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Yes or no? Systema high speed with m120 spring?

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Old October 28th, 2005, 21:29   #1
pinoyboy
 
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Yes or no? Systema high speed with m120 spring?

I'm running a G36 with hurricane kit and deep fire full metal tooth piston. My stock gears just broke and just wondering has anyone ran an m120 with high speed gears? Oh and if you have any other suggestions, let me know! Thanks in advance
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Old October 28th, 2005, 21:35   #2
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get a bigger battery. get an enlarged foregrip to hold bigger battery. go 9.6v 2100mah nicad for that m120. you can use regular cut systema gears too. they will workk just fine. put in metal bushings and metal spring guide. you could also just buy the ftk from systema too, probably have everything you need and more (except battery).
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Old October 28th, 2005, 21:42   #3
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http://www.arniesairsoft.co.uk/?filn...1c/springs.htm
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Old October 28th, 2005, 21:43   #4
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ok, that sounds good, standard ratio with a 9.6. appreciate it
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Old October 28th, 2005, 22:06   #5
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M120 + high speed gears = metal mush in the mechbox.
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Old October 28th, 2005, 22:22   #6
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mcguyver vs Arnie airsoft's spring guide! Who will come out on top? Will pinoyboy find out the hard way? Stay tuned!
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Old October 28th, 2005, 23:32   #7
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so what exactly are you saying there, saint.
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Old October 28th, 2005, 23:51   #8
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That you're very wrong and probably shouldn't be giving any more advice.
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Old October 29th, 2005, 01:03   #9
ILLusion
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I don't see what's wrong with mcguyver's suggestion. It follows Arnie's guide.

Although, like Arnie's guide, I would strongly suggest AGAINST using high speed gears for an M120. It would be a good way to kill your motor in a short period of time.
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Old October 29th, 2005, 01:15   #10
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Quote:
Originally Posted by harleyb
That you're very wrong and probably shouldn't be giving any more advice.
Didn't quite mean it that harshly. But the guide on Arnie doesn't "suggests" high speed gear for anything above a M100. Now if that's 'doesn't suggest' because it'll turn your gears into mush within one hicap or because it'll after a dozen hicaps, hell if I know. If macguyver's advice is based on personal experience, then there's something to that. But if not, Arnie's guide would seem to carry more weight in this case. I mean, if the spring in question was to fall in between the M100 and M120, maybe you can disregard Arnie a little more. But M120 is a full spring removed from the highest rated spring regarded by Arnie as fast gear safe... *shrugs* I'm just reading the guide.
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Old October 29th, 2005, 01:20   #11
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oops, I missed the part where mcguyver said:

Quote:
Originally Posted by mcguyver
they will workk just fine.
regarding the high speed gears.

Okay, mcguyver. that's stupid advice.

lol

it'll work, but as I've said, your motor won't last too long. You're putting added stress on it that it wasn't meant to take.
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Old October 29th, 2005, 02:26   #12
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pinoyboy go to FAS.
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Old October 29th, 2005, 09:21   #13
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This is my pet peeve; if you have NEVER done it, or KNOW what the hell you're talking about from experience, then Shut Up.

Suggesting an option that will break a gun is Stupid. Period.

There's tons of stuff I dont know, so I dont reply. Do the same.
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Old October 29th, 2005, 11:35   #14
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Gee Whillikers, I guess there must be a reason that Systema engineers chose to put only an M100 spring (and not an M120) in the High Speed FTK's....
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Old October 29th, 2005, 13:16   #15
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you don't have to use high torgue gears with an m120. if you were going to use a 210%pdi or something like that i would say maybe, but not necessary. a good quality gear will go along way without failure. the key is in the assembly. alot of guys use the g&p guns with 210% pdi springs with reinforced gears and many thousands of rounds and no gear failures. i've removed 4 sets of "super torque up helical cut" systema gears in the last month that were toast. some people think they are the shit, but you don't realize how finnicky the are. you have to pay special attention to the gear shaft/bushing tolerance and shimming because any "wobble" gear or lateral movement relative to the other gears will destroy them. arnie's guide is interesting if you have no experience in a gearbox but that's it. use common sense and quality workmanship and you really won't have any problems. my g&p uses an eg700 motor with zero pinion gear wear and unnoticable gear wear. and as the only "gun doctor" in my area, i see every kind of gun and every kind of problem. and don't think that it's only 1 or 2 guns here and there. i have 5 on my bench currently awaiting parts/owners decision and several more in que. so i think that qualifies my decision more than some guy that says "there must be a reason arnies says that" and you haven't taken a gun apart before. i never advocate the use of stock gears, plastic bushings or stock piston/ head sets or plastic spring guides. and i never let a gun go without a few thousand rounds thru it in harsh fire conditions if i'm not satisfied it will be reliable. and i have never had a failure after my test regimen. and my work i do because i enjoy it and it's not for profit.

as for motor life in my first post in this thread i recommended increasing battery voltage and capacity. for those who have not read my previous posts regarding batteries and motors let me repeat it. as illusion has said you will eventually kill your motor IF you keep to the 8.4 volt battery and here's why: a motor is not turning but is given voltage and current under load ( the spring in an aeg provides this load) will draw massive current (maybe 100 amps) and the motor will fry in a split-second. as the motor turns it generates it's own magnetic flux that in turn generates current in the motor windings that OPPOSES the original current drawn by the motor. this is called counter-emf. as the motor speed increases this counter-emf increases until the synchronous speed of the motor is reached and counter-emf nearly equals current drawn by the motor at zero speed. the net result is a small "running" current that is easily manageable by the motor. altering speed up or down will alter c-emf up or down and running current up or down. increasing the load on the motor by installing a stronger spring means more current will be drawn by the motor upon start-up, and lower speed will result from the motor. this lower speed means lower counter-emf which means the running current of the motor will be higher and eventually it will fail. increasing voltage to the motor will increase its speed and thus increase the counter-emf in the motor, resulting in lower running current and increased motor life. those who don't understand these principles (taught in every trade school and university enginnering class in this country) or frankly don't believe them have no place offering advice pertaining to this subject. if you think i'm wrong, go to university, spend four years in trade school and 15 years working in this field and then you and i can have an intelligent conversation on the subject.
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