Chacko

detonation at idle?
Have you tried richening fuel? leaning? changing timing at idle?

What are you using for fuel management? AFC? I swear to god I think mines detonating at idle but I nod it off as belts or those new fuel injectors. It doesn't sound quite the same as when I had my other motor detonating

MR_DR_PEP

I seriously think that at idle you're just hearing your valves tapping..

Dr.Boost

Yeah, I also noticed that the DSM injectors are way louder than the stock Honda ones. That could also be what your hearing.
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Chacko

oh yeah, you open the hood you can hear the injectors clicking I love it

Semnos

that marble sound isn't always detonation.
i have it all time in my car.
It's the vavle train springs are a bit soft...