in and “ears” on and it’s still loud AF. The camera does not do it justice but I know what it feels like and your expression is priceless Kevin. Especially when it caught you off guard…🫶🫶🫶
Who let Max out of daycare? Boy follows Kevin around like a lost pup
salty boy jealous you dont have any cool friends
The percussion from a Top Fuel Car off the line definitely stands you in place!
Is way too heavy bro
It has 100 hp the weight don’t mean shit
Kevin, you should come to the states for World Cup this year for dragracing, youd really enjoy it. Street cars going 6 seconds in the quarter mile. Its nuts.
I'd love to see Kev build a drag car - maybe not jump into top fuel/funny cars but maybe Super Comp or Street Eliminator
omg i was thinking the same. maybe pro alcohol. we know he wants a loud car haha.
It would be cool if your group of speed runners could put on an exhibition intro as part of the actual show! 💡
that would be fun!
You are so lucky, to stand in the middle of the top fuel dragster’s that’s a dream come true!
Dude, this was really fun to watch. I watched it for ten minutes before I even remembered what I was watching.
Kudos to whoever drives/controls that Firestorm car/land jet.
Good to see the free loader is there again . Even rc mann has clocked max and his agenda
A lot of great ideas..... the big boys use Aluminum on Salt flats..... They also use very thin tires.... and they use a very tall tire..... Scale amplifies the forces..... small bumps on the track scale to a much bigger obstacle making every increase in speed more difficult. Maximise the size of the wheel and decrease the width as much as possible.... Perhaps try Solid Urethane Wheels..... lastly.... at those relative speeds, the tire contact and vehicle control is minimal.... use active aero to stabilize, control, and steer the vehicle.... put some rudders on a servo of the rear wing..... and then elevator sandwiched in between. You can easily make molds for the Urethane wheels for minimum cost and do some testing..... Good luck and Cheers Mate
If you look at slowmotion video of racecars and dragster tires. The rubber tires have loads of flex so much you can see the wrinkle in slowmo on launch and match that with their suspension travel. Id say thats what keeps them from hopping on that prepped surface. The RC not having any suspension or flex at the wheels to absorb all that torque on such a sticky surface. It makes you wonder your wheels arent the issue of why they keep failing but maybe finding the proper surface to account for the wheel spin. Also having a lengthy run up to gradually build up the speed so all the G force isn't put on the wheel/tire so quickly just tearing it apart or so your not giving it the chance to spin the tires and make them blow out that way. But im just kind of shooting in the dark. Im not an expert and im not sure if all that makes any sense but yeah.
Hey Kev! Again, Use the rubber tape on the tires. Just use tires with no foam or rubber on them and put 2 layers of rubber tape on them. if you do it then your gonna have a world record in the bag!
Loving those legend cup cars, I'd of liked to of raced them yrs ago when I did Caterham.
Nice to see Mark the graveyard channel guy there.
Racing down, one of these drag strips is actually what I do. I have a lot of fun doing it.
WOW! what an awesome experience!!!! so many different fun things happening!!! M2C 6 LUG HUBS MADE IT THRU!!!! btw, now you know what your infraction feels like!!!! Keep it up you'll hit the goal!!!!
I can see the world's Best Truck in the Background and Love the colour
Carbon fiber or aluminum. You must drill holes under the rubber. So when you pour/mold the rubber it will make a rivet. A physical lock instead of a glue. Through the rim to the inside by the webbing. Bloodhound (SSC) or (LSR) and the Thrust car had to do it.
For gluing your tires to your aluminum wheels ,try talking with the guys at Locktite. That company has adhesives for any application. I was watching a RUclips video with a scientific engineer who highly recommended Locktite for anything you want to stick together forever. Here is another idea ! If the drag strip has that rubbery sticky stuff all the way to the finish line,maybe try just the aluminum wheels without tires. You could heat the wheels up with a touch or some type of heating element. Just throwing thoughts out there. Whatever you decide, hope you break the speed record this time. Best of luck mates. 👍 😊
Have you ever thought about running a split driveshaft with mid shaft bearing supports?
