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Trigger help TM Hi-Capa 5.1

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Old February 12th, 2014, 23:33   #16
Trixshooter
 
Join Date: Feb 2014
Quote:
Originally Posted by turok_t View Post
As a reference, I can shoot a full mag + 3 to 5 more bb's. I have a SD frame/SD slide, SD nozzle, AS BBU, and im using the STOCK recoil spring with washers to assist with cycling speed. Im not a big fan of using heavy springs especially on metal slide as it eats away the gas efficiency given the heaviness of the slide already. I prefer to short stroke the gun instead. As long as I can finish all the bb's in the mag with one fill of gas, I'm content.

Here is another reference for you. My friend and I worked on his race gun with plastic slide, custom modded the BBU to shut the gas earlier, short stroked it using Japanese method combined with as many washers/buffer as possible. He was able to get over 2 mags worth of bb's with one fill. The slide cycled so fast that you couldn't even see the slide cycle, and there was barely any recoil. Looked something like this, notice how the red dot barely moves:

Japanese Air Soft Race Guns - YouTube
I got the AIP short stroke spring/washer kit.

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Originally Posted by turok_t View Post
My friend and I short stroked it using Japanese method combined with as many washers/buffer as possible.
I know what buffers are (usually got them in my Les Baer)
But what is the japanese method?
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Old February 13th, 2014, 00:03   #17
turok_t
 
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Join Date: Feb 2009
Location: Toronto, Ontario, Canada
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Originally Posted by Trixshooter View Post
I got the AIP short stroke spring/washer kit.

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I know what buffers are (usually got them in my Les Baer)
But what is the japanese method?
instead of using washers/buffers, they use a tubing that sleeves over the recoil spring to increase the tension. Many players short stroke so much that the slide cycles barely enough to chamber the next round. Dont forget, if your AIP short stroke spring or recoil spring is soo stiff, you will consume more gas trying to pull that slide back.
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Old February 13th, 2014, 00:22   #18
Trixshooter
 
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Okey,
I thought your previous reply implied that shortstroke saved more gas?
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Old February 13th, 2014, 00:32   #19
Kos-Mos
 
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Join Date: Nov 2005
Location: Longueuil (QC)
For your ball-park comparison, I was getting one full + 5-6 BBs out of each mag with my Creation slide.

My new split-slide ones do almost 2 full mags. The "stock" springs are quite a lot stiffer than TM stocks however.

Ideally, without the barrel assembly in place, your slide should slide and "fall" out the front of your frame when you tilt the gun forward a bit (around 15 deg, really not much). That means the fit is loose enough not to slow down the cycle and use more gas.

99% of aftermarket/good quality slides NEED fitting to the frame to cycle properly. My favorite "technique" is to use whitening toothpaste. Remove everything from the frame except the rear-left midframe extension.
Use only the slide, no internals/BBU. Put lots of toothpaste everywhere that can contact and "play" with it for a while, preferably watching a movie or something that do not require your hands.
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Old February 13th, 2014, 02:17   #20
turok_t
 
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Originally Posted by Trixshooter View Post
Okey,
I thought your previous reply implied that shortstroke saved more gas?
Short stroking just means reducing the cycle travel. You can do this by adding washer, spacer, buffer, second stage spring (the increase tension and volume taken up by this spring)

Reducing cycle rate can be achieved by using stringer recoil spring to return the slide back to battery. However a stronger recoil sprin can also reduce cycle rate bc the gas has to overcome a greater force now to pull the slide back. This is why ppl use second stage springs insteads, so that the slide can be pulled back with the same force, but returns back to battery faster.
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