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Thread: Mainspring data thread

  1. #46
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    Quote Originally Posted by bigtoe01 View Post
    posted this in the other thread...will place it here also

    Titan springs grouped by wire size.

    [CODE]

    Model # OD ID Wire Coils Length
    TS001 21 14.5 3.25 31 280
    TS003 20.8 14.73 3.26 34 304
    TS009 21.35 14.75 3.3 27 280
    TS010 21 14.8 3.1 27 230


    TS005 19 13.19 3 32 290
    TS006 19 13.3 2.92 39 341
    TS007 20 13.8 3.3 30 255
    TS008 20 13.8 3.3 34 295
    TS011 18.8 12.8 3 31 230


    TS002 22.7 15.5 3.65 30 291
    TS004 22.62 15.64 3.65 28 252
    TS012 22.8 15.6 3.65 41 410

    [/CODE]


    Got this off a bagnall and kirkwood listing



    Model Outer (mm) Inner (mm) Thickness (mm) No. Coils (mm) Length (mm)
    No. 1 21 14.5 3.25 31 280
    No. 2 22.7 15.5 3.65 30 291
    No. 3 20.8 14.73 3.26 34 304
    No. 4 22.62 15.64 3.65 28 252
    No. 5 19 13.19 3 32 290
    No. 6 19.7 13.3 2.92 39 341
    No. 7 20 13.8 3.3 30 255
    No. 8 20 13.8 3.3 34 295
    No. 9 21 14.75 3.3 27 280
    No. 10 21 14.8 3.1 27 230
    No. 11 18.8 12.8 3 31 230
    No. 12 18.912.6 2.9 36 295
    No.13 19.4 13 3.1 39 340

    No.14 22.7 15.4 4.12 37 356

    No.15 17.53 12.1 3 33 254
    Hatsan 19.55 13.4 3.0 37 310mm

    5/25 12.5 9.5 1.6 28 240mm
    Last edited by hmangphilly; 01-05-2017 at 08:42 AM.

  2. #47
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    grr spent ages getting those spaces too

  3. #48
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    Thank you for that updated information.
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  4. #49
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    Quote Originally Posted by hmangphilly View Post
    Got this off a bagnall and kirkwood listing



    Model Outer (mm) Inner (mm) Thickness (mm) No. Coils (mm) Length (mm)

    No. 12 18.9 12.6 2.9 36 295
    Not sure where you got those figures from but the other Titan listings says different as well as the Bagnall and Kirkwood site.

    http://bagnallandkirkwood.co.uk/prod...un-mainsprings



    Pete
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in

  5. #50
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    Quote Originally Posted by look no hands View Post
    Not sure where you got those figures from but the other Titan listings says different as well as the Bagnall and Kirkwood site.

    http://bagnallandkirkwood.co.uk/prod...un-mainsprings



    Pete
    That website info is wrong

    Those other figures taken from their e b ay listing .

    I promise you a no 12 is not 22.8 od and 3.65 mm
    It's just under 19 od and 2.9

    Don't know about the others but the figs I posted are a copy paste from the auction site listing .
    I know they look Mickey Mouse and home made but that's just how they came out of my laptop.

    If any one knows how to screen shot that page and put it up it might Have more credibility.

  6. #51
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    Quote Originally Posted by hmangphilly View Post
    That website info is wrong

    Those other figures taken from their e b ay listing .

    I promise you a no 12 is not 22.8 od and 3.65 mm
    It's just under 19 od and 2.9

    Don't know about the others but the figs I posted are a copy paste from the auction site listing .
    I know they look Mickey Mouse and home made but that's just how they came out of my laptop.

    If any one knows how to screen shot that page and put it up it might Have more credibility.
    That's interesting as I need a longer spring with the same figures as no11 and the no12 would be almost perfect, I have a Welsh Willy tuning kit in my short stroke project rifle I'm doing at the moment and I know he uses Titan springs, I measured the original spring that came in the kit and the figures where the same as a no11, so I bought another no11 spring hoping it would be longer but the new spring is exactly the same length (even though the figures in the list said it was longer), now if the figures for a no12 spring are as you say then that is going to be a longer spring which will help with upping the power, I think I'll go measure the no11's length and see if it's under 295 (just in case the figures in the list is wrong) and then go from there.

    Many thanks for the info.

    Pete

    PS just measured the no11 spring I have and that comes out at 235mm, the list says 230, so even that bit of info is wrong.
    Last edited by look no hands; 14-05-2017 at 03:17 PM.
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in

  7. #52
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    Yep got a brand new , no 12 here that measures 305 compared with the list at 295 and a no 6 that measures 345 compared with the list at 341

    i think production tolerances come into play here . IT might be sensible to give some latitude to the quoted numbers.

