to those who run externally venting wastegates..

[flygt4]

i think it may have been mentioned in another thread, but i'll repeat it anyway.
I had some work done at a local workshop and got to chatting to the mechanic. i mentioned i have been meaning to get my wastegate plumbed into the exhaust, and he told me that there have been pictures/descriptions circulated to most if not all wof issuers regarding the illegality of wastegates venting straight to atmosphere. they show how you can't and can't have them plumbed i guess and where they are alowed to vent to etc.
the guy i was talking to didnt seem to bothered by the idea, but had 2 cars in the workshop that had required new wof's/had failed elsewhere for the same reason.
just a note that if you are considering going down that road, that the powers that be appear to be making an issue of it. if they are circulating info to wof issuers then chance are they are making officers aware and its probly easier to get it sorted before you end up greenstickered.

all for the better good i say too.

[rollaholic]

we do wofs where i work, havent heard a peep.

[fangsport]

it has been in the pipeline for 12months, and MSNZ scrutineers have been actively culling them for a similar period.

they are purely for w@nk factor anyway, as there are ways of plumbing them to still have the gain.

[Guss]

as noted in other topics i have external on the mr2 which points out the top of engine bay.
To get it back into the exhaust it would have to loop 180° go over the top mount intercooler and around an engine mount before back into exhaust, really not do-able.

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)

like sergie has pointed out in past a coke can sized resonator on the wastegate would fulfill these requirements.

[IH8TEC]

well i've seen the flyer and it clearly states it's not allowed, pic showed what looked like an evo with the pipe coming straight down to the ground. saying that is NOT allowed. maybe should try get a copy of it.

[method]

People will always have gates that vent, its quite hard to see if they do or they dont unless you hear them.

Mine vents to atmos next to the gear box.

Was going to get it plumbed in but its too much of a hassle. Need to get another flexi, my 38mm one is too long. Need a short 40mm one. So as a result i've just left it dumping. Its good to hear that is opening up too. I dont have a boost gauge either so its nice to hear it and be sure its open.

[fangsport]

like sergie has pointed out in past a coke can sized resonator on the wastegate would fulfill these requirements.

in most cases, it isn't the noise that is the issue. as it is part of the exhaust, then it must exit the vehicle at least behind the driver. essentially, a vented wastegate is an exhaust leak and therefore must be repaired as such.

[fangsport]

People will always have gates that vent, its quite hard to see if they do or they dont unless you hear them.

a WOf inspector that knows anything about cars will know by inspecting the piping whether or not it vents, as the majority of cars with them are EAST_WEST mounted engines, and the piping is usually done quite obviously.

[method]

Oh would be real easy to spot on a hoist. But on the ground, if a officer pulls you up or what ever it could be quite hard to spot.

A lot of car enthusiasts have friends that work at garages and issue wofs.
I want to make sure my car is safe. Suspention, brakes, wheel bearings, structural rust etc.

I cant see the wastegate being any worse that sitting in traffic every day, driving around parking buildings etc.

The problem i can see is not being able to enter motorsport events because of it

[samlloyd]

I dont really see them as being harmfull.

Sure having exhaust gas leaking in front of the firewall can get into the cabin, but how often are you driving at full boost? Wouldnt be for more then 1minute. Stopping in a traffic jam with a car infront of you would be more dangerous, or beside a big truck with its exhaust dumping straight into your window because youve lowered your car to that height!

And in an mr2, that would be perfectly legal by the sounds of things to have some sort of muffler on the screamer, since its behind the last opening window anyway.

[deaf_rattle]

im all for it.
people that drive so their screamer pipes can be heard in carparks are dicks.

[Bazda]

I have 2 external pipes, it would be insane to try plumb mine back in as I would have to go under the cross member to get it into the exhaust :S, then when I go over speed bumps I'll squash the pipes lol.

So i just left mine as my dad does wofs hahaha. + I dont gate it around the street like a nutter.

[narlystarly]

On another note, I saw an evo 3 with the screamer pipe routed all the way to back the rear of the car where it sat alongside his muffler. Would that still classify as being legal? Is the issue with the noise or is it still the age old not having an exhaust exiting foward of rear most door etc?

[fangsport]

Oh would be real easy to spot on a hoist. But on the ground, if a officer pulls you up or what ever it could be quite hard to spot.

it might be hard to spot, but officers would becoming aware of what to look for.

A lot of car enthusiasts have friends that work at garages and issue wofs.
I want to make sure my car is safe. Suspention, brakes, wheel bearings, structural rust etc.

im sure that when push comes to shove,not giving your mates illegal WOF's will be more beneficial than having your WOF issuing authority removed and being fined heavily. a real mate wouldn't take a car to another mate for a 'soft' WOF if he knew the consequences.

[Paulio]

maybe this is a good time to ask, someone mentioned a while ago that it is legal to vent the w/g in front of the drivers wheel, out the side of the car..?

[barryogen]

On another note, I saw an evo 3 with the screamer pipe routed all the way to back the rear of the car where it sat alongside his muffler.

Is the issue with the noise or is it exhaust exiting foward of rear most door etc?

As long as it is muffled, it should be legal.
This is probably the most ideal, legal way, while still keeping the most performance(not introducing turbulance etc).

but also probably dearest way to do it.

cost to performance, I would think that re-joining the main exhaust just after the cat is probably the most ideal for performance/cost, it means the wastegate has a good low pressure environment to dump to, but still keeps it quiet and legal.

[slighty_sykotic]

maybe this is a good time to ask, someone mentioned a while ago that it is legal to vent the w/g in front of the drivers wheel, out the side of the car..?

Nope its not legal.

It has to be behind the last door etc, and out the side/back of the car.



And whoever said that a wastegate venting only causes fumes, its also caused quite a few fires, i know of two cars that caught fire because of a wastegate venting flames.

[method]

im all for it.
people that drive so their screamer pipes can be heard in carparks are dicks.

Anyone who boosts through carparks are dicks, screamer or no screamer

[cat007]

im all for it.
people that drive so their screamer pipes can be heard in carparks are dicks.

Anyone who boosts through carparks are dicks, screamer or no screamer

Exactly - deaf, you're just being petty now

[cat007]

I dont really see them as being harmfull.

Sure having exhaust gas leaking in front of the firewall can get into the cabin, but how often are you driving at full boost? Wouldnt be for more then 1minute. Stopping in a traffic jam with a car infront of you would be more dangerous, or beside a big truck with its exhaust dumping straight into your window because youve lowered your car to that height!

And in an mr2, that would be perfectly legal by the sounds of things to have some sort of muffler on the screamer, since its behind the last opening window anyway.

It's not harmful at all. They are only making it (or should I say, have made it) illegal because of the noise but its easier for them to ban it on the grounds that it's "unsafe". Having a screamer venting in front of the firewall is NOT unsafe as far as exhaust gases go. Maybe if you're on boost for 5 minutes, sure, it could be harmful. But I VERY much doubt ANYONE would be on full boost for that amount of time!
Correct me if I'm wrong - but take a look at Willie White's funny car for example.....



I'm pretty bloody sure his car would be venting more dangerous gases in 6 seconds than any other road car's screamer would in a week.

It f's me off - old people and Mr po-po need to get over themselves. Old people: go sip some tea, Mr po-po: go arrest a rapist or a murderer and stop f'ing with things you don't understand