It’s likely at that length with any small imperfection it will start wobbling! Mid span supports (bearing cradles of some sort) are super common in the real world and in RC
I think he's put that in recently
Kev, I was thinking you guys should run mini drag chutes. Would save everyone!
kev you need to start a drag build like this if you want kev to make a rc drag build
Great video Kev, Terry Grant is a top bloke and not to metion one of the best precision stunt drivers on the planet
yeah hes a great guy
Remember you pinned the throttle on a drag strip. Those things as you know are sticky as hell, and by putting full throttle with ton of grip, you put too much stress onto everything. Combined with the entire car hopping around you end up with massive energy jolts onto the drive system. Might be worth it to take the car to accelerate on the normal surface and use the extra sticky only for braking
Thank you for showing people this side of the world drag racing is everything lol
Aluminium wheels that are 2 part bolt together, you then have a foam tyre that can be pinched within the join, ideally the foam should be shaped to fit rather than pinching randomly. BUT also use glue aswell!
car is porpoising on flat surface 100%
Absolutely epic! Santa pod is definitely the place for speed! Had me worried with that prep though! The base of the rc was never meant to see that weight/power and traction!Definitely a good idea with the shock’s Too! If it’s possible on those arms To limit torsional unloading of the control arms a pair of shocks per arm at the front and back of the tower will help reduce tramp and help keep dampen those vibrations when peeling the tyres also at that power and weight an extra trailing link or link’s from the rear of the chassis to the leading edge of the lower control arm or both will also reduce the unloading, I’d suggest going back to springs but source some seriously heavy wire! perhaps small engine valve springs or similar with heavy shock oil to suit,And for the wheels I’d go carbon fibre! the only wheels that stay on the front of my rwd speed run car are carbon/foam! It’s 1/8th scale rear drive but with a 1/10th front end, so the little wheels are properly spinning! Plastic wheels just expand or explode!
KEV... make the wheels aluminum and the tyres use brake pad material - high speed composite material (FORGET THE FOAM) think outside the box on this
If it's a gluing issue, I'd say get some aluminum wheels, knurle the surface, bond CF as a band around it (probably help with it staying together anyway), then glue your tire to that. Those plastic jobs I don't think will ever work, unless you had some custom glass reinforced or something, but that would be a nightmare to try to make.
Nothing sounds better than a hemi power funny car
An idea for high speed wheels, is to find a company who is able to produce copolymer injection molded plastic. That way your wheels would be basically one piece with two densities of plastc/foam. An example of this process is those toothbrushes with grip on the handle as they are made as one piece.
That was sooo badass either way!!! The fact that you can build that like that is amazing to me!!!! I have a success Arrma Kraton, a Vee five and I think I’m awesome because I can kind of work on it! 🤣🤣
Whenever I watch your video, I always think of if you had some kind of fpv setup on car in a secure way, you could pilot the car much more safely, and avoid it from flying far away after collision at such high speeds,
Greatest 4 sec adrenaline rush you'll ever experience.
I think it was the sticky surface making the cars 'judder'.
You should build a portable net the can catch the RC Cars at the end of the strip. So they don't break so easily, or at least minimize the damage.
car on the tires🔥 8:34
Seen that last vid… of you asking about other content…. & then this….Stick with it dude…!!
This is the why you got where you are….👍
Kevin. Maybe a dragchute would be useful to help stop the cars especially when you have no breaks?
Just need to remember to have some bungy cord to absorb the shock of it opening. 🤔👍
Hey Kevin your going to have to make something that doesn't exist it's the InsideOut wheel and tire. if you machine an aluminum wheel with a tread design relief cut on the face of the wheel you can put a tire on the inside of the rim the tread would have to match the holes in the wheel, but the tire would then be contained in the wheel and g forces would not apply. Or have plugs that insert from the inside to give tread. Keep it up so much fun!
love drag racing, havnt been to santa pod for years, all ways had a great time their.
I like max I feel like he makes the videos more entertaining 😭
I think if the issue with the wheels fracturing can be overcome. By machining some solid single piece wheels. The next issue is to try and look at the layout of the internals to improve balance. Finally the down force could be tweaked to get more load on the wheels at high speed.
I’d try contacting a local university engineering department to see if they have a wind tunnel and would be willing to help.
Been there in May watching them, they really have to be seen to be appreciated. They actually register about 2.4 on the earthquake ricter scale! Awesome spot to get behind the Xmas tree too, top stuff 👍
Have a suggestion with wheels & tyres blowing off, i know you want to avoid using aluminium, but if you was to use a knurling tool on the O/D giving it a solid base for the foam with glue to have a stonger bond to the textured surface
Great video of WIND NOISE mate