I love that kid, he's super smart and passionate, and Kev talking to him like an adult is awesome to see. I think a lot of times grownups don't give kids enough credit and talk to them a bit like they're not equal.
@@creamyhummus That is actually the best way to get to a kid is to treat them as an equal. Coming from a guy who worked for foster parent's doing part time counseling for children. I have heard some horrible stuff coming out of foster kids once they realize that you are there to help them and are not 'just another adult'.
You need the rear end downforce. Otherwise it will spin. I have faced that problem. Just add a rear diffuser, if you donot want the drag caused by the rear spoiler. Best of luck. Love from India
Thank you Mr Kev. I'm running 3 of these around a velodrome here in Australia. Cars run for 15mins at full throttle. 2s 5000mAh 1. 3650/3500kv = 80kph 2. F 540 v2. 4370kv = 85kph 3. 3650/5200kv. = 92kph You have been a great inspiration to the Talbot crew downunder.
Even without downforce it could still, in theory, affect handling. It could affect the rotational speed, so for example when it wants to swap ends on him, it's less likely. Pay attention to the wing design on his other speed build. Tall wing, no downforce.
One problem I’ve noticed is when the ref reach a certain speed it spin out so since the wing is flat it can either create negative lift or positive lift, in conclusion the front isn’t griping toward the ground and causing the front to be light or less grip then the rear
Correct. If you chuck a bit between the two, Milwaukee will out torque Dewalt, and after destroying the Dewalt, it will keep running reliably. The battery system in Dewalt is nice, though. Those 60v packs are good to have in the shop.
@@_M_a_r_t_i_n_M Yeah you really can't rely on having just a flat surface if air can go above and below it. The angle of the car is then going to determine if it's making lift or downforce. He at least needs to put some sort of a kick up on the trailing edge to give it enough downforce to keep it stable. Looks like every time it got up around 60mph the rear end wanted to come around like it was on ice.
@@kasuraga true, it’s probably making downforce due to attack angle right up until it hits a certain speed, then once the rear is lower than the front the attack angle switches to generating lift and it spins.
so basically the rear wing is flat sitting still, but I suspect the front lifts while the rear end sinks which would point the rear wing down to the ground slightly creating lift, thus spinning out, the rear seemed like it was a bit soft and low, so he's gonna have to either give that wing some positive angle or raise the rear end up with with some thicker springs/tighter. Either way its a mixture of imbalance in the overall form of the rc, with the larger battery, the foam wheels, the wing and the suspension set up as well as the size of the rc. I also suspect the rears are locked up while the fronts might have a bit of play to them with the silicon plugs so more power is getting sent to rear effectively pushing its own self into a spin.
Try stiffer springs and running higher rake, so the back is higher than the front. This increases the area the air needs to fill effectively sucking the car to the ground with no added drag
New subscriber! Kevin is so happy and fun to watch. He literally puts you in a better mood. I wish I could afford all the fun stuff. He has probably worked his ass off to get where he is now. Congratulations Kevin! Keep it up! From Texas
If it helps, my 100mph 124019, I have stiffened the shocks, lowerd the front, raised the rear (not to far) I have a massive wing for stability and a slight wing lip for a bit of downforce. Same body etc..
In physics, an object always wants to have the center of weight in front of the center of drag, so if this car is turning round then it may mean the center of weight is in back of the car and somehow the center of drag is at the front. It can also be tire setup, so I think the camber and toe adjustments can be played with.
@@stevengao9568 oh, ok thanks, I am building my own speedrun car, and it got a bit wobbly today. I am going to 3D print a more agressive wing or the back
I honestly can't tell you how happy I am to hear you mention the X01 jump Kev!! So awesome hahah Also Milwaukee Tools are top notch! Dewalts not terrible but all we buy at work is Milwaukee 👍
It may be a bit late, but if you want to use plastic that can be heated and bent, but isn't too brittle, you could try sheets of ABS. I used it quite a bit in custom applications for car audio back in the day. We frequently used the 1/8" and 3/16" sheets. It's pretty tough but a heat gun makes it bendable and it will hold its new shape. You can sand the thicker stuff to a sharp edge if you need to, for aerodynamics.
