Vehicle noise tests - New rules

**TonyB** · 21st December 2007, 07:22

Originally Posted by AllanB

Easy to blame the boy-racers but there is a shit load of Harleys running around Christchurch with open drag pipes that a f-n loud.

Too true. Not just Harleys either mind you. The B family recently bought a house very close to Tunnel Road- this involved much hand wringing and worry about traffic noise. After being there for a couple of weeks I can say that the loudest vehicles to come past have been motorbikes....boyracers come a distant second and most trucks are way behind in the noise sakes. Its kind of amusing when a cruiser comes past making a huge amount of noise while putting out maybe 70hp if its lucky, and a 500hp truck hauling 40 tonnes comes past and I can barely hear it.

**huck farley** · 21st December 2007, 07:34

Originally Posted by scumdog

Hey Kuch Rafley, if I sent my H-D mufflers up to you would you 'put a fukn great drill up the pipes'?

Cos sure as hell I can't see how it would make one jot of difference on the mufflers MY Harley came with.

Hey doggy that's a pile of bullshit. A stock standard Halrey compressor out of it's crate is as quiet as. Untill the no brainer retards, down syndrome Idiots get them drilled out. HUCK FARLEY!

**scumdog** · 21st December 2007, 08:15

Originally Posted by huck farley

Hey doggy that's a pile of bullshit. A stock standard Halrey compressor out of it's crate is as quiet as. Untill the no brainer retards, down syndrome Idiots get them drilled out. HUCK FARLEY!

On my mufflers there were two steel plugs in each muffler, each about 20mm in diameter and shaped like a frost-plug.

With them in place the bike was as noisy as a Goldwing (when the engine was not running.!)
I used an old .22 barrel to knock them out - no drill needed.

Then it sound ALMOST as noisy as a brand-new GN250

So in the interests of science I 'dismantled' the mufflers by cutting through them just where they taper-down near the exit, I then pulled out what seemed to be about 2.5 tonnes of baffle-tubes and fibreglass wadding etc - man that's a lot of weight to tote around needlessly!!

I then had some tastefull stainless end-caps made, these are held in place by three Allen-head bolts because dumb as I am accused of being I wanted to maybe install baffles if the resulting noise was too much.

So now I have an empty 'can' with caps on the end with a 30mm exit hole

NOW the bike sounds about as loud as Dangerous's Guzzi cans - not an unholy racket.

So, Truck Fiumph to you sir

**Beeza** · 21st December 2007, 11:29

My Beeza 250 with its outrageously high 10:1 compression ratio makes quite a worrying amount of noise on its standard Armoury Road, Birmingham pipe. I really wouldn't mind if it could be quietened a bit, but it would involve losing too many of the not-too-many horses out of my wee little horsepower paddock. So that just won't happen.

Fortunately our local WOF people are appreciative of older sort of machinery and will cut us a little slack --- but not much!

**vifferman** · 21st December 2007, 11:30

Originally Posted by TonyB

I can say that the loudest vehicles ... have been motorbikes....boyracers come a distant second and most trucks are way behind in the noise sakes. Its kind of amusing when a cruiser comes past making a huge amount of noise while putting out maybe 70hp if its lucky, and a 500hp truck hauling 40 tonnes comes past and I can barely hear it.

We can just see the top of the Harbour Bridge from our house - in a direct line it's maybe 2-3 km away. On an average night, the only noise I can hear from it is the occasional HD go over it, and maybe a very, very occasional noisy car.

