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Tinbum Tuning Kit - HW95

Discussion in 'Anything Airgun Related' started by 177, Apr 17, 2014.

  1. 177

    177 Donator

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    OK, this started off with a factory stock HW95 Luxus in .22 flavour.

    The gun was going to get the standard treatment: stripped, deburred, polished piston, my standard lube (buffing the lube into surfaces, etc).

    Instead, I simply deburred and reassembled to keep things as close to factory stock as I could.

    Power with 15.89gr JSB Exacts was a very consistent 10.42 FPE with only 4 FPS variance over 10 shots. Very impressive for a stock gun. So far, so good :)

    Enter the Tinbnum kit.

    [​IMG]

    What’s in the box ?

    (bubble wrap removed)

    [​IMG]

    Aparently those are instructions in there but, being a bloke, and being as I only had a few minutes last night between getting in and going back out to sort an unruly Linux mail server out :rolleyes: I totally ignored them in favour of getting after it.

    So I quickly tore down the gun and popped the top hat and spring guide in with a light smear of lube.

    Within a few minutes I had the gun back together and 20 odd pellets shot through to settle things down.

    The gun still cocked as smooth as before but this is where things start to get...

    ... interesting...

    Taking the original 10.43 FPE and 4fps variance as a baseline, the gun now shoots like this (fps):

    559
    557
    559
    559
    559
    558
    558
    559
    560

    That’s hovering more or less right on 11 FPE with a very respectable 3 FPS variance over the shot string. If we take the single 557 FPS shot out of the above string we are down to a 2 FPS variance :eek:

    :cool:

    The gun has a nice, soft firing cycle, and this test was conducted using pellets right out of the tin (no sorting, washing or lubing).

    Other than a debur everything in the gun is stock :eek:

    Keep several factors in mind here:

    This is a spring rifle, not a regulated PCP
    This is not a tuned rifle
    The cost of the kit is fractional compared to others currently available
    No components were hurt, injured or discarded during this process ;)
    There is nothing fundamentally wrong with a factory spring and piston seal (assuming the seal is in good shape and wasn't nicked in factory assembly)
    Anyone with simple tools and the available time can install the top hat and spring guide
    The improvement was immediate and very apparent


    I could go on (you all know that by now though ;) ) but the above illustrates a couple of very salient points and is within reach of anyone who can tie their own laces before they leave the house ;)

    Titan and V-Mach mainsprings are all well and good but not everyone wants or needs what they offer and, as a very quick way to immediately improve your spring rifle, this little kit is a great step up in performance.

    An advisory note: I've said it before but it's important to always remember, if you plan on monkeying on with your gun's internals make sure you have access to a chrono before and after any work. Had the above rifle been averaging 11.5 before I started I would probably have ended up going over the limit by installing the kit, so some work to collapse or remove a spring coil would be required.

    Let's keep it on the right side of the limit, shall we ?

    It's a great niche that Nick has started to capture. Not everyone wants or needs a fully blown tuning kit and, for a very nominal cost, this represents a great way of vastly improving your gun's shot cycle and manners.

    I've tried them all, Venom (back when they were still Venom), V-Mach, Welsh Willy, Maccari, Vortek, etc,. but this is very different, giving a cost effective path towards a better mannered gun that takes minutes to install.

    What's not to like ?

    TbT Kits :up: :up: :up:
     
  2. Tinbum

    Tinbum Delusions of adequacy

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    Thankyou for posting your results.:)

    It almost exactly matches the original figures I got with my HW99s when I was developing the kit. Its good to see real benefits for the price of a couple of tins of pellets!
     
    AlistairS, Brandon James and Blackmax like this.
  3. trumpetier

    trumpetier Very Active

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    Do you need the customer to send you there spring Tinny for you to size the guides ?
     
  4. pmb

    pmb Well-Known Member

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    I has an original tinbum pre-production kit - in - get this - an HW95 (.177 cal) previously owned by tinbum himself!

    Just think how much it's gonna be worth once he's died (probably from a pasty overdose). :up:

    I can't wait till I can be bothered to chrono the thing! (excellent / near-amazing results posted by the OP btw :cool: ).

    ATB - Phil :p
     
  5. Tinbum

    Tinbum Delusions of adequacy

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    The simple answer is no! My stock kits are for factory supplied springs, if its a Titan then I have the data, and if its another a measurement with a vernier will do. Which gun are you thinking of?
     
