How-To: Autococker Suction Timing

SpinDoctor15 · 04-07-2006, 10:50 PM

Many people have asked about questions about how to perform the mythical 'suction timing' that you can achieve with Autocockers. This thread is an attempt to explain how I got my 99STO to perform in 'suction,' and will be the first of a few threads of mine to share some knowledge, my How-To series:

1) Definition
Suction Timing: The state of a paintgun where the action of firing results in a slight inward 'suction' of air. This occurs when the bolt moves backward while the air/paintball travelling down the barrel has not completely exited. The goal is to try and pull the next paintball into the chamber faster.

2) Process
The ultimate goal is to get the firing sequence and recocking sequence of the Autococker extremely close together. I find it is easily accomplished with a Hinge Frame. Step 1 is to time your autococker properly, you can find instructions on that all over the 'net. Step 2 is where you bring the sequences closer together. It's a fine-tuning process by which you: shorten your trigger pull with the internal stop on a hinge frame, back out the hammer lug until the sear releases at the very beginning of your trigger pull, and finally, the 3-way performs the recocking action directly after this previous step.

3) Results
With suction timing, the most visible indicator that you have done it correctly is by firing a few shots with a piece of tissue or kleenex over the feed port and it is rapidly drawn into the port. The merits of this method are probably more myth than magic, as I don't think anyone will really see many benefits. However, it is neat to perform and it seriously shortens your trigger pull for a nice short, quick action. For a video, click the following link. It is me shooting 3 shots on my STO, and as you can see the tissue is drawn into the feed port pretty well. It does not require any pressure of the tissue, simply the pressure difference that pulls it in. Enjoy!

http://s72.photobucket.com/albums/i1...tionTiming.flv

SAW · 04-08-2006, 12:14 AM

Suction timing is a good thing to understand.

Thanks for the writeup.

Brewtt · 04-08-2006, 12:46 AM

Quote:

Originally Posted by SpinDoctor15

http://s72.photobucket.com/albums/i1...tionTiming.flv

I clicked the link... it says "This file no longer exists."

c6quad · 04-08-2006, 12:52 AM

didn't work for me either.

SpinDoctor15 · 04-08-2006, 01:16 AM

Fixed it, sorry I was moving photos to different folders on PhotoBucket. Try it now, enjoy!

SpinDoctor15 · 04-08-2006, 07:31 PM

One thing I haven't worked too much on is softening the trigger, when I go to pull it in this configuration, it's a little heavy to get the sear to release. I think it's because I made the pull length shorter. You should be able to achieve the same results with a slider if the sear release and 3-way actuation are extremely close, regardless of the total length of the pull.

SR_matt · 04-15-2006, 01:37 PM

yep i have put suction timing on my cocker, the main point of it for me doing it is to have 0 blow back.... and i always get the people that go "he has an eblade" from how ffast i can shoot it with the pull. i have also seen some one i know that puut it on his slider framed ST cocker, it worked very well for him.

-matt

HurtCow · 04-16-2006, 03:56 AM

Interesting. I'm wondering if this could be done on a PPS gun (specifically my Stroker). I don't see why not.

SpinDoctor15 · 04-16-2006, 04:15 AM

Curt,

I'm sure you'd have to get the sear release at exactly the right point, but, in theory it should work. Good luck!

sdawg · 06-05-2007, 12:00 AM

Quote:

Originally Posted by SpinDoctor15

For a video, click the following link. It is me shooting 3 shots on my STO, and as you can see the tissue is drawn into the feed port pretty well. It does not require any pressure of the tissue, simply the pressure difference that pulls it in.

Ok, so, I am reviving an old thread...

To determine if your cocker is successfully suction timed as in the video, do you actually have to be shooting paintballs or blocking the barrel slightly in any way?

