Can I Detect Engine Knock On A Dyno Graph?
Summary
Is there any way to detect knock on the dyno graph? OK this is another really big area of confusion in the industry. We find that a lot of tuners believe that we don't need knock detection and we can simply use the dyno to help us tune because when the engine suffers from knock, we're going to see the torque drop away.
00:00 | - Angel's also asked, is there any way to detect knock on the dyno graph? OK this is another really big area of confusion in the industry. |
00:09 | We find that a lot of tuners believe that we don't need knock detection and we can simply use the dyno to help us tune because when the engine suffers from knock, we're going to see the torque drop away. |
00:20 | Now there is some truth in this. |
00:23 | When the engine is knocking we will see the torque output drop. |
00:26 | But the problem we see is that 99% of times in my experience, we're gonna find that an engine will start knocking on maybe one or two cylinders initially. |
00:36 | So what we can find in this situation is we'll have one or two cylinders beginning to suffer from light detonation, but the overall torque of the engine improves or increases as we advance the timing. |
00:46 | So this is why I don't rely on the dyno to help me define whether or not my engine is knocking, I always rely on audio knock detection. |
00:54 | I'm physically listening to the engine so I know that it is knocking, or if it is knocking. |
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