The Velinion system will run for years, but only if you don't stress it. The stock gearing is important to know because it is useful to have a baseline to go back to in case you get too extreme in your gearing. Second, the more appropriate gearing for the Castle 5700Kv of 16T/90T is practically identical to simply increasing the pinion gear a single tooth for the Traxxas motor. What feels good to one driver might not be great for another. As said already, go back to stock gearing and run it as Traxxas intended, or get your wallet out. FIXED GEAR ADAPTER REFERENCE CHART KC2553-R01 Rev 171006 STOCK GEARING SPEED GEARING Model (Model No.) If we just swap motors, we'll certainly gain a lot of speed, but we also might have an issue with overheating due to the reduction of low-end torque. Finding the right gearing can be a lot or trial and error, but there are many advantages to having a proper gear setup. Now that we have the equation, we just have to pop our numbers in and determine the outcome. If we wanted to increase our speed, but not as much, we'd also have to adjust our gearing. Thinking about it this way, it doesn't matter which gear you change - it's applicable to any vehicle, any gear pitch, and any tooth count. I know, I know — the word "math" leaves a bad taste in your mouth, but this isn't high-level trigonometry we're talking about. First, it's notable that with just a change in gearing, you could gain almost as much speed with the stock motor as you could by changing to a new motor. You would gear your vehicle one way if you want a lot of low-end power, like for a rock crawler, and another way for a super-fast speed run with a sports car. The Traxxas X-Maxx forever changed the face of RC monster trucks. So if you wanted to get more torque and less top speed out of our example Slash VXL, you could either up the spur gear to the 90-tooth option Traxxas offers, or lower your pinion gear down to, say, a 20-tooth gear or any other tooth count lower than 23. It can be a bit of a nightmare to figure out how best to gear your truck, but with a little math and a calculator, you can be a gearing expert in no time — or at least good enough to achieve what you're shooting for. The nice thing about the Sidewinder 8th is the heavier-duty electronics and larger motor and both handle more heat, and dissipate the heat faster, meaning you can increase your RPM and not worry as much about overheating. However, changing a motor will sometimes also require you to change your gearing as well. %PDF-1.6 %���� However, it's hard to have this conversation about gearing without addressing another major factor in determining your overall RPM: the motor. We also need to know what battery we're using. Slash VXL Stock Gearing23-tooth pinion & 86-tooth spur. Play around and find what works for you! here is a complete guide of traxxas rustler, bandit, stampede, and slash gearing options, and how to change and adjust your gears, demonstrated on a traxxas rustler. A differential is a collection of gears designed to allow two tires on the same axle to spin at different rates — check out this amazing video from the 1930's for more information on how differentials work; I've never seen a better informational video. Without doing the math on the gearing, someone might spend lots more money … And now the new motor with stock gearing: That increased the RPM by 4,942 overall; a sizable increase, but as I said above, the increase could lead to an overheating problem. Both of these options will decrease the low end power of the truck while simultaneously increasing the overall top speed. The most common gears you can change on an R/C vehicle are the pinion gear, which is the gear directly connected to the motor's output shaft, and the spur gear, which is the main drive gear in a vehicle, and usually interfaces with the pinion gear (a pinion can also be a gear associated with a differential assembly, so make sure to use context to deduce which is being referred to). Traxxas Telluride 4X4 (67044) Transmission & Gearing My Orders Help Shipping Info Contact Us Coupons Hot Holiday Deals! There are some that believe 48-pitch and 0.6Mod are also identical, but that is incorrect — while they may be very similar, over time you will notice some wearing on the teeth where they don't fit together exactly right. All of us at Traxxas want you to safely enjoy your new model. Let's look at an example using our