GM knock sensor thread Options

[lagos]

is that an ATS TB inlet? looks nice. i ordered one last week!

Yup, I ordered that and the GM Knock Sensor Conversion for Doc to install. Along with the healthy dose of goodies that he's putting in the car.......should be really niiiiiiice.

i woudlnt recomend using the GM knock sensor. it dosnt work correctly for our cars and ats should stop selling it imho. keep the stock sensor.

[lagos]

And another thing . If GM sensors are narrow band sensors, then why can I loosen my valve lash and create knock that gets picked up by the sensor??? Why can I swap from a stamped steel rocker to a full self aligning roller rocker and get knock?? Why can I have a long tube header merge collector tapping on a crossmember and cauing the knock sensor to do it's thing?? Why do you have to completely disable the knock system when converting to a solid roller valvetrain? You can't possible say that the knock sensor will only pick up on a single frequency based on the bore of the block when so many outside the bore items will set it off.

your are such a domestic guy...lol the 3s dosnt have rockers or long tube headers.

[Fastbird]

And another thing . If GM sensors are narrow band sensors, then why can I loosen my valve lash and create knock that gets picked up by the sensor??? Why can I swap from a stamped steel rocker to a full self aligning roller rocker and get knock?? Why can I have a long tube header merge collector tapping on a crossmember and cauing the knock sensor to do it's thing?? Why do you have to completely disable the knock system when converting to a solid roller valvetrain? You can't possible say that the knock sensor will only pick up on a single frequency based on the bore of the block when so many outside the bore items will set it off.

your are such a domestic guy...lol the 3s dosnt have rockers or long tube headers.

Awww come on now, don't hate on me for being an import newb. You know what I was pointing out.

Ummmm.......I thought it was stated that the J&S and MSD both used the GM knock sensor.

Im not talking about just the sensor. Both companies sell a device which, unlike 3sgte ecu, was ment to work with GM sensor. I believe that J&S retards timing through the device, not through the ECU. Another thing is that GM sensor being able to pick up different frequencies (being wideband) can interpret signals that ECU does not understand, unlike these "knock monitor" devices.

Ok, now I follow ya.