neill54 Posted July 17, 2009 Posted July 17, 2009 looking for ideas to reduce my emissions as it failed the mot today on this and the back box being too loud going to service the car as it could do with it anyway but just incase the uy in the garage was trying to sell me some additive stuff so what do you lot use? help! neil p.s i really need a loan of a back box with a 3" flanged end!!!!!1
scouk Posted July 17, 2009 Posted July 17, 2009 Whats your current exhaust configuration? I'm running with just the downpipe cat in place with PPP backbox (newage WRX) and on MOT emissions it's slap bang in the middle of the tolerance.. However it will fail if theres a bad join or a small hole anywhere..!!
neill54 Posted July 17, 2009 Author Posted July 17, 2009 2 1/2" decat downpipe, 3" middle section with 2 small silencer things then a sort of manipulated japanese 5" back box all joined properly neil
p1ggm Posted July 17, 2009 Posted July 17, 2009 what did it fail on? was it lambda, CO or hc? or all 3
scouk Posted July 17, 2009 Posted July 17, 2009 2 1/2" decat downpipe, 3" middle section with 2 small silencer things then a sort of manipulated japanese 5" back box all joined properly neil Your going to need a catalytic converter in the somewhere (even a sports cat) to get the emissions down, additive stuff wont drop your emissions much unless you have a groggy engine... And yeah 5" backbox probably is a bit much for the noise levels
neill54 Posted July 17, 2009 Author Posted July 17, 2009 car passed the emissions with this set up last year! neil
scouk Posted July 17, 2009 Posted July 17, 2009 car passed the emissions with this set up last year! D'oh! Just out of interest, do you still have the results from last years test? Interested to see what the emissions were then..
neill54 Posted July 17, 2009 Author Posted July 17, 2009 thats what ive just been looking for and cant find it going to get under the car and check for holes and leaks etc neil
dodds Posted July 17, 2009 Posted July 17, 2009 ask to see the noise measuring device and the calibration certificate that goes with it, i doubt they'll have one and it'll be the MOT testers opinion. i was told my car was going to fail its MOT as it was too loud, this was before he'd put it on the ramp, i told him not to start the test and i'll go elsewhere, it sailed through.
scoobzie Posted July 17, 2009 Posted July 17, 2009 take the car to sw motorsprt and get steve to mot the car your mot tester just sounds like a tit to me on my last classic i had a full blitz nur spec r no cat and believe me that was mega loud and nothing was ever said about it being loud as for emmisions i have a standard center section with cat you can have for free if need be
neill54 Posted July 17, 2009 Author Posted July 17, 2009 cheers guys but at the end of the day i could do with a newer quiter exhaust as it is way to loud for the wife and kids etc we end up going places in my wifes car cause of the noise! but i love it! think ive got a back box sorted just the emissions to sort out and scoobzie i might take you up on that if it doesnt pass next time neil
terzo neil Posted July 17, 2009 Posted July 17, 2009 got a 3 inch piped back box, jasma box, big back box with 4 inch tail
neill54 Posted July 17, 2009 Author Posted July 17, 2009 (edited) for sale? neil Edited July 17, 2009 by neill54
neill54 Posted July 17, 2009 Author Posted July 17, 2009 (edited) anymore details ? price ? location? condition? please neil Edited July 17, 2009 by neill54
terzo neil Posted July 17, 2009 Posted July 17, 2009 5 mins and post a piccy let me know what you think
terzo neil Posted July 17, 2009 Posted July 17, 2009 pictures of back box, currently in lock up at mothers bit, can be picked up and delivered as thro your way next week, looking for 60 notes
neill54 Posted July 17, 2009 Author Posted July 17, 2009 cheers ill leave it just now mate going to go for a new one! neil
billyboy Posted July 17, 2009 Posted July 17, 2009 Arent some mot stations just a joke.A mk5 golf r32 makes about the same level of noise straight out the box.Are they gonna fail them for too much noise,or a lambo or a ferrari?I doubt it.
terzo neil Posted July 17, 2009 Posted July 17, 2009 never had a problem with noise for any mot mot station next door
scouk Posted July 17, 2009 Posted July 17, 2009 Arent some mot stations just a joke. Simple answer yes! the MOT station I use will fail my car for having a sunstrip.. Yet they know full well I now remove it just before I take it for the MOT and have one fitted again within an hour after! Yet the one time they said not to worry about it, they failed the car for it! To say I was a wee bit pissed off that year is putting it mildly.. Strictly speaking it is a MOT fail but FFS! I know someone with a suntrip that covers a lot more of the wiper sweep than mine yet his car sails through at the same MOT station!! I used to think MOT stations where there to make sure cars are maintained and are roadworthy. Now I just think they are out to piss off people with whatever reason they can find [/rant mode off]
leitchy Posted July 17, 2009 Posted July 17, 2009 there is no noise limit what a pice o poop and if there is a limit what is it cos the lodall i drive at work is 109 decibels speak to grant or andy at A.W.D in perth he sorted me bro out way advice on noise dont muffle the burrble let it be free
badbaz Posted July 17, 2009 Posted July 17, 2009 I own an MOT station, I also am an NT and a Scooby owner with sunstrips, small number plates, no cats and loud loud exhaust. Firstly, you'll need a cat to pass the test, that's the bottom line. The exhaust must emit noise to the same level as a standard system on same model. There are no measuring devices and it is at the testers discretion to determine what is normal, clearly yours is not. We are not here to piss you off, we're here to follow a set of rules laid down by the powers that be. The test is ludicrously poor in some areas and good in others. As an owner I have invested between 50 and a 100k to build to suit and install and operate a test station. If we don't test to the rules we can easily be removed from testing, bang goes the investment and there is NO way back. It's well known as stated above that stuff goes on/off for test and straight after you can put it back how it was. The test is appropriate on the day, while the car's in the bay and still on our premises (unless we're putting a car back to the way it was pre test which would have caused it to fail) and half an hour later it can be altered in so many ways (exclude corrosion from that). I see it from both sides. If your car isn't to MOT standard then either make it right then change it back, or if you are so inclined get yourself an MOT from a pub, save the time to change. One thing - many, many cars, prob not so many Scoobs I presume because of the reasons we drive these cars, only ever get looked at once a year at test, never see a service, so see us as weeding out the dangerous stuff and not someone who's out to pick on you cause your car doesn't toe the line. Rant over. Oh, and all MOT stations should always come to the same result, the rule book is clear, experience is where the differences occur.
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