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  #101  
Old 26-03-2010, 10:13 PM
Spooky Spooky is offline
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Who are you insured with Moley? I'm with greenlight and they do £50 a day and my excess is doubled for that day in the event of a claim. I think Gary Moulson soes this too and a few others...
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  #102  
Old 26-03-2010, 10:19 PM
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Who are you insured with Moley? I think Gary Moulson does this too and a few others...
He is Gary!!!
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  #103  
Old 26-03-2010, 10:20 PM
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Who are you insured with Moley? I'm with greenlight and they do £50 a day and my excess is doubled for that day in the event of a claim. I think Gary Moulson soes this too and a few others...
Yeah come Moley (Mr Gary Moulson) who are you insured with
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  #104  
Old 26-03-2010, 10:21 PM
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brilliant, i think you found your man spooky.lol
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  #105  
Old 26-03-2010, 10:26 PM
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OH WHAT!? what are the chances!? PMSL! I fail so bad!!!

First the Syvecs or Solaris debate, now this!

Someone PLEASE pass me my coat ASAP!

HAHAHA!
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  #106  
Old 26-03-2010, 10:26 PM
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Originally Posted by Scooby Si View Post
Is there a plan to get together and noise test the cars?? Maybe we could sort something for the Westie meet if enough of us can make it. (And we can get hold of a meter of course!)
We're planning on doing noise testing at the Pease Pottage meet, just waiting for Crowman to confirm he can attend with the db meter
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  #107  
Old 26-03-2010, 10:27 PM
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Someone PLEASE pass me my coat ASAP!

HAHAHA!


made me chuckle!
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  #108  
Old 26-03-2010, 10:29 PM
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Originally Posted by Spooky View Post
OH WHAT!? what are the chances!? PMSL! I fail so bad!!!

First the Syvecs or Solaris debate, now this!

Someone PLEASE pass me my coat ASAP!

HAHAHA!
Can't wait for your third FAIL, bet its gonna be a good one lol
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  #109  
Old 26-03-2010, 10:31 PM
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Can't wait for your third FAIL, bet its gonna be a good one lol

Epic... simply Epic!

I fail at life!!
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  #110  
Old 26-03-2010, 10:31 PM
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We're planning on doing noise testing at the Pease Pottage meet, just waiting for Crowman to confirm he can attend with the db meter

What date is this meet steve?
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  #111  
Old 26-03-2010, 10:32 PM
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Quote:
Originally Posted by Steve_PPP View Post
We're planning on doing noise testing at the Pease Pottage meet, just waiting for Crowman to confirm he can attend with the db meter
Good stuff... Just don't think I'd trust the db meter on my phone!!
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  #112  
Old 26-03-2010, 10:33 PM
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What date is this meet steve?
Easter Sunday...
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  #113  
Old 26-03-2010, 10:37 PM
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Don't think I'd trust the db meter on my phone!!
Have you tryed it out of interest Si?
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  #114  
Old 26-03-2010, 10:37 PM
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Easter Sunday...

Dam i'm away that weekend. Thinking of buying a sound meter. Only £60 from somehwere like maplins... i'm sure it would come in handy for times like these.
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  #115  
Old 26-03-2010, 11:06 PM
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Have you tryed it out of interest Si?
We had a bit of a try with Angers a couple of weeks a go but I don't think he was revving that high but it was under 100db... Will try to have a go this weekend a post up the results.
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  #116  
Old 26-03-2010, 11:31 PM
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Thinking of buying a sound meter. Only £60 from somehwere like maplins.
This doesn't look a bad one for the money.....

http://cgi.ebay.co.uk/Sound-Noise-Le...item27ad9f2b26
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  #117  
Old 26-03-2010, 11:34 PM
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Quote:
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they do £50 a day and my excess is doubled for that day in the event of a claim
Hmmm, might have to speak to the insurers on Monday, looks like we're being over charged. (they charge us £60)
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  #118  
Old 26-03-2010, 11:36 PM
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Will we have to get cover for the whole day to cover 40mins Gary??
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  #119  
Old 26-03-2010, 11:56 PM
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Quote:
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Will we have to get cover for the whole day to cover 40mins Gary??
Am working on that

