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Old November 26th, 2015, 14:21   #1
canabubba
 
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Join Date: May 2011
Location: Winnipeg
Recommendation for upping the ROF and FPS in stock mp5

So, I'm in my twilight years of airsoft - sold off a dozen guns, and almost all of my gear. Plan to play 4 or 5 times a year with one nice, simple gun.

I've got a stock CYMA MP5 that I've thrown a swordfish rail onto. I'm running a 7.4v LiPo in a small battery box.

The gun itself is great - never had an MP5 before, and love the platform - but I'd like to bump to ROF and FPS a little, as I play outside. I've never had the gearbox out of it.

It's currently shooting sub-300fps, the rof is pretty low - probably less than 10rps with the 7.4v.

So, my options for rof are to go with a faster motor, or some higher-speed gears.

At the same time, I'll probably bump to an m110 spring.

I'm thinking I might be looking at just a BETTER motor to handle the spring and boost rof a little, plus some higher speed gears to further boost rof, and the spring.

OR, a powerful high-speed motor, new spring, and stock gears might work, too.

I'm very comfortable going into the gearbox - in fact I need to make sure she's shimmed properly anyway.

The challenge is finding a good balance without intimate knowledge of every motor and gear ratio combination out there.....while staying with the 7.4v battery.....that's where YOU guys come in

Yeah, I could go with a higher-voltage battery, but I'd rather not get into a mosfet.......I've been down that road before and built some very high-end guns......but I'm just looking to keep this one simple.

My goal - a nice, quiet gun that won't need much maintenance, decent rof (10-15 rps), decent fps (375-ish).

Cost isn't an issue, but keep in mind this is a $200 gun - let's not get silly.

Suggestions? (and please feel free to be specific as to motor rpm and gear ratios......)
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