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Lots of Knock WTF?

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EclipseOwner95

20+ Year Contributor
704
10
Oct 16, 2002
Jacksonville, Florida
This is a 3rd Gear pull, at only like 15psi, mods that matter are 2g mas , 510cc injectors, walbro 255hp , s-afc, and cooler plugs, i dont understand why im getting so much knock, even when i did a few runs at 10psi i got afew counts of knock...whats up ?? on my s-afc i have it richened almost +10% all across the board, some less , some more, any help would be appreciated

Edit - i realize my o2's are weird, before it wasnt even working because i havnt replaced the o2 sensor yet and the wires got melted, before it had no reading at all, but i wired it back up and thats what it gave me, i dont know if its worth beliveing or not...

RPM Knock Timing o2 Karman Air Temp

4469.0 3.0 25.0 0.63 819.0 104.0
4219.0 10.0 20.0 0.61 996.0 103.0
4375.0 14.0 17.0 0.61 1097.0 103.0
4469.0 14.0 15.0 0.61 1185.0 103.0
4531.0 13.0 14.0 0.59 1279.0 103.0
4750.0 13.0 13.0 0.59 1311.0 102.0
4781.0 13.0 14.0 0.59 1323.0 102.0
4781.0 12.0 15.0 0.59 1368.0 102.0
4969.0 19.0 13.0 0.59 1361.0 102.0
5063.0 22.0 12.0 0.59 1355.0 102.0
5219.0 21.0 14.0 0.59 1368.0 102.0
5250.0 21.0 15.0 0.63 1405.0 102.0
5219.0 21.0 15.0 0.63 1386.0 101.0
5406.0 20.0 16.0 0.63 1405.0 101.0
5500.0 28.0 14.0 0.63 1418.0 101.0
5594.0 28.0 15.0 0.63 1449.0 101.0
5719.0 27.0 15.0 0.63 1481.0 100.0
5750.0 27.0 15.0 0.65 1531.0 100.0
5750.0 27.0 16.0 0.65 1531.0 100.0
5906.0 26.0 17.0 0.65 1544.0 100.0
6063.0 31.0 16.0 0.65 1575.0 99.0
6063.0 37.0 15.0 0.65 1582.0 99.0
6031.0 37.0 13.0 0.65 1582.0 99.0
6156.0 36.0 14.0 0.65 1594.0 99.0
6188.0 36.0 13.0 0.65 1607.0 98.0
6219.0 36.0 13.0 0.65 1607.0 98.0
6281.0 35.0 12.0 0.65 1607.0 98.0
6375.0 35.0 14.0 0.63 1607.0 98.0
6406.0 35.0 11.0 0.63 1607.0 98.0
6469.0 35.0 10.0 0.63 1607.0 98.0
6594.0 34.0 10.0 0.63 1607.0 98.0
6594.0 35.0 9.0 0.63 1607.0 98.0
 
I am no expert on tuning, actually, I have been doing some detailed research and learning how to tune myself.
First, do you have the blue wire mod hooked up? If so, I would recommend disconnecting that. According to your log you definitely need to bring that value up.
What do your fuel trims look like? They should be +/-10% from 100%. This can also tell if your O2 is cycling correctly.
 
If we assume the O2 readings are correct, that would explain the knock. Have you tried richening it more? I would suggest adding 5% more across the board and see what happens.
 
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