i want to mod my VFC m4 so it has a higher rof without...

[zachbusch]

no it'll just add consistency. imo opinion buy a high torque motor but do your research on them. ei Systema magnums have a few issues with the pinion gear.. the only high torque motor i have experience with is the hand wound hummer motor, they work very well- they are pretty hard on stock internals though.

The Magnum has more issues than the Pinion gear, the endbell is aluminum and the only thing keeping from shorting the terminal posts is a thin anodizing...  The other issue is blowing windings caused by shorting out the endbell... Magnums are OVERPRICED, but if you like paying for "quality" ( :roll: ) I guess you could get one.

Important to note is that Torque and ROF are opposite of each other... generally a motor with insane Torque has a lower RPM than a motor with less torque and the rest of the motor the same (that means adjusting the number of windings on the motor).  Torque does make it easier for a motor to reach max RPM, it also improves trigger response, but Torque and RPM's generally move in opposite directions.  The Systema Magnum achieves it's RPM via the use of Neodyium magnets.  Several other motors out there have similiar set ups, the SRC Ultra Torque Motors, ICS Turbo3000 and the new JG Red Endbells and the line of "echo1" magnum motors all have neodyium magnets.

The Systema turbo is another turd of a motor.  Same issues as the Magnum but with a higher prevelence of burning up windings faster than a 1970's Muscle Car consumes gas.  Overpriced for what you get, as per Systema's norm.

The easiest way to increase ROF, is to increase battery performance.  What battery are you using?  Ideally you want a battery that can supply at least 30 amps continuous, 25 at the least.  Regardless of Voltage.  Know what the difference between a 9.6v 1500 mAh anda  9.6v 5000 mAh is?  Not just how long the battery will last but the discharge rate of the pack is different, guess which one has the higher ROF? The 5000 mah obviously  

No one has mentioned it yet, but replacing all of your tamiya plugs with Deans Connectors in combination with a MOSFET and low resistance wiring can yeild 4-5 RPS on most guns.

I've just scratched the surface here

i think ron hooked me up with a 9.6 4000 im not 100% he had to mod it for my stock

[axisofoil]

IIRC Deans plugs come in brass, and nickel plated. They are of a good gauge and should suffice for the draw of air soft motors. I used standard Deans plugs on a helicopter that had like 20amp draw with a brushless motor setup..worked fine.

It's not just about the ability to handle the current, even the almighty Deans (which I highly recommend for all intents and purposes) do introduce SOME resistance. Granted it's only about 1/10 of what tamiya's have, it's still about the same as several extra feet of wire. Direct wire isn't the safest without a gun-side cutoff (which introduces enough resistance to negate the benefits of direct wiring, unless you use a solid state switch (such as a mosfet) to control the safety portion of the current, in which case your wiring will be pretty complicated and it's still not a guaranteed safety solution), but it does have remarkably low resistance.

Just so everyone is clear. My guns run Deans connectors, not direct wiring.

[zachbusch]

it has a m120 spring, and plastic bushings, what if i put a m110 in it?

[axisofoil]

it has a m120 spring, and plastic bushings, what if i put a m110 in it?

Smaller spring almost always results in higher rof and lower fps. In your case, it most likely would.

[XavierMace]

it has a m120 spring, and plastic bushings, what if i put a m110 in it?

Smaller spring almost always results in higher rof and lower fps. In your case, it most likely would.

A weaker spring is always going to lower your FPS and unless, by chance, your motor is already spinning at it's maximum RPM with an M120 spring then it's always going to increase your ROF.  There really isn't an almost or likely here, it's simple physics.

[axisofoil]

it has a m120 spring, and plastic bushings, what if i put a m110 in it?

Smaller spring almost always results in higher rof and lower fps. In your case, it most likely would.

A weaker spring is always going to lower your FPS and unless, by chance, your motor is already spinning at it's maximum RPM with an M120 spring then it's always going to increase your ROF.  There really isn't an almost or likely here, it's simple physics.

Exactly. But, it is possible to have a motor/electrical system that runs at full capacity pulling an m120.

[zachbusch]

ive been asking around afew friends who build there guns in parts from the net.  im going to see if afew more games of ware on the spring will give it alittle more  bb rof :-k