to those who run externally venting wastegates..

[Dell'Orto]

Busses generally dont go thrashing around suburbs at 2 or 3am...

So the issue is that these "clowns" with external's venting to amtosphere is that they are blasting around at 2 or 3am? What if they didn't - what if they only blasted around during the day - you're saying that would be ok then?

Does anyone work in the center of Auckland? Ever tried to have a conversation while walking along K road or Queen st? All is well and fine until, (wait for it), a bus drives past.....

No, but the point you're missing, is that for years dipsh*ts have done this, and pissed off enough people to go and complain to their local MP for the government to do something about it.
Perhaps if it wasnt for the small penised prats out there making heaps of noise when Joe Average and family are trying to sleep, then it wouldn't have come about.

[Mr Revhead]

6 pages?

omg


this is the best law change in ages

"screamer pipes" are just plan silly on a road car!
sounds so bad!

[flygt4]

i think we've almost beaten the exhaust law thread

[YeMs]

every 1 brakes the law at sum stage i guess.. its the same as doing a skid at the end of the day. you know the risks, if you get caught thats your fault. there will still be people doing it even tho its illegal. im running an atmo vented wastegate, and yeh its simply for show. but thats what im building my car for.. skids and drags pretty much. however, i wont be driving it round at 3 am on boost waking up the neighbourhood.

it comes down the the driver. just like doing skids, boosting your car is entirely your choice at the time. you made it make the noise, you know the risk. if you get caught you deserve the fine. end of story. theres no "ohh but they are picking on me", or "oh its revenue gathering" its not, your breaking the law so you get the fine.

ill tell you what revenue gathering is.. f**n speed cameras, and speed camera vans haha. and cops hiding behind lamp posts with speed lasers. but same ole story, you broke the law (speeding) you get the fine.

so what the thread is actually about, is.. if you are running an atmo vented wastegate and you get busted by the feds, or failed for a wof, you cant complain. its illegal, get over it.

[Guss]

a) its illegal, no way around that, no way to justify it
b) it doesnt really sevre any purpose unless you're racing

a) topic is 'externally venting wastegates' not 'wastegates venting straight to atmo' There is a big difference AFAIK i.e atmo = illegal, external done right=Legal.

The issue i have is that if there is indeed a sheet going round the WOF shops that just has pictures of an external stating that they are illegal most issuers and Mr Plod will immediately i.d. any externally venting wastegate as illegal.

Nothing has changed in the rules, vent to atmo wastegates and externals ahead of the passenger compartment have always been illegal.

Instead of clarifying the rules they have blanket stated that non plumbed back externals are illegal ?

b) It does serve a purpose particularly where engine bay space and layout make it hard to plumb back. As sergie pointed out if you plumb back in there will be a restriction, if there is not then you exhaust is most probably too loud. I'd rather have a car that is relatively quite 99% of the time and did not boost creep over one which is annoyingly loud all the time.

[fangsport]

Guss, i think you have your wires tangled somewhat. it is legal to have an external gate that is plumbed back in or runs a separate exhaust, but open venting of any wastegate is illegal, and always has been

[flygt4]

"externally venting wastegate" and "wastegate venting to atmosphere" are the exact same thing. ie if its not venting into the exhaust, then it is external , and also to atmosphere.

it is possible to set it up so a wastegate that isnt plumbed through the exhaust or a muffler is legal. its achievable in mid engined cars, but i doubt many people will bother to run an entirely separate 1.5" exhaust system to get their wastegate plumbing to the legal exit points. that also ignoring any noise/annoyance issues created by doing so.
however, I have seen exhaust pics of ferrari F40s, i think they might possibly vent to atmosphere next to the main exhaust piping?

and from what ive been told, the information that is being circulated is correct to the law. it shows a wastegate with a screamer pipe dumping into the engine bay or out the side, and explains the purpose of it and why its not correct etc.

[Guss]

Guss, i think you have your wires tangled somewhat. it is legal to have an external gate that is plumbed back in or runs a separate exhaust, but open venting of any wastegate is illegal, and always has been

Thats the key, but do the WOF guys know this? i quoted the VIRM earlier in the post. So long as there is a reso or muffler on the pipe etc it is an 'exhaust system'

[fangsport]

Guss, i think you have your wires tangled somewhat. it is legal to have an external gate that is plumbed back in or runs a separate exhaust, but open venting of any wastegate is illegal, and always has been

Thats the key, but do the WOF guys know this? i quoted the VIRM earlier in the post. So long as there is a reso or muffler on the pipe etc it is an 'exhaust system'

not necessarily, an exhaust is a means of carrying fumes away from the source, a muffler/silencer is a means of make the system quieter.

