We are going to make billet center caps for our drag wheels for the Lightning but I need to know how far the hub sticks out from the surface that the wheel bolts to as I don't have a sample. I think the Lightning has removable rotor hats so it would be the distance from the face of the hat to the end of the dust cap. Also, I need to know how far out the hub area stays at full diameter before it tapers down (if it does) to the dust cap area. The diameter of the hub at the hat is aprox 3.420 to clear the wheel but I need to know how far out I would need to hold that diameter on the inside of a cap before I can taper it down a bit for cosmetics.

TIA
JohnF
http://www.bogartracingwheels.com/

 

Go to the Sema web site at www.sema.org. Check out the information on the Ford technology exchange to get the specs you need for designing the wheels.