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Spring Comparison Chart - Updated April 1st, 2006

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Old October 29th, 2008, 10:51   #121
Tankdude
 
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I have one if you want to try.

~evil laugh~

Kiss your gears good bye.
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Old October 29th, 2008, 11:21   #122
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Originally Posted by Hammer13 View Post
Hi there, I was wondering if you have any info on a m170 spring for an m4a1, the guy I bought it from says its modded but im not sure how much and I think this spring will improve my distance pretty good.
Hope you have a good gearbox casing.... That kind of power will surly destroy a standard V2 gearbox...
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Old October 29th, 2008, 15:46   #123
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crap so basically i need to figure out what the hell he put in there then. any suggestions as to what would would work best?
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Old October 29th, 2008, 15:52   #124
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Depends on what you want it to shoot and what your local field limits are (most around here are 400fps w/ 0.20g bbs).

A pretty generic answer is to stick a Modify M110 spring in it. That'll put you in the mid to high 300's.
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Old October 29th, 2008, 18:20   #125
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im already in the high 300's, but one of the guys I play with uses a 170 and his stays acc to 400. I'll look into it farther, Thanks for the help
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Old October 29th, 2008, 18:27   #126
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Systema M120.
It should set you to about 400-410.

A bit on the limit, but with the right parts, you can get it to 398ish.

You can also use a JG stock spring with a TM piston head. The spacer in the piston makes for the drop of power. That is what I am using. 398 fps on the spot.
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Old October 29th, 2008, 18:32   #127
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your fps also depends on barrel length. There has to be a long enough barrel to get the maximum power out of a spring. With an m110 my m14 shoots about 380. With the same spring my MP5 shoots about 330
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Old October 29th, 2008, 22:00   #128
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im already in the high 300's, but one of the guys I play with uses a 170 and his stays acc to 400. I'll look into it farther, Thanks for the help
That's a 170%, which is very different from an M170.
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Old October 30th, 2008, 15:37   #129
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BAH! so a 170 spring is differnet from an m170? goddamn I hate springs pretty sure im just gunna leave my gun the way it is for now lol, I dun wanna break my first gun!
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Old October 30th, 2008, 15:50   #130
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There's a lot of info on springs...but the short version is..

some springs are labeled as %...where 100% is ~290fps w/ 0.20 (aka "stock", TM, m90)
---so, approximately, a 110% spring is 290 + (10% of 290) 29fps = ~320fps

some springs are labeled in Meters/Second...where a M90 is roughly "Stock" = 90m/s * 3.3 ft/m = 297fps
---so, a M110 spring is 110m/s * 3.3ft/s = 363fps

170% = 493fps
M170 = 561fps

The gotcha is that it's all approximate and dependent on quality/precision of your parts and assembly. The other gotcha is that some spring makes are just guestimates and may vary wildly between batches.

Think I got that all right....
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Old October 30th, 2008, 16:51   #131
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im already in the high 300's, but one of the guys I play with uses a 170 and his stays acc to 400. I'll look into it farther, Thanks for the help
Are you hammer from bcac? and who would this person using 170 spring?
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Old October 30th, 2008, 17:36   #132
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BAH! so a 170 spring is differnet from an m170? goddamn I hate springs pretty sure im just gunna leave my gun the way it is for now lol, I dun wanna break my first gun!
Well... the entire purpose of this thread was to point out differences in these springs...
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Old October 30th, 2008, 18:26   #133
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ok I think I got it now, Thanks for the help here guys, and Damage, yes in from bcac and I dont know everyones name atm lol but i think it was linden, i unno, i also dont know wtf he was talking about when he was talking with me and gem, I asked what was in it and all i heard was numbers and letters mixed in with a few words. :?
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Old October 30th, 2008, 18:32   #134
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linden's the guy that has insane AEGs that fire fireballs.

his PTW is off the charts, that one was semi only because it shot so hard.
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Old October 30th, 2008, 18:39   #135
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I am betting what you heard is PDI 170%.
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