I wanna build a a tube frame special to use in khanacrosses and motorkhanas. However, the thought of strapping on some road tyres and having a crack at a hillclimb (or a clubsprint) is very appealing.

How do the classes work? Are there specific regs for specials?

I had a look in a cams manual and couldn't find any detailed specs. Is there a website or something?

From my limited understanding, unless you fit in formula V etc, any tube frame will be classed as a formula libre?

Correct bix! hows the new engine going? Formula libra....hummmmmm four wheels and the race starts at 2! A motorkana special with upgraded roll cage specs is a legal libra! Any tube frame that is not part of any oter formula class can run as a libra at hillclimbs, as long as the saftey aspects of the cams manual are met.

I know that buggies (eg off road style) runn formula libre. what about getting an old forumla V droppping in a better engine?


Engine is going well dave, have to give you a call and catch up. Everything is here except the block, heads and crank. so just waiting on that. then the next citical point will the machning. hoping it will be ready by end of nov, for run in over xmas bfore the carb upgrade. Just speced the cam up a little bit to to a w120 with 1.25:1 ratio rockers.

Pete unless you are doing a state round, we have types 1 to 5 and SV.
Type 1 is a factory car.
Type 2 very limited mods, such as computer chip.
Type 3 (3J) gets a little leniant. Any engine that is same location, configuration, and manufacturer as factory. regs
Type 4 (sports sedan) perspex windows, flared guards, spoilers, any engine. So long as basic shape of car remains as factory.
Type SV limited compliance and 4WD cars.
Type 5 anything that doesnt fit into above.

formula libra, Historic Nc, marque sports etc... all them other ones dont relate to multiclub events.
So it doesnt matter what you have, so long as it has steering, brakes, harness, fire extinguisher and battery triangle you should be able to run it in any club speed event.

Edit: this is NSW information, other states may be different.



[ Edited on 15-10-2006 by amazeer ]

Ta Chris, that's what I want to know.

Bix, vees are great for smooth tarmac, but they have very limited travel in the suspension department. I was looking at building a tube chassis single seater. As it turns out, a few mates from the club have already started one, I might buy that instead. Probably get a basic 1641 or a 1916 with a turbo/blower, IRS rear and BJ front, so it should be quite good. Still need to hammer it out with the missus though.