Can you make RC cars go faster?
In theory yes. But, it would involve some work. You can make an RC car go faster by simply increasing the voltage. All you'd need to do is find an additional voltage source and a H Bridge. You need use H Bridge ICs like the L293D. However, the challenge is in safely removing the connections from the IC in the car without damaging them. After removing the connections, you need to divert them to the H Bridge IC, ensuring that you take care of the new connections and make them properly (depending on the pin diagram, of course). After this you need to connect the H Bridge to the motor and the additional high voltage power source (again, refer to the pin diagram). Ensure that whatever you have additionally fixed on the car is properly mounted, you don't want things falling off from the car when you're moving fast.After this is done. Voila! You have finally made an RC car go faster.Although making the RC car go faster is possible, there is a simple reason as to why it isn't done in the toy. When more voltage or current passes though the coil, heat is generated, this might cause the coil to burn and render your car inoperable. So, when you are using your modified RC car ensure that you don't use it for extended periods of time.Also, there are lots of online resources, try going through them.
My car rpm goes up but speed doesnt?!?
You need to make sure that the transmission is full of transmission fluid ,if it is you might have the transmission filter replaced,if this doesn't help it you will need to have the transmission replaced.
My car won't go past 25 mph speed?
Last night my car was working just fine. The only thing it needed was an oil change. This morning when my mom came back from going shopping, she told me that my car wouldn't go past 20-25 mph. She said it worked fine at first. Later though, when she went to go slow down and speed up again the car wouldn't speed up. She said she heard a pop sound. There is no "whining" sounds when you go to speed up, it just sounds like it's trying to but can't. There's no check engine light. I was thinking that it was maybe the spark plugs or catalytic converter? My car is a 1990 Toyota Corolla with around 95,000 miles on it.
Will a car travel faster on larger or smaller wheels?
If your motor turns at a certain rpm, then increasing the wheel size will definitely increase your speed. Each revolution, you will travel (pi * diameter of wheel). Since speed = distance / time, you can see that if you travel further in the same time (the time for the motor to make one revolution) then your speed will increase. Of course there are physical limitations. You can't put on really big wheels and exceed the speed of light, for example. And possibly not even 15mph. But when the speed and weight are low and the motor generates enough power to run at full rpm, then the wheel size definitely matters.
What would make your car not accelerate past 60 mph and only rev to 4xxx RPMs?
I had that exact problem. Except my limit was not 60 MPH. My car would not go over 95 MPH, which was very strange because it could do so before. (My car was a little German built sports coupe, with a V-6, and 4-speed stick.)Since this was a new car, and it was still under warranty, I brought the car back to the dealership. I explained that once I hit about 90 to 95 MPH, that the engine sort of balked, and it would not go any faster. The Service Manager looked at me like I was some kind of nut. But I told him, “Look, there is something wrong with my car. It shouldn’t do that.”So they assigned a mechanic, and we took the car out for a test ride on I-494. The traffic was light back in those days. So we were able to test my car at high speed. And when we hit 95 MPH, it started bucking a bit.The mechanic worked on the car for hours trying to find the answer. (Good thing it was still under warranty.)He discovered the problem. My fuel filter was partially clogged. So at higher speeds, my engine could not get enough gas through that partially clogged filter. The filter was located inside the gas tank, so they had to remove the whole gas tank to get to it. We got that little problem fixed, and now my car had no problems at high speeds.The Moral of the Story: Here’s the part of the story I am a little bit ashamed about. I caused this problem by being stupid. I live in Minnesota. Cold Minnesota. And we had some cold weather that year. I was afraid my gas line might freeze, so I got myself a can of HEAT. This is a liquid chemical we add to the gas tank to prevent gas line freeze ups.The correct “dosage” was one can for a 20 gallon gas tank. By my car was a little sports coupe, with a 12 gallon gas tank. So I should have used only a half can. And here is where I made my mistake. I figured if one can was “good,” then two cans are “better.” So I put in two cans of HEAT. Four times the correct amount. WHAT A DOPE I WAS back in those days.What I did not know is that this HEAT chemical would clog up my gas filter. I had no idea. Live and learn. I won’t make that mistake again.
How fast could a geared electric car go?
Pretty much the same speed as the same car with one fixed gear ratio.Electric motors have great torque at zero RPM, so it is often possible to select one optimum gear that achieves the highest speed possible given the horsepower of the motor(s) and still have excellent low end acceleration.For example, Tesla’s model S sedan has enough torque that the power has to be electronically limited to prevent wheel spin when accelerating from a stop. There would be no benefit to a lower gear for low speeds. It is also power limited at its maximum speed - a higher gear ratio would not help at the upper end.The fact that electric cars don’t need to change gears is one of their advantages.
Why can't cars attain the max speed which is printed/hardcoded at the speedometer?
It's really a margin of error. Like the 2016 Camaro 2SS, and it has a speedometer of 200 MPH. But the top speed of the car is around 160 MPH but that's with the governor on. I estimate that without the governor it could get to 185 MPH. Still almost 20 MPH above what it truly can do. Again margin of error. Just in case people modify it. Chevy and Ford are huge supporters of the aftermarket game, unlike Dodge. Chevy and Ford encourage people to modify and make their cars better, lighter and faster. They want people to supercharge their cars, put forged internals in, and to replace the exhaust system or to replace the interior seating.However, their are some cars who's speedometers are lower than the top speed. Such as the Dodge Challenger R/T Scat Pack. The car is pushing 182 as its top speed but the speedometer only goes up to 180MPH. The reason behind this. To discourage modification of the actual car. Also, I just learned this, but dodge actually encrypt their car computers and its more difficult to change the settings of the computer, again this is to discourage modification of the car. The Scat pack is packing in around 485HP. The reason why they want to discourage modification is because they want you to buy the next fastest car. Which is the SRT HELLCAT. which has 707 HP. so with around 10k in upgrade. I can get the scat pack doing 800HP. That's 100HP more than the hellcat and around 15k less than buying a hellcat.So all in all, most companies do it as a margin of error and for modification. However, a small portion of companies, like dodge, do it so then you'll buy the next fastest car from them and not from an aftermarket shop.
I think the speed of light restriction is nonsense. How fast can we really make something go in space?
the "speed of light" is not a restriction or a limit.... Most people who are quoting Einstein conveniently forget the ^2 at the end of the equation.... Einstein said nothing can ACCELERATE at/faster that light speed... there is no way to "propel" your "accelerant" at that speed out the back of your rocket. But accelerating at a constant speed will quickly get you and your craft above 186,282 miles per second relative to SOMETHING else in the universe... especially if you consider that you can fly AGAINST the roataion of the galaxy AND the earths revolution AND rotation. The ones who really get me laughing are the dreamers who go off on the tangent about how your ship gets more massive and so there not enough propellent to propel the infinitely massive ship.... like somehow its possible that the mass of the ship increased but the mass of the fuel stayed the same.... AN INFINITELY MASSIIVE SHIP CARRIES INFINITLY MASSIVE FUEL... better yet... lets use liguid fuel and just before igniting it we ACCELERATE it forward towrds the ignition ports of the engine... that way its "relative" mass is that much GREATER when it gets there, for being accelerated faster than the ship. The speed of light is NOT a restriction.... acceleration at/faster than the speed of light is. Just accelerate at 186 miles per second... you'll reach the speed of light in 1000 seconds