Exhaust Noise Regs

[supragal]

Hey, what are the laws around how loud your exhaust is allowed to be over here?

Also, I saw those :censor: whistler things at JAE on sale!

[VTRick]

sod the law... lol get whatever zorst you want love.

and those whistler things are :censor: , as some of you know i bought some off eBay the other day. didt expect alot but ***** there ****, worth a laugh though, lol. we was sodding about with them on my yaris, bst noise we could get was a sort or "waste noise" but about 3 octaves too high. lol. ill stick some in your supra if u like

OK GETTING BORED OF EDITING POSTS NOW......

[supragal]

questions not really for me- mates just got an RX-7 and apparently the exhaust thats on it is too loud for UK use- I wasn't aware of any law like that...was wondering what the score was....

If you put those things near my car I'll cut ya legs off and put you in a river, geddit? :P

[VTRick]

you'd do that to lil ol me??

and i thought you loved me, lol

[supragal]

dont do anything bad to my car, friends, family, horse, stereo and you're safe :P

[VTRick]

i dont like horses, in fact i hate them. so i cant be held to that, but everyhing els... ok.

:P

[mellow_yellow]

there is a restriction in the uk for the db a zorst can make, but i cant remenber what it is! so really, it was a bit pointless for me to add this post... im just bored thats all...

[supragal]

there is a restriction in the uk for the db a zorst can make, but i cant remenber what it is! so really, it was a bit pointless for me to add this post... im just bored thats all...

So I guess me replying this late doesn't relieve your boredom either lol. Sorry, been busy graduating tee hee. Thanks though!! At least I know there IS one for sure now

VTRick. Watch it, I know where you live.

[nws25]

I think its around 98 Db but they'll have a hard time to do you for it, i run a straight thru' zorst, no silencers at all measured at 115 Db and it goes through MOT's fine, your mate might have a problem if its got to be SVA'd but then he can change it afterwards.

[supragal]

cheers nws25... yeah it has to be SVA'd :(

any luck with that other stuff??

[VTRick]

VTRick. Watch it, I know where you live.

is that a threat or promise?

[supragal]

Both? :P

[VTRick]

weyhey, see you at about 6:30 then yeah?

[dosenöffner]

98db seems a little high. Normally 87-90db is a more realistic figure as 98db is higher than the health and safety regs. Normally measured with a car 1.5 - 2 metres from a wall with the db meter 1.5 metres in the air as far as I know.

What car did you manage to get 115db from? Sceptical. A jet aircraft on take off is 120db. I managed 118db from a WRX Type RA but that was a straight through pipe with no mufflers and it was only attainalbe on spikes as a result of running antilag.

To get 115db from an NA small capacity engine is doubtful. How did you measuere it on the move? All I can figure is your exhaust is about 2 inches long from the manifold.

[supragal]

weyhey, see you at about 6:30 then yeah?

ha ha

[Monster-Mat]

2 inches.....would be perfect if turbocharged

The Monster has a temp exhaust fitted at the moment which is about 2 foot long an exits behind the front wheel......and thats not even 115 db

[TheNissanMan]

I've seen 110Db on MR2 Turbo's with the Blitz nurSpec but as Geln says 115Db does seem a tad high....

98 doesn't seem unreasonable to me as mine has recorded readings of 98Db a couple of times at Combe at 4.5k with a meter 1.5m, im only an NA with induction, the 17DB needed to get upto 115 is an incredible amount.

[nws25]

98db seems a little high. Normally 87-90db is a more realistic figure as 98db is higher than the health and safety regs. Normally measured with a car 1.5 - 2 metres from a wall with the db meter 1.5 metres in the air as far as I know.

What car did you manage to get 115db from? Sceptical. A jet aircraft on take off is 120db. I managed 118db from a WRX Type RA but that was a straight through pipe with no mufflers and it was only attainalbe on spikes as a result of running antilag.

To get 115db from an NA small capacity engine is doubtful. How did you measuere it on the move? All I can figure is your exhaust is about 2 inches long from the manifold.

Small capacity N/A???? Not me matey.

It was measured from a 1m distance at 3000 rpm at TSC2 last year, i didnt do it myself and the meter did look a bit old.

My exhaust is 2.5" bore from turbo, which then goes straight underneath the car which is the connected to a 1000m long 4" pipe to look like a rear box.

Supragal....sorry hun ill chase it up.