1.Try to completley lock the diffs up (because when it hits bumps on the surface , one wheel is gonna catch air and will get more power than the others, and when it touches the ground again it will spin faster than the others and will make the car spin) 2. Put harder oil in the shocks (the soft bottoms out and as it hits the floor it will make the car unstable) 3.Put harder springs in it (so when the shocks compress it doesnt take such long time to get to a normal position again) 4.definetley put a wing with some degree on it, the big 200mph goes straight because its heavy and the body has a lot of downforce. but this is a small and light car, so a wing makes a big difference 5. move the shock position to make the shock less straight but the main thing will be the wing. that turning effect was so big, it gotta be the wing
You need to limit the travel of the rear shocks to keep the tire angle flat. When the car gets to speed, the rear shocks are compressed causing the tire angle to change. Also, put some weight on the front end to balance the center of gravity. However so slightly, most of your weight is distributed towards the rear which also adds to the compression of your rear shocks.
What do you mean “tire angle”? This suspension has both upper and lower control arms… Weight distribution or “center of gravity” doesn’t matter a ton during longitudinal acceleration, as all the weight is shifted to the rear anyway.
Hi Keen, I'm pretty sure you made the rear diff too stiff with the silicon ear plug that's why it is swapping ends like an old car with positraction, Also you need to add more rears toe in and front toe in. You will lose a little speed not much but it will hold a straight line and not swap ends. Try running 40k front 20k rear and 50k center diff. Foam tires are really only for prepped surfaces. spray brake cleaner on the foam tires as it will increase traction. Hope this helps. Just some of my personal experience from racing 1/8 scale on road cars. We hit speeds in the 70 mph range on the short-back straightaways. Anyway, you usually figure it out. I hope you get back to the 205 mph car. I miss that build serious and tests. My favorite videos of yours are the wrenching on the bench going out testing changes and your Monster Truck. You're a Legend, buddy.
difussing the air around the back of the car is key. what is happening is a low pressure zone behind the rear of the care at speed this then reduces the traction of the rear tires causing them to spin faster and during a moment of traction on a rough surface they spin the care around. you NEED to have zero pressure or some possitive pressure on the rear end. During acceleration keeping the front end down is good which you thought of early on in the first video I believe. The trouble is you need continue thinking of what forces are happening on the care at different speeds : ) your life is amazing and I love you. Please tell me you're not on adderall or some other stimulant, only your life and how you have directed it as the propellant. Thank you for all you content, your editing is fantastic.
the reason why the car keeps swapping ends because you put silicone earplugs in the diff, which locks it up and you lose all of your rear end traction. if you want traction you need to go for really thin diff and shock oils, like 3k rear, 5k centre, 5k front and you will have plenty of traction.
I recommend you this tips for all the high speed cars, this tips are all to make the car more stable , less top speed but more stable and more downforce so that it stops spinning which is going to end up being faster : - front as low as posible and rear as high as possible - don’t put a flat rear wing because that makes the car way too unstable and if you are going to put it flat then better take it off it is just more weight that works for nothing - take all the extra things that you can away and always try to find the lightest ones if they are necessary - and use a stiffer suspension
for the plastic you asked for at the end, get some kydex! it’s so easy to work with and i’ve made countless things with it and it’s not brittle at all, super nice stuff and it starts deforming pretty low temp so you can hold it in place with your hands and it cools and holds its shape really quickly
C of G too far backwards, forwards mass wants to be at the front. hence it keeps swapping directions figure out a way to make the C of G further forward than the middle of the car
Hola Javi, excelente video, es usted un master, no solo vende coches increíbles sino que también los mejora antes de entregar a sus clientes, sin duda usted piensa más allá de tan solo la venta de un coche.
It’s trying to plane What this means is that it’s creating a cushion of air for the car to glide on. The reason it spins so easily is because when you go in reverse it creates a vacuum that pulls it towards the ground. The way to fix this is create an air escape in the frame. Or lift up the back end. While also making the rear suspension very stiff. With cushiony tires to absorb the bumps.
I don't know if anybody has suggested this yet, but it could be the torque backing off of the two differentials. From front to back it puts a twist under torque, and then a backwards twist when you let off of the torque. Causes the car to spin
@@danwitavan5146 only on high traction smooth surfaces. A crawler is the exception because your trying to get maximum power to each wheel. He would have been better using actual diff oil, even if it was thicker than stock.
