What is the difference between High Speed and High Torque?
 

What is the difference between High Speed and High Torque?

A high speed motor is designed to spin at maximum RPM, however it may not have the necessary power (torque) to pull a stiff spring.

A high torque motor has extra power (torque) and may not necessarily turn at as fast an RPM.

Most people prefer high torque, unless they are making a high speed setup.

To add to what venture said;

it's the same with high speed/torque gears.

One thing to be careful with though if you want an extremely high speed setup is that you need to use a "delayer" device on your sector gear so the tappet plate is delayed and you don't get double feeds/jams.

good to know its because i just bought a VFC FN Scar l brand new and i wanna start upgrading the internals slowly and i want a stronger motor

I like high torque setups over high speed. A combination of high torque gears + high torque motor will give you much quicker trigger response.

The one thing that's always irked me a bit about AEGs is that delay from the time you pull the trigger (especially in semi-auto) till the BB actually fires off. For full auto, it's not much of an issue, but I like shooting in semi, I like it responsive. The delay, of course, is because the motor needs to spin up to speed, overcome the force of the main spring, etc. Unless you have a shit battery or motor, you're talking about a fraction of a second, but it still bugs me.

So the higher the torque setup you have, the more power can be brought to bear on the spring more rapidly. A mix of high torque gears + motor will make the trigger response almost as snappy as if you were firing a GBB or real steel. You can never get rid of the delay completely, but you can certainly minimize it.

The down side of a high torque setup is it reduces your rate of fire due to the motor spinning more slowly. To me, this isn't an issue. I would prefer have a more realistic rate of fire over a BB hose, and I value trigger response time over rate of fire.

My personal preference and recommendation is Modify SMOOTH Modular high torque gearset + Guarder Infinite torque motor. Or if you want the high torque but like a bit higher rate of fire, the Systema Magnum motor boasts both high torque and (relatively) high speed, so you can more or less get the best of both worlds. Of course, having the Systema name on it, it's expensive.

There are other factors too as to when you shoudl or shouldn't use speed / torque setups, but I think this is a good start.

Good luck.

For two motors with the same apparent Power/ Wattage, one will operate a high RPM with low torque, whilst the other will operate at low RPM and high Torque. Both motors will do the same work when geared appropriately, however if a high RPM motor is over taxed and bogged down it will draw excessive current and perform poorly as its maximum work efficiency peak is exceeded. High rpm motors are commonly low pole-count inrunners with stators on the outside but newer AC controlled high torque motors (I doubt airsoft will go this route anytime soon) are more commonly high pole outrunners. The Wattage can be expressed as Horsepower 1HP =746W, which is also angular velocity multiplied by rotational force, in essence RPM x Torque. Motor RPM is expressed at kV, that means RPM per applied Volt. A 1450kV motor will spin at 1450 rpm for 1V applied. As the voltage is increased the motors RPM increases but power compression that can be modeled through finite analysis and other computer programs can be used to determine the upper limit to a motor's efficient RPM/voltage relationship. Low RPM motors operating at a higher voltage and lower current are more efficient than high rpm motors that operate at low voltages and high currents. High current flow causes loss in the form of heat and voltage drop as current passes through the wires' and conductors' resistance. Typically in an airsoft gun you want high torque, but you might also want higher rpm for increased fire rate without changing your pack. An option here would be to employ a slightly higher RPM motor. If the motor in your gun is a 480 series can motor rated for 1400kV, you could consider a 1600kV variant but I wouldn't jump the gun to a 2200kV unless it's designed for higher power and the pack is appropriately rated. With this information in hand it can help you choose motors to fit the rate of fire you desire for the battery you can fit in your AEG.

Keep in mind if you upgrade motor to high torque you'll lose ROF, if you upgrade to high speed you might have trouble even turning over the spring if it's a hard spring (M120 or above). IMO stock motor is usually good enough but if you really want I would recommend something like a Guarder Infinite Torque motor for cost/performance or a SystemA A to Z if you want the absolute very best.

For even better performance you "could" rewind your motor, but it's not necessary and I wouldn't recommend it without experience and the knowledgebase to do such a thing (and maybe a cooked motor as well), I don't know any airsofters who have ever rewound their motors (this is mostly an RC thing when they cook their motors and attempt to repair them).

If you want more power, start at the heart. Apply torque to the gear set before you consider doing the motor.

Doing it the other way around not only increases stress dramatically to your gears, but also drastically increases the risk of stripping gear/piston teeth due to torque build-up. Unfortunately, this is the same mistake that the majority of airsofters out there make, by upgrading the motor without considering the gears.

It's somewhat akin to slapping in a high power motor in to the car without taking in to any consideration the transmission and gear ratios.

Alright thanks for the head up will look inot it thanks!