    Of course the makers can control the gauge of wire that they use , so the listed size for that should be pretty close ( to give wire sizes down to 0.01mm seams a bit daft though ), the no of coils would be within their control too.

    They would probably be affected by manufacturing tolerances on OD , ID and length, although i agree it's curious how they come to od vs id numbers that don't correspond to 2 x wire thickness .....

    I cant answer that and It's a bit of a fudge to say that the figures should be taken as approximate. That is how i use them .

    These are not my figures . I found them on the listing . I have been using them as approx rather than absolutely perfect , and they have served me adequately so far.

    The main reason for posting these numbers was to highlight the error about the no 12 dimensions in the original list .
    I had "spoken " to 2 experienced tuners who were both ignoring the 12 because they were using the incorrect numbers in the original table .

  8. #53
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    Quote Originally Posted by look no hands View Post
    That's interesting as I need a longer spring with the same figures as no11 and the no12 would be almost perfect, I have a Welsh Willy tuning kit in my short stroke project rifle I'm doing at the moment and I know he uses Titan springs, I measured the original spring that came in the kit and the figures where the same as a no11, so I bought another no11 spring hoping it would be longer but the new spring is exactly the same length (even though the figures in the list said it was longer), now if the figures for a no12 spring are as you say then that is going to be a longer spring which will help with upping the power, I think I'll go measure the no11's length and see if it's under 295 (just in case the figures in the list is wrong) and then go from there.

    Many thanks for the info.

    Pete

    PS just measured the no11 spring I have and that comes out at 235mm, the list says 230, so even that bit of info is wrong.

    got a brand new 12 and 6 here Pete if you want have a measure up . you're only down the road.

    Oh by the way ,..... you want to use a longer spring to up the power ??........are you sure ?

  9. #54
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    Quote Originally Posted by hmangphilly View Post
    got a brand new 12 and 6 here Pete if you want have a measure up . you're only down the road.

    Oh by the way ,..... you want to use a longer spring to up the power ??........are you sure ?
    I have a no12 hopefully on it's way, so I'll see what I'm up against when it arrives, all this short stroking is witchcraft to me, I did get some tuning advice from Jon Budd last year when I first got the rifle and he suggested getting a longer spring to help up the power, the trouble is there are so many different things that can effect power and the such and I just go by what other people who know what they are talking about, I may try a little weight in the piston first to see what that does and then muck about with the longer spring.

    Pete
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in

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  11. #56
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    Well my no12 spring turned up today, it measures 300mm long and has 34 coils, so it's still different than the list but at least it fits the rear guide perfectly, that's all that matters at the moment.

    Pete
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in

  12. #57
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    Hi all,

    I was talking to a gunsmith who sells and uses Titan springs and he showed me a revised list after I had problems with a no12 spring being the wrong size according to the popular Titan list that is on the internet, the list below is what has been measured by the gunsmith I talked to.

    NO- OD - ID - Wire- Coils- Length

    01- 21.0- 14.5- 3.2- 31- 280
    02- 22.7- 15.5- 3.6- 30- 291
    03- 20.8- 14.7- 3.2- 34- 304
    04- 22.6- 15.6- 3.6- 28- 252
    05- 19.0- 13.1- 3.0- 32- 290
    06- 19.7- 13.3- 2.9- 39- 341
    07- 20.0- 13.4- 3.3- 30- 255
    08- 20.0- 13.4- 3.3- 34- 295
    09- 21.0- 14.7- 3.3- 27- 280
    10- 21.0- 14.8- 3.1- 27- 230
    11- 18.8- 12.8- 3.0- 31- 230
    12- 18.9- 12.6- 2.9- 36- 295
    13- 19.4- 13.0- 3.1- 39- 340
    14- 22.7- 15.4- 3.6- 37- 358
    15- 17.5- 12.1- 2.3- 33- 254

    All measurement in millimeters.

    Hope it helps.

    cheers

    Pete
    Last edited by look no hands; 06-02-2019 at 05:50 PM.
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in

  13. #58
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    Cheers for the update, Pete.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
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  14. #59
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    Quote Originally Posted by TonyL View Post
    Cheers for the update, Pete.
    That's alright mate, shame it took you 7 months to notice it

    Pete
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in

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    Quote Originally Posted by look no hands View Post
    That's alright mate, shame it took you 7 months to notice it

    Pete
    Sorry Pete. But we've had a full and lively Boinger Bash season to distract us.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
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