Failed sound level check at Autox
I race with the NER and had to comply with the sound rules. My ATR system did not make it. I tried the cones and they did nothing. Directing a turndown away from the meter worked untill the officals wised up and moved the meter a few times during the event. I added an 18 in dynomax bullet muffler in the int pipe after the cat/ypipe and that got me below sound.
The SCCA will be implementing a nation wide sound limit sonn because they are losing sites to noise complaints, NER is stricter, and its even worse if you run up at NHIS
The SCCA will be implementing a nation wide sound limit sonn because they are losing sites to noise complaints, NER is stricter, and its even worse if you run up at NHIS
Originally Posted by BillS
I race with the NER and had to comply with the sound rules. My ATR system did not make it. I tried the cones and they did nothing. Directing a turndown away from the meter worked untill the officals wised up and moved the meter a few times during the event. I added an 18 in dynomax bullet muffler in the int pipe after the cat/ypipe and that got me below sound.
The SCCA will be implementing a nation wide sound limit sonn because they are losing sites to noise complaints, NER is stricter, and its even worse if you run up at NHIS
The SCCA will be implementing a nation wide sound limit sonn because they are losing sites to noise complaints, NER is stricter, and its even worse if you run up at NHIS
So I am on the right track about tossing the bullet on the intermediate pipe. They told me I could put a tip that is turned down, but I didn't see how that would help a lot. It's not really fixing the problem
I'd like to try the SLP dual/dual with one of those Dynomax bullets in the intermediate pipe to see how that works.
Now, if I could get my hands on any type of SLP non loudmouth setup... anyone know of anyone selling one locally?
Other options I've looked up on random searches were the Hooker muffler. That got some good reviews for being quiet, but again its random people on the forums and I can't always rely on them.
Now, if I could get my hands on any type of SLP non loudmouth setup... anyone know of anyone selling one locally?
Other options I've looked up on random searches were the Hooker muffler. That got some good reviews for being quiet, but again its random people on the forums and I can't always rely on them.
My car came with a dual-dual and it was super quiet. I switched to a LM1 and it was fine untill the headers and motor work. I switched the the ATR and I liked it but was over the limit, Adding the 18in bullet worked fine. You very well might be fine with just a dual-dual if you can get one. I still have mine and am not letting it go.
Also were you the white camaro at the evo school? If so I saw you, I was there in my wifes WRX, autoxing in the snow sucks on V710's. If that was you, you are loud, there were a few comments about it over in the challenge school
Also were you the white camaro at the evo school? If so I saw you, I was there in my wifes WRX, autoxing in the snow sucks on V710's. If that was you, you are loud, there were a few comments about it over in the challenge school
Originally Posted by BillS
My car came with a dual-dual and it was super quiet. I switched to a LM1 and it was fine untill the headers and motor work. I switched the the ATR and I liked it but was over the limit, Adding the 18in bullet worked fine. You very well might be fine with just a dual-dual if you can get one. I still have mine and am not letting it go.
Also were you the white camaro at the evo school? If so I saw you, I was there in my wifes WRX, autoxing in the snow sucks on V710's. If that was you, you are loud, there were a few comments about it over in the challenge school
Also were you the white camaro at the evo school? If so I saw you, I was there in my wifes WRX, autoxing in the snow sucks on V710's. If that was you, you are loud, there were a few comments about it over in the challenge school
That was a pretty rough day. I'm currently probably the loudest car I've ever heard at an autox event. I get a lot of compliments, but it's def not going to stay that way, lol LS1 Tech Stories
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Originally Posted by Slowhawk
Hooker sucks and will not pass.
Listen
All you need is a SLP dual/dual -no bullit
or a Magnaflow with a bullit
Kids never listen do they?
Listen
All you need is a SLP dual/dual -no bullit
or a Magnaflow with a bullit
Kids never listen do they?
So I'll make sure I pick up the Hooker, run mac mids, and swap my cam out for a 210/214 .630/.654 with a 124 LSA...
seriously though that definitely helps. The search is on for a dual/dual
