- Joined
- Nov 25, 2003
- Messages
- 16,370
You're completely missing the point. A particular pipe run on a particular engine when tested may be at a certain dB & gets approved with that particular combination. Now add in a modified motor, higher nitro & guess what? It's louder. And what dB level may be on one brand of a particular motor size will NOT be the same on another. Heck, two of the same motors won't be the same, how can you possibly certify all these possible combinations?? Plus this does ZERO for addressing another large part of total noise- THE BOAT!!! I'll give you all a very good example- take that same approved pipe, even a stock motor on low nitro, put it in a mono hull without a cowl, with no baffling or sound deadening in the nose & a solid motor mount & you will have a boat capable of ear splitting noise levels!!! You MUST consider the whole picture when it comes to noise output. And you guys wonder why an electric boat registered 86dB...........Don.. no mention of the term DB is used..
You must look at the ENTIRE package & that needs to be done by measuring sound levels.
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