Got a Questions about maybe False Knock?

[MMC Racing]

Hey guys!

Im not new to HP, just to Nitrous Tuning..

HOWEVER, this is not a nitrous related question...

I hooked up the VCM scanner to my 2000 Camaro, and I was seeing A TON of knock at just blipping the throttle..

It was showing inbetween 4-9.5* of KR.. I took the car to WOT and NO KR. I preceded to Shot the DRY 100 shot of nitrous and got NO KR....

I turned the Timing down to 7.5 ABSOLUTE (I know its low and not correct) and then turned the AFR 11.7 and STILL GOT 4-6* of knock on NO nitrous, just at the little thorttle blips...

Is it possible Im experience False Knock?? I cant decided whether to step it up to the 150, but I dont even want to shoot the 100 right now until I get this figured out.......

Under 100 Shot at the change between 1-2 gear (A4) I got like 3*.. So i let out really quick...

ALSO I descreened the MAF for the DRY shot.... Could it be possible its that?

If it is the MAF what should i do.....

[MMC Racing]

Any responses woul dbe appreciated!

[Bill@HPTuners]

yes it very well could be false knock.

[MMC Racing]

I was thinking I would hear 10* KR

[devildog9999]

False KR is actually very plauseable. The harmonics of the KR sensors are good, but not perfect.

[EC_Tune]

If you have forged pistons (I hope you do with N2O ) and they are a little "loose" in the bore you could be picking up a bit of piston slap. If so, just turn the Knock Total Gain values up a bit at idle RPM & MAP and just above there.