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Hw80 .25 Short Stroke ... Poke To Tinbum

Discussion in 'Technical' started by Trampilot, Jun 11, 2018.

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  1. Trampilot

    Trampilot Keyboard Hero

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    Hi all

    With my 95 now on its way out I can begin planning the replacement, a .25 HW80

    Given the huge swept volume of the 80 and the power efficiency of the .25 has anyone used the world famous Tinbum short stroke heads and if so what size did you use? I'm leaning towards the bigger one because its a .25.


    Also the mainspring...

    Usually I use a Titan but am a little cautious because they may be too powerful or end up too short, thus creating piston bounce. I did read about someone using the spring from a 77/97 instead. Or should I stick with the factory one?

    The idea is to relube and smooth things out and create a shorter lock time rather than the sloppy one I imagine it may have - hence using an after market spring.

    Advice and thoughts welcome...
     
  2. shauny

    shauny Top Poster

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    better off lightening piston keeping stroke as is. std hw spring with decent guides will work well enough.
     
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  3. Rincewind666

    Rincewind666 Moderated user

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    Agreed. My hw80 isn't sloppy at all. And no twang with the standard guts inside . . . Only thing done to it is barrel shortened and shroud put on. HW spring will do fine (tinbum uses them) . Mines .22 but would really love it on .20 or .25 o_O
     
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  4. Rincewind666

    Rincewind666 Moderated user

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    Also how is you 95 on it's way out???? I love a good project gun;)
     
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  5. Trampilot

    Trampilot Keyboard Hero

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    Ah not on its way out in that sense, just out the door. It's in very good condition. Just that its barely had any use at all in the last few years. If I want a .22 break barrel the 80 comes out. It just isn't going to get a look in anymore and as I want to complete my 80 set. Tried putting a shorter mod on it to sort of emulate a 99s to give me something different, but it just isn't different enough.
     
  6. Trampilot

    Trampilot Keyboard Hero

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    Not sure about lightening it. I don't want to mess around with that given my lack of toolages. I've got some hand tools and a power drill. Unless I can use a strimmer ?!

    I was going to negotiate with Sandwell to see if they'd be happy doing a stage 1 and also fitting the short stroke head but I fancy a go. And they might say b****r off. I did quite a nice job on my 77 so an 80 should be a pleasure as well.
     
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  7. Rincewind666

    Rincewind666 Moderated user

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    Very easy to work on the 80 mate. And a real pleasure too. I do see what you mean about the 80 now being your go to gun as I have a pro sport in .22 also and they weigh the same but since getting my first hw80 I can't seem to put it down. Mine has had barrel done so feels more balanced. I'm yet to strip it since buying it as it preformed amazing from the start. But I think a strip and lube can only make this gun better. And again this has had nothing done to the insides at all but I find the shot cycle smooth quick and next to no recoil. My short stroked pro sport just doesn't seen to fire as nice as the 80
     
    Trampilot likes this.

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