Hope to ge it for £30 instead of the £60, but waiting for an answer
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  #120  
Old 27-03-2010, 12:10 AM
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Quote:
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Hope to ge it for £30 instead of the £60, but waiting for an answer
Topman
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  #121  
Old 27-03-2010, 12:56 AM
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nice one Gary, let us know if you can sort something out
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  #122  
Old 27-03-2010, 11:40 PM
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right, this is now posted on Sussex, Surrey and Kent
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  #123  
Old 27-03-2010, 11:57 PM
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Steve.. I promise not to make a habit of correcting you but you've post up a 102db limit on Surrey... It changed to 105db when the date changed
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  #124  
Old 28-03-2010, 12:02 AM
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Quote:
Originally Posted by Scooby Si View Post
Steve.. I promise not to make a habit of correcting you but you've post up a 102db limit on Surrey... It changed to 105db when the date changed
Sorry mate - it was 98db i think and it changed to 102db. The 105db is for sessions at Brands that finish before 5pm

Its all in post #20 again
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  #125  
Old 28-03-2010, 12:27 AM
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You're quite right mate... 1-1 I'd managed to get it into my head it had changed to 105! Which leads on to me saying 'b#####ks' 105db was gonna be pushing it a bit, can't see me getting in under 102db even with the bung!
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  #126  
Old 28-03-2010, 04:30 PM
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Quote:
Originally Posted by Scooby Si View Post
You're quite right mate... 1-1 I'd managed to get it into my head it had changed to 105! Which leads on to me saying 'b#####ks' 105db was gonna be pushing it a bit, can't see me getting in under 102db even with the bung!
could join me at 3pm and go in the 105db and could sneak out
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  #127  
Old 28-03-2010, 05:49 PM
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Right, Crowman (Martyn) has confirmed he can make it to the Sussex meet at Pease Pottage with a calibrated db meter - we can therefore do noise testing if anyone wants to know how loud their car is before booking a session at Brands.

If you've got a bung, bring that too so we can see how loud you are both with and without if necessary

The Sussex meet is at Pease Pottage service station, 12pm Sunday 4th April


I know its Easter Sunday but I hope you can all make it If people fancy it, most people normally head over to the Flight Tavern pub for lunch at 1pm.
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  #128  
Old 28-03-2010, 05:59 PM
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Quote:
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Chris, are you running from 3pm till the finish?

How long do you have the tuition for?
3 pm till it finishes or the 3 jerry cans !
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  #129  
Old 28-03-2010, 07:11 PM
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Quote:
Originally Posted by Steve_PPP View Post
Right, Crowman (Martyn) has confirmed he can make it to the Sussex meet at Pease Pottage with a calibrated db meter - we can therefore do noise testing if anyone wants to know how loud their car is before booking a session at Brands.

If you've got a bung, bring that too so we can see how loud you are both with and without if necessary

The Sussex meet is at Pease Pottage service station, 12pm Sunday 4th April


I know its Easter Sunday but I hope you can all make it If people fancy it, most people normally head over to the Flight Tavern pub for lunch at 1pm.

Is there any chance of an evening this week as the evenings are lighter ??

I cant make it on Easter Sunday,
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  #130  
Old 28-03-2010, 11:05 PM
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Is there any chance of an evening this week as the evenings are lighter ??
Don't think so - its dependent on Crowman getting the db meter from his work. I'm sure if it is possible, he'll let you know.
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  #131  
Old 29-03-2010, 06:05 PM
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Cant believe it, I have just found out from the mrs that we are still in the New Forrest until 19th, and travelliing back that evening

I will still try and get to the photoshoot if I can convince everyone to leave a bit early. Gutted, as I though I was back on the Sunday evening