[Guss]

Vehicle inspection requirements manual says car must have an exhaust system (exhaust system means a pipe assembly through which the engine exhaust gases pass to the atmosphere and includes some means of sound reduction such as a silencer or resonator)

Quoted straight from the VIRM if you don't have a muffler or reso then its not an exhaust 'system'

[slighty_sykotic]

Vehicle inspection requirements manual says car must have an exhaust system (exhaust system means a pipe assembly through which the engine exhaust gases pass to the atmosphere and includes some means of sound reduction such as a silencer or resonator)

Quoted straight from the VIRM if you don't have a muffler or reso then its not an exhaust 'system'

And it must be to the back of the car, behind the rear most opening.

So unless you are going to run a entire system to the back of the car (ignore mid mounted engines for this point), its going to be illegal no matter how many mufflers you have on it.

[flygt4]

how many people do you know would go to effort of running an entire second exhaust system? especially when theres usually perfect 3" pipe already going to the back of the car

[solitaire]

No, but the point you're missing, is that for years dipsh*ts have done this, and pissed off enough people to go and complain to their local MP for the government to do something about it.
Perhaps if it wasnt for the small penised prats out there making heaps of noise when Joe Average and family are trying to sleep, then it wouldn't have come about.

Amen Brother, you hit the nail on the head... same with exhausts.

[Jdawg]

Vehicle inspection requirements manual says car must have an exhaust system (exhaust system means a pipe assembly through which the engine exhaust gases pass to the atmosphere and includes some means of sound reduction such as a silencer or resonator)

Quoted straight from the VIRM if you don't have a muffler or reso then its not an exhaust 'system'

Yes, it's an exhaust system, and if it doesn't include " some means of sound reduction such as a silencer or resonator" then it is illegal

[cat007]

Is it wrong that I come home, sometimes after 10pm, and my car sits in the drive with the turbo timer going, sometimes up to 2 minutes.....?
There really is no way to avoid that.....yet I bet it would annoy my neighbors more than having someone drive past with their screamer going, for maybe 5 seconds, or less......

Maybe we should all just drive Prius' and be done with it....

[flygt4]

i'd say yes it is wrong.
is it that hard to drive gently for the last 2km home?
because all you're doing leaving it sit for 2 minutes is annoying your neighbours and wasting fuel. driving gently for the last couple of km will do the same job as letting the car idle for 2 minutes.

if my neighbour regularly sat his loud car in his driveway for 2 minutes at 10pm every night , i would be doing something about it pretty quickly.
i have a loud car too, but i consider myself a courteous person (generally ) and don't leave it idling in the middle of the night. i even go so far as to avoid idling it on weekends before midday.

there is an easy way to avoid it. don't do it. same deal with external venting wastegates. don't do that either.

[cat007]

No - I said there is no way to avoid it - and as such - you think it's wrong?
So, I should give myself a 10pm curfew like I'm 16?

Kinda getting off topic here. Being picky I suppose

[RedMist]

Is it wrong that I come home, sometimes after 10pm, and my car sits in the drive with the turbo timer going, sometimes up to 2 minutes.....?
There really is no way to avoid that....

Try this... don't use a turbo timer. Simple fix and it works.

I gather you're turbos are either arent water cooled or you belt the piss out of your car just before stopping it.

[solitaire]

Is it wrong that I come home, sometimes after 10pm, and my car sits in the drive with the turbo timer going, sometimes up to 2 minutes.....?
There really is no way to avoid that....

Try this... don't use a turbo timer. Simple fix and it works.

I gather you're turbos are either arent water cooled or you belt the piss out of your car just before stopping it.

either that or just drive off boost for 2 (or if your overcautious like me - 5) minutes when its late.

[flygt4]

it is slightly off topic, but you seem to be slightly misled on the matter. running a turbotimer really won't make much difference, as has been said, drive gently for the last few km home.

general courteous method for arriving home late in a loud car is as follows:

drive down your street in as high a gear as possible , and if possible roll into your drive in neutral.
if you need to swing your headlights through someones windows to get into your driveway, tip your lights back to park.
park the car and lock up and if possible, use the silent mode on your alarm to avoid chirping loudly.
avoid standing in your driveway talking loudly about "how hot that bird at the bar was" with your mates.

of course some noise is unavoidable, but at least if you try to follow some of the steps above you are likely to have a far happier neighbourhood and your neighbours might extend the same courtesy to you , whether they have barking dogs, young children etc etc