Knock
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Knock
The setup: redtop SR, 555cc injectors, JWT C1 cams, GT2817r @ 15psi, Power FC, Z32 MAF.
Ok just put a Power FC in my car and it is giving me a knock readout of about 5-8 at idle and while I'm driving it's staying around 26. According to my wide band, my AFR is staying between about 11.5 to 13 so I know I am not running lean. What would be causing this? I have a hunch that it is the noise from the valve train (I've got solid lifters with hydro cams so it's a little loud) being picked up by the sensors, but I was wondering if there are any other causes.
Ok just put a Power FC in my car and it is giving me a knock readout of about 5-8 at idle and while I'm driving it's staying around 26. According to my wide band, my AFR is staying between about 11.5 to 13 so I know I am not running lean. What would be causing this? I have a hunch that it is the noise from the valve train (I've got solid lifters with hydro cams so it's a little loud) being picked up by the sensors, but I was wondering if there are any other causes.
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It's just ambient noise it will do that, 5-8 is nothing to worry about. 11.5-13 is pretty rich for idle, 14.7 Idle-Cruising 11.5 In Load. How consistent is the knock?
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Sold my sol for Silvia
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Cool thanks guys, I figured is was ambient noise but I don't want it blowing up on me before i get it tuned. And it's running so rich because I am just running a base tune I got from somebody to last until I can get it to my tuner.
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