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displaying posts 1 to 25 of 32
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| Author | Subject: noise level |
 Rix13
Regular  Location: Scarborough Registered: 06 Oct 2011 Posts: 157 Status: Offline |
Post #1
What angel and distance do noise levels get done at for exhausts. I know it's done at 3.5k and that's bout it, just thinking if I look at track days would be an idea to know how loud mine is to be on safe side. Got a decibel meter kicking about. ________________________________________ www.eastcoastmodified.orgE46 318i tourer SE - Dog Car/Work horse 306 Gti - Track Project |
 Posted 5th Sep 2012 at 22:35
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eliotrw
Seasoned Pro  Location: Southwark Registered: 18 Jul 2010 Posts: 4,864 Status: Offline |
Post #2
Think its like 45 degrees and 1.5m? Someone will cotrect me tho________________________________________ Ex- Phase 3 China GTi-6 T-Reg |
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Posted 5th Sep 2012 at 22:54
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #3
Its not 3.5k, its 3/4 rpm________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 6th Sep 2012 at 07:47
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braymond
Seasoned Pro  Location: Brighton Registered: 20 Aug 2008 Posts: 1,163 Status: Offline |
Post #4
^^ What he said. And its usually 1mNot sure what angel they use though. Mines always been done by a unicorn.. ________________________________________ Rallye-RNurburgring article |
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Posted 6th Sep 2012 at 09:45
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #5
3/4 rpm, 45 degrees from the tailpipe at 1m.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 6th Sep 2012 at 21:24
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #6
And just in case you were wondering, my current setup read 131dB when using this method...   ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 6th Sep 2012 at 21:24
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swiftyboi006
Seasoned Pro  Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #7
Do you wear ear defenders lol________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 12th Sep 2012 at 18:33
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Chris28190
Senior User  Location: . Registered: 15 Apr 2012 Posts: 736 Status: Offline |
Post #8
stan_306gti6 wrote: And just in case you were wondering, my current setup read 131dB when using this method... Do you not get pulled over for your car being too loud? Haha that's insane for road use. ________________________________________ Cherry Rallye '99 - Sold |
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Posted 12th Sep 2012 at 20:49
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armzsc6
Seasoned Pro  Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #9
Is that just at fast idle rather than full throttle to that speed etc?________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 12th Sep 2012 at 22:53
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ballardpaul
Seasoned Pro  Location: Croydon Registered: 22 Jul 2008 Posts: 4,135 Status: Offline |
Post #10
Chris28190 wrote: stan_306gti6 wrote: And just in case you were wondering, my current setup read 131dB when using this method... Do you not get pulled over for your car being too loud? Haha that's insane for road use. He might do if he ever drove it... ________________________________________ Phase 2 Blaze GTi 6 (Standard) SoldPhase 3 Supercharged China GTi 6 (249.8 BHP) Sold Phase 3 Supercharged Diablo GTi 6 (443 BHP)Sold Nissan 350Z (300 BHP) |
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Posted 12th Sep 2012 at 23:01
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owain
Seasoned Pro  Location: Essex Registered: 20 May 2009 Posts: 9,185 Status: Offline |
Post #11
Two things to consider if you think you might be near the limit:1) Cheap noise meters are crap, just because it's under on yours doesn't mean you'll pass 2) Just because you scrape a noise test in the pits doesn't mean they won't ban you if you're too loud on track. This more tends to be the case with turbo cars which are off boost when doing a noise test but then unleash 140db of ungodly fury when you give it some on track. Unless you're running super high boost there's no need for an exhaust to be so loud it fails a test, putting a sensible exhaust on will save you a fortune in wasted track days. ________________________________________ Membership expiring soon, get in contact on our new little forum project. |
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Posted 13th Sep 2012 at 07:15
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #12
armzs16 wrote: Is that just at fast idle rather than full throttle to that speed etc? That is using the method above, 45 degree angle from the tailpipe at 1 metre using 3/4 revs. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 13th Sep 2012 at 11:41
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #13
