Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > SVA/Legal
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 17th May 2015, 07:57 PM
TheArf TheArf is offline
Senior Member
 
Join Date: Jan 2010
Location: Wrexham North Wales
Posts: 1,041
Default Roll bar fastening

Ok I don't know if this is the right section to be asking this if not please forgive.
Right, I'm looking to fit my roll-bar to the car I have had the bar made by a local company, but we won't go into that it's a sore subject, my question relates to the support bars going backward. Could I fit a couple of suspension brackets to a plate welded in to the two box section uprights, the ones that are vertical between the rear hoops, and then fit a bolt through the tube. The brackets would be welded to the plate.
I seem to remember that they would not allow the original design saying that it needed two bolts to anchor the rear stays.
Does this make sense or does it seem like I am talking a load of twaddle.

Arfon
Reply With Quote
  #2  
Old 17th May 2015, 08:42 PM
Stot's Avatar
Stot Stot is offline
Senior Member
 
Join Date: Nov 2012
Location: Wolverhampton
Posts: 755
Default

Sounds like how I did mine?




Cheers
Stot
__________________
1.6 Mazda B6 : Garrett TBO339 : 420cc WRX Injectors : FMIC : Microsquirt V3 : LC-2 Wideband : Toyota COP : 1.8 ATB LSD
Build Started Jan 2013 : OTR Aug 2014 : Still OTR June 2024
Reply With Quote
  #3  
Old 17th May 2015, 08:47 PM
garyt garyt is offline
Senior Member
 
Join Date: Jun 2014
Location: Dufftown, scotland
Posts: 480
Default

+1 for stots idea afraid I shamelessly copied it but I did move them outboard of D12
Gary
Reply With Quote
  #4  
Old 17th May 2015, 08:56 PM
TheArf TheArf is offline
Senior Member
 
Join Date: Jan 2010
Location: Wrexham North Wales
Posts: 1,041
Talking

That is great, but does it have to have a collar through the tube or can you just put a bolt through it. I have used 40mm tube so there is very little clearence between the tube and the inside of the bracket

Arfon
Reply With Quote
  #5  
Old 17th May 2015, 10:26 PM
PorkChop PorkChop is offline
Senior Member
 
Join Date: Jul 2011
Posts: 394
Default

A crush tube?

Definitely.
Reply With Quote
  #6  
Old 17th May 2015, 10:39 PM
garyt garyt is offline
Senior Member
 
Join Date: Jun 2014
Location: Dufftown, scotland
Posts: 480
Default

definitely a crush tube not just a bolt
Gary
Reply With Quote
  #7  
Old 18th May 2015, 09:27 AM
TheArf TheArf is offline
Senior Member
 
Join Date: Jan 2010
Location: Wrexham North Wales
Posts: 1,041
Default

Then a crush tube it is, but the roll-bar tubing wont crush, if you noticed in the first entry I had trouble with the guy who made the roll-bar, I asked him to make it out of 3 mm wall tubing, he made an executive decision and made it out of 6 mm wall thickness, yes that's 6 mm so the car has doubled its' weight and I predict having to build a f****ing wheelie bar for it. That is why I hate having to outsource things.
Reply With Quote
  #8  
Old 18th May 2015, 11:57 AM
Stot's Avatar
Stot Stot is offline
Senior Member
 
Join Date: Nov 2012
Location: Wolverhampton
Posts: 755
Default

Just cut the suspension mount in half, make the crush tube a bit bigger than the tubing, bolt the suspension mount up to the crush tube so the spacing is set and then weld it to the chassis.

Cheers
Stot
__________________
1.6 Mazda B6 : Garrett TBO339 : 420cc WRX Injectors : FMIC : Microsquirt V3 : LC-2 Wideband : Toyota COP : 1.8 ATB LSD
Build Started Jan 2013 : OTR Aug 2014 : Still OTR June 2024
Reply With Quote
  #9  
Old 18th May 2015, 12:03 PM
flyerncle flyerncle is offline
Senior Member
 
Join Date: Mar 2008
Location: gateshead,near cobbly bit of A1 North
Posts: 3,188
Default

Look at it this way,Lord forbid you ever need to test the roll bar but it will be F ing strong
__________________
Cost : Little as possible.
Thanks : To those who by their generosity my build has progressed.
Its a handmade sports car not a flaming kit car !!!


If at first you dont succeed,avoid skydiving...

No parachute require to freefall,only if you want to do it twice.
Reply With Quote
  #10  
Old 18th May 2015, 12:27 PM
TheArf TheArf is offline
Senior Member
 
Join Date: Jan 2010
Location: Wrexham North Wales
Posts: 1,041
Default

Roll-bar will be ok will just need to re-new the rear shocks every 12 month due to being worn out

Arfon
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 12:33 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.