Recent content by Prof. Chaos

Maybe I'm over thinking this. 9.1.4.L.1 says: The battery may be replaced with any equivalent battery of the same type. Battery may be relocated, but must be secured by a tie-down bracket and positive terminal must be covered to prevent accidental sparking. What is an "equivalent battery of...

Are headlights required in STx? Under "Engine Electrical" (9.1.4.L.3) it says: All cars, except cars with pop-up headlights, shall have clear OEM headlight assemblies in place in the stock headlight positions. If headlight assemblies are used, they may be the clear OEM assemblies for any...

I’ve been looking through the October edition of the GCR and the August Fastrack but I can’t seem to find a line anywhere that talks about mirrors. I’m wondering if I have to put the side mirrors back on my IT car to run STU and/or STL. Since there didn’t seem to be a line about removing...

With the allowance of ECUs in the GCR, I was wondering if something like the Electromotive Tec-GT is legal for an 1.8L Miata in ITA. The GCR says you can only use a crankfire ignition system if the car was fitted with one from the factory. The Electromotive system uses its own crank sensor you...

I have the diff out on my ITA Miata, and I was trying to find if the two diff bushings that hold the assembly to the car are legal to replace with poly units. It seems that all suspension bushings are open, but I wouldn't count the diff as part of the suspension. 9.1.3.5.d.6 Bushing material...