ballardpaul wrote: Chris28190 wrote: stan_306gti6 wrote: And just in case you were wondering, my current setup read 131dB when using this method... Do you not get pulled over for your car being too loud? Haha that's insane for road use. He might do if he ever drove it... It will get driven one day I promise... ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 13th Sep 2012 at 11:42
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Chris28190
Senior User Location: . Registered: 15 Apr 2012 Posts: 736 Status: Offline |
Post #14
stan_306gti6 wrote: ballardpaul wrote: Chris28190 wrote: stan_306gti6 wrote: And just in case you were wondering, my current setup read 131dB when using this method... Do you not get pulled over for your car being too loud? Haha that's insane for road use. He might do if he ever drove it... It will get driven one day I promise... When you sell it onto someone else maybe? ________________________________________ Cherry Rallye '99 - Sold |
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Posted 13th Sep 2012 at 11:46
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #15
No, I will drive it again when I get round to it...________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 13th Sep 2012 at 11:47
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eliotrw
Seasoned Pro Location: Southwark Registered: 18 Jul 2010 Posts: 4,864 Status: Offline |
Post #16
Its scrap tbh.5k? ________________________________________ Ex- Phase 3 China GTi-6 T-Reg |
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Posted 14th Sep 2012 at 09:30
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #17
eliotrw wrote: Its scrap tbh. 5k? Bloody cheek! ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 14th Sep 2012 at 10:37
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prism7guy
Seasoned Pro  Location: DoncastAAAAARGH Registered: 13 Jan 2008 Posts: 4,640 Status: Offline |
Post #18
Just had a pdf sent through from Javelin for a trackday i'm doing next week at Anglesey. "Compulsory Noise Testing: All Cars will be required to not exceed a maximum sound emissions test of 105dBs. This is measured at a ¾ of max revs @1/2 metre from each exhaust outlet. Cars will be noise tested prior to joining the circuit." ________________________________________ Goldie the track car. |
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Posted 14th Sep 2012 at 17:04
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owain
Seasoned Pro Location: Essex Registered: 20 May 2009 Posts: 9,185 Status: Offline |
Post #19
Yeah but it's Javelin, so they won't care as long as you don't take the p**s ________________________________________ Membership expiring soon, get in contact on our new little forum project. |
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Posted 14th Sep 2012 at 17:07
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #20
I stand corrected, it IS 1/2 metre not 1m.  Anyway, yes most circuits have the same limit of 105dB, except Brands Hatch GP which is 101dB. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Sep 2012 at 10:00
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tvrfan007
Seasoned Pro  Location: In the garage Registered: 29 May 2005 Posts: 3,488 Status: Offline |
Post #21
f**k a duck, 131 db? Good luck with your hearing in later life. There are a few 98db's kicking about too so always read your trackday label. Turbos were easy for passing the noise test.  ________________________________________ I'm Si btw Night Blue VW Golf GTD Bianca LBSC Rallye - Track/Road Slag Project Thread Sparkling Silver Mini Cooper D - Super Dooper - (The other half's wheels) |
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Posted 15th Sep 2012 at 11:49
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prism7guy
Seasoned Pro Location: DoncastAAAAARGH Registered: 13 Jan 2008 Posts: 4,640 Status: Offline |
Post #22
tvrfan007 wrote: Good luck with your hearing in later life. What? ________________________________________ Goldie the track car. |
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Posted 15th Sep 2012 at 12:54
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #23
prism7guy wrote: tvrfan007 wrote: Good luck with your hearing in later life. What? ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Sep 2012 at 18:44
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eliotrw
Seasoned Pro Location: Southwark Registered: 18 Jul 2010 Posts: 4,864 Status: Offline |
Post #24
how loud is a typical decated low boost with a magnex 3inch or jetex etc anyone know?________________________________________ Ex- Phase 3 China GTi-6 T-Reg |
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Posted 17th Sep 2012 at 23:44
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ballardpaul
Seasoned Pro Location: Croydon Registered: 22 Jul 2008 Posts: 4,135 Status: Offline |
Post #25
With a magnex bloody loud. Mine was, it's louder than my super high boost. Didn't have a centre box though...________________________________________ Phase 2 Blaze GTi 6 (Standard) SoldPhase 3 Supercharged China GTi 6 (249.8 BHP) Sold Phase 3 Supercharged Diablo GTi 6 (443 BHP)Sold Nissan 350Z (300 BHP) |
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Posted 18th Sep 2012 at 11:08
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