Where I work we have had a few Dewalt impacts break badly and needed to be scrapped and with the years we have used Milwaukee we haven’t had any issues. My dad still has a Milwaukee M18 before they were fuels and it works flawlessly
With the same model, I put the bottom back suspension mounts on the screw hole closer to the middle. This lifts the back with can prevent the car from flipping over and I believe can make that wing off yours useful. Hope this helps!
its spinning because the rear is now heavier, so any left or right momentum spins the car, the rear fin stops the car spinning when it reaches to the front, because of the air flow. regarding the 203hp project, drag cars have a wheelie bar to stop flipping, and bigger rear wheels for more torque. Also would recommend, more foam on the wheels, and smaller rims.
hey kevin the steering servo on my baja 5t has recently broke and i was wondering if the heaver steering servos were better or worse that the lighter steering servos
Portercable best power tools. You need a splitter mate. For front down force. At around 65mph (first known wind velocity where efficiency becomes a factor. From 50-65 the aero becomes exponentially more or less efficient. The next wind barrier is 85mph then after that it’s 120) cheers
The diffuser doesn't create downforce persay but a vacuum underneath the car. You want the front end low as possible. And you want the diffuser to funnel the air to a more narrow channel at th back end o the car between the rear wheels. That accelerates the air leaving the back of the car and creates the vacuum that holds your car down. I learned all this for actual cars
If you want my opinion, I think you have to use rubber tires rather than foam tires. I know nothing about RC cars, but I think that rubber tires would significantly improve grip, which would make the car slip less. Hope this helps 😀
It might be because when the rear squats due to the body's downforce at speed, the rear wing you made will cause lift due to its angle of attack. That little guy was actually on the right track...smart kid!
Saw some videos of this guy and he cant stop spending money and collect stuff, but he do that in such a natural way... He has his room plenty of expensive stuff and he is so indifferent to all that I feel stupid being poor
Back end squats. Makes the wing no longer flat and gives the opposite of downforce. Angle it some. Give it a bit of downforce. Check the shock travel and make sure it stays in the “downforce” position throughout
Kev, pls add camber to rear wheels. also make sure that the front camber is good and you have down force for the rear. Keep building that monster truck!
It's the wing you made is to much weight, so it makes it switch ends. I would suggest using a plastic wing with a little more thickness then the original wing. I've done this and works perfectly. I used a heat gun to bend the plastic, and have a 3D printed wing.
Taken a look at your rear wing I would say it has some buoyancy. Lower the front as Johnny said, give the rear wing a small amount of angle. 3-5°... This should help keeping the car down. Keep in mind that aerodynamics tend to lift the car if your wing has no downforce. This results in a light back and let's your car spin.
i personally use these 5200kv 3650 things. they usually explode at topspeed with 4s. DONT REV IT OFF THE GROUND KEV!!! just dont. the rotors explode. i've killed 5 of them already. but the provide good power and work perfectly on 3s.
smear some white woodglue on the tires. Not waterproof. let it dry. When they heat up the "stick" to the asphalt. Drives way better. tested it some years ago.
You need to consider rocket science when you make a land rocket. I suspect that the CG is too far back and it is acting like a rocket when you let up on the throddle and the heavy rear is whipping around after apogee ; ) love your energy, brother. Maybe let your son narrate an entire video? That would be fun.
HDPE is what I would use as the bottom plate, but it would require a stiffener. They use HDPE on Kayaks and coolant bottles, you can plastic weld it with a heat gun and you will be able to shape it however you desire.
The homemade wing has considerably more mass than the stock wing. Since all that mass is behind the rear axle, it acts as a counterweight to the front end. Either go back to the stock wing, or add a proportional amount of weight to the middle/front of the car. All the extra wing weight is also why the back rides low and the suspension seems too soft.
Try using kydex, or delrin. Kydex is what I use for skid plates, holsters, mud guards and wings. Also try adding weight to the front. Will help plant the front to the ground for tracking and steering.
the car has to be 4 wheel drive if it is then try a 2 wheel drive and another reason is beacuse that the wheels is to fast so when flat out it will like pick up in the air hope this helped Ohh and i liked 😀😀😀😀😀😀
Inspiration taken from Le Mans (the film) attach some bits of string all over the car with some tape, blow air over the car and notice how the string reacts, you want the string to be as calm as possible off the back end of the car. If the string is flapping about like crazy means you’ve got rather dirty air which as there’s next to no weight for traction, could be the source of the instability
For the underbody of the 200mph project you should try to use PEHD , it's super easy to work with and it's absolutely unbreakable ( To give you an idea , the Russian unbreakables bodies are made of PEHD )
I'd recommend a cutting board for the underside since there ment to be abused and cheep. If you can get a set of tires made of gum rubber I'd bet they would serve well. Super cool stuff .
You need to expand the chasis to fill the gap between front and back wheels at the sides. You also need to balance weight by setting two batteries, one on each side on top of that expansion, probably outside the body of the car each as they won't fit inside, finally lower suspension is better, see sports cars.
Should lock the front diff and leave the rear open. The car overall doesn't provide enough downforce and with the shape of the rear of the body and the angle of the wing, it might actually be decreasing the rear end downforce. Each wing, canards and the shape of the body need to line up to channel the air and not disrupt the air flow.
