New rules for 2013... Wheel base and rear stays. (Page 2 of 2)

If we have too change it we will. Looking at that white Spitfire.. I can see how backstays with a 30deg angle would work and land in front of the rear tires.

The thing is will need to redesign our fuel cell guard as well.

Still, would rather not have to change anything if we can get grandfathered in.

The window net keeps our heads in.. In that small car being close to the door head could go out the side in an accident.

Also with the combination of arm restraints it does actually help keep arms inside, not as well as a full net but still helps.

Keeps drivers from resting elbow on the door like so..

it's a vert...arm restraints are part of the rules.

I read somewhere that the intent was to prevent a rear end crash from pushing the cage forward or compromising the integrity of the cage. If this is the case leaving the old bars would not be ok.

Do you have enough room to mount the fuel cell on the 'tray' where the stock tank was located? Maybe make a 'shelf'' to help hold it, then use some .080 aluminum to make a rear bulkhead?

Your main hoop mounts are in the same place mine were, so that shouldn't be a problem when locating your backstays. It does look like the main hoop leans back a few degrees compared to mine, so you might want to straighten the hoop up first.

It looks like your bulkhead is in the same spot mine was which is basically the stock location. That should leave you ~10" above the shelf to hold part of the cell, then a framework could be built to support the part of the cell that hangs off into the trunk. The reason I bring this up is if you can put the cell on that 'shelf' above the diff then you have that much more 'crush space' between the tail and the cell. For that matter, you could run your backstays to the top of the rear inner fenders, then put a stock Spit tank back in, IIRC it holds ~10 gallons.

  Colin, e-mail me directly, we'll talk it over.

-John