Twinspark Racecar Rebuild

Giulia Super Engine Rebuild

I built a couple of fixtures to hold down the gears while they were being drilled. Although one can certainly do all of the machining on manual machines, I chose to use a CNC mill for the drilling. This allowed me to optimize the drilling parameters and to save the expensive carbide drills for a later project (though they still took a beating). I back-cut the gears in a little bench lathe using carbide tools and inserted-style cermet tools before drilling the gears out.