Welcome, Guest
Username: Password: Remember me

TOPIC:

And finally, Wookie's 82 begins ! 08 Jun 2022 11:09 #868509

  • DoctoRot
  • DoctoRot's Avatar
  • Offline
  • Sustaining Member
  • Oh, the usual... I bowl, I drive around...
  • Posts: 2546
  • Thank you received: 664
Sounds like NK racing knows his stuff. So many monoshock conversions screw this up. If you are a computer guy its relatively easy to draw it out in CAD and move the wheel through its travel to see what the shock relation is. Alternatively, you can remove the spring on the shock and measure the shock as you move the wheel through its travel. 

 
The following user(s) said Thank You: Wookie58

Please Log in or Create an account to join the conversation.

Last edit: by DoctoRot.

And finally, Wookie's 82 begins ! 08 Jun 2022 12:27 #868511

  • Wookie58
  • Wookie58's Avatar Topic Author
  • Offline
  • Moderator
  • Posts: 3384
  • Thank you received: 1919

Sounds like NK racing knows his stuff. So many monoshock conversions screw this up. If you are a computer guy its relatively easy to draw it out in CAD and move the wheel through its travel to see what the shock relation is. Alternatively, you can remove the spring on the shock and measure the shock as you move the wheel through its travel. 


 
Thanks Doc, he was mentored in his early days by one of the founders at "Maxton". I am definitely "anologue" when it comes to CAD etc so the link you have posted will be helpful in checking my work before I burn it in permanently. At the moment I have gone by studying pictures of GSXR in the rest position for my starting point (interestly the previous model has the pivot on the same vertical axis as the swingarm pivot, whereas the "K" model that I have the parts from sets it slightly aft of the swingarm pivot) I have used a matched set of "K" components that were designed to work together so hopefully I have a fighting chance.

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 18 Jun 2022 12:55 #869022

  • Wookie58
  • Wookie58's Avatar Topic Author
  • Offline
  • Moderator
  • Posts: 3384
  • Thank you received: 1919
So today I have managed to get back on the build again. I have managed to get the top shock mount built for conversion. It may look a bit agricultural but with the length of the top mount being what it is to position the shock correctly I decided there would be a lot of torsional stress on the mounting point. With that in mind I have added a tube to transfer that stress into the backbone (I don't fancy the top mount letting go and the shock "hitting me in the nuts" just before the ensuing accident put's me in an ambulance)
Using the link provided by DoctoRot I have taken my measurements and am happy to report I appear to have got it right ( the below chart shows that it ramps up in the first half of the travel then goes linear for the second half) I have 125mm of wheel travel against 130mm quoted for a stock GSXR which is close enough for me and should ensure the conversion doesn't try and kill me   I have added some before and after pic's (I know I need to clean up the welds, they are more functional than pretty  )

 
Attachments:
The following user(s) said Thank You: ghostdive

Please Log in or Create an account to join the conversation.

Last edit: by Wookie58.

And finally, Wookie's 82 begins ! 18 Jun 2022 16:27 #869030

  • ghostdive
  • ghostdive's Avatar
  • Offline
  • User
  • Posts: 399
  • Thank you received: 118
Better agricultural than weak. Nice work. 
1982 KZ750 Spectre - 6 speed swap, BS34s, 18" rear wheel

2001 ZX-6R
The following user(s) said Thank You: howardhb, Wookie58

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 25 Jun 2022 14:14 #869344

  • Wookie58
  • Wookie58's Avatar Topic Author
  • Offline
  • Moderator
  • Posts: 3384
  • Thank you received: 1919
Managed to take advantage of the crappy weather today to make some noise without pissing the neighbours off completely (no BBQ's or garden party's going on  ) I have finished cutting and grinding off all the bits I don't want so I now have a blank canvas to work from

PS: I got a surprise when the shock mounts came off- is this really how the factory built them back then (don't weld that they won't see it when the mount is on  )

 
Attachments:

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 25 Jun 2022 14:18 #869345

  • Wookie58
  • Wookie58's Avatar Topic Author
  • Offline
  • Moderator
  • Posts: 3384
  • Thank you received: 1919
Here is one to get the purist's scowling at my disrespectful chopping 
Attachments:

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 25 Jun 2022 14:54 #869346

  • kzstreetfighter71
  • kzstreetfighter71's Avatar
  • Offline
  • User
  • Atlantic West Coast
  • Posts: 876
  • Thank you received: 250
Any chance you might be selling all the cut offs?
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 25 Jun 2022 15:48 #869349

  • Wookie58
  • Wookie58's Avatar Topic Author
  • Offline
  • Moderator
  • Posts: 3384
  • Thank you received: 1919

Any chance you might be selling all the cut offs?
Yours for the postage pal, I'll even throw in the helmet holder (I've got nothing to bolt it to  )
The following user(s) said Thank You: kzstreetfighter71

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 25 Jun 2022 15:57 #869353

  • SWest
  • SWest's Avatar
  • Offline
  • Sustaining Member
  • 10 22 2014
  • Posts: 22510
  • Thank you received: 2649
The shock mounts might be useful. 
Steve
The following user(s) said Thank You: kzstreetfighter71

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 26 Jun 2022 01:16 #869366

  • kzstreetfighter71
  • kzstreetfighter71's Avatar
  • Offline
  • User
  • Atlantic West Coast
  • Posts: 876
  • Thank you received: 250
To be honest it’s the shock mounts I’m looking for to rescue a z1000 a2 frame, it’s a titled frame that was chopped and never fully rebuilt and then scrapped. I’m confident I can bring it Back from the edge, to near stock..ish…
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)
Attachments:
The following user(s) said Thank You: SWest

Please Log in or Create an account to join the conversation.

And finally, Wookie's 82 begins ! 26 Jun 2022 01:32 #869369

  • Wookie58
  • Wookie58's Avatar Topic Author
  • Offline
  • Moderator
  • Posts: 3384
  • Thank you received: 1919
PM me your address and I will post them out - do you want the battery box to go with the mounts (it's rusty but salvageable)
The following user(s) said Thank You: kzstreetfighter71

Please Log in or Create an account to join the conversation.

Last edit: by Wookie58.

And finally, Wookie's 82 begins ! 26 Jun 2022 03:13 #869371

  • kzstreetfighter71
  • kzstreetfighter71's Avatar
  • Offline
  • User
  • Atlantic West Coast
  • Posts: 876
  • Thank you received: 250
I wont say no to any usable part mate, i have  media blaster and a powder coater, most parts are only an hr or 2 from going from junk to useable and i appreciate the offer PM sent.
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)

Please Log in or Create an account to join the conversation.

Powered by Kunena Forum