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mudchemist

Roll Cage Floor Bars - Purpose?

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The caged chassis I bought for my racecar project has some bars on the floor/tunnel. Anyone have any ideas on the purpose of putting these in the design?

They will most likely limit seat placement but I am reluctant to cut something that took that much work to put in...

I am trying to track down the cage builder...we'll see.

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DSCN3075_zps84498850.jpg

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the idea of those bars is to limit torsional twist in the chassis. Not required for a legal cage.

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Dead weight. That kind of design gives none or very little support compared to weight. Straight tubes that create triangles together is way to go.

Tommy

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It appears the door bars are straight. Usually they are bowed outwards to go into the door for more driver room.

I can think of 2 reasons for the floor area.

1. they were going to be extended to accept the seat mounts. so that they are not on the sheetmetal only - floor.

2. I have seen some Saab rally cars - offroad cages with similar floor tubing.

They dont use handbrake but have the rear wheel steering brake mounted to the tubing on the tunnel.

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The way that's done, I'd call it Ballast.

you beat me to it. Are they filled with lead?

t

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At any rate.... Now is the time to cut out those seat mounts and start over fresh. One of my regrets in building my car.

John

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