![]() in the NB cars is monitored via a network of sensors and is controlled by a computer module. I may be wrong, but I am willing to bet that like my 99' Expedition, all of the inner workings of the engine - timing, spark, fuel injection, etc. What do you do with a 2002 that does not have any high tension wires to wrap the inductive pickup around? Our sparks fire twice as often as most 4-strokes. If you use a timing light with a pre-set timing feature like the one you are looking at, unless it also has a two stroke setting, it will give you the wrong timing because of the miata's "waste-spark" ignition system. They make a base-model thats just a timing light, but mine has a meter on the back that can be set to read volts, RPM, or dwell-angle (doesnt apply to our cars). I do not abuse it, but it often rattles around in my tool-kit or trunk. Its made of plastic and doesnt look especially robust, but its given me 10 years of service so far, and not showing any signs of getting worse. I'd like to hear what kind of inductive light you guys use on your NA, and which one you wish you'd purchased instead. ![]() After this test I will not worry about the digital light giving me false readings.I saw a timing light at auto zone that had a dial on the back of the gun for "accurate measuring and advancing". I wanted to verify that my timing settings were what I thought they were. I had only used the digital light on this motor. After reading this thread I was worried that the newer digital light might be giving me some false readings. The only reason I conducted this test was to prove to that my timing settings were correct. The MSD box did not give any problems with either light used. I did the tests back to back several times and had no differences between either light. I got exactly the same readings with this light. It has no dial back capabilities just a straight up timing light. Second timing light old sears analog inductive light that I bought back in 1982. I could use the dial back to set the pointer at 0* and rev the motor to any rpm with steady readings. The timing was spot on at 18* with a total of 36* all in at 2800 rpm. All timing readings were done with the vaccum advance unhooked and plugged.įirst timing light is an Equus Innova 3568 digital timing light with tach and digital dial back capabilities. I have the springs set up so timing is all in by 2800 rpm. I have the vacuum advance hooked up to ported vacuum. I have my initial timing set at 18* with the 18* mechanical advance bushing installed for a total of 36*. I have a B&B timing pointer that was indexed at TDC when the motor was built. The ignition system is an MSD 6AL box with an MSD Pro Billet 8361 distributor. ![]() So today I decided to conduct an experiment with the two timing lights that I have.įirst off I have a 70 chevelle with a 383 motor. I have been following this thread with some interest.
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