I'm looking to do some track days and they are saying the factory roll bar is not sufficient. Looking through the selection here I have a few questions.
The link below are the regulations I have to follow. I don't need a full cage, a rollbar will do so Appendix II is applicable.http://www.caccautosport.org/wp-content ... ndices.pdf
I have some questions on the construction of the bars sold at Goodwin and the experience of folks here who've tracked their cars.
For fabrication the rules specify:
It says DOM tubing will likely be the requirement in the future. I didn't see anything about what kind of tubing is used.
A 0.476 cm (.1875") diameter inspection hole drilled in each main hoop. Do they come with an inspection hole pre-drilled or should the installer do this?
Diameter and thickness are specified as:
Under 2500 lbs 4.45 cm X 0.30 cm (1.75" X .120")
Over 2500 lbs 5.72 cm X 0.30 cm (2.250" X .120")
Wikipedia says the car goes from 2447-2542. That kinda spans the over/under above and my car is the Grand Touring. I've lost some weight with header/mid-pipe/exhaust but also added some weight with aftermarket sound system and sound deadening (mostly to stop the vibration of the door pannels). The thickest bars I see here are 2". Seems really odd as I can't seem to find a rollbar that fits the 2 1/4" requirement anywhere. I'm thinking 2" should be sufficient, but I'd like to know the thoughts or experience anyone else has had with track day tech inspection scruteneers.
It can be no further than 10" behind and must be 2" above the driver's helmet. I know this depends greatly on the driver but assuming a 5'10" driver with the factory seat almost all the way back and all the way down anyone have trouble passing the "broomstick test"? Given a lot of the AWR are 2+" taller I'm thinking I would fit under it. Any thoughts or experience from folks of similar size?
From a finishing perspective I'd like it to fit under the softtop/removable hardtop. Also is it possible to get them powder coated/painted other colours? If so how much and can it match the paint codes of my car?
Am I over thinking this? Its a fairly substantial investment and I'd hate to waste a grand only to find I need something different.