WOT knock

[raceway96]

I have a 2020 Camaro with LT2 installed, I was tuning WOT and noticed a lot of knock and was wondering if this is false knock? I copied some of the low octane spark values to the high to be on the safe side but still seeing a lot of knock.

[TriPinTaZ]

You only mod is the LT2 intake manifold?

[easttxss]

I can't look at it because my software is too old (4.4.4) and I'm afraid to update and lose some of my features. But on my 2016 Camaro, it needs to be around 20* in the high RPM, full throttle section to maintain the 22*-24* recommended for 93 octane. If that's where you are and are still getting knock, maybe you really have some crap gas.

Another thought is maybe the intake is touching the HPFP and is transferring NVH to the knock sensors, if that's even possible.

[raceway96]

Yes just a LT2 manifold. I have a flex fuel sensor installed as well but I’m currently on 93

[TriPinTaZ]

You will get knock if you have too little timing in this motors too. I don't know why you're only running 10 degrees of timing but that is likely why you have KR in that log.

[raceway96]

I added more timing back in the WOT areas however after a few logs trying to hit my commanded EQ of .88 Lambda the car would cut off soon as I put it in drive. All I did was edit the airflow in WOT areas I know I can just start over and try again but I wanted to know what in my tune caused it to do that.

[kenand1988]

Flash back to a previous good tune and see if it still occurs, it looks like timing goes extreme negative right at the moment your rpms die. I assume thats because your engine tq shoots from 20 ft lbs to 215 ft lbs even though youre standing still but maybe thats just an artifact of the logging when a car stalls out or a delay in the PID but it seems to line up.

[raceway96]

Does this look like a decent tune? I was aiming for .88 lambda at WOT