Normal Timing Advance At Idle, Not real bad, but enough that I can notice it.

Normal Timing Advance At Idle, when the engine is spinning faster, you need more degrees of advance to get the same time. no pinging because as soon as you increase the load by stepping on the pedal, the vac goes down and the vac advance goes away. To understand the foundation of engine specs, explore our Engine Displacement Calculator to see how cylinder volume interacts with your timing needs. Jul 24, 2024 · I have had a vacuum gauge on my car and get 16" at light throttle cruise. Oct 22, 2025 · Normal ignition timing at idle typically falls within the range of 15 to 30 degrees before top dead center (BTDC) for most engines. 28 g/cyl (remember…do all the timing tables: Idles and Mains!), save and reflash the new changes to the PCM. It can not be tuned out. Getting to your question: Spark advance is the time when the plugs are triggered to spark, in degrees. Be cautious —too much spark advance can cause idle hunting Experiment with a wide range of spark advance values at idle Some engine combinations will require values below 0° for optimal results Idle RPM Timing Correction fine-tunes your idle by adding or subtracting timing as RPM deviates from the Closed Loop Idle target Feb 10, 2013 · What's a normal range for timing advance on an 8th gen? Mine seems to range from 6. the spark has to lead a bit to get the flame front going so that peak pressure happens at the right time relative to piston travel. ymqq, gfv, ytyko, 2d, nbs, mcidr, a1rw, nny1, dpb, ip,