Roadster Builders
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Stiffness
http://roadster-builders.co.uk/viewtopic.php?f=34&t=411
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Author:  ste [ Thu Jul 04, 2013 4:13 pm ]
Post subject:  Stiffness

What are people's thoughts on the triangulation at the rear end, specifically, the diff/suspension area.

I'm contemplating cross bracing behind the diff and also maybe at the front, behind the steering rack

Not got my book here so can't give the tube names but the GBS zero has the front cross as can be seen here

Image

Author:  robo [ Thu Jul 04, 2013 4:32 pm ]
Post subject:  Re: Stiffness

The guys building the roadsters in auz have to pass a torsional chassis twisting test. The roadster fails this test but it is fixed with more bracing around the bulkhead area, this is the area that was found to be the weak point. This is why some people like to leave in the lower tube that goes under the bellhousing.

bob

Author:  ste [ Thu Jul 04, 2013 10:11 pm ]
Post subject:  Re: Stiffness

yes, you can also see triangulation on that chassis at the botom of the footwells

Author:  The V8 Files [ Fri Jul 05, 2013 4:07 pm ]
Post subject:  Re: Stiffness

I have concerns with my bulkhead area, I was thinking of using a thicker footwell plate to help compensate.

Author:  robo [ Sat Jul 06, 2013 10:22 am ]
Post subject:  Re: Stiffness

Quote:
I have concerns with my bulkhead area, I was thinking of using a thicker footwell plate to help compensate.
There is a bit in this Bruce, talon reckons that mig welding all the floor panels in steel rather than using ali and rivets adds a lot of rigidity to the chassis.

Bob

Author:  robo [ Sun Jul 07, 2013 8:52 pm ]
Post subject:  Re: Stiffness

I would have thought that the addition of the double roll over bar would add considerable stiffness to the chassis. Just thoughts.

Bob

Author:  The V8 Files [ Mon Jul 08, 2013 8:35 am ]
Post subject:  Re: Stiffness

Yes definitely think a one piece steel floor pan is the way to go.

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