Hispeed set ups for M4 without opening the gearbox

[obgyne]

Good Am po. Just Giving some insights in improving the speed of your guns without opening your stock AEG with FPS <450.

You have these options:

1. best cheapest way is to buy M94/M93 Jinggong red motor. then use the usual stock battery. the result may vary according to the voltage carried by your stock battery... from 5-10 bb/sec to 10-15 bb/sec improvement. if you are using 20c lipoly batteries, expect 15-20 bb/ sec ROF.

2. buy a decent 20 c battery.
choose from: a. Vislero
b. rhino
c. flightmax
d. maxpower
e. bremenhaus

from experience and what I have researched so far, Vislero has the highest discharge rating but rhino batteries are the toughest according to the RC enthusiasts. I have used rhino, flightmax bremenhaus, TU and firefox, my stock guns ROF improved from 15-20 bb/sec using bremenhaus 20c lipoly to 20-25 bb/sec. using flightmax and rhino. take note that you should not frequently use single firing if you're using these brands, it accelerates burning of your contact points inside the mechbox...

In rapid firing, 2-3 seconds bursts are substantial to limit heating up of your stock wiring, I have just tested my AUG and JG M4A1 using rhino and flightmax, minimal heat was generated. Also, using this method, you would limit the wear and tear of your gears and piston body.

What about the highspeed set ups? (ROF > 30 bb/sec)

TO BE Continued... patients are waiting... hehehe

[gunnersmate]

sir ob meron din po kayo na pang increase ng fps?pa share naman para sa m4.
thanks

[obgyne]

good AM, in response to sir gunnersmate's request on improving fps,

HERE ARE SOME TWEAKS without opening the gearbox:

1. reseal your hop-up, it gives you an additional 10-20 fps if its leaking, if its worn out, replace it.
2. clean your barrel with cloth dabbed with silicone spray lube to improve accuracy and fps (sometimes grease from the gearbox sticks into the inner barrel)
3. modify your hop-up to decrease fps loss due to excessive spin

note that these provide minor increase in fps and accuracy, if you want to increase to >450 fps, you need to open your gearbox, reseal and change springs depending on what target fps you want.

some recommendations:
stock JG V2 and V3 mechbox and cyma V3(black) could handle m140 springs and element m165 springs but the set-up depends on your knowledge on the parts you need to combine so that you won't break the mechbox. do not use metal piston body, piston head and cylinder head, these would tear your mechbox apart. use stock.
you could have maximum of 520 fps. I have done cheaper modifications. as long as your stock motor and lipoly could crank the spring, you only have to seal all possible leaks and use metal teeth with plastic/carbon fiber piston body. no need to buy those expensive kits.

[gunnersmate]

roger that sir ob thanks for the set up regarding increase fps.

[obgyne]

This is a follow-up on high-speed setups for AEGs, icreased Rate of fire to > 15 bbs/sec may necessitate opening your gearbox because not all AEGs are fortunate enough to have a built-in sector chip.

The said chip is mounted on top of the sector gear which delays the timing of airseal nozzle to come in contact with the hop-up rubber, permitting entry of bbs and eliminating dry firing. I included an attachment for our comrades to get familiar with it.

Attachments:

[gunnersmate]

sir ob thanks for this info regarding the function of the sector chip.marami kasing hindi nakakaalam ng function nito(isa na ako doon) with this info malaki ang maitutulong sa player.
thanks sir.