The loudest vehicle in our neighbourhood is some kinda Harley from a couple of streets up the hill. It must be three times as loud as any of the boyracermobiles a couple of houses up from us (although there's one that's overdue for the ExpandingFoamInTheMufflerInTheDeadOfNight modification).
The drag pipes on the Harley are SO obnoxiously loud I feel like lobbing summat over the wall as he rides past. To put in perspective, there's a DeTomaso Pantera with (stock?) big bore zorsts on it across the road, and it makes the walls rattle when it's running. The difference is, it's a very low rumble, and the owner never goes round and round the block unlike the tard who owns the Harley. He also knows it's loud, so he keeps the revs low so as to not annoy his neighbours. Mr Loud Harley WANTS to be noticed, and he deliberately makes as much noise as he can. D'ya think a lump of cobblestone bouncing off his fake Nazi helmet will let him know that he is being noticed? :spudwhat:

**Mike748** · 21st December 2007, 12:03

There will be some who will consider this as being bad for the bike but ....... Back on the farm we would roll up some chicken wire and shove it up the exhaust to kill the noise when required. Don't leave it in too long or it'll soot up and kill the power big time, but this was quick, easy and effective.

**Pancakes** · 21st December 2007, 14:52

The tone of the exhaust does count for alot too as people have said. Also, the time of day and situation. A nice motor of any type in (almost) any vehicle given some gas will make my head turn with appreciation if I have deleberatly gone to a "car cruise" type area on a Sunday afternoon.

On the other hand, anything loud waking me up at 3 in the morning, including dickeds with totally stock cars killing the engine to do backfires and waking the kids up will get me pissed off!

Even my little bike with the pipe I made has some thud at quite a volume but I don't go 'round at full noise in area's where it won't be liked. Thats the downside of a loud vehicle. Most of the volume can be controlled with the wrist/foot. It's the drivers that make the choice.

You can give a Harley WOT from low revs and make tons of noise without killing yourslf too. An IL4 will be ok till the power hits and you find yourself on your back with the bike bearing down on you. A V8 and you'll be facing the other way. The type of vehicle (not just Harleys) can lend itself to more volume more often too then I guess.

**davereid** · 21st December 2007, 18:31

of course the exhaust in my old jag will pass the test. But wait till I turn the stereo on... but that wont be tested !

**homer** · 21st December 2007, 18:40

I love the panzy racers
Especially when my ford and bike both sound better than theres better than theres fucken better than theres

**huck farley** · 21st December 2007, 21:25

Originally Posted by vifferman

D'ya think a lump of cobblestone bouncing off his fake Nazi helmet will let him know that he is being noticed? :spudwhat:

You line him up, and tell me when and I'll chuck it. Done deal.
I think every suburb over the length and breast of the country has it' own Idiot flying around on a compressor, with pistons trying there best to get out of the drag pipes. (why on earth would you bother)

**huck farley** · 21st December 2007, 21:27

Originally Posted by Mike748

There will be some who will consider this as being bad for the bike but ....... Back on the farm we would roll up some chicken wire and shove it up the exhaust to kill the noise when required. Don't leave it in too long or it'll soot up and kill the power big time, but this was quick, easy and effective.

The riders want it shoving up there arse mate. And hope they do soot up!!!

**Bren** · 21st December 2007, 22:10

hey huck, you are going a long way to make enemies on this site....what a newbie like you stirring up shit!
fuck mate settle down a bit on voicing your opinions until you get some cred!

**scumdog** · 22nd December 2007, 08:16

Originally Posted by South3rn Rid3r

hey huck, you are going a long way to make enemies on this site....what a newbie like you stirring up shit!
fuck mate settle down a bit on voicing your opinions until you get some cred!

Ah, don't worry about 'ol Huck, the 'invisible-to-him' concentric red circles on his back are providing some of us with entertainment....

**Hailwood** · 22nd December 2007, 12:36

I ride a Harley with screamin eagle pipes that i fitted so I could actually hear my bike..I have rideen past many cops and had a wave so i guess the noise level is all good...I do agree that there are some bike riders (some are harleys) that have very very loud pipes that make no nice noise at all..rather an awful scream..it wouldnt worry me in the slightest if these guys had to make their bikes a bit quieter though....

My bike horn i fiited is louder than my pipes though...128db..try to make me take that off my bike!!!!!!!

As to Huck Farley.....merely an individual who doesnt yet have the grasp of the English language with enough skills to make his point wihtout resorting to that type of comment....his comments are mind over matter..i dont mind because his comments dont matter....

Have a good break and please ride with the black round things on the road at all times.......see you out there............