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

[zachbusch]

adding Fps

it is pushing just over 400 stock and i feel it is lacking in its  ROF
its also abit loud, im looking to add to the rof, make it quieter.

i prefer systema parts but if youve got a better idear im all nostrils .... i mean ears 8-[

the guns 1 week old so theres virtually no wear and i cleaned it right after the game last night [smilie=armata_pdt_01.gif]

[busta_cap]

Sell it, and get a KWA m4. They have an insane ROF.

[zachbusch]

Sell it, and get a KWA m4. They have an insane ROF.

nah    i like the VFC body , its rock solid and i already have it,  the gun just doesnt have a *high enough* Rof for my liking

[XavierMace]

Get a weaker spring.

[I Slap Fat Kids]

There are a few choices.  You could go with a Li-Po; I'd stick with a lower-powered one.  I don't know much about VFC gears, but I assume they're pretty good, so you could go with a Systema Turbo motor (I've heard that they have tons of torque to go along with the high speeds), that is if you don't mind spending the extra.  As Xavier Mace said, you can also install a weaker spring and a silent piston head to make it quieter and increase RoF a bit.  I would also remove the fuse and ensure that the gears are shimmed well.  Removing the fuse gives you a very noticeable increase in RoF.

[zachbusch]

cool thanks i think you covered everything  =D>   im lookin in to it

[axisofoil]

ROF Upgrades that don't affect FPS

High flow wiring set
Higher Voltage battery
Lower resistance battery
High Speed Gears
Better motor
MOSFET
Better shimming
Lightweight piston/piston head  <-- If your piston head sucks, this may up your fps slightly.

[zachbusch]

ROF Upgrades that don't affect FPS

High flow wiring set
Higher Voltage battery
Lower resistance battery
High Speed Gears
Better motor
MOSFET
Better shimming
Lightweight piston/piston head  <-- If your piston head sucks, this may up your fps slightly.

cool thnx my guns pushing just over 400+
a silent piston head wouldnt add very much :-k  fps would it?

[yammie r6s]

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.

[zachbusch]

ill check that out, thanks

[Whiskey11]

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

[axisofoil]

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.

Well, not the deans, but the rest I commented on.
Also, direct wiring, completely without connectors, is even better than that. Of course you would also have to know how to add charging leads to the battery at that point, also.

[busta_cap]

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.

Well, not the deans, but the rest I commented on.
Also, direct wiring, completely without connectors, is even better than that. Of course you would also have to know how to add charging leads to the battery at that point, also.

Direct wiring would be unsafe without a cutoff switch to the gun. You are better off with Deans plugs. 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.

[Whiskey11]

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.

Well, not the deans, but the rest I commented on.
Also, direct wiring, completely without connectors, is even better than that. Of course you would also have to know how to add charging leads to the battery at that point, also.

Direct wiring would be unsafe without a cutoff switch to the gun. You are better off with Deans plugs. 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.

Yup, Deans connectors are rated to 30 amps continuous I believe, where as Tamiya plugs are rated to 10-15 (mini and large respectivly)... Our wiring is seriously at fault though, for our premise it works because we are not running those types of amperages all the time but our wiring is only rated to like 10 amps or something, thats 16AWG stranded.  But like I said, being as we dont run that 100% of the time we get away with it.  Guns with external wiring where wire size isnt an issue should really move to something rediculous in size like 12 AWG wire to see a real benifit from wiring  :twisted:

Direct wiring, oi, direct to the battery is a bit insane lol.  Thats a bit beyond what I'd do  Deans Connectors are perfect for what we need though, no more large and small connectors to worry about, just one connector and thats all

[busta_cap]

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.

Well, not the deans, but the rest I commented on.
Also, direct wiring, completely without connectors, is even better than that. Of course you would also have to know how to add charging leads to the battery at that point, also.

Direct wiring would be unsafe without a cutoff switch to the gun. You are better off with Deans plugs. 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.

Yup, Deans connectors are rated to 30 amps continuous I believe, where as Tamiya plugs are rated to 10-15 (mini and large respectivly)... Our wiring is seriously at fault though, for our premise it works because we are not running those types of amperages all the time but our wiring is only rated to like 10 amps or something, thats 16AWG stranded.  But like I said, being as we dont run that 100% of the time we get away with it.  Guns with external wiring where wire size isnt an issue should really move to something rediculous in size like 12 AWG wire to see a real benifit from wiring  :twisted:

Direct wiring, oi, direct to the battery is a bit insane lol.  Thats a bit beyond what I'd do  Deans Connectors are perfect for what we need though, no more large and small connectors to worry about, just one connector and thats all

Yep. maybe not these days because some people still run nicd and nimh vs lipo, but it's a nice gesture for yourself and others to have a couple adapters soldered up to go from deans to tamiya big and small and vice versa. That way if you need to charge off someone elses charger at a big op, or vice versa, makes stuff easy.