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Ford B9B1 Knock Sensor Advance Rate Table (rpm vs sec/degree) - Taurus SHO

Calibration table titled Knock Sensor Advance Rate listing rpm against seconds per degree.

AI caption · Photo 93 of 117

This document is a small tabular screenshot (likely from tuning/calibration software) titled 'Knock Sensor Advance Rate.' It lists a lookup table with two columns: engine speed (rpm) and the corresponding advance rate expressed in seconds per degree (sec/degree). The table contains six breakpoints: at 8160 rpm and 8000 rpm the rate is 0.500 sec/degree; at 4800 rpm it is 2.000 sec/degree; at 3616 rpm it is 0.500 sec/degree; at 2816 rpm it is 1.000 sec/degree; and at 0 rpm it is 0.125 sec/degree. A reader can learn how quickly ignition timing advance is restored (per degree) at various engine speeds after knock-sensor-induced retard, according to this calibration table. The filename suggests it relates to the 'B9B1' calibration and pairs with a companion 'KS retard rate' scan in the same album. The document itself shows no year, make, model, engine, or part numbers, so applicability to a specific vehicle cannot be confirmed from the image alone.

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Frequently asked questions

What is the knock sensor advance rate at 4800 rpm?
According to the table, the advance rate at 4800 rpm is 2.000 sec/degree.
What advance rate does the table show at 8000 rpm?
0.500 sec/degree at 8000 rpm (and also 0.500 at 8160 rpm).
What is the advance rate at 0 rpm?
The table lists 0.125 sec/degree at 0 rpm.
What units does this table use?
Engine speed in rpm and advance rate in seconds per degree (sec/degree).
How many rpm breakpoints are in the table?
Six: 8160, 8000, 4800, 3616, 2816, and 0 rpm.

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