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tabio42
10-03-2005, 05:45 PM
I just bought a digital sound level tester from radio shack. It goes all the way up to 126 decibels. I'm designating this a community use item :laugh:

So if anybody wants to use it to unofficially test their exhaust system for compliance with the sound level laws shoot me a PM. I'm in Aliso Viejo so if anybody wants to meet up to use the meter I'm game.
Macky
10-03-2005, 05:46 PM
bump for a generous offer O0
E V O L W O N
10-03-2005, 05:54 PM
thats awesome man, thanks.
Skiracer
10-03-2005, 06:16 PM
i got the same meter, but i use it to tune my home theater system:P
Just make sure you use the same meter placement as the referees do for accuracy.

EDIT. Actually i have the analog one. I think you should return it and get the analog one instead...
rino
10-03-2005, 06:28 PM
Bring it so I can test my car when you come get the cat :)
Skiracer
10-03-2005, 06:38 PM
You might wanna set up the meter like the norcalevo guys do. Its similar to how the ref's test:
http://www.norcalevo.net/forums/modules.php?set_albumName=album57&op=modload&name=gallery&file=index&include=view_album.php

Recording procedure: car parked in parking lot area free of nearby obstructions and buildings. Camcorder and microphone were placed 45 degrees off-center, about 2' from the exhaust tip and 1' off the ground. Engine was revved to 1500 rpm, then back to idle, then 3000, 5000, and 7000 rpm. Recordings end with approximately 10 seconds of idle.

Sound measurements were made using a hand-held Radio Shack analog sound meter (set on fast response, A weighting, with a stated accuracy of +/- 2 dB) offset at a 45 degree angle from the exhaust tip, 20" away, 10" off the ground. (N.B.: measurements were made at 5300 rpm (three-quarters of redline) instead of the correct 4875 rpm (three-quarters of manufacturer's stated maximum HP RPM) due to misinterpretation of testing specifications.)


**Note, the ref tested my car at 4875RPM
tabio42
10-03-2005, 06:56 PM
Rino, I think my buddy at Injen still has my stock cat but either way you're free to use it. I can bring it to a meet or something.

Simon, the guy at radio shack told me the accuracy was the same on both units. Do you know the analog one is better for sure? Radio shack employees are kinda clueless...
Skiracer
10-03-2005, 06:59 PM
I'm sure the accuracy is similar, but its easier to read an analog gauge. I.E. have u ever tried to read a digital boost gauge vs an analog gauge?
tabio42
10-03-2005, 07:50 PM
Yeah I know what you mean but I don't feel like getting the box out of the community dumpster... ;)
xEviLxVIIIx
10-04-2005, 09:24 AM
the last time i was at my old ref station a few months ago, if i remeber correctly, every car has a certain rpm its tested at. so idle and all other rpm ranges dont matter. and nocalevo is correct about the placement, but cant remember the exact distances.
WavMixer
10-09-2005, 05:31 AM
I too have a Db meter. We just measured CJexJiggy's car last night. Same offer here, if anyone needs to check their car's sound level, I can help you out. I'm just a pm away.
silvery_eagle
08-06-2006, 09:46 PM
so the refree tests our car at 4875RPM?
and the exhaust has to be 95db or below correct?
wj4
08-06-2006, 09:56 PM
any of you generous fellas around the 818 area?:)
tabio42
08-07-2006, 03:08 PM
I live in Aliso Viejo. Is that in the 818 area?
IXMREVO
08-07-2006, 03:17 PM
How much was the db meter?
WavMixer
08-07-2006, 04:39 PM
any of you generous fellas around the 818 area?:)
Everyday! Let me know and I can bring it into work, meet you at lunch and Git-R-done!
tabio42
08-08-2006, 10:39 AM
How much was the db meter?


I think it's like $30 from Radio Shack.

Radio Shack - you've got questions.... hold on, we're on the phone.
Evolution.VIII
08-29-2006, 10:26 AM
Sweet you guys are my heroes!

I work in Santa Ana off Barranca. I know Aliso is a little bit away, its close to the Spectrum right?
EVOMANIAC
08-29-2006, 11:19 AM
I have one in San Diego.
tabio42
08-29-2006, 12:24 PM
Sweet you guys are my heroes!

I work in Santa Ana off Barranca. I know Aliso is a little bit away, its close to the Spectrum right?


It is between Spectrum and Laguna Beach. But I am at school at Orange Coast College mon-thu and I keep it in my car with me if that's closer.
Evolution.VIII
08-30-2006, 11:15 AM
Not sure where that is, whats the closest place for you off the 5 or the 55? If you don't know where Barranca is, Dyer Rd East turns into ti.
tabio42
08-30-2006, 07:25 PM
OCC is 55 to 405N exit fairview in like 1 mile.
wj4
09-04-2006, 02:36 PM
any of you generous fellas around the 818 area?:)
Everyday! Let me know and I can bring it into work, meet you at lunch and Git-R-done!

hey grant, that would be great. if possible, id like to do it on a tuesday or thursday. i go to csun and been to your work before to pick up the socalevo badges :D