Oh well, at least there's Dunsfold to look forward to. The family are coming on that one, and of then theres the ring trip
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Last edited by Lucky; 29-03-2010 at 06:09 PM.
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  #132  
Old 31-03-2010, 11:31 PM
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bump - reminder for anyone who wants to check how noisy their cars is before booking, come along to the Sussex meet at Pease Pottage services, this Sunday at 12pm
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  #133  
Old 31-03-2010, 11:45 PM
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Originally Posted by Steve_PPP View Post
bump - reminder for anyone who wants to check how noisy their cars is before booking, come along to the Sussex meet at Pease Pottage services, this Sunday at 12pm
Mine hasnt a chance in hell
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  #134  
Old 01-04-2010, 12:03 AM
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i might come along for a laugh................db wise!
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  #135  
Old 02-04-2010, 05:21 PM
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My Exhaust has FAILED !!!!

I have a Vortex Afterburner on a 2.5" system and it was reading 112db @ 4650 rpm.


So I would recommend those going to Brands need to get them checked on Sunday at PP.



Looks like my Prodrive back box is going back on.

--------------------------------------------------------------------------------

Right, Crowman (Martyn) has confirmed he can make it to the Sussex meet at Pease Pottage with a calibrated db meter - we can therefore do noise testing if anyone wants to know how loud their car is before booking a session at Brands.

If you've got a bung, bring that too so we can see how loud you are both with and without if necessary

The Sussex meet is at Pease Pottage service station, 12pm Sunday 4th April
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Last edited by BIG"E"; 02-04-2010 at 05:23 PM.
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  #136  
Old 02-04-2010, 06:19 PM
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Guys
We just checked Rich(Dukeboys) Which is 107db
My M3 is 99db on standard system.

Duncans classic uk with prodrive system was 103db

I still think everyone should not get to anal about it,So long as your car is within 3 to 5 db of the allowable limit you should be ok.

One more thing, the db meters from maplin,RS etc are all perfectly ok but only once calibrated, we use sound level meters for acoustic surveys at work and have had off the shelf meters read as much as 9db out compared to a calibrated meter.
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  #137  
Old 02-04-2010, 06:23 PM
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Them db's all sound a bit high in ref to the systems they have, how was they tested (at 45 degress half meter away i think is how they test them)
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  #138  
Old 02-04-2010, 06:25 PM
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I am going to try to get to Pease Pottage on Sunday so you can use mine to check how accurate the db tester is (mine was tested at Brands and was 88bd)

I agree 100% about not being too anal.

I can't see anyone being turned away enless they are massively over the limit
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  #139  
Old 02-04-2010, 06:34 PM
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Granby
Yes half meter 45deg static test at 75% rpm

Moley
88db is very low, ambient noise in an underground station ticket office is between 75 and 80db, sad i know but we install PA/VA systems on LUL.
We have recently been installing the classical music background music you may of heard on the Northern line, This has to be set at 5db above ambient which is around 80db, dependant on size of station and its acoustic construction, just trying to give people an idea of what 80db is in reality,which is in a nutshell not very loud at all

The meter i have is not all singing and dancing,and does not need to be, the important thing is its calibrated to a 94db sound generator.

Would be interesting to test yours for sure.

http://www.javelintrackdays.co.uk/tr...id=5&Itemid=22

P.S

Will only be there for about an hour max guys
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  #140  
Old 02-04-2010, 06:49 PM
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Prepare to be very bored but gives you an idea.

