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Knock sensor, any experience ?

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Old Sep 7, 2008 | 11:42 AM
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Default Knock sensor, any experience ?

Seems like a good idea for a new motor. Especially one that is a bit loud.

Anyone have any experience with these devices, good or bad ?

What brand ?
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Old Sep 7, 2008 | 01:17 PM
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As far as I know they are only used on computer controlled fuel injected motors. If the computer gets a knock signal, it retardes the ignition timing to avoid dammage.
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Old Sep 7, 2008 | 03:31 PM
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No there are aftermarket units. MSD makes one, you screw the sensor into one of the block drains, it is expensive though at $250
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Old Sep 7, 2008 | 03:51 PM
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My '81 came with one stock (computer controlled timing and carb). It allows you some margin of error when playing with compression/ timing/ etc. I like it. God bless, Sensei
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Old Sep 7, 2008 | 03:58 PM
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It's a good idea and normally all sensors can be 'tuned' to their specific engine and noise level. You basically make it less sensitive. I used to have electric diagrams for doing just that, but I couldn't find them right away. Don't know if it'll work for the aftermarket thingy.
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Old Sep 7, 2008 | 04:17 PM
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They can work.....just have to desensitize them for forged pistons and solid cam noise.

JIM
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