Craig's Xe track Nova (pb fixed to page 10)

[8valve-craig]

Turbojolt

How thick was the steel you used for your spacer plates and the box section
for the seat rails?

Seat rails are 25mm x 25mm x 2mm

Spreader plates for seat rails are 2mm

All of the cage feet and spreaders have wall thicknesses of at least 3mm, and are constructed in a way that would transfer any downward force into the floor.

[turbojolt]

thanks mate, im just trying to price up how much doing the seat rails like that will cost me

[8valve-craig]

A 2m length of that 1" box section cost me £6, and the gap you are bridging is near enough 500mm, so if you only did the left to right bars for both seats and got them all right first time it would be very cheap.

[turbojolt]

cheers mate

[8valve-craig]

Had another few hours today so cracked on with another roof bar. Again went well, wont bother posting up the progress pics as the proceedure was the same as the first. Just doing the bends now as i have had the tool a few weeks now and although the guy hasnt asked for it i would quite like to drop it back without him needing to.

Tempted to do a cross in the roof, But this one took 3hrs and was a bit of a pain. Still got it right first time though with no waste other than the slithers i had to trim out for the profiling.

[Benn]

Why the bend in the roof bar? (ive only seen them straight and normally a cross)

Is the bend cause it meets the rear hoop instead of the hoop to front cage join?

[8valve-craig]

Which cage's are you referring to? The Hockley and Custom Cages ones have either no roof bar or a single diagonal. Cant recall a single off the shelf cage which has twin diagonals in the roof, i may be wrong though if you have seen them.

Doing them straight would be silly, as at the lowest point they could be 3" from the roof skin. The most effective cages will be as close to the outer skin of the shell as possible.

[8valve-craig]

Had a few hours to kill earlier so did a little bit more on it.

Realised i didnt have a decent cutter for the bulkhead, so instead of driving accross town to get one i started work on the rear diagonals

First one in, which was pretty simple.



Upper of the second took some thinking, but with a little trial and error the first cut bar fitted in the end.

Getting some nice profiling too.







Getting there.

[Iain]

Nice work, I find profiling rollcage tube ends a very satisfying job (when it goes right!)

[Benn]

Which cage's are you referring to? The Hockley and Custom Cages ones have either no roof bar or a single diagonal. Cant recall a single off the shelf cage which has twin diagonals in the roof, i may be wrong though if you have seen them.

Doing them straight would be silly, as at the lowest point they could be 3" from the roof skin. The most effective cages will be as close to the outer skin of the shell as possible.

I've seen alot of cages for oval lap race cars, alot of them have a x in the roof.