04-07-2006, 10:50 PM	#1 (permalink)
SpinDoctor15 Spellcheck your post! Join Date: Apr 2006 Location: LA, CA Posts: 1,020	How-To: Autococker Suction Timing Many people have asked about questions about how to perform the mythical 'suction timing' that you can achieve with Autocockers. This thread is an attempt to explain how I got my 99STO to perform in 'suction,' and will be the first of a few threads of mine to share some knowledge, my How-To series: 1) Definition Suction Timing: The state of a paintgun where the action of firing results in a slight inward 'suction' of air. This occurs when the bolt moves backward while the air/paintball travelling down the barrel has not completely exited. The goal is to try and pull the next paintball into the chamber faster. 2) Process The ultimate goal is to get the firing sequence and recocking sequence of the Autococker extremely close together. I find it is easily accomplished with a Hinge Frame. Step 1 is to time your autococker properly, you can find instructions on that all over the 'net. Step 2 is where you bring the sequences closer together. It's a fine-tuning process by which you: shorten your trigger pull with the internal stop on a hinge frame, back out the hammer lug until the sear releases at the very beginning of your trigger pull, and finally, the 3-way performs the recocking action directly after this previous step. 3) Results With suction timing, the most visible indicator that you have done it correctly is by firing a few shots with a piece of tissue or kleenex over the feed port and it is rapidly drawn into the port. The merits of this method are probably more myth than magic, as I don't think anyone will really see many benefits. However, it is neat to perform and it seriously shortens your trigger pull for a nice short, quick action. For a video, click the following link. It is me shooting 3 shots on my STO, and as you can see the tissue is drawn into the feed port pretty well. It does not require any pressure of the tissue, simply the pressure difference that pulls it in. Enjoy! http://s72.photobucket.com/albums/i1...tionTiming.flv __________________ Jason Spin Doc Spin Doctor's Paintball Page - Lots of cool stuff!!! Feedback on MCB - read here Gun Whore, n. Pronunciation Key (gn), (hôr, hr): A person considered as having compromised principles for personal gain of weapons consisting of a metal tube from which a projectile is fired at high velocity into a relatively flat trajectory. russc: "PBN is a business, and that's why they prefer thousands of morons to hundreds of intelligent posters" Last edited by SpinDoctor15; 04-08-2006 at 01:17 AM.

04-08-2006, 01:16 AM	#5 (permalink)
SpinDoctor15 Spellcheck your post! Join Date: Apr 2006 Location: LA, CA Posts: 1,020	Fixed it, sorry I was moving photos to different folders on PhotoBucket. Try it now, enjoy! __________________ Jason Spin Doc Spin Doctor's Paintball Page - Lots of cool stuff!!! Feedback on MCB - read here Gun Whore, n. Pronunciation Key (gn), (hôr, hr): A person considered as having compromised principles for personal gain of weapons consisting of a metal tube from which a projectile is fired at high velocity into a relatively flat trajectory. russc: "PBN is a business, and that's why they prefer thousands of morons to hundreds of intelligent posters"

04-08-2006, 07:31 PM	#6 (permalink)
SpinDoctor15 Spellcheck your post! Join Date: Apr 2006 Location: LA, CA Posts: 1,020	One thing I haven't worked too much on is softening the trigger, when I go to pull it in this configuration, it's a little heavy to get the sear to release. I think it's because I made the pull length shorter. You should be able to achieve the same results with a slider if the sear release and 3-way actuation are extremely close, regardless of the total length of the pull. __________________ Jason Spin Doc Spin Doctor's Paintball Page - Lots of cool stuff!!! Feedback on MCB - read here Gun Whore, n. Pronunciation Key (gn), (hôr, hr): A person considered as having compromised principles for personal gain of weapons consisting of a metal tube from which a projectile is fired at high velocity into a relatively flat trajectory. russc: "PBN is a business, and that's why they prefer thousands of morons to hundreds of intelligent posters"

04-16-2006, 04:15 AM	#9 (permalink)
SpinDoctor15 Spellcheck your post! Join Date: Apr 2006 Location: LA, CA Posts: 1,020	Curt, I'm sure you'd have to get the sear release at exactly the right point, but, in theory it should work. Good luck! __________________ Jason Spin Doc Spin Doctor's Paintball Page - Lots of cool stuff!!! Feedback on MCB - read here Gun Whore, n. Pronunciation Key (gn), (hôr, hr): A person considered as having compromised principles for personal gain of weapons consisting of a metal tube from which a projectile is fired at high velocity into a relatively flat trajectory. russc: "PBN is a business, and that's why they prefer thousands of morons to hundreds of intelligent posters"

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04-08-2006, 12:14 AM	#2 (permalink)
SAW Rec Poster Join Date: Apr 2006 Location: You can't beat the Bengals Posts: 52	Suction timing is a good thing to understand. Thanks for the writeup.

04-08-2006, 12:52 AM	#4 (permalink)
c6quad MCB Member Join Date: Apr 2006 Location: NC Posts: 4,399	didn't work for me either.

04-15-2006, 01:37 PM	#7 (permalink)
SR_matt Rec Poster Join Date: Apr 2006 Posts: 87	yep i have put suction timing on my cocker, the main point of it for me doing it is to have 0 blow back.... and i always get the people that go "he has an eblade" from how ffast i can shoot it with the pull. i have also seen some one i know that puut it on his slider framed ST cocker, it worked very well for him. -matt

04-16-2006, 03:56 AM	#8 (permalink)
HurtCow Endearingly quirky Join Date: Mar 2006 Location: Rocklin, CA Posts: 3,767	Interesting. I'm wondering if this could be done on a PPS gun (specifically my Stroker). I don't see why not.