  6. 177

    177 Donator

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    I'm going to try and get a tin or so of pellets through the gun over the weekend to settle it down still further and shoot it in, then chrono again after a few hundred shots.

    If it stays as steady as it is now I plan on benchresting some groups to see how far I can push what is effectively a slightly modded stock gun. Should be interesting to see how tight I can get it to print compared to the usual fully blown springers I tend to shoot.

    I've said it before often enough but you can match and in some cases surpass a tuning kit with the addition of a top hat, if you do a good polish and fettle in the process.
     
  7. Tinbum

    Tinbum Delusions of adequacy

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    I can't remember what stage of development I was at when I did that one, it could be anything in there!:eek:

    There'll be room in the "Tinbum, The Early Years" exhibition for it though........:p
     
  8. trumpetier

    trumpetier Very Active

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    my 99 in .22....and hoping to get another 95 so possibly that depending on how it shoots
     
  9. Tinbum

    Tinbum Delusions of adequacy

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    A stock kit will be perfect. It was a 77 and then the 99 I used to perfect the design. The delrin top hat replaces the piston weight and reduces the recoil markedly.
     
  10. trumpetier

    trumpetier Very Active

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    Could you please pm me your price for the 99 kit please matey
     
  11. HWnut

    HWnut Busy Member

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    Where I can buy that tuning kit?

    EDIT: Found it in your signature Tinbum. ^^
    Too bad you only ship inside UK...
     
    Last edited: Apr 18, 2014
  12. Tinbum

    Tinbum Delusions of adequacy

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    If you check my website you'll see I export too! I've sold some to a guy in Italy this week! All I would say is I can post ten for the same price as one, so ask your mates!;)
     
  13. Darrenm

    Darrenm Donator

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    Fitted to hw80

    Great product, the results were as expected, service was excellent and nothing's too much trouble for this guy...
    80 now running bar 10.4 ft lbs with no twang at all...
    Excellent product at a sensible price...
    Thanks



    QUOTE=Tinbum;1074520]If you check my website you'll see I export too! I've sold some to a guy in Italy this week! All I would say is I can post ten for the same price as one, so ask your mates!;)[/QUOTE]
     
  14. hairyarms

    hairyarms .

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    I had a short stroke kit and a top hat from Nick for my TX200.The chap probably doesn't need any more good comments(your probably sick of that lathe!)but I have had a chance to try it properly now and the kit has made a great gun even better,its doing 11.2 FPE with RWS Superdomes and the firing cycle is super fast.I will probably be getting a tuning kit for my HW 99 aswell.Here are my 3 guns my favorites the middle one a Umarex Perfecta in .177. View attachment 98317
     
  15. Darrenm

    Darrenm Donator

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    Hairy arms
    i was impressed with the TX when I shot it at Kinver ARC; tinbum is working on a short stroke for the HW80, looking forward to trying one....regardless of outcome...
    my 80 shoots like a dream with the kit in and it will be even better once run in..

    I'll be glad when the twang from that 99 stops...only joking!
     
    Last edited: Jun 14, 2014
  16. hairyarms

    hairyarms .

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    Hello Darren,How many guns have you got mate? MY 99 is ok I took it all apart to see what the scraping noise was but couldn't see anything?I just think its the plastic block rubbing the action,the cocking arm on my Umarex Perfecta has scraped 2 big ruts in the action but nobody gives a monkeys about them! Its still going ok though.See you at Kinver one of the days ATB Micah
     
    Last edited: Jun 14, 2014
  17. Darrenm

    Darrenm Donator

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    Mmmmmm....only one ;) wife's sitting next to me...
    see you soon
    Daz
     
  18. ste

    ste Posting Addict

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    Hi Tinbum are you still doing short stroke kits for the tx200 of so what sizes and do you do sizes to order (custom)
    Thanks
    Ste
     
  19. darklord

    darklord Can’t beat a tx200 at 30m

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    Go for it is all I can say I'm v pleased with my prosport kit. A bit of Detroit and a tinbum kit transform any rifle.
     
  20. Tinbum

    Tinbum Delusions of adequacy

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    Yes Steve, I can make any parts you need if you give me some measurements.

    The standard TX short strokes are 10&13mm, but I now also have extensions which use the HW 25mm seal. They are far more efficient than the TX seal and give very good performance gain for little outlay.
     

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