jwkim

In F.I. set up(I'm currently running stock Vortech set up), how can you tell if you have knocking?
Power delivery on my car is very smooth and I do NOT hear or feel any knock or any abruptness.
But I remember you wont hear or feel most "knocking".
Is there anyway I can find?

toekneepark

hear? i think you do hear knocking.

best thing that descibes it... sounds like a bunch of rocks being shaken around in a bucket...

Slows2k

Unless is detonating REALLY bad, You'll be hard pressed to hear it over 6K rpm, especially with a loud exhaust.

I've heard several FI'd Hondas detonate right before The VTEC switchover, when the low lift cams are at the edge of efficiency.

It's a light tapping that will go away when you close the throttle.

revhi

Ive never heard mine do it, but I have felt hesitaion when cold. At the dyno, the tech says he could hear it with the hood popped while I was doing runs. Couldnt hear it from in the car, to many other noises.

Promeds

won't a compression test tell you earlier if the car will have problems?

Slows2k

It will tell you after the fact that the compression pressure is low, but that's about it.

thumpeyr

I had an issue at the track when I was having boost creep issues, needless to say I overboosted to 21psi and didnt hear a knock at all. Thank god my EMS detected it with the knock sensor and retarded timing down to 3 degrees in the 1/2 second it took for me to get off the throttle.

Best way to know if you have knock is to be able to read your knock sensor.