Results 1 to 4 of 4

Thread: Velocity adjustment issues

  1. #1
    Junior Member
    Join Date
    Aug 2021
    Posts
    2

    Velocity adjustment issues

    Hello, this is my first post on these forums but I need some help with an autococker. I'm new to autocockers but have a lot of experience with Spyders, Intimidators, and some of the more oddities like FASORs.
    I did first check the FAQ but nothing came up under "velocity".

    I have an Inceptions Twister that I recently took to a game this past Saturday and I could not get the velocity above 260fps. The weird thing is I tested it at home the night before and it shot 278fps without any changes. I used a little oil in the ASA and cycled it a few times. The bolt is clean, and the cycling looks good to me which I think is factory set.
    I'm using a Ninja v2 pro 77 superlight at 550psi output.

    I tried the Stella .680 and .685 backs which made no difference to the velocity at the field.
    I turn the velocity adjuster all the way out and all the way in, and somewhere in between and the FPS was between 243-262 fps, not really caring where I left the adjustment at. I ultimately left it a few turns in from all the way out.
    I did not change anything at the HPR or LPR.
    It should be factory stock.

    I still played with it all day, and it never once broke a ball, or stopped cycling. It shot smoothly all day.

  2. #2
    Insider PBSteve's Avatar
    Join Date
    May 2012
    Location
    Los Angeles
    Posts
    3,081
    That can happen for a few reasons. Here?s a few:

    Depending on how the gun was assembled, if the valve jam nut is backing out it can cause low velocity.

    Your 3-way timing might be a bit tight, causing the bolt to lift the hammer before it?s fully depressed the valve.

    Your LPR might be a bit low, causing the bolt to shift rearward during the cycle. Pretty unlikely if it?s cycling properly on stock springs, I?ve only seen this on MQs and super-light springs.

    The IVG should be 2-3 turns in, and HPR adjusted for velocity. If you?re using stock hammer/valve springs that should be fine and the hammer and IVG shouldn?t be the issue.

  3. #3
    Junior Member
    Join Date
    Aug 2021
    Posts
    2
    Thanks, for these what is the correct way to adjust the HPR?

  4. #4
    Insider PBSteve's Avatar
    Join Date
    May 2012
    Location
    Los Angeles
    Posts
    3,081
    Clockwise (turning the screw in) should turn the hpr setpoint pressure down.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •