Thread: knock sensor
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John at J&S John at J&S is offline
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Join Date: Dec 2005
Location: GARDEN GROVE, CA
Posts: 147
Goran: Saab introduced the APC in 1980. Boost reduction by knock detection, using acoustic knock sensor.

It was an analog system. It worked well, but if we follow your logic, it was junk, and they should have just waited until '94 when they had ion sensing.

You can sit around and wait for the DIY group to give you ion sensing, meanwhile you tune by ear or experience, the navigational equivalent of dead reckoning.

Without individual cylinder knock control you are in second place, if that. You either leave power on the table or did not finish.

You generalize and say knock sensors don't work very well. Obviously, you haven't tried my system.
Old 10-31-2009, 10:48 PM
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