by ThomasChichak » Tue Mar 09, 2010 1:22 am
Yep the kirkey padding from mopac will do the job. Its not actually FIA approved, its SFI 45.1 but that is accepted by CARS too.
FIA is thicker, slightly square in profile, harder foam still then the SFI, each piece is stamped with a homologation number, and you pay more for it. It has to adhere to much more strict testing, exceeding SFI 45.1 to be approved. SFI is sufficient for 95% of the possible impacts, probably more then that at the speeds attainable in grassroots oriented rallying.
I'm personally not a fan of the pool noodle stuff at all. Its not melt/fire resistant in the slightest, and is far too soft to offer much protection in a moderate to high speed incident. SFI or FIA padding, though not as comfortable in a day to day scenario, is much safer when the forces are increased in the event of an "event." Pool-noodle type padding in a high-traffic area, such as the top of a door bar, will flatten and tear quite quickly aswell.
Where to put it? Roll cage padding is generally used to protect the hard-fragile-vital-organ-containing bits of you, not the squishy-fleshy extremities. For sure put it anywhere your helmet can possibly come in contact with the cage. Keep in mind, you are a lot more flexable then you think in under the high G-forces of a crash. Seat belts, even though you can hardly breathe they are so tight, will stretch, so your head could travel a lot further then you might think. You would have to stop very abruptly in a lateral direction to cause more then a bad bruise to a limb. But if it offers you peace of mind, or comfort, there is no reason you cannot add as much padding as you like. If you were to look inside a WRC car, you would see no padding at all except for where a helmet can contact the cage. But its all about making you feel safe, do what you need.