Camshaft timing when the sprockets are ONE tooth off from straight up.
With a double roller, a tooth is about 14 degrees.
If the crank sprocket is 25 tooth, 360 divided by 25 works out to 14.4 degrees per tooth.
If a cam sprocket has double the teeth of the crank, then the cam sprocket has 50 teeth. That would make each cam tooth 7.2 degrees.
Part of the curiosity is if all aftermarket timing sets have the same amount of teeth on the sprockets. I've never thought to count them. I have a few engines here and a few low mile timing sets I've saved. I just haven't thought to look and count them.
I found a notebook where I wrote about the work that I was doing with the car.
In there, I wrote that the cam sprocket was 3 teeth off
advanced. That technically is 1 1/2 teeth at the crank, right?
The Engine Masters TV episode where they ran the 440 on a dyno showed a power loss with the cam advanced 10 degrees. Being advanced the 3 cam sprocket teeth is what then...almost 22 degrees? The only reason the valves never hit pistons in this low compression 318 was because the pistons probably sat .80 in the hole and because 318 cams had a paltry .373 of lift.
The timing set was not stock, so someone either made a mistake or stupidly thought that advancing the cam timing this much made sense??