Event #1 Sound Issues

[gbwrx]

I do like the straight pipe idea better. If there isn't a problem with the noise from the turn down then I will do it. I would rather have something that I won't be changing.

And Steve, CSP is the sound I am looking for.

[TedV]

PES 93 = 75.9, 77.4, 78.9, 80.6
PES 193 = 80.5, 78.1, 81.5, 82.5

Pilson, I have a feeling we should be using the turn down. Too bad we can't do some testing before next event.

with those readings....sound will most likely not be an issue with you.

The perceived psychoacoustical loudness should double with every 10dB increase

that said; you would probably have to kit the tail pipe off and back up to the meter to get passed 96dB.... or drive a Corvair with no exhaust.

what he said

[Mike Burke]

Hello,


Having competed in ETR auto-x events since 2005, until this thread started, I wasn't aware ETR utilized sound regulations including the possibility of disqualification. Though unlikely that my STS Miata would exceed the maximum 96 dba limit, other competitors could. Hence, perhaps it would be helpful to include the Club's sound rules in the Registration portion of the web-site's Solo section. Such an action might avoid an "unpleasant surprise" for a future competitor(s).


Mike Burke

[JohnSmith]

Wow I was the second loudest in the group? Does anyone know what the sound ratings were for all 4 runs? I left it in first gear on the last run past the meter...

[EliseAutoXr]

Wow I was the second loudest in the group? Does anyone know what the sound ratings were for all 4 runs? I left it in first gear on the last run past the meter...

Here ya go:

95.6, 89.5, 90.7, 94.8

[Ruff Ryder 6]

Do you mind posting my sound scores? SM 6 i was in the first run group. Want to see if my open downpipe is a problem or not. Thanks

[EliseAutoXr]

Do you mind posting my sound scores? SM 6 i was in the first run group. Want to see if my open downpipe is a problem or not. Thanks

I'm sorry, we only have valid numbers for the 3rd run group.