Kev- has box that says fragile and probably took a few weeks to arrive. Also kev- slams box on table. This shows that kev uses his cars for EXTREME BASHING and honestly doesn’t care what happens to them as long as he is having fun. 😂
The metal wing added too much weight to the rear end, causing it to swap ends. Think of an RC plane, where the heavy stuff is up front and the lightweight tail just drags behind. With very little downforce, at higher speeds that car is basically an RC plane as it bounces off the bumps.
That little kid was giving you some top notch advice dude. It's awesome when you see the younger generations getting into the RC hobby.
I love that kid, he's super smart and passionate, and Kev talking to him like an adult is awesome to see. I think a lot of times grownups don't give kids enough credit and talk to them a bit like they're not equal.
Totally agree with the kid aswell
@@creamyhummus That is actually the best way to get to a kid is to treat them as an equal. Coming from a guy who worked for foster parent's doing part time counseling for children. I have heard some horrible stuff coming out of foster kids once they realize that you are there to help them and are not 'just another adult'.
And they are all smarter than we tend to give them credit for. We need to think back to our own childhoods at times.
true!
You need the rear end downforce. Otherwise it will spin. I have faced that problem. Just add a rear diffuser, if you donot want the drag caused by the rear spoiler. Best of luck. Love from India
Hii I am an Indian too and I wnat to know that where you went to do the speedrun
@@sandeepsagarbehera8122 it's in the uk
@@harryblox760 the guy literally said hes in india
You also need front down force to help with cornering if doing so
@@alloy0455 why waste your time ? He'll tell you no need for down force... just more power !!!! LOL
That rear wing looks like it would create lift with its angle. Maybe take it off or angle it for more down force.
Thank you Mr Kev.
I'm running 3 of these around a velodrome here in Australia.
Cars run for 15mins at full throttle.
2s 5000mAh
1. 3650/3500kv = 80kph
2. F 540 v2. 4370kv = 85kph
3. 3650/5200kv. = 92kph
You have been a great inspiration to the Talbot crew downunder.
@Zombed The Man no brother
I thought I was the only Aussie
@@NTfishingadventures nah cuz.
Heaps ov us.
Aussie, Aussie, Aussie
Yeah, nah, yeah
for the 3500 kV what volt are you running
You've got to ask yourself, "What exactly is that wing doing?"
Even without downforce it could still, in theory, affect handling. It could affect the rotational speed, so for example when it wants to swap ends on him, it's less likely. Pay attention to the wing design on his other speed build. Tall wing, no downforce.
You have some holes in the arms, put some screws in and lower it as low as possible. We did the 1/14 Wltoys and hit 78mph on 3S so far
moin Johnny feier deine Videos übelst👌🙃
Haha ich auch das du hier kommentiert hast Johnny is ja cool ich Feier deine Videos auch so
Hi Legende!
Hi Johnny
Er fährt mit dem Ding solange falsch bis es wieder kaputt ist deshalb schaue ich lieber deine Videos
parcel: fragile
Kev: throws it onto his table
Yeah but I'm sure the postie did worse :P
More Powerrr!!! Kev Talbot, RC's answer to Jeremy Clarkson! 😂
Hammond!
You mean Tim Taylor
One problem I’ve noticed is when the ref reach a certain speed it spin out so since the wing is flat it can either create negative lift or positive lift, in conclusion the front isn’t griping toward the ground and causing the front to be light or less grip then the rear
Rear diffuser would fix it
DeWALT impact has never let me down even when they are half broken. Milwaukee is impressive but all around hands-down both are great power tools.
DeWalt is the best
I can back you up on that one yellow and black for life
Hands down Milwaukee. Ask any one that uses power tools for a living.
Z fuel
Facts
True Milwaukee fuel works better than dewalt
Correct. If you chuck a bit between the two, Milwaukee will out torque Dewalt, and after destroying the Dewalt, it will keep running reliably. The battery system in Dewalt is nice, though. Those 60v packs are good to have in the shop.
Between the two of them Milwaukee, but craftsman is fairly inexpensive and we haven’t had a problem out of them yet
You might wanna put some angle on the wing. I'm wondering if at speed that wing is producing a bit of lift and causing the rear end to spin out.
That was exactly my thought. It was not acting as an inverted airfoil like it is supposed to. It is just a flat surface..
