Rollbar Specification Change for Wakefield and Nationals

Plums · #1 (**permalink**) 06-05-2007, 10:26 PM

Quote:

Originally Posted by 400TT

Nationals 2007 regs are out.

* Roll bars are compulsory for open top cars. Minimum single hoop behind drivers head.

* Any vehicle that runs faster than 1 min 11.99 seconds will be required to have a Roll Bar behind the drivers head that is constructed of steel tube with a minimum 50 mm OD and a wall thickness of 2mm or 44.45 mm OD with 2.5 mm wall thickness. It must be at least 50mm above the drivers helmet and will be fixed to the chassis in at least three separate positions.

* Any car running faster than 1min13.99 seconds will be required to have a Full Harness Seat Belt.

* Fire Extinguisher must be less than three years old or should carry a current inspection tag.

* Accelerator linkages will have a minimum of TWO return springs.

Personally, I believe that these regulations seem quite fair for circuit racing.

Geez I wish these were the regulations for Drag Racing...

Aussie Mike · #2 (**permalink**) 06-05-2007, 11:13 PM

I think these rules are more than fair. I would rather see them enforced now than after someone is seriously injured in a rollover.

And as spooky says there's plenty of fast down the straight slow in the corners cars that don't get under the 1:11.99 lap time. Are they any safer?

I'm probably going to annoy a few people but I Ithink the roll bar rules should be across the board.

Kit manufacturers should be taking the rollbar fitment and design far more seriously than they do. When building mine I made several modds to the chassis to beef up roll over protection. The seatbelt bracket in the boot that one leg attatches too got a shear plate welded across it to strengthen the whole thing. There was no provision on the chassis to mount the third leg so I welded a mount onto the chassis under the boot floor.

A cosmetic rollbar is about as much use as a chocolate fire guard. Realistically how much extra effort would it have been to make it a proper structural bar?

Cheers

400TT · #3 (**permalink**) 06-06-2007, 12:04 AM

I think one of the main issues is the amount of notice. 12 months notice would have been nice. The other issue is scrutineering. I expect some members would be nervous about getting down there and not passing.

I was wondering if it would be possible to get vehicles scrutineered up here before we leave. Surely the committee can find a suitable body up here to scrutineer vehicles. Might be the next logical step.

Quote:

Originally Posted by Aussie Mike

Kit manufacturers should be taking the rollbar fitment and design far more seriously than they do.

Mike, some manufacturers take roll over protection seriously.