RC car speed performance can be significantly improved through proper component selection and gearing calculations, even when using components not originally designed for high-speed applications; in this case, a budget Arrma Limitless roller equipped with an XC-ESC 1250KV motor and E6 PRO ESC achieved 135 mph through careful gearing setup (48-tooth pinion with 34-tooth spur gear) and appropriate battery selection (8400 mAh 4S HV LiPo), demonstrating that budget RC builds can achieve impressive speeds when the mathematical relationships between motor KV, battery voltage, and gear ratio are properly calculated and executed.
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Xc‑Esc Budget Limitless This Shouldn’t Have Worked本站添加:
[music] [music] >> All right, guys. Welcome back to the RC store. My name's ammo. Check out what we got on the desk today. That's right.
This is a armor limitless V2. Now, you're probably going to be asking yourselves or you might even message me in the comments saying, "Ammo, why have you got a V2 roller when you've already got an RTR?"
That's right, I have. However, this video was a video that was planned a long time ago. Now, let me give you a bit of a background history on what happened. So, as you guys know, I went out on my first run on my first proper event speed running pulling a personal best of 196 mile an hour. If you haven't seen that video yet, be sure to check it out. I'll put a link just up here in the corner.
Wow, what a day. I was absolutely flying.
Wow, is incredible is the only way I can put it. And a huge thank you to the Underground Racing team for their continued support whilst we were out there. Absolutely smashed it. Now, this was a spontaneous buy and I'll explain why. So, before we went out to the actual strip, I was supposed to be doing a build. Now, that build was sponsored by XE ESC.
Now, those of you that ain't heard of XE ESC, we will go through their products in a second. And what happened was I explained to them that I was doing a build and I would like another build to do 200 mile an hour. When they reached out to me regarding the ESC and motor, I asked the combination I gave them.
They're the figures. That's what I want to achieve. Um what do you have available? They sent me this setup.
However, it arrived the day before us actually heading out to the event. It was way too short notice and I could not get it in. So, you know what's coming, right? That's right. I've hired out the airstrip once again. You probably think I'm crazy, but I thought to myself, let me do it one more time and let me get one fantastic run in. So, you will see a future video coming up with loads of cars. And if you thought the last video was absolutely crazy, wow, you're in for a shock on the next one. I've not only got one high-speed car like last time, I've got about six.
That's right. I have been busy grafting away building some epic builds just for you guys.
So, that event went and then I got back onto XEESC. But when they seen my video and they seen I hit 196 mile an hour, they sent me a message straight away. Their message said basically, "Ammo, what an epic video.
However, they don't believe that their setup is going to be good for 200 mile an hour." So, I guess they probably underestimated me. However, me being me, I said to them, "That's not a problem.
I'll put a target in place." And the target I put in place for this build was 150 mile an hour, which I thought is more achievable. I then had a look at the sort of setup they gave me and this, I believe, is more for trucks and truggies. Now, I've invested a lot of money, is the only way I can put it, into this video hiring out the strip, etc. And it all adds up and I'll be honest with you, the channel doesn't pay for it. I pay for it out of my own pocket. So, when I reached out to them and explained that I don't think this is the right combination to do high-speed runs, they told me to do a different video with it, make the products useful and probably put them in the truggy, etc. However, me being me, I said no, I'm going to stick to my words and I will do right by the company and right by my words. I'm a man of my words and I said I'll do a high-speed run video and that's what I'm doing. So, I'm putting this combo in an Armat Limitless. So, a huge shout-out to XE ESC for sending me the motor and ESC combo. A huge shout-out to Steven for selling me his roller. Now, this roller has been used once. You've probably seen it in our last video when we were at the airstrip. The car was built for that airstrip. He ran it once. I believe he had it on a Max 6 combo. He did about 70 mile an hour. He was cutting and that's it and then he decided to sell me the car as a roller. So, the car is pretty much brand new. There's not a scuff on it, etc. It's absolutely mint. So, I thought it's perfect opportunity for this video.
And then I want to give a massive shout-out to Scorched Parts RC. Now, David has helped me along my journey of speed running and I reached out to him explaining the situation I had with the ESC and motor combo and he sorted me out. What did he supply me? He supplied me with the rotor lock system to get the motor fitted. I did pick a 25 tooth servo horn off him. I've got a servo which is a E-tronic servo. This was picked up from Appliance Electronics.
Once again, huge shout-out to Appliance Electronics giving me fantastic customer service every time. I've actually got this in my Typhon TLR Vitavon Edition and this servo, bang for buck, you can't go wrong. I believe it's about 40 pounds, but it's so strong, it's so quick and it does the job perfectly.
Also, from Scorched, I picked up a spur gear, 34 tooth spur gear. So, I dropped that down in size from the original and we have got ourselves a 48-tooth pinion. [clears throat] Right.