@@_M_a_r_t_i_n_M Yeah you really can't rely on having just a flat surface if air can go above and below it. The angle of the car is then going to determine if it's making lift or downforce. He at least needs to put some sort of a kick up on the trailing edge to give it enough downforce to keep it stable. Looks like every time it got up around 60mph the rear end wanted to come around like it was on ice.
@@kasuraga true, it’s probably making downforce due to attack angle right up until it hits a certain speed, then once the rear is lower than the front the attack angle switches to generating lift and it spins.
so basically the rear wing is flat sitting still, but I suspect the front lifts while the rear end sinks which would point the rear wing down to the ground slightly creating lift, thus spinning out, the rear seemed like it was a bit soft and low, so he's gonna have to either give that wing some positive angle or raise the rear end up with with some thicker springs/tighter. Either way its a mixture of imbalance in the overall form of the rc, with the larger battery, the foam wheels, the wing and the suspension set up as well as the size of the rc. I also suspect the rears are locked up while the fronts might have a bit of play to them with the silicon plugs so more power is getting sent to rear effectively pushing its own self into a spin.
@@Blaquer17 Yea! That must be it. Nice analysis guys.
I can’t wait for the x01 to go to the moon! That baby’s gonna fly!!
oh ya it is
Try stiffer springs and running higher rake, so the back is higher than the front. This increases the area the air needs to fill effectively sucking the car to the ground with no added drag
New subscriber! Kevin is so happy and fun to watch. He literally puts you in a better mood. I wish I could afford all the fun stuff. He has probably worked his ass off to get where he is now. Congratulations Kevin! Keep it up! From Texas
Texas gang 😆🤘
Fully agree!
If it helps, my 100mph 124019, I have stiffened the shocks, lowerd the front, raised the rear (not to far) I have a massive wing for stability and a slight wing lip for a bit of downforce. Same body etc..
More or less the same I did to mine.
I did swap the springs for some harder ones.
I'll bet this would work.
In physics, an object always wants to have the center of weight in front of the center of drag, so if this car is turning round then it may mean the center of weight is in back of the car and somehow the center of drag is at the front. It can also be tire setup, so I think the camber and toe adjustments can be played with.
Rate
Good point
if he adds downforce at the back, will the center of drag be pushed furthur back?
@@lukebajuke4358 Yes, but you want the center of drag to be further back and the center of weight to be as front as possible
@@stevengao9568 oh, ok thanks, I am building my own speedrun car, and it got a bit wobbly today. I am going to 3D print a more agressive wing or the back
I love how the package said fragile and kevin just trows it
Hahaha
The sad part is that they won't be treated any better by the post service..
I honestly can't tell you how happy I am to hear you mention the X01 jump Kev!! So awesome hahah Also Milwaukee Tools are top notch! Dewalts not terrible but all we buy at work is Milwaukee 👍
It may be a bit late, but if you want to use plastic that can be heated and bent, but isn't too brittle, you could try sheets of ABS. I used it quite a bit in custom applications for car audio back in the day. We frequently used the 1/8" and 3/16" sheets. It's pretty tough but a heat gun makes it bendable and it will hold its new shape. You can sand the thicker stuff to a sharp edge if you need to, for aerodynamics.
That car looks awesome for the price of it! You need the rear end downforce
"The motors turned up! I ordered 4, but only 2 came."
Only Kevin can be bamboozled by the postman and still be positive about it.
Me: "Kev, why do you have 5+ impact drivers and so many electric saws?
Kev: "uh, well, you see.."
he is probably like me and has a tool addiction. I have between 6 and 8 of nearly every dewalt 20v tool and still catch myself looking at new ones.
1.Try to completley lock the diffs up (because when it hits bumps on the surface , one wheel is gonna catch air and will get more power than the others, and when it touches the ground again it will spin faster than the others and will make the car spin)
2. Put harder oil in the shocks (the soft bottoms out and as it hits the floor it will make the car unstable)
3.Put harder springs in it (so when the shocks compress it doesnt take such long time to get to a normal position again)
4.definetley put a wing with some degree on it, the big 200mph goes straight because its heavy and the body has a lot of downforce. but this is a small and light car, so a wing makes a big difference
5. move the shock position to make the shock less straight
but the main thing will be the wing. that turning effect was so big, it gotta be the wing
You need to limit the travel of the rear shocks to keep the tire angle flat. When the car gets to speed, the rear shocks are compressed causing the tire angle to change. Also, put some weight on the front end to balance the center of gravity. However so slightly, most of your weight is distributed towards the rear which also adds to the compression of your rear shocks.
What do you mean “tire angle”? This suspension has both upper and lower control arms…
Weight distribution or “center of gravity” doesn’t matter a ton during longitudinal acceleration, as all the weight is shifted to the rear anyway.