-80?(P) UNDERWATER NUCLEAR SUBMARINE MICROPHONES LISTENING TO SHRIMP CHEWING ON FOOD AT 100 METERS DISTANCE
-30 (N) ONE HUMAN TALKING 20 MILES AWAY ( 60 DB / METER AT A DISTANCE OF 20 MILES )-REF.1.2003
-4 TO +4 (N) THE TICKING OF AN ORDINARY WRISTWATCH AT 1 METER -REF.1 2003
0 (N) BEGINNING OF HEARING, A MOSQUITO 10 FEET AWAY, THE EAR DRUM MOVES LESS -REF.1.1990
THAN 1 / 100 THE LENGTH OF AN AIR MOLECULE (N)
3.5 (P) 1E-10 METERS OF MERCURY = 0.0000000001 METERS OF MERCURY
10 (P) ABSOLUTE SILENCE, ATT-BELL LABORATORY “ QUIET ROOM “
13 (P) ORDINARY LIGHT BULB HUM
15 (N) A PIN DROP FROM A HIEGHT OF 1 CENTIMETER AT A DISTANCE OF 1 METER -REF.1.2003
30 (P) TOTALLY QUIET NIGHTIME IN DESERT-IMPOSSIBLE ANYWHERE NEAR CITY
35 (P) ANECHOIC HEARING TEST ROOM -REF.1. 1998
40 A WHISPER, A NORMAL CONVERSATION IS 60 DB, NORMAL SOUND 70 DB -REF.1.1983
73.98(P) = 1 uBAR = 1 microbar pressure
85 BEGINNING OF HEARING DAMAGE, EARPLUGS SHOULD BE WORN
93.98(P) = 1 PASCAL PRESSURE
100 NORMAL AVERAGE CAR OR HOUSE STEREO AT MAXIMUM VOLUME -REF.1.1982
107-104 (P) THE BEGINNING OF PAIN AT THE MOST SENSITIVE FREQUENCY OF 2750 HERTZ -REF.1.1982
109 ONE SOUND WATT RADIATING AS A PERFECT SPHERE, 4 PI SQUARE METERS -REF.1. 1986
110 A CAR STEREO WITH TWO 6 X 9” SPEAKERS AND 100 WATTS -REF.1.1982
113.81(P) = 1 MILLIMETER WATER
114-107 A VERY LARGE, POWERFUL PORTABLE RADIO REF.1.1982
116 HUMAN BODY BEGINS TO PERCIEVE VIBRATION IN THE LOW FREQUENCIES -REF.1.1986
117-123 HOME STEREO SYSTEM, A VERY LOUD AND POWERFUL 200-2000 WATTS -REF.1.1983
120.24(P) ONE PURE SOUND WATT FLOWING THROUGH 1 SQUARE METER, YOUR ELECTRIC AMPLIFIER MAY BE 3000 WATTS.ALSO A TESTIMONY TO HEARING SENSITIVITY -REF.1.1986
120-130 FRONT ROW AT A ROCK CONCERT- UP TO 200 REFRIGERATOR SIZE SPEAKERS
AND 50000-300000 WATTS OF CLEAN, FULL FREQUENCY SOUND -REF.1.1981
125 DRUM SET-ONLY AT THE MOMENT OF STRIKING, CONTINOUS LEVEL 115
126-130 TYPICAL PROFESSIONAL D.J. SYSTEM -REF.1.1984
127 HUMAN TINNITUS (RINGING IN THE EARS) BEGINS -REF.1.1984
127.48 = 1 pound per square foot
128 (P)HUMAN, LOUDEST SCREAM MEASURED AT A DISTANCE OF 8 FEET 2 INCHES
128 HUMAN HEAD HAIR BEGINS TO DETECT VIBRATION -REF.1.1983
128 HUMAN CAN BEGIN TO DETECT VERY SLOW “BLAST WIND” OF 0.124 METERS/SECOND -REF.1.1983
130 (N)MARCHING BAND-OVERALL LEVEL AT A DISTANCE, 100-200 MEMBERS -REF.1.1996
132 EARDRUM “FLEX” TOTALLY NOTICEABLE -REF.1.1982
132.4(P) = 1 SOUND WATT MAXIMUM IN A SMALL SEALED BOX BELOW HYDRODYNAMIC CRITICAL LOW FREQUENCY