Looking at the calculations from what we've done, the target speed should be 150 mph. So, we've got ourselves a Limitless. We will now bring you guys in. I'll have a look and unbox the ESC and motor combo for you guys. So, let's move this across the desk and let's get all of this unboxed. So, this is the ESC and motor combo. And one thing that was striking from when I first seen it was this. Now, this is a 3S to a 8S capable ESC at 300 amps. Now, just to give you a bit of an understanding, a Max 5 is about 300 amps and that's from Hobbywing's and that runs a 12S system.
That's the G2 system. So, this thing it draws as much amps as that.
Absolutely incredible. But, yes, we need to test it to see how well it actually performs.
So, these ain't really heard of in the UK, but they are quite budget-friendly.
So, I'm going to call this a budget-friendly Limitless to be fair. This is the motor that I've been given. This is a 1250 kV motor designed for 1.6 scale to 1.7 scale cars. Ideally for truggies and bashers to be fair.
But, we're going to run it in a speed run car. Look at the sheer size of this.
Absolutely huge.
I'll be honest with you, I don't even think this would fit in the Limitless without a rotor lock to be fair.
Look at the size of that. So, this is the ESC and in terms of quality, it looks absolutely fantastic. So, this is the E6 Pro Edition. So, the Pro Edition is the newer one that they do and then they do the standard E6 version as well.
There is some information on the side of here. So, you can see like I said once again, 3 to 8S LiPo compatible. it's got a 8 amp BEC, and it says max 25 amps.
Here there's something interesting, as you can see the Bluetooth symbol, and it's got a QR code there. So, that means this actual unit can be configured and set up by your phone using the app. So, for all your telemetry, you want to check everything, you want to check your parameters, voltage, your sag, you can do that all on your phone, which is absolutely fantastic for data logging and seeing where you are to match your performance, whether you need a bigger pinion, smaller pinion, and get a gain and understanding of what's actually going on inside the ESC. To give you a general understanding of the size of this motor, have a look at that. Woohoo! This thing's absolutely huge. Proper thick can. All right, this thing's massive. One thing I did forget to mention is this spool. So, this is a titanium spool by Scorched, and you do need to change to this actual spool if you are using this sort of gearing to be fair. So, I will be changing the spool during this build as well. So, this video is going to be quite a bit of a long video to be fair, so I'm not going to film me putting all the components in, which is basically pretty self-explanatory. I think you guys will enjoy more the running side of this. So, what I'm going to do is jump off camera, I'm going to build this car up, I'm going to put the ESC and motor combo in, I'm going to put obviously the rotor lock. I've told you exactly which spur and pinion I'm going to put in, the center spool. Once that's all put in, I'm going to be using my Radiolink controller, so I will put a Radiolink receiver in here with a gyro, get it all hooked up. We will be changing the tires out to some foams, and I'm going to see you guys out on the airstrip where we're going to go and see what this thing can actually hit. Now, there will be other cars that I'm running on the airstrip and you will see loads of other cars from a couple of friends of mine out there as well.
However, there will be a later on video for all of that and one video full of just hardcore action of speed runs and people chasing 200 plus mile an hour.
There are some epic builds on that video.
So, that's going to be on a separate video, but on this video you are going to see this thing run and um hopefully it hits our target speed of 150 mile an hour. I don't know which way this is going to go, but let's see what happens. So, without further ado, I'm going to go out and get this built.
You guys take a sit back and get ready for some high-speed action. Right, let me stop you there for a second. Now, this intro that you've just seen with this particular car was filmed about 6 months ago, believe it or not, and since then we've had nothing but rain, rain, rain, rain. We have booked the runway plenty of times. However, we keep getting rained off, so I've had to put the whole video on hold and now we're fast forwarding to today, which is 6 months ahead. We are now in May and we're finally going to get to run this car. Now, in that time I did do a few more upgrades to this, so I will show you them really, really quickly before we head off to the airfield and see what this thing can do.
However, I do have more upgrades for this. As you guys are aware, recently I went to New York and I picked up some parts for this from America.
I'm not putting them parts on in this video. I'm going to run it as it is now.
Simple reason being, I built it to a spec and I thought to myself this would be a cheap fast car and now by me putting all the extra bits on it, it'll become an expensive fast car. So, it didn't make sense. I thought to myself, I'll take it out with the modifications that I've done so far, and then after I've done this run and made this video, maybe moving forward, I will put all the upgraded parts on. So, I'm just going to pull the camera in one more time, just show you what I've done on this and what I've changed before we head out for a bit of a speed run with this. So, you can see twin antennas there. I have basically binded up my Radiolink controller to this.
You can see some bright green springs.
