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> GGR a/x noise restriction, what's too loud?
Trekkor
post Oct 25 2004, 08:35 PM
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Is it dependant on venue? Alameda for example.

I want to run these mega-phone, trumpet, zoomie pipes I got from Martin Baker.

I know they will be LOUD. Will they boot me. ( make me muffler up )?

KT
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Jeroen
post Oct 25 2004, 08:48 PM
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megaphones give no back pressure so you'll prolly end up with very little low rpm torque
not good for AX...
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Trekkor
post Oct 25 2004, 08:52 PM
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But, I might like the sound... (IMG:style_emoticons/default/lol2.gif)

KT
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nebreitling
post Oct 25 2004, 09:13 PM
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they'll be loud as shit. i should hope you'd be stopped from running, but GGR has seemed pretty relaxed about noise limits at the last few AX's. i think the limit at Alameda is 94db, but there were atleast 4 or 5 cars last AX well above that...


but i don't think they'll help you in an AX anyway (IMG:style_emoticons/default/sad.gif)
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nine14cats
post Oct 25 2004, 09:46 PM
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Hi Trekkor,

The Alameda sound limit is supposed to be the same as Laguna Seca....92db. At Alameda I run my Laguna set up which makes the sound limit at the meter shack just after turn 5. All other Auto-x venues I was able to use my Phase 9's which would work out to ~98db on my 2.7 liter 6 with headers.

I think you will be too loud with the megaphones, although there were several cars this year that sounded too loud.

Bill P.
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Trekkor
post Oct 25 2004, 09:55 PM
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I might put 'em on Thurs night and buzz around the back roads scuffin' the Yok's. Playin' race cars (IMG:style_emoticons/default/ohmy.gif)

KT
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McMark
post Oct 25 2004, 10:07 PM
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Come by here and see if I'm home. I wanna hear.
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Randal
post Oct 25 2004, 10:12 PM
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QUOTE]i think the limit at Alameda is 94db[/QUOTE]

That is the limit, but it's not scientifically enforced. The way it works - if anyone complains about a car then the AX chairman let's that driver know there is a problem – and expects it corrected before the next event.

BTW if the sound level was measures/enforced uniformally amongst all runners, then there would be lots of people changing mufflers between events.

As to the next question, who are the biggest complainers, you’ll have to guess.
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Trekkor
post Oct 25 2004, 10:19 PM
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Mark, If I come by you'll hear me come across Silverado Trail. (IMG:style_emoticons/default/lol2.gif)

Randal, I'm thinking, 911 guys?

So, if I show up all loud and obnoxious, do I pack the Bursch in case someone doesn't like the vroom, vroom?

Trek
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Randal
post Oct 25 2004, 10:24 PM
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Nope, not the 911 guys.

Although my calculated guess is that most of the offenders do drive 911's.

Did I tell you Trekkor that I heard a 911 with 40 series flowmasters and that it sounded great, but not loud?
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Trekkor
post Oct 25 2004, 10:29 PM
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I like a loud race car.

So, maybe the people who bring their sleeping babies with them are grumpy.

Oh, BTW, Randal, I'll be down at HPH in the morning for the alignment and....I'll surprise you!

Trek
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Randal
post Oct 25 2004, 10:35 PM
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Mr. T.

Give me a call in the morning and maybe I pop up for lunch.

Maybe Brad will be available as well?
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nine14cats
post Oct 25 2004, 10:50 PM
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Randal and Trekkor,

What time for lunch? (IMG:style_emoticons/default/laugh.gif)

Bill P.
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Britain Smith
post Oct 25 2004, 10:54 PM
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I would be in for lunch also...let me know what time.

-Britain
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Demick
post Oct 25 2004, 11:02 PM
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This weekend is at Candlestick. Noise shouldn't be a problem there. Alameda is where excessive noise is a problem.

There was a guy at the WCC with a nitrous 914. He had some straight pipes similar to the megaphones you want to put on. I was surprised that the car was not nearly as loud as I expected.

Demick
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Mueller
post Oct 25 2004, 11:05 PM
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QUOTE
But, I might like sound.....


the sound you hear while [b]in the car/b] is loud obnoxious noise to people outside of the vehicle (IMG:style_emoticons/default/smile.gif)

I also see no reason to try and "test" the sound limits just 'cause you think your car will sound cool or that you "want" to get the car blackflagged for being loud....maybe it's just me, but i'd be embarrassed getting dinged for having an exhaust that i knew from jump street was just put on so that I get noticed while driving out there on the course... (IMG:style_emoticons/default/smash.gif)

I'm not trying to be ass, but I think this boarders on being inconsiderate to your fellow racers......

now if you are putting on an exhuast that you know will give you XXhp and you need that edge, that is different in my opinion...(off my soapbox )


(IMG:style_emoticons/default/beerchug.gif)
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Britain Smith
post Oct 25 2004, 11:07 PM
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QUOTE(Demick @ Oct 25 2004, 10:02 PM)
This weekend is at Candlestick. Noise shouldn't be a problem there. Alameda is where excessive noise is a problem.

There was a guy at the WCC with a nitrous 914. He had some straight pipes similar to the megaphones you want to put on. I was surprised that the car was not nearly as loud as I expected.

Demick

It wasn't that loud to you but you weren't driving behind it and sniffing the fumes!!!

-Britain
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McMark
post Oct 25 2004, 11:12 PM
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Okay, if it's going to be a big lunch gathering, maybe I can bum a ride with Trekkor and join in. What time's your appointment Kairos?
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Trekkor
post Oct 25 2004, 11:17 PM
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Mike, thanks.

maybe I should reconsider. (IMG:style_emoticons/default/idea.gif)

Good points.

I'm not a showboater, never have been.
I like the sound of loud motors, always have.

I love the sound of a stinger in a covered parking garage or tunnel.

I had a VW crew cab with a 2110cc and stinger, loved it.

KT
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Mueller
post Oct 25 2004, 11:28 PM
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QUOTE
It wasn't that loud to you but you weren't driving behind it and sniffing the fumes!!!


not to diss him, but when he left Laguna Seca, my wife and I watched him go up a small hill, as his car got louder and louder my wife asked why the car was getting louder, but not going any faster going up the hill???

the proportion of sound to speed was not very even (IMG:style_emoticons/default/smile.gif)

Trekkor, at least give them a try, maybe they wont be as bad as we are making them out to be (IMG:style_emoticons/default/wink.gif)
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