The motor is enough for lego, cant wait to see a lego car moving 100 mph in a city lol
Been waiting for this!
Excited for that xo1 to go to the mooooon!!!!
Love your vids Kev!
Did he ever send it to the moon? Been scanning through his videos but can't find a video of him ever doing it
This thing is driving like how a 2wd rustler does when you press the brakes. 😂
Hi Keen, I'm pretty sure you made the rear diff too stiff with the silicon ear plug that's why it is swapping ends like an old car with positraction, Also you need to add more rears toe in and front toe in. You will lose a little speed not much but it will hold a straight line and not swap ends. Try running 40k front 20k rear and 50k center diff. Foam tires are really only for prepped surfaces. spray brake cleaner on the foam tires as it will increase traction. Hope this helps. Just some of my personal experience from racing 1/8 scale on road cars. We hit speeds in the 70 mph range on the short-back straightaways. Anyway, you usually figure it out. I hope you get back to the 205 mph car. I miss that build serious and tests. My favorite videos of yours are the wrenching on the bench going out testing changes and your Monster Truck. You're a Legend, buddy.
difussing the air around the back of the car is key. what is happening is a low pressure zone behind the rear of the care at speed
this then reduces the traction of the rear tires causing them to spin faster and during a moment of traction on a rough surface they spin the care around. you NEED to have zero pressure or some possitive pressure on the rear end. During acceleration keeping the front end down is good which you thought of early on in the first video I believe. The trouble is you need continue thinking of what forces are happening on the care at different speeds : ) your life is amazing and I love you. Please tell me you're not on adderall or some other stimulant, only your life and how you have directed it as the propellant. Thank you for all you content, your editing is fantastic.
you need more down force on the rear, try bending the wing to keep rear end sticked to the floor, you are loosing traction and that's why the rc spins
Having fun is all that matters kev, great video,
Just got one of those Milwaukee 3/8" stubby guns this past week they're pretty great
the reason why the car keeps swapping ends because you put silicone earplugs in the diff, which locks it up and you lose all of your rear end traction. if you want traction you need to go for really thin diff and shock oils, like 3k rear, 5k centre, 5k front and you will have plenty of traction.
I recommend you this tips for all the high speed cars, this tips are all to make the car more stable , less top speed but more stable and more downforce so that it stops spinning which is going to end up being faster :
- front as low as posible and rear as high as possible
- don’t put a flat rear wing because that makes the car way too unstable and if you are going to put it flat then better take it off it is just more weight that works for nothing
- take all the extra things that you can away and always try to find the lightest ones if they are necessary
- and use a stiffer suspension
I assume it’s your homemade rear wing causing end swapping issue!
Yes lol the wing installed prob weighs more then the car.
Agree, should have added some downforce on that
Yeah,looks too flat. Needs angle to it
Kev when will the world's fastest Rc car 202 Mph. I can't wait for you to beat the world record!
As if that's ever going to happen. ;)
Well i hope that he will beat it
@@_Jester_ He’s miles away, but I love watching him try.
A locked or nearly locked rear diff will be more tail happy, maybe open it up a bit
Would try putting a heavier diff oil in rather than the silicone ear plugs
Yep, been there done that, mine was at 50mph on grass/gravel, removed spool and instantly better.
5:29 that sounded like a Lamborghini Huracàn.
for the plastic you asked for at the end, get some kydex! it’s so easy to work with and i’ve made countless things with it and it’s not brittle at all, super nice stuff and it starts deforming pretty low temp so you can hold it in place with your hands and it cools and holds its shape really quickly
Get the same wing a put it on the front bc when in reverse it was at the front and it was going straight
C of G too far backwards, forwards mass wants to be at the front. hence it keeps swapping directions
figure out a way to make the C of G further forward than the middle of the car
also a little downforce could help
More “S’s” mean more volts! 🤣
Hola Javi, excelente video, es usted un master, no solo vende coches increíbles sino que también los mejora antes de entregar a sus clientes, sin duda usted piensa más allá de tan solo la venta de un coche.
Wow, it’s like a year ago and back then you only had 400k and now you have more then 1M! Congrats!!!
when do we see the next one?
Ignore these comments and stick with “ little Martin” and his “less waffle, more action”!!
And you can’t go wrong with more power!
👍🤪
Yeah but the smashing and bla blah blah what happened Bla bla smash the bell bla blah. Gets boring after a while
@@stephenthompson9722 No it does not its tradition
Love your attitude mate, doing your eBay course Kev! Love it and the 75 habits are helping a lot too thank you Australian subscriber!
