What exactly does pinging sound like?
#1
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What exactly does pinging sound like?
I've been told it's like dried peas or small rocks rattling in a tin can, but how loud is it? Does it (the rattling) get faster with increasing RPMs?
I hope I haven't been hearing it and ignoring it, just because it doesn't sound like my idea of rattling peas.
I hope I haven't been hearing it and ignoring it, just because it doesn't sound like my idea of rattling peas.
#10
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I'm trying to decide if I'm pinging or not. It only happens under full throttle, full boost, and probably above 5500rpm. It almost sounds like the cowl shake I get over bumps, but much faster. It's not very loud, however. About the same volume as cowl shake.
I always run 92 or 93 octane, base timing at 14 degrees, but I also have the Bipes, so it's at, I think, 6 degrees under full load.
From what I'm hearing, it sounds like it may be pinging, but it doesn't seem loud enough and it doesn't strike me as metallic. Seems more like plastic vibrating.
Maybe my 18 year old ears are just too sensitive, I'll gladly take that as an answer.
I always run 92 or 93 octane, base timing at 14 degrees, but I also have the Bipes, so it's at, I think, 6 degrees under full load.
From what I'm hearing, it sounds like it may be pinging, but it doesn't seem loud enough and it doesn't strike me as metallic. Seems more like plastic vibrating.
Maybe my 18 year old ears are just too sensitive, I'll gladly take that as an answer.
#11
I'm trying to decide if I'm pinging or not. It only happens under full throttle, full boost, and probably above 5500rpm. It almost sounds like the cowl shake I get over bumps, but much faster. It's not very loud, however. About the same volume as cowl shake.
I always run 92 or 93 octane, base timing at 14 degrees, but I also have the Bipes, so it's at, I think, 6 degrees under full load.
From what I'm hearing, it sounds like it may be pinging, but it doesn't seem loud enough and it doesn't strike me as metallic. Seems more like plastic vibrating.
Maybe my 18 year old ears are just too sensitive, I'll gladly take that as an answer.
I always run 92 or 93 octane, base timing at 14 degrees, but I also have the Bipes, so it's at, I think, 6 degrees under full load.
From what I'm hearing, it sounds like it may be pinging, but it doesn't seem loud enough and it doesn't strike me as metallic. Seems more like plastic vibrating.
Maybe my 18 year old ears are just too sensitive, I'll gladly take that as an answer.
Mark
#14
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Best way to check the plugs is to shut the car down as soon as you hear it. Then the color of the plugs will show you what was happening right then, and it doesn't give them a chance to color-over. Get on an empty strech of road, rev it up, if you hear the noise, cut the engine, coast to a safe spot to pull a plug, examine the color.
#17
when my ex-tuner f'd my civic up he was running 26 advance on it and i still heard no noise... lasted about 4 hours of driving on boost untill enough material was blasted off of my head and pistons to finally start making little compressed chunks of aluminum and that eventually stuck in a few of my valves and caused my engine to die from not allowing the valves to close. i heard nothing and i had a baaaaad case of predet. to say the least he is deffinetly making it up to me. appearently timing maps from the honda sohc motors are not swapable to other honda sohc's :gay:
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