133 (N)GUNSHOT- EAR LEVEL, MAY VARY GREATLY TO SIZE AND TYPE OF GUN,
DURATION CONVERTED TO ONE SECOND, PEAK LEVEL MAY REACH 140-160 (P)
133.98 (P) = 1 MILLIBAR PRESSURE
135-122 (P) “VERY LOUD” CAR STEREO, ONLY BASS LEVEL, HIGHS RARELY ABOVE 115(P) -REF.1.1983
135-130(N) LARGE TRAIN HORN -REF.1.1985
135 HUMAN, A SLIGHT COOLING EFFECT BEGINS TO BE NOTICED, FROM AIR EXPANSION -REF.1.1983
136.498(P) = 1 TORR PRESSURE = 1 MILLIMETER MERCURY
137 HUMAN BODY VIBRATION IS STRONG -REF.1.1983
137-140 HUMAN EAR ALL FREQUENCIES ARE PAINFUL -REF.1.1983
140 EXTREMELY DAMAGING TO HEARING NO MATTER HOW SHORT THE TIME EXPOSURE
140 BLAST WIND = U = (PARTICLE VELOCITY) IS 0.49 METERS PER SECOND OR ABOUT 1 MPH
140 HUMAN THROAT AND VOCAL CORD VIBRATION BEGINS -REF.1.1983
141 HUMAN BODY BEGINS TO FEEL NASUEA AFTER A FEW MINUTES -REF.1.1983
141.918(P) = 1 INCH OF WATER PRESSURE
142 HUMAN BODY CHESTPOUNDING IS INTENCE -REF.1.1983
142 (P) INSIDE A CAR WITH TWO PRO 18 INCH WOOFERS AND 300 WATTS EACH -REF.1.1983
143 HUMAN BODY FEELS AS IF SOMEONE JUST FOOTBALL TACKLED YOUR CHEST -REF.1.1983
144 HUMAN NOSE ITCHES -REF.1.1983
145 HUMAN VISION BEGINS TO VIBRATE MAKING IT SLIGHTLY BLURRY, 1-3 DEGREES -REF.1.1983
145-136 (P)“COMPETITION” CAR STEREO, SIXTEEN 12 OR EIGHT 15, OR FOUR 18 SPEAKERS -REF.1.1983
146.1(P) AIR PARTICLE VELOCITY(WIND) IS 1 METER PER SECOND OR ABOUT 2 MILES PER HOUR
147 (N)FORMULA 1 RACE CAR, 700 HORSEPOWER, CHESTPOUNDING AND SUCTION FORCE ON CALM QUIET
MORNINGS CAN CLEARLY BE HEARD 6 MILES AWAY.-REF.1.1991
148 HUMAN VIBRATION VERY UNCOMFORTABLE AND SLIGHTLY PAINFUL -REF.1.1986
149 HUMAN LUNGS AND BREATHING BEGINS VIBRATING TO THE SOUND -REF.1.1986
150 (N)ROCK CONCERT “THE WHO” TWO 10 STORY STACKS = 144 DOUBLE REFRIDGERATOR SIZED SPEAKERS, ACTUAL LEVEL REACHED 120 DB AT A DISTANCE OF 32 METERS FOR THIS NORMALIZED READING OF 150 DB.CONTINOUS LEVEL 114-118db (P) AT 32 METERS -REF.1.1982
150 ROCK CONCERT SPEAKER AT 1600 WATTS ON THE ACTUAL VIBRATING SURFACE -REF.1.1991
150 HUMAN SENSATION OF BEING COMPRESSED AS IF UNDERWATER IS OVERWHELMING -REF.1.1983
150 HUMAN SOUND EXPERIMENTS DOWN TO 1 TO 2 HERTZ - REF.13.
152 HUMAN VIBRATION IS PAINUL AND ALSO FELT IN ALL JOINTS -REF.1.1983
153 HUMAN THROAT IS VIBRATING SO HARD IT IS ALMOST IMPOSSIBLE TO SWALLOW -REF.1.1983
154 TOY BALLOON POPPING, DEPENDS ON TYPE AND HOW LARGE AND HARD TO INFLATE -REF.1.1986
155 HUMAN BODY COMPRESSION AND EXPANSION TO VIBRATION IS TO THE “CORE” -REF.1.1983