I’m thinking about joining my self not sure yet tho🤔
It’s trying to plane
What this means is that it’s creating a cushion of air for the car to glide on. The reason it spins so easily is because when you go in reverse it creates a vacuum that pulls it towards the ground. The way to fix this is create an air escape in the frame. Or lift up the back end. While also making the rear suspension very stiff. With cushiony tires to absorb the bumps.
I don't know if anybody has suggested this yet, but it could be the torque backing off of the two differentials. From front to back it puts a twist under torque, and then a backwards twist when you let off of the torque. Causes the car to spin
Milwaukee hands down. That stubby 3/8 drive impact is one of my favorite tools ever.
I used to have dewalt the motor exploded so milwaukee hands down idc what you say ( I tried returning it supposedly it "not theirs"
That's what I'm saying Milwaukee is the best. DeWalt sucks.
Idk how the motor exploded it just did
@@spike-- we'll see
Locks the diffs, removes rear downforce and is then confused why it doesn’t handle 🤦🏻♂️
locked diffs add traction
@@danwitavan5146 only on high traction smooth surfaces. A crawler is the exception because your trying to get maximum power to each wheel. He would have been better using actual diff oil, even if it was thicker than stock.
@@annon1731 then he shoulda got different diff oil whats your point lol
Dewalt I’ve never had one issue and the battery tends to last longer than the Milwaukee
Where I work we have had a few Dewalt impacts break badly and needed to be scrapped and with the years we have used Milwaukee we haven’t had any issues. My dad still has a Milwaukee M18 before they were fuels and it works flawlessly
With the same model, I put the bottom back suspension mounts on the screw hole closer to the middle. This lifts the back with can prevent the car from flipping over and I believe can make that wing off yours useful. Hope this helps!
its spinning because the rear is now heavier, so any left or right momentum spins the car, the rear fin stops the car spinning when it reaches to the front, because of the air flow.
regarding the 203hp project, drag cars have a wheelie bar to stop flipping, and bigger rear wheels for more torque. Also would recommend, more foam on the wheels, and smaller rims.
hey kevin the steering servo on my baja 5t has recently broke and i was wondering if the heaver steering servos were better or worse that the lighter steering servos
I like how he spends so much on rc cars yet he still has a really old samsung
Portercable best power tools. You need a splitter mate. For front down force. At around 65mph (first known wind velocity where efficiency becomes a factor. From 50-65 the aero becomes exponentially more or less efficient. The next wind barrier is 85mph then after that it’s 120) cheers
The diffuser doesn't create downforce persay but a vacuum underneath the car. You want the front end low as possible. And you want the diffuser to funnel the air to a more narrow channel at th back end o the car between the rear wheels. That accelerates the air leaving the back of the car and creates the vacuum that holds your car down. I learned all this for actual cars
If you want my opinion, I think you have to use rubber tires rather than foam tires. I know nothing about RC cars, but I think that rubber tires would significantly improve grip, which would make the car slip less. Hope this helps 😀
I switched from DeWalt to Milwaukee and have never been happier. I was tired of DeWalt batteries going bad after a few months.
It might be because when the rear squats due to the body's downforce at speed, the rear wing you made will cause lift due to its angle of attack. That little guy was actually on the right track...smart kid!
Saw some videos of this guy and he cant stop spending money and collect stuff, but he do that in such a natural way... He has his room plenty of expensive stuff and he is so indifferent to all that I feel stupid being poor
This guy is a low key comedian 🤣 3:11 "some good footage" lmao🤣😂
Back end squats. Makes the wing no longer flat and gives the opposite of downforce. Angle it some. Give it a bit of downforce. Check the shock travel and make sure it stays in the “downforce” position throughout
Kev, pls add camber to rear wheels. also make sure that the front camber is good and you have down force for the rear. Keep building that monster truck!
It's the wing you made is to much weight, so it makes it switch ends. I would suggest using a plastic wing with a little more thickness then the original wing. I've done this and works perfectly. I used a heat gun to bend the plastic, and have a 3D printed wing.
Taken a look at your rear wing I would say it has some buoyancy. Lower the front as Johnny said, give the rear wing a small amount of angle. 3-5°... This should help keeping the car down.
Keep in mind that aerodynamics tend to lift the car if your wing has no downforce. This results in a light back and let's your car spin.
I'm from Wisconsin and to see you using my states pride and joy in the uk makes me proud, subbed! You just need some snap on stuff now haha
i love how the package said "FRAGILE" and he still threw it on the counter xD
Maybe stiffer suspention. I’ve heared from Traxxas that stiffer helps more with speedruns.
