Tech info wanted; Lean Burn Dist

KitCarlson said

If you want 6 crank degrees retard here are the measurements. Based on my NOS 6 reluctor, the outer tooth diameter is 1.310", that is a circumference of diameter times pi (1.310 * 3.1416) or about 4.12 inches. In crank degrees that is 720. So 4.12/720 is 0.0057 " per degree. For 6 degrees, 0.034". That is very close to the width of of a reluctor tooth tip. So to get your 6 degrees the second sensor should be set on another tooth, such that there is no gap, as the primary sees the exit of tooth, the secondary sensor is centered on tooth.

Click to expand...

So, Kit, first-off, thank you for all your time-consuming and tedious, hard work in figuring this out.

I will admit to understanding, REALLY understanding, about 30-percent of this, as it just flies over my head and in lost to the cosmos... but I THINK I "get it", that one of these pickups is going to have to be re-positioned to achieve a 6-degree difference in firing (timing.)

Tomorrow, or the next day, I am going to start the car, look at the timing, (with a timing light,) which should be dead-on 18 degrees BTDC, and then, disconnect that pickup and run the engine with the other pickup connected and look at the timing. I have a new timing tape that will show me, in no uncertain graphics, just how much difference there is in the two pickups. THAT is what I need to know. Wish me luck....

I'm hoping for 6-degrees, but, it might be much more. Or, less....

We'll see.:banghead:


Thanks, again!