155 HUMAN COOLING EFFECT IS HIGH, AS A GUESS 10 TO 25 DEGREES FARENHEIT? -REF.1.1983
156 (P)IN A MINI-VAN WITH TWENTY 12” WOOFERS AND 19,000 WATTS OF AMPLIFIER POWER.
EACH SPEAKERS IS DISPLACING (PUMPING BACK AND FORTH ) 0.75 INCHES
IF LONG HAIR WOMEN SIT IN IT, HER HAIR WILL FLY OUT OF WINDOW WITH BASS
WINDSHIELD WIPERS FLY OFF VEHICLE 1/2 TO 2 INCHES, DOOR AND FRONT
WINDSHIELD FLEXION MAY BE UP TO +-2 INCHES OR 4 INCHES PEAK TO PEAK
EVEN WITH EARPLUGS (-30 DB) AND HEADMUFFS (-24 DB) = -54 DB IT’S STILL LOUD -REF.1.1997
156.498(P) = 1 CENTIMETER MERCURY = 0.01 METERS MERCURY
158 HUMAN BODY VIBRATION IS VIOLENT, NAUSEA BECOMES MORE INTENCE -REF.1.1983
158 (P)INSIDE A ROCK CONCERT SPEAKER BOX REFRIDGERATOR SIZE AT MAX. 5000 WATTS -REF.1.1983
160 (P)FLASHLIGHTS EXHIBIT ELECTROMAGNETIC PULSING-EMP (DIMMING DURING SOUND) -REF.1.1983
162 U.S. FESTIVAL ROCK CONCERT 1983. 10 SEPARATE STACKS, AMPS = 400,000 WATTS (N) -REF.1.1983,-REF.3.
163-153 (N) N.H.R.A. DRAGSTERS- 5000 TO 7000 HORSEPOWER, LIQUID NITROGLYCERIN FUEL,
EARTHSHAKING AT 50 FEET, HUMANS FIND IT HARD TO SEE, AND BREATHE 140db(P) -REF.1.1987
163 (P)GLASSBREAKING LEVEL, MINIMUM, IT IS VERY HARD TO BREAK GLASS WINDOWS.
MANY STORIES COME FROM BREAKING GLASS BUT IT IS HIGHLY VARIABLE: IT IS
EASIER TO BREAK IF THE WINDOW ALREADY HAS A CRACK, IS VERY LARGE OR
OLD AND BRITTLE AND NOT CAR SAFETY GLASS WHICH CAN FLEX MASSIVELY
BEFORE BREAKING. AN OPERA SINGER AT 110 DB MAY BREAK A WINEGLASS BUT IT IS AN
EXAMPLE OF FREQUENCY RESONANCE, AND NOT HIGH SOUND DB LEVEL -REF.1.1987
163 (N)OCEAN WHALE REFERENCE 2 EXP-5 NEWTONS PER SQUARE METER
164 (P)INTERNAL SOUND PRESSURE OF A LARGE JET AIRPLANE TURBINE MOTOR -REF.1.1993
164.568(P) = 1 INCH MERCURY PRESSURE
165-145 (NP) THE COMMON TYPE OF FIREWORKS AT PROFESSIONAL PYROTECHNIC SHOWS -REF.1.1988
165 (N)JET AIRPLANE, BOEING 727-15,000 LBS OF THRUST, DEPENDS ON THE TAKEOFF -REF.1.1982
165(P) MOTOR DRIVEN PISTON HEADPHONES -REF.16.
166 AIR PARTICLE VELOCITY IS 10 METERS PER SECOND OR ABOUT 20 MILES PER HOUR
170.75 PRESSURE (P) = 1 P.S.I. = 1 POUND PER SQUARE INCH MOST SOUND READINGS
HIGHER THAN THIS REFER TO P.S.I. INSTEAD OF DB. BUILDINGS AND HOUSES
HAVE APPROXIMATELY A 50 % CHANCE OF SURVIVAL REF.2.
171-150 (P)WORLDS LOUDEST CAR STEREOS, UP TO 80 SPEAKERS,32 CAR BATTERYS,
100,000 WATTS, 125-138 (N)
171(P) acoustic air pressure generator -ref.12
172 (N) 727, 737, 747, 757, 767 CRUSING AT 6 MILES HIGH MACH 0.84, AT THE GROUND (SEA LEVEL) LOSES AN ADDITIONAL 6 DB BECAUSE AIR DENCITY IS ONLY HALF SEA LEVEL AT A HIEGHT OF 6 MILES
