kosmic Posted September 2, 2006 Share Posted September 2, 2006 Tried searching for this info but cant seem to find anything. Was just wondering if anyone has taken any noise level figures in dB of say 1) stock turbos,decat & aftermarket exhaust like a RSR/Nur Spec etc 2) Single turbo with ext. wastegate and say a 3" DP/Mp & Exhaust? many thanks Quote Link to comment Share on other sites More sharing options...
Class One Posted September 2, 2006 Share Posted September 2, 2006 1) Loud 2) Louder :d I know not very helpful, but couldn't resist! Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 1) Loud 2) Louder :d I know not very helpful, but couldn't resist! Lol very helpful Doug Need some numbers guys (dB not your mobile numbers) Quote Link to comment Share on other sites More sharing options...
Daston Posted September 2, 2006 Share Posted September 2, 2006 is there a legal noise limit class one? When the fuzz pulled me over he gave me a real hard time about the noise, however I have both cats in it passed its mot and my old mans stock griff is far louder. I did say to the copper that it was no louder than a super bike or fearri (god I cant spell that) Quote Link to comment Share on other sites More sharing options...
Class One Posted September 2, 2006 Share Posted September 2, 2006 is there a legal noise limit class one? When the fuzz pulled me over he gave me a real hard time about the noise, however I have both cats in it passed its mot and my old mans stock griff is far louder. I did say to the copper that it was no louder than a super bike or fearri (god I cant spell that) Some info here, but Police need to prove your noise emissions with a decibel meter in order to prosecute you and its not a standard issue bit of kit to traffic. As for Mot's its the opinion of the tester that counts as to wether its too noisy or not. Sorry for slight hi jack back on topic now. Quote Link to comment Share on other sites More sharing options...
Gazboy Posted September 2, 2006 Share Posted September 2, 2006 I'd take a wild guess as 1) being in the mid-high nineties and 2) being well over 100db. JamieP's failed 97db, but TerryS's was really really close to 97db (Brunters limit) iirc. I'd have though a single with a screamer would have far more problems with a drive by test than a static. Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 Some info here, but Police need to prove your noise emissions with a decibel meter in order to prosecute you and its not a standard issue bit of kit to traffic. As for Mot's its the opinion of the tester that counts as to wether its too noisy or not. Sorry for slight hi jack back on topic now. No probs. Was just looking at the FIA GT2/GT3 noise regs and states that the maximum level is 110dB. Now we all know how loud race cars are compared to normal tuned cars but that level seems low in camparison to how much noise they put out. I know noise level increases exponentionally but even some of the loud single cars on here i swear i read somewhere had really high noise readings but i still cant see how theyd be louder than 110dB limited GT cars....maybe im just being a geek Quote Link to comment Share on other sites More sharing options...
Darren Posted September 2, 2006 Share Posted September 2, 2006 No probs. Was just looking at the FIA GT2/GT3 noise regs and states that the maximum level is 110dB. Now we all know how loud race cars are compared to normal tuned cars but that level seems low in camparison to how much noise they put out. I know noise level increases exponentionally but even some of the loud single cars on here i swear i read somewhere had really high noise readings but i still cant see how theyd be louder than 110dB limited GT cars....maybe im just being a geek Racing cars and bikes noise limits are normally tested at a certain RPM but when racing they are much louder than the limits. HTH Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 Racing cars and bikes noise limits are normally tested at a certain RPM but when racing they are much louder than the limits. HTH Cheers that may explain it....still anyone have the noise outputs? Quote Link to comment Share on other sites More sharing options...
lockys96 Posted September 2, 2006 Share Posted September 2, 2006 tt with cat back superdragger. 89db Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 tt with cat back superdragger. 89db Cheers matey. Anyone else? (would be nice to even build a small register for comparison for those wanting loud/quiet exhausts & combos etc) Quote Link to comment Share on other sites More sharing options...
Gazboy Posted September 2, 2006 Share Posted September 2, 2006 Double decatted J-spec with stock cat-back- 85db iirc. Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 1) tt with cat back superdragger. 89db 2) tt decat J-spec with stock cat-back- 85db 3) just add your details above (tt/na, cats/decat, stock/aftermarket exhaust, db) Quote Link to comment Share on other sites More sharing options...
Darren Posted September 2, 2006 Share Posted September 2, 2006 tt with cat back superdragger. 89db tt decat J-spec with stock cat-back- 85db At tickover? or what RPM? Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 tt with cat back superdragger. 89db tt decat J-spec with stock cat-back- 85db At tickover? or what RPM? good point Quote Link to comment Share on other sites More sharing options...
SarahJon Posted September 2, 2006 Share Posted September 2, 2006 I'd be interested to see the results of this. We've got a cat back RSR on an NA and it's ridiculously loud!! Of course Jon thinks it's the best thing since sliced bread but with it being my daily driver it can get a bit much, especially at 3000 revs! Quote Link to comment Share on other sites More sharing options...
Gazboy Posted September 2, 2006 Share Posted September 2, 2006 Mine was at 3500. Quote Link to comment Share on other sites More sharing options...
Darren Posted September 2, 2006 Share Posted September 2, 2006 Mine was at 3500. Do it again @ WOT!!! Quote Link to comment Share on other sites More sharing options...
secondjump Posted September 2, 2006 Share Posted September 2, 2006 Single with rsr - got black flagged at Brunters after marshals recorded me half a mile away as I came down the long straight at a level of 107db:D Quote Link to comment Share on other sites More sharing options...
JamieP Posted September 2, 2006 Share Posted September 2, 2006 I'd take a wild guess as 1) being in the mid-high nineties and 2) being well over 100db. JamieP's failed 97db, but TerryS's was really really close to 97db (Brunters limit) iirc. I'd have though a single with a screamer would have far more problems with a drive by test than a static. Terry had a bung in his boostlogic;) I didnt have one and mine made 104db at 4000rpm static. Quote Link to comment Share on other sites More sharing options...
Faye Posted September 2, 2006 Share Posted September 2, 2006 Amateurs Mr Harwood has measured the lovely Max at 116dB Fully decatted Nurspec Quote Link to comment Share on other sites More sharing options...
kosmic Posted September 2, 2006 Author Share Posted September 2, 2006 Amateurs Mr Harwood has measured the lovely Max at 116dB Fully decatted Nurspec Sorry is that a tt or na? Quote Link to comment Share on other sites More sharing options...
Pig Posted September 2, 2006 Share Posted September 2, 2006 single Quote Link to comment Share on other sites More sharing options...
Steve Posted September 2, 2006 Share Posted September 2, 2006 So mine will loud then when i get the single fitted. BL T67 with 4" DP/MP to a BL 4" Exhaust. Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted September 2, 2006 Share Posted September 2, 2006 Sorry is that a tt or na? Max is an NA. and 116db is obscene! Quote Link to comment Share on other sites More sharing options...
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