Just curious if any of you have ever had this problem. I am 6' 5" tall and my head is damn close to the roof of the car. They say my head has to be 3" below the top of the roll bar. Well its not 3" below the top of the roof with a helmet on. Any advice? Also, he asked if I had long wheel studs on the front wheels. WTF?

 

By the rulebook:

General regulations 4:10

All roll bars must be within 6" of the rear or side of drivers head, extend in height at least 3 above the driver's helmet with driver in normal driving position.

That does present a problem for all tall drivers especially in dragsters. Although I've never measured how much clearance I have, I know it's not 3" in my car.

One option is to lower the seat or slide it forward and sit in a more reclined position.

As for the wheel studs, if that's all he asked then next time ask him what rule he's refering to. There's no rule saying you need to have long wheel studs anywhere. The rule is:

Wheel stud must protrude into the hex portion of the nut equal to the diameter of the stud.

What that means is if you have 7/16" front wheel studs, they should extend into the nut (not including washers) at least 7/16". That would be above the surface of the outside of the wheel. If you take a nut off, the stud should stick past the wheel that far. If your nuts use washers then place a washer over the stud and measure from there.

Many time people will use thick hub rims such as Weld DragLites and still use factory wheel studs. Just because the shank of the nut grabs threads of the shorter studs doesn't mean it's safe. I use 3" studs on the rear and 2 1/2" on the front.