172 FOG IS CREATED, DEPENDING ON THE TEMPERATURE, DEW POINT AND HUMIDITY
173-164 (P)BASS INJECTION TESTS, EXPIERIMENTAL ELECTROMAGNETIC TYPE SPEAKERS -REF.1.1987
173(P) = hydraulic, whole body dynamic pressure chamber, at 8 hertz -ref.11.
174 AIR BEGINS TO HEAT UP DUE TO COMPRESSION, MOST SHOCK WAVES ARE VERY HOT
174(P) LOUDSPEAKER COUPLED MANOMETER HEADPHONES DOWN TO 1 HERTZ -REF.15.
175 (N) QUARTER DYNAMITE STICK, VERY CLOSE PRESSURE MAY EXCEED 210 db (P)
175.8(P) 1 TON T.N.T. AT 250 FEET
177 (P) = 2 P.S.I., DAMAGE TO STRUCTURES ARE SIGNIFICANT, 30% SURVIVAL -REF.2.
180 (P) 1 POUND T.N.T. AT 15 FEET -REF.4.
180 (P) = 3 P.S.I., DAMAGE TO STRUCTURES IS CATASTROPHIC, WHEN A SHOCK -REF.2.
WAVE HITS A STRUCTURE ITS MOMENTUM AND PRESSURE MORE THAN DOUBLES, ESPECIALLY AT HIGHER DB LEVELS, DYNAMIC WIND IS ABOUT 103 MILE / HOUR
AND CAUSES A LARGE PORTION OF DAMAGE, 15 % OBJECT SURVIVAL -REF.2.
180 (P) = MOTOR DRIVE COUPLED MANOMETER STATIC PRESSURE, 165 DB(P) UP TO 50 HERTZ, -REF.14.
182 (P) 1 TON T.N.T AT 150 FEET, EXACTLY 182.2 DB -REF.4.
183 (P) = 6 P.S.I. TOTAL DESTRUCTION OF ALL STRUCTURES, PARTICLE VELOCITY
(BLAST WIND) IS 180 MILES PER HOUR. 0.9 MILES FROM HIROSHIMA ATOMIC BOMB
AND 3.3 MILES FROM 1MEGATON NUCLEAR BOMB, LESS 0.1 % OBJECT SURVIVAL -REF.2.
185.75 (NP) 0.375 POUNDS OF T.N.T. RIECHTER -1.5
186.1(P) 1 POUND T.N.T AT DISTANCE OF 10 FEET -REF.4.
187 (P) 1 TON T.N.T. AT 100 FEET, EXACTLY 186.8 DB -REF.4.
190.60 (NP) RIECHTER SCALE 0 (ZERO) EARTHQUAKE
190.60 (NP) 2.0000 POUNDS T.N.T.
191 (N)BOMB-VERY SMALL 1 LB. OR GRENADE, VERY CLOSE PRESSURE MAY EXCEED 210 db (P)
193.806(P) = 1 KILOGRAM PER SQUARE CENTIMETER
193.979(P) = 1 BAR PRESSURE = 14.504 POUNDS PER SQUARE INCH = 14.504 P.S.I.
194.09(P) = 1 (ONE) AIR ATMOSPHERE = 14.6962 POUNDS PER SQUARE INCH = 14.6962 P.S.I.= 1 ATM
SOUND WAVES DISTORT AND ARE NOW DEFINED AS SHOCK WAVES AND THEY BEGIN TO FOLLOW SHOCK WAVE BEHAVIOR. PARTICLE VELOCITY (BLAST WIND) = 590 FEET / SECOND = 180 METERS PER SECOND = 402 MILES PER HOUR. -REF.2.
194.1(P)EXACTLY, 1 POUND T.N.T. AT 6 FEET -REF.4.
195-190 (P) HUMAN EARDRUMS RUPTURE 50 % OF TIME -REF.2.
195.2(P) 1 TON T.N.T. AT 60 FEET -REF.4.
200.59 (NP) 63.24 POUNDS OF T.N.T., RIECHTER SCALE 1
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  #141  
Old 02-04-2010, 06:54 PM
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Quote:
Originally Posted by BIG"E" View Post
My Exhaust has FAILED !!!!