Slash VXL. When you put it in first gear, it was easy to peddle the bike, but you never got going very fast. Let's say we want to change our stock Traxxas Velineon motor out to something with a little more top end, like a Castle Sidewinder 4 with a 5700Kv motor. Quote Link to post Share on … Experiment with your gearing. The reason we use gearing in vehicles (both in real life and in R/C) is because of the inverse relationship torque has with how quickly something is spinning. (This means the spur gear will rotate once for every 3.74 times the pinion gear, and therefore the motor shaft, does.). If you stopped, however, and forgot to shift back to first gear, if was nearly impossible to get going at all in fifth speed from a dead stop. Everyone knows what a gear is, but "gearing" refers to the way that the individual gears work together to gain a mechanical advantage. For this example, we'll use a 2S 7.4v LiPo, which should be 8.4 volts when fully charged. But let's say you had a Slash 4x4 and wanted to upgrade to a Castle Sidewinder 8th motor and speed control. 167 0 obj <>stream This tends to be the most difficult aspect of gearing for people to keep straight, and I find it helps to think of it in a relative fashion. This is gearing in action, providing you with a mechanical advantage, whether you wanted to use as little effort as possible to get going, or wanted to get the fastest possible speed. 4 • TRAXXAS All instructions and precautions outlined in this manual should be strictly followed to ensure safe operation of your model. The Traxxas Hoss 4X4 VXL unleashes extreme RC monster truck fun with the speed and style only Traxxas can deliver. Copyright © 2009-2020, Roger's Hobby Center. We usually don't worry about the gearing of the transmissions and/or differentials, because they usually can't be changed — it's rare a company will offer multiple differential gears or transmission gears. If you wanted to get more speed for this truck, you could either 1) increase the pinion gear's tooth count or 2) lower the spur gear's tooth count. So because the only modifications we can do to the gearing of the vehicles usually concerns only the pinion and spur gears, that's what we're focusing on. So let's try to find some gearing that gives us a little more speed, but also doesn't lose as much on the bottom end. To determine your gear ratio, you divide the spur gear tooth count by the pinion gear tooth count: A Guide to Traxxas' Batteries and Chargers. As with most things in the hobby, the key to gearing is a healthy amount of trial and error. Conversely, if you wanted to gain more power, you could 1) decrease the pinion gear's tooth count or 2) increase the spur gear's tooth count. Sometimes there is a transmission, like our Traxxas Slash VXL has. With extra time on my hands and no work for two months. This gives you plenty of speed, but still keeps the temps down overall. The chart to the right shows the RPM for each motor with different pinion and spur gear combinations. Gearing up refers to decreasing the gear ratio, and gearing down increases it. This is known as overdriving the front axle, and you can do it with your Traxxas … The Traxxas motor (blue) with 30T/76T gearing is very close to the Castle 5700kv motor using the stock gearing of 23T/86T. The Traxxas motor (blue) with 30T/76T gearing is very close to the Castle 5700kv motor using the stock gearing of 23T/86T. If you drop the 2200Kv Castle Sidewinder 8th in your Slash 4x4, use stock gearing, and upgrade to a 4S LiPo, the performance will be almost the same as a stock truck with a 2S LiPo. This gets a little more complicated, because you're likely to also switch batteries as well, since the Sidewinder 8th opens you up to using higher voltage packs, which will in turn affect the calculations and final RPM. There are a few common sizes we use in R/C, such as 32-pitch (32P), 48-pitch (48P), and 64-pitch (64P). Whether you want more speed, or more bottom end, the motor is another point of change when we're talking about RPM. I figure why not do some rc wrenching videos. h�tRak�0�+�M�&*auk)��T?�gCq�����M����q��w���H����兾����-q���•�>��Y���j��V]��p&1rO8K}�|�����=?���d���3k�o�R8.ݪc�>��ZEn;�ݫQ�L�F�Y�6��vʁ�A�4�(��ݮ+�ZWY��O�r��>�H��4&�U�o7p���� � ��� �$ � � "�@��� egtW)���ۊ��n��ҞTyp�A�O>lK(M�]�%�&�ϡSp�C��}��{_B���(B/$� ����WuΖ�ߒ�͔'3��v�Fk�_�޳��zRE1����r���&K��A��_� ����

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