Tuned But still seeing feedback knock

[Seasian2]

Hey guys, I had recently gotten tuned in the last 3 weeks through a reputable shop, they noticed some knock with the gas I had, Costco gas, so got a conservative tune.
I enjoy just cruising around but do have my occasional spirited pulls, not too many, but enough to make me smile. I tried changing location for where I got my gas, and noticing feedback knock more.
It runs about -0.7 - -2.8 time to time when I get on it. Even cruising down the highway I notice sometimes -1.75 on the Feedback Knock Learn, I hear its not too much to worry about but just got the motor built and don't have to have problems again haha.
Its tuned on pump 93 octane.

 

[Grinder34]

What's your tuner say. Since its barely out of the shop, and you ruled out gas, I'd definitely give him a call.

Engine tuning isn't my forte, but a few others on here should be able to chime in.

 

[Alin]

From what I understand, as long as knock isn't occurring during heavy acceleration or WOT, it's not "interesting knock." Many variables can contribute to false knock and I also experienced it during civilized/granny driving. However, you should definitely talk to your tuner for his advice and knowledge. Report back with what he says!

 

[yamahaSHO]

If by "built" engine, how loose are the PTW clearances? Forged motors are pretty noisy... It may just be a case of needing the knock sensor threshold raised. You can this out by running the tank low, then filling with a few gallons of race fuel. If the "knock" doesn't go away, it's likely noise that needs to be filtered out.

 

[Grinder34]

If by "built" engine, how loose are the PTW clearances? Forged motors are pretty noisy... It may just be a case of needing the knock sensor threshold raised. You can this out by running the tank low, then filling with a few gallons of race fuel. If the "knock" doesn't go away, it's likely noise that needs to be filtered out.

Great tip, thanks!