Lambo in the garage, plays with RC's all day...this guy has life sorted.
i personally use these 5200kv 3650 things. they usually explode at topspeed with 4s. DONT REV IT OFF THE GROUND KEV!!! just dont. the rotors explode. i've killed 5 of them already. but the provide good power and work perfectly on 3s.
Milwaukee is best power tool brand. Hands down
Absolutely love the little lathe for the tires...to cool
smear some white woodglue on the tires. Not waterproof. let it dry. When they heat up the "stick" to the asphalt. Drives way better. tested it some years ago.
You need to consider rocket science when you make a land rocket. I suspect that the CG is too far back and it is acting like a rocket when you let up on the throddle and the heavy rear is whipping around after apogee ; ) love your energy, brother. Maybe let your son narrate an entire video? That would be fun.
HDPE is what I would use as the bottom plate, but it would require a stiffener. They use HDPE on Kayaks and coolant bottles, you can plastic weld it with a heat gun and you will be able to shape it however you desire.
The homemade wing has considerably more mass than the stock wing. Since all that mass is behind the rear axle, it acts as a counterweight to the front end. Either go back to the stock wing, or add a proportional amount of weight to the middle/front of the car. All the extra wing weight is also why the back rides low and the suspension seems too soft.
The flip around is because the car wants to lead with it's bulk, if that makes sense. Basically the center of gravity is way too far back
NO Dewalt, NO Milwakee. Used both extensively. Ryobi for sure, its ABSOLUTLY the BEST.
kev i want to congratulate you on your channel i have been around since you had 39 subs i was your 40th. i can congratulate you enough.
Make the suspension stiffer. If it’s too soft it gives the car the option to wobble and not allow it to stay straight
i would have loved those cheap rcs when i was a kid and had expensive fragile tamiya cars
13:22 HDPE is the material you're looking for! It takes a beating well and is heat-bendable.
Try using kydex, or delrin. Kydex is what I use for skid plates, holsters, mud guards and wings. Also try adding weight to the front. Will help plant the front to the ground for tracking and steering.
Add a little weight in the nose. That's why it keeps flipping around backwards. If you totally balance it it should "Rip" as you say. Cool video!
the car has to be 4 wheel drive if it is then try a 2 wheel drive and
another reason is beacuse that the wheels is to fast so when flat out it will like pick up in the air
hope this helped Ohh and i liked 😀😀😀😀😀😀
Inspiration taken from Le Mans (the film) attach some bits of string all over the car with some tape, blow air over the car and notice how the string reacts, you want the string to be as calm as possible off the back end of the car. If the string is flapping about like crazy means you’ve got rather dirty air which as there’s next to no weight for traction, could be the source of the instability
Toe in is better for straight line stability. Race cars use toe out in the front to cause the car to change directions more readily on the track
For the underbody of the 200mph project you should try to use PEHD , it's super easy to work with and it's absolutely unbreakable ( To give you an idea , the Russian unbreakables bodies are made of PEHD )
3:55 bro got me scared, thought it was gonna hit the lambo
I'd recommend a cutting board for the underside since there ment to be abused and cheep. If you can get a set of tires made of gum rubber I'd bet they would serve well. Super cool stuff .
Kev! You need to add a front wing like F1!!!!!!!! So you can get more speeds and no spins
Love how he just tossed a parcel labeled "fragile" onto the counter
You need to expand the chasis to fill the gap between front and back wheels at the sides. You also need to balance weight by setting two batteries, one on each side on top of that expansion, probably outside the body of the car each as they won't fit inside, finally lower suspension is better, see sports cars.
P.D. instead of plastics, use carbon fiber
Such a great RC channel! Get a rear diffuser on there and try round 3
Kevin stay strong you will be fine, you will finish the project, it's going to be cool 👍
Should lock the front diff and leave the rear open. The car overall doesn't provide enough downforce and with the shape of the rear of the body and the angle of the wing, it might actually be decreasing the rear end downforce. Each wing, canards and the shape of the body need to line up to channel the air and not disrupt the air flow.
Kev- has box that says fragile and probably took a few weeks to arrive.
Also kev- slams box on table.
This shows that kev uses his cars for EXTREME BASHING and honestly doesn’t care what happens to them as long as he is having fun. 😂
The metal wing added too much weight to the rear end, causing it to swap ends. Think of an RC plane, where the heavy stuff is up front and the lightweight tail just drags behind. With very little downforce, at higher speeds that car is basically an RC plane as it bounces off the bumps.