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TX200 Vortek or V Mach ?

Discussion in 'Anything Airgun Related' started by Hoodster, Jun 4, 2014.

  1. Hoodster

    Hoodster Engaging Member

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    Now I'm happy my tx200 hc is working fine its time to open it up screw the warranty and have a play so short stroke, polish and a drop in tuning kit.
    I was just going to order the vortek but then I thought I would just pose the question which one v mach or vortek would one or the other be more suited to short stroking or is it just personal preference.
    I am leaning towards the v mach now because I can get it quicker.
     
  2. zug69

    zug69 Well-Known Member

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    Hi, I have a tx 200 Sr tuned by venom years ago ( vmach now ), it is blisteringly accurate and still running no problems after 15 years. Steve Pope is also a very helpful chap if you require assistance.
     
  3. Hoodster

    Hoodster Engaging Member

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    Yeah because help is closer at hand is another reason I'm leaning towards the vmach but I'm wondering if the short stroking will have an effect on how well the kit works would I be better off doing one or the other ?
    I'm wondering whether a new top hat spring guide and the short stroke kit with the original spring is worth bothering with I know I'm going to try a kit sooner or later so maybe best to do it all together.
     
  4. Trouserferret

    Trouserferret Donator

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    Have you considered Tinbum's kit from here?

    The only thing he doesn't offer is the spring, of which you can pick and choose. From what I gather, the TX's spring ain't half bad to begin with...

    He provides spring guides, top hats, short stroking, the lot. Good bits of kit at a very reasonable price, and make a very noticable difference.
     
  5. Cymru-Dave

    Cymru-Dave Donator

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    Stupid question alert... What is short stroking?
     
  6. Trouserferret

    Trouserferret Donator

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    Basically adding a nose to the piston to reduce the volume available in the cylinder. Ends up with a very quick lock time.

    Couple that with some preload and you have a quick action with round about the same power.
     
  7. Hoodster

    Hoodster Engaging Member

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    in its simplist terms reducing how much the piston moves back so hence shoots forward quicker.
     
  8. Cymru-Dave

    Cymru-Dave Donator

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    Ok so the chamber has a larger volume than required but with a weaker spring the forward motion is slowed but results in sub 12, when short stroked the chamber volume is reduced (by this nose or extension on the piston) and a stronger spring resulting in faster and shorter movement of the piston to compress the air quicker to get sub 12, is that about right?

    sorry to to the OP for interrupting the thread.

    preload ad has same effect as a more powerful spring I presume?
     
    Last edited: Jun 4, 2014
  9. Trouserferret

    Trouserferret Donator

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    Seems bang on, Dave.

    A lot of guns were tuned up to export levels, then fitted with parts to keep 'em sub 12, resulting in slightly boingy rifles.

    Short stroking is a good way to address this.

    And yes, preload addresses the spring issue by creating pressure on spring whilst it's locked, giving it a bit more oomph.
     
    Last edited: Jun 4, 2014
  10. Hoodster

    Hoodster Engaging Member

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    It is tinbum's short stroke kit I'm looking at getting .
     
  11. thevoid

    thevoid Posting Addict

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    Another one to consider is wonky donkey, I shot a few of his guns Sunday and they were superb, I know that the TX is one of his specialities
     
  12. Trouserferret

    Trouserferret Donator

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    I'm sure someone will correct me if I'm wrong, but I think Tinbum's kit was built from the ground up to work with the standard spring. It's a proper drop-in that shouldn't require much fettling.

    Nice piece of kit, well thought out and executed.

    Edit: I'd consider the whole kit if the spring guide and tophat aren't in the piece you're looking at.
     
    Last edited: Jun 4, 2014
  13. Hoodster

    Hoodster Engaging Member

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    well that would sort the dilemma on whether to vortek or vmach :)
     
  14. Hoodster

    Hoodster Engaging Member

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    I hadn't considered wonky donkey but will give it a look thx.
     
  15. Tinbum

    Tinbum Delusions of adequacy

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    Thanks!:)

    Some things to consider... My 10mm extension works with the standard spring with standard internals (or my drop in kit if you want) with very little added preload. It reduces the stroke by just over 10% and is probably the easiest, cheapest and most accessible short-stroke option if you want to do it yourself.
    My 13mm extension is the longest extension you can use without effecting the operation of the ABT mech. It has a bigger effect on the shot cycle, but with the extra lost volume some guns may struggle powerwise using the standard spring.

    However!! The Titan no10 spring has the same ID as the Air Arms original and is fully compatible with my Drop-in kit. That means (if you are capable of cutting and finishing your own spring) you can get a delrin guide set, Titan spring and short stroke extension for under £50 if you were so minded!

    And you could fit it this weekend........;)

    Also, there is no point comparing my home tune parts to the specialist tuners who take your gun and do it all for you. The guns they do are simply brilliant! But if you want someone else to do all the work, you wouldn't be looking at my kits anyway...:)
     
    Last edited: Jun 4, 2014
  16. Hoodster

    Hoodster Engaging Member

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    Well I think I'll stick with the original spring for now and try your drop in kit and 10mm piston extension and see what results I get with it.
    I like working on and improving my own rifles if I was that desperate to have a better rifle rather than pay someone £200 to £300 I would just buy a better rifle :)
     
  17. hairyarms

    hairyarms .

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    The 13mm extension I bought from Tinbum gave 11.4fpe with his delrin top hat, the standard spring and the two standard metal washers. I took it to my local club and ran half a tin of pellets through it.I like the fast firing cycle but I can imagine some people wont like it,To be honest accuracy wise I cant tell if its any better,it was pretty good before.
     
  18. Hoodster

    Hoodster Engaging Member

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    I would be looking for power levels around 10.5fpe I don't use my springers for hunting and for target closer to 10fpe imo is smoother.

    I did read on another forum that its recommended to play with piston weights and transfer port size if your going beyond 10mm of piston extension to counter act piston slam.
     
    Last edited: Jun 4, 2014
  19. timmytree

    timmytree Pro Poster

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    I've had a Prosport for about 4 years now and put over 100,000 shots through it. It's been fitted with a well known drop in kit in the past, resprung once at ridiculous cost. I finally realised that all the gun needed was a bit of TLC on the original parts, it now shoots sweeter and more accurately than ever.
    Play around with tophats and guides, washers etc, that's all you need with some decent grease. £70 + kits are just money down the drain for a £14 spring and 2 bits of delrin or plastic knocked up in a lathe. The easiest way to make a springer run sweet is to reduce the power.
     
  20. hairyarms

    hairyarms .

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    I aint going to mess with any of that,if its not as accurate as before I will just take the extension out and put the weight back in.P.S I only put one washer back in and it is doing 11 FPE Now the same as my 99.
     

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