Jump to content

Loud Exhaust


pobiom

Recommended Posts

Posted

woohoo, i've been asked to go to the test centre as someone (i know hwo) has complained about the noise of my car. Lucky i have a tasty blitz bung which gets me a nice 94db, nicely under the legal 101bd requirement. So i'll go up to amuse them.

Have any of you guys had any trouble like this before ?

Posted

Hi M8 , I have had many Rally cars go up there and all of them have failed , If they fined the smallist thing wrong they will have you bud......I had a 205 1.9 GTI with a zorst that was putting out 125db..face-icon-small-shocked.gif and I had a bung in it , they found it and then failed it ...TO$$ERS...face-icon-small-mad.gifface-icon-small-mad.gifface-icon-small-mad.gif It is one of them Isle of Man things again....

Posted

I HATE people like that!!!! face-icon-small-disgusted.gif

When I had the '02 STi, the people in my street were cursing me cos I had the Blitz Nur Spec R with the baffle fitted. face-icon-small-sad.gif

Funnily enough, no one complains about the bloke in the street with the Bike with the race cans fitted.

Funny that, aint it.

Posted

<< I HATE people like that!!!! face-icon-small-disgusted.gifFunnily enough, no one complains about the bloke in the street with the Bike with the race cans fitted.

Funny that, aint it. >>

This is very true Grant....face-icon-small-disgusted.gif

Posted

i brought my car over from a uk seller, so i had it go through the test last september with the blitz nur spec R on with the bung in. So i will just put the bung back in and hope for the same score if not, i have my old sti exhaust system which makes NO noise and i will swap them for a day or two.

Posted

<<

<< I HATE people like that!!!! face-icon-small-disgusted.gifFunnily enough, no one complains about the bloke in the street with the Bike with the race cans fitted.

Funny that, aint it. >>

This is very true Grant....face-icon-small-disgusted.gif >>

It's a different noise. I used to wake people up with my old scooby all the time but it wasn't as loud as my bike. I don't think it's the noise, but the resonance. It shakes people out of bedface-icon-small-tongue.gif

Posted

Ba$tards, we'll be getting nicked for farting to loud soon!face-icon-small-blush.gifface-icon-small-confused.gif

But I have to admit the Blitz can be bloody loud with the bung out on a classic.

But this can also vary from car to car as Nick & I proved just before I sold it.

I got mine after listening to Grants on his bugeye, so its all your fault.face-icon-small-wink.gif lol

Posted

Amazed I've never been pulled for the exhaust on mine as it's straight through 3" from the turbo back and I've not really heard any louder ones, hence why I want to get that apexi thing for it! face-icon-small-blush.gif

Posted

well i have never been pulled either, this is someone complaining in the street my girlfriend lives in, as when i go to leave at 10/11 at night, i don't think it goes down too well.

Oh well, i have now got the bung back in and i'm getting it tested on wedneday lunch time, so i'll let you guys know.

my only worry is i had this setup last september and i got 94db but since i have added an apexi dual filter induction kit, so me it has made no noise difference from the green filter i had before, but lets hope it hasn't.

Posted

<< Amazed I've never been pulled for the exhaust on mine as it's straight through 3" from the turbo back and I've not really heard any louder ones, hence why I want to get that apexi thing for it! face-icon-small-blush.gif >>

I was looking after a friends house, and heard Jim's car. The noise increased for well over 1 minute until I saw him drive past, then I could still hear the noise for another minute. face-icon-small-smile.gif

Is there an easy DIY way to check how loud your exhaust is, I am current running it standard and would like to see what the increase is when I fit the decat, centre section and back box.

Posted

<<

I was looking after a friends house, and heard Jim's car. The noise increased for well over 1 minute until I saw him drive past, then I could still hear the noise for another minute. face-icon-small-smile.gif >>

face-icon-small-blush.gif

<<

Is there an easy DIY way to check how loud your exhaust is, I am current running it standard and would like to see what the increase is when I fit the decat, centre section and back box. >>

You can buy dB meters for about 30 quid Andy. THink they measure 1 metre from tailpipe so induction noise shouldn't matter.

Posted

Cool, I take it the bung has fallen out now then?face-icon-small-wink.gif

Was it the usual trackday test? i.e. 1metre from exhuast at 45degree then rev to 4k.

Posted

yeah he showed me the batteries in the meter were ok.

then stood about 1 metre from the exhaust pipe and asked me to rev it to 5000rpm and keep it there for approx 10/15 seconds.

Posted

I've got an Apexi DECS ECV coming from japan now so hopefully in a few weeks I'll be able to choose between loud & quiet at the touch of a button or even automatically depending on RPM. :D

Posted

I've got an Apexi DECS ECV coming from japan now so hopefully in a few weeks I'll be able to choose between loud & quiet at the touch of a button or even automatically depending on RPM. :D

I was going to say what about back pressure when partially closed in respect of the ecu map, but if it adjusts with rpm I assume closed round town under 3/4k then open out of town on boost over 3/4k.[:(] very nice Jim.

Posted

Well, it should be good if it does what it says on the tin dude.  Will have to get someone to weld it into the centre pipe though I presume.

Posted

yeah he showed me the batteries in the meter were ok.

then stood about 1 metre from the exhaust pipe and asked me to rev it to 5000rpm and keep it there for approx 10/15 seconds.

 

pobiom:  I take it your exhaust is straight through with no CAT, if so did they pick up on it at all?

Posted

yeah he showed me the batteries in the meter were ok.

then stood about 1 metre from the exhaust pipe and asked me to rev it to 5000rpm and keep it there for approx 10/15 seconds.

 

pobiom:  I take it your exhaust is straight through with no CAT, if so did they pick up on it at all?

Posted

No, i just have the Blitz Nur Spec R system on, which is a 3" system.  It is only the centre section and backbox, not the downpipe, so i still have a cat on my down pipe but all others are removed with the system

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...