Is spark knock something that is there or isn't or can it be very slight? The reason I ask is that I want to know how much I can push my motor without braking anything of course. Right now I have a very safe tune but wanted to advance the timing allitle. Will I definatly know is I have spark knock or can it be suttle. If it is very suttle wha tkind of damage can it due? I also ask because when I was playing with the timing the other day I thought maybe I heard a slight knock but it sounded more like a miss. Also a slight motor while in netural if i would rev the motor. I hope this makes sence sorry so long.
spark knock question
- Thread starter 331 stang91
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Funanin
Founding Member
detonation as far as i have seen is only there or not there. What you can do is have a buddy rev your motor up to about 4 or 5k and hold it there for a few seconds while u have your head under the hood and listen for any sort of pinging. If it is there you will hear it. Also it usually doesnt do it in neutral, you have to rev it up to hear it. You really should be using a timing light and setting it to around 14* max with 93 octane gas. Any higher and I would think it would start to ping.
you need a load on the motor to hear detonation. I would not even bother being near detonation - a dyno pull should show you that you can go past the crest of the most beneficial timing and start to lose power (before detonation even onsets).
that is just me though. good luck.
that is just me though. good luck.
Funanin
Founding Member
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