removing cat convoter

[fx gt]

hey im wondering how loud would my 4age be if i removed my cat convertor?is it recomended to remove it or not

[Rick]

It would increase noise but nothing dramatically, leave it in, its in there for a reason KEEP NEW ZEALAND CLEAN!!!

[fx gt]

ok,any otha opinions from not such a new poster?

[Rick]

Just because its says "NEW POSTER" doesnt mean jack. Just because Iam not on here every 5mins posting crap doesnt mean I know nothing. What more do you want to know? If you are after more power get a larger catalytic converter from a larger capacity vehicle or a performance cat, if you want noise replace mufflers with free flowing ones. Just remember its only a matter of time and certain vehicles will require working catalytic converters for WOF

Here some info for you:

A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds.

The three harmful compounds are:

* Hydrocarbons (in the form of unburned fuel)
* Carbon monoxide (formed by the combustion of fuel)
* Nitrogen oxides (created when the heat in the engine forces nitrogen in the air to combine with oxygen)

Carbon monoxide is a poison for any air-breathing animal. Nitrogen oxides lead to smog and acid rain, and hydrocarbons produce smog.

[B_giB]

i pulled the cat out in my car along with the resonator right behind it (AE101 GT APEX) and it sounds like a chainsaw, but i did notice a little differnce in power, but increase in rasp is terrible

[fx gt]

wat do u mean by "rasp"

[B_giB]

the horrible tinny sound 20 valves are renound to make

[fx gt]

oh i gots a 1.6 so it may not be as bad

[B_giB]

umm... so are 20 valves,

my AE86 used to rasp a bit and that was blue top 4AGE

[fx gt]

oh tru,maby ill just leave it in,but i do like the sound when the car engine pops-kinda like a back fire but not as gay

[B_giB]

just get full exhaust done will solve all problems

[sergei]

Most of the CAT converters are useless in NZ, because they life span is a few years depends on how clean fuel is, what condition engine is, if the car is running right etc.. If car consumes oil and running rich there is no way the cat will run for long..
Basically the average age of the vehicles in NZ is too old to have a working cat converter..
So if it is stuffed just take it out and put a resonator in, when the pollution law comes in chuck a new one in... Anyway it is to late to save the earth and NZ from polution, this had to be started 100 years ago, not now...it is just like a fart tax - ridiculous

[Xyrath 86]

The rasp from a bluetop 16v in an AE86 is sexual.

[B_giB]

yea, they can get away with the rasp...

ahh, i want another AE86 i think

[matt dunn]

i pulled the cat out in my car along with the resonator right behind it (AE101 GT APEX) and it sounds like a chainsaw, but i did notice a little differnce in power, but increase in rasp is terrible

Probably due to the resonator gone rather than the cat.

And yes most of the cat's inn NZ vehicles are so old and stuffed that they do not work properly now anyway.
Go and stand behind a new car with and efficient cat that is up to temp and you will smell the cat working.

On my 20V i unbolted the cat and removed the insides, and put the box back in. Wait for a couple of weeks for it to carbon up and bit and it takes the rasp away.

Matt

[skoty]

A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds.

The three harmful compounds are:

* Hydrocarbons (in the form of unburned fuel)
* Carbon monoxide (formed by the combustion of fuel)
* Nitrogen oxides (created when the heat in the engine forces nitrogen in the air to combine with oxygen)

Carbon monoxide is a poison for any air-breathing animal. Nitrogen oxides lead to smog and acid rain, and hydrocarbons produce smog.

lol, I was just gunna talk about the technical side of things Funny thing is Diesel engines are a lot kinder on the environment, Oxides of Nitrogen (NOx) is the only bad one with diesels as they run around 22:1 comp ratios which obviously creates a lot of heat!

[pervert]

KEEP NEW ZEALAND CLEAN!!!

God damn hippies.

[Adamal]

I've been told by a few clients (Workshops that do WOF's) that a Catalytic converter is soon to become a requirement for a Warrant of Fitness.

[Mr Revhead]

thats correct

[Caveman]

And don't think you can get away with gutting it a putting it back on. They actually take a reading as to your emmisions.