Now, these springs are RC store springs, and I have installed them. Simple reason being, they're a lot stiffer, as you guys can see. It takes a lot of pressure in order for me to move them. Now, the reason for that is we don't want the back to squat a lot, and these are very, very stiff springs.
And the idea behind this is is so that the back under pressure doesn't drop too much, lifting the front end and making the car flip. So, that's the idea behind that. I have added some lights up on the front, and that will help with visibility. I will be changing the tires out to some foams. You can see the servo's all installed, the motor's all installed, the ESC's all in there. You can see the rotor lock system's all in there, the pinocchio spool's in there. I have left the stock shafts, as you can see. Now, these you should really change cuz they make a massive difference.
These being imbalanced will affect your top speed, but we are going to run this as it is. I have got loads of upgrades, so I have got all these bits to upgrade still. I've still got all the drive shafts that need upgrading. I've got all the diffs that need upgrading, diff cases, top brace. Like I said, I've got loads of parts for this. However, this is how we're going to run this car in this video. Here on location with the Armar Limitless. Like I said in the intro, this video was supposed to be filmed about 6 months ago, but we just didn't have the weather for it.
So, the weather today absolutely sunny.
We're here on an airfield and we're going to see what figures this can actually pull. Now, like I said, the electronics in this car are sponsored.
However, when they sent them, they told me these were speed run setups, etc. Um after I had a look at it, it seems like this setup is more acquired for a basher.
So, uh let's open this up and let me show you around it really quickly.
So, there you can see the ESC Pro >> [snorts] >> uh XCT SC and you got a 1250 can motor there. We are running some big gearing just to see if it'll pull them speeds.
Now, I didn't want to modify this car too much, to be fair, cuz it was a budget build. So, ideally it could have done with some bigger batteries, but it's only running 8,400 milliamp high voltage lipos. Um these are Turnigy rapid packs. Now, last time I came here, these done quite well, to be fair, and I got a decent score with these. So, I'm going to run them in this and let's see what she pulls. So, I've got the Limitless out here.
I'm going to track.
Press start.
All right.
Let's send it up and let's see what this can pull.
I'll put my phone down.
All right, sending it all the way down.
All right. Let's bring it through.
And let's see what she pulls.
It is tall gearing.
All right, the way down.
All right, bringing it up back.
>> [screaming] >> All right, let's pull her in.
And let's see what she pulled.
>> [screaming] >> All right, I just stopped that there.
Let's see what it pulled on that run.
135 Fair play for open wheel Arma limitless. Oh, wow. This budget build absolutely surprised me. Don't get me wrong, when XEESC sent me these bits out and I had a look at them, I even mentioned it on the video, I didn't think it was going to do it, to be fair.
I was supposed to be building a high-speed run car and this is like a basher setup that they sent me. However, it's done really well. I'm absolutely surprised by the way this performed. 135 mile an hour and the car did not cut.
You guys seen my gearing on the build.
It's extremely tall gearing and it's a lot to ask when you're basically putting a pinion of that size on a motor. But this thing took it incredibly well. I did ease it into the pull and it did not cut. It just carried on, carried on, carried on.
Now, I believe on that run it ran out of gearing was the issue and it stopped at 135 mile an hour. Unfortunately, I didn't have no more gearing with me because me being me, I was under the mindset it's going to cut anyway and I thought I'd be lucky to hit 120 mile an hour. It's going to cut before then. The gearing's too tall. It ain't going to do it.
But if I had faith, which I do have now, yeah, this thing's absolutely incredible. That E6 Pro ESC is absolutely insane. 300 amps and it did not cut. It pulled and it produced and it gave that motor exactly what it needed. I think, guys, the next step for this is we need to go faster. At the same time, like I said, I was running this as an open wheel setup, but I think it's the time to take this to the next level. Now, if you guys want to see a full build series on this, please drop a comment below. I have bought loads of parts for this car when I was out in the USA and I can happily film a full recording process of me putting all the upgrades on, etc. If you guys want to watch that, drop a comment below and I'll happily record the journey. This thing has been absolutely incredible and my apologies to XE ESC, who have been waiting a long 6 months for this video to be released. My apologies. Like I said, the weather has been incredibly bad and I just couldn't risk doing that sort of speed on the road. That's just me. Don't get me wrong. There's loads of lads out there that do it, but for me, where I live, it was just not possible for me and the weather did not help. However, fantastic results. Now, if you want to pick up this power plant or something of this sort, check out XE ESC, guys. Like I said, absolute phenomenal platform and I will try and put a link in the description on where you can pick their products up from. In terms of pricing, they're a lot cheaper than anything else you'll see on the market and the proof is in the pudding. They perform. Guys, if you've enjoyed this content, please feel free to like, share, and subscribe. Don't forget to smash that notification button and I'll see you in the next one. Thank you for watching.
>> [music] [music]
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