Thread: Thinking of converting to E85.. Yes or Ne??

Originally Posted by BillBoost37

Good to hear Chris..

I wouldn't say little KR like that is false. There's something that set off the knock sensor. Maybe a weak coil on one tower or a wire arcing slightly through the coating etc. When was the last case learn? Something that just that little bit effects things. If you tossed more timing at it, likely you'd see more knock. Heck..it could be that the torque of the sensor was a smidge off. The torque of the sensor effects the sensitivity.

If you think it's false, turn down the sensitivity in the tune and run as much timing/boost as you'd like w/o seeing any knock. I don't think that would be good long term though.

Most of the blocks I pull knock sensors out of have a build up on top of the sensor. It's tough to tell how that effects the readings, because the only time they usually get pulled is when something broke etc.

Bill, I didn't know the torque of the knock sensor effects it's sensitivity. Do you know what the correct torque is supposed to be? I just put a tiny bit of rtv near the outer edge and tightened up mine. Not crazy tight but just "tight" by feel you know what I mean.... I too get a blip of KR in the 2nd to 3rd shift right around 100 mph. How do you set the sensitivity in the tune? Is it just a setting in the tune like timing or shift point etc? I saw the same 1 to 2* when I was running 93 gas and a 3.2 pulley. Seems just about everybody on here with a scan gauge see a degree or two of KR. Am I wrong?

Originally Posted by tms8582

Bill, I didn't know the torque of the knock sensor effects it's sensitivity. Do you know what the correct torque is supposed to be? I just put a tiny bit of rtv near the outer edge and tightened up mine. Not crazy tight but just "tight" by feel you know what I mean.... I too get a blip of KR in the 2nd to 3rd shift right around 100 mph. How do you set the sensitivity in the tune? Is it just a setting in the tune like timing or shift point etc? I saw the same 1 to 2* when I was running 93 gas and a 3.2 pulley. Seems just about everybody on here with a scan gauge see a degree or two of KR. Am I wrong?

Pretty sure the knock sensors are 14lbs torque. Too much or too little torque can throw off readings.


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