I have a Vortex Afterburner on a 2.5" system and it was reading 112db @ 4650 rpm.
Blimey, that sounds loud Especially as the static test at Brands is 75% of the redline, which is 5250rpm (assuming 7k redline on scoobs).

Mine was 101db at 5250rpm when tested at Goodwood, so would be good to compare as well.
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  #142  
Old 02-04-2010, 07:21 PM
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Quote:
Originally Posted by Steve_PPP View Post
Blimey, that sounds loud Especially as the static test at Brands is 75% of the redline, which is 5250rpm (assuming 7k redline on scoobs).

Mine was 101db at 5250rpm when tested at Goodwood, so would be good to compare as well.
If yours is 101 dread to think what mine is then
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  #143  
Old 02-04-2010, 07:31 PM
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Yeah mine is very quiet, wanted a quiet one so i wouldn't get any problems in track days!!!

When it was tested at Snetterton in October it was 87db, then 88db at Brands in Feb
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  #144  
Old 02-04-2010, 07:45 PM
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If yours is 101 dread to think what mine is then
That was 101 with the new Tornado 2 backbox, would expect my Prodrive backbox to be under 100
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  #145  
Old 02-04-2010, 08:18 PM
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THE ABOVE FIGURES SOUND VERY LOUD
Mine was 97dB at Goodwood, scoobysport downpipe, centre section and tsl grp n rear box.
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  #146  
Old 02-04-2010, 09:13 PM
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Guys another thing is when you get tested at a track day they nearly always wander up and point the meter at the rear of car and thats it, when we tested at half a meter it was so surprising just how close that is.
I will bring the meter with cal cert to brands just to prove a point if anyone gets pulled.
Wonder if they get theres calibrated every year!
Also if your in a queue of cars and tested the db level will be considerably diferent to a test taken with no solid objects near by.
Is a shame i didnt grab our 94db signal generator to confirm the acuracy of the meter, but its cal is in date so should be fine.
I know i have been to track days at brands where evo's have been loud to say the least and they spent all day out there!
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  #147  
Old 02-04-2010, 09:37 PM
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Quote:
Originally Posted by Crowman View Post
Guys another thing is when you get tested at a track day they nearly always wander up and point the meter at the rear of car and thats it, when we tested at half a meter it was so surprising just how close that is.
I will bring the meter with cal cert to brands just to prove a point if anyone gets pulled.
Wonder if they get theres calibrated every year!
Also if your in a queue of cars and tested the db level will be considerably diferent to a test taken with no solid objects near by.
Is a shame i didnt grab our 94db signal generator to confirm the acuracy of the meter, but its cal is in date so should be fine.
I know i have been to track days at brands where evo's have been loud to say the least and they spent all day out there!
Agree 100%

If you think your exhaust will be borderline i'd say do it anyway, i am sure you'll be fine
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  #148  
Old 02-04-2010, 10:11 PM
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Quote:
Originally Posted by Moley_WRX View Post
Agree 100%

If you think your exhaust will be borderline i'd say do it anyway, i am sure you'll be fine
Couldnt agree more
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  #149  
Old 02-04-2010, 10:57 PM
DukeBoy DukeBoy is offline
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Will be booking mine sunday (might even see if i can book it while i'm up there).....fingers crossed
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  #150  
Old 04-04-2010, 11:59 AM
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bump, reminder that if you want to come to Brands, you can get your car noise tested at Pease Pottage services today between 12-1pm (just look for the large gathering of Subarus )
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