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View Full Version : deibel level of exhauts system



Frankie
04-12-2009, 09:54 AM
Hi guys
just wondering what is the way that exhaust shops test your exhauts sytem for the decibel reading, is it at the back of the car on 45degree angel with nothing behind and rev the car to half way of redline or is it different??, because i got a test done on my car and i dont believe it is correct just think he trying to rip me off. does anyone know the proper way of how they test your exhaust system

cheers

Riced_Civic
04-12-2009, 11:15 AM
u need to go to a certified tester not all exhaust shops can do it

Frankie
04-12-2009, 11:28 AM
u need to go to a certified tester not all exhaust shops can do it

which placers are certified???
i went to hitech mufflers

Riced_Civic
04-12-2009, 12:34 PM
its usually listed on the RTA web sites

i think its done 50cm away on a 45* angle and rev at 3500/4500 rpm cant remember which rpm

WATAJK
04-12-2009, 02:27 PM
^^ Each car different RPM

Believe me if u got a letter in the mail
You will fail the test...
Change ur exhaust over and save yourself a $40 dollar test the first time..
I got done with my daily (laser), i thought bullshit...
4 inch cannon, 4800 RPM said other wise lol...
104 at rev
115 at the blow off

Failed so hard...
90DB is legal limit for cars afta 1980 sumfin lol

^^ Thats victoria btw, not sure if its standard aust wide

V73C
04-12-2009, 03:04 PM
As above.

Frankie
04-12-2009, 06:30 PM
^^ Each car different RPM

Believe me if u got a letter in the mail
You will fail the test...
Change ur exhaust over and save yourself a $40 dollar test the first time..
I got done with my daily (laser), i thought bullshit...
4 inch cannon, 4800 RPM said other wise lol...
104 at rev
115 at the blow off

Failed so hard...
90DB is legal limit for cars afta 1980 sumfin lol

^^ Thats victoria btw, not sure if its standard aust wide

i just wanted to have the certificate so if i was pulled ovre i wouldnt get doen for it know what i mean.

geeang
04-12-2009, 06:49 PM
i just wanted to have the certificate so if i was pulled ovre i wouldnt get doen for it know what i mean.

Having a certificate is going to do squat, if a cop wants to defect you they'll just defect you.

They can just say that you need to get emissions tested and you'll be done for.

blabla
04-12-2009, 06:57 PM
i just wanted to have the certificate so if i was pulled ovre i wouldnt get doen for it know what i mean.

hey mate i know a guy that will do it for you properley he does all the db testing at eastern creek.

Frankie
04-12-2009, 07:10 PM
hey mate i know a guy that will do it for you properley he does all the db testing at eastern creek.

yeh its a bit out fo my way man sorry

blabla
05-12-2009, 07:19 PM
yeh its a bit out fo my way man sorry

srsly mate if u want things done properly sometime u got to make the effort and go out ur ways the bloks on hoxton park rd western tyre.

Frankie
05-12-2009, 11:14 PM
srsly mate if u want things done properly sometime u got to make the effort and go out ur ways the bloks on hoxton park rd western tyre.

yeh thats true,will hold off until i really need it done what the place called

WATAJK
06-12-2009, 11:52 AM
i just wanted to have the certificate so if i was pulled ovre i wouldnt get doen for it know what i mean.

they wont care lol
He will rip it up in your face and force you to get another test done

blabla
06-12-2009, 03:40 PM
yeh thats true,will hold off until i really need it done what the place called

Western Tyre Wheel & Exhaust
350-356 Hoxton Park Rd, Prestons NSW

Limbo
06-12-2009, 05:08 PM
unless it was done by a certified engineer, its not gonna mean crap.
Even then they can still tell you that they want it checked again cos they will say they think you changed the muffler or soemthing.

Frankie
06-12-2009, 06:51 PM
just have to be carefull

WATAJK
06-12-2009, 07:41 PM
unless it was done by a certified engineer, its not gonna mean crap.
Even then they can still tell you that they want it checked again cos they will say they think you changed the muffler or soemthing.

lol they rip those reports up aswell
make sure u have copies lol