The technical requirements for the HPDE are just common sense checks to make sure your vehicle is in good, safe working order. It is important for you to check out your car before trying to get it inspected. You and the shop only want to do it once per event. Here I will go over the different categories of the technical form with some short explanations.
WHEELS & TIRES
The wheels should be round without any dents or damage to the mounting surface. The tires should be in good condition. The tread should be above the wear bars. No cords or belts should show. Flat tires repaired with plugs should not be used as these could fail under the high stress of track conditions. Hubcaps or beauty rings should be removed. They can come off causing a dangerous situation.
STEERING & SUSPENSION
Check the wheel bearings by grabbing the tire & trying to move the wheel from side to side. There should not be any play or clunking sounds. The front wheels should move when you turn the steering wheel. There should not be any excess play.
The engine should not have any leaks that will allow liquids to fall onto the track. These fluids will cause slippery conditions on the track. This includes radiator fluid (antifreeze) which is very slippery. The battery should be secured with two (2) bolts. The battery terminals should be covered to prevent any arcs in case of accidental contact.
The brake system should be in good working order with no leaks in the system. The brake lines should not have any cracks. The brake fluid should be clear & at the maximum level. The pads should have plenty of life left in them, as the high speeds on the track will wear them out faster than the street. The brake lights should function properly.
Seatbelts must be in good condition. Factory seatbelts are OK. Cars without fixed roofs are required to have roll bars. Natural fibers are recommended for clothing. Minimum allowable clothing is jeans, a T-shirt & closed toe shoes. You will be required to wear a helmet when on the track. The minimum rating is SNELL 1990 (SA1990 or M1990). Newer helmets with a SA rating are recommended. Eye protection is required (face shield, goggles, safety glasses). The more and better the safety equipment you have & use, the safer you will be.
There should be no exposed wires. The car should have a good gas cap that seals. The seats should be bolted in tightly.