Exhaust problems..

[86-surf]

I'm looking at getting a 3'' exhaust, But im wanting it to exit just befor the rear right wheel am i alloud to do this?.
Pit stop said it had to exit the rear, But ive herd others say that it can exit any where behind the rear doors?

[rangimotors]

Don't quote me but i think it used to be something to do with if your back windows open or not, eg a car (coupe) with opening back windows it would have to be behind the rear wheels, if the windows were sealed it could come out infront of them... ??? something like that
I have also heard it can exit anywhere it likes so long as its after the rear axle..
We need more WOF officers on this site..

Edit. This is posted in site information and help , having problems.. Interesting choice

[86-surf]

Yes we do need more wof officers!

[Armourguard]

Hey Jase, have been told (by my WOF guy) new law coming into effect this year that exhaust cant be louder than factory and if WOF places are unsure they are to send cars etc to Testing Stations for noise level check so you might want to check this out before you fork out for new one then have to change it again

[86-surf]

Ok, somthing ells to look out for,

Thanks

[86-surf]

WHY DO THEY HAVE TO MAKE ALL THESE STupid rules... Boy races still make there cars lowder it sucks!

[doddzee]

Why are you going for a 3"??

2.5" straight through would be heaps.

[turoa]

Hey Jase, have been told (by my WOF guy) new law coming into effect this year that exhaust cant be louder than factory and if WOF places are unsure they are to send cars etc to Testing Stations for noise level check so you might want to check this out before you fork out for new one then have to change it again

The law is it cant be "significantly louder than factory" and has been this way for sometime. They cant exactly enforce this law because a) I doubt they have a reading for some cars like my 1964 land rover and b) my landrover has a toyota v8 in it. They cant exactly have a reading for that now can they

[86-surf]

Why are you going for a 3"??

2.5" straight through would be heaps.

3'' just incase i decide to go for the 7mgte or what ever it is.. for future yano..... Then i wont have to get a complet new exsaust just change the mounting thingy..





That is tru now isn't it tu..
Weird how the law people come up with these grate ideas! isn't it

[86-surf]

Well I talked to a friend of mine, He said it should be alright aslong as the exhaust is behind the doors.
So ill take it into pit stop soon and get them to quote it for free:D

[turoa]

Well I talked to a friend of mine, He said it should be alright aslong as the exhaust is behind the doors.
So ill take it into pit stop soon and get them to quote it for free:D

You have opening back windows and seats yes? if so then its a no no

[86-surf]

The rear window doesn't open at all, And the windows behind the driver don't open they are rusted shut!

[Jezza]

You have opening back windows and seats yes? if so then its a no no

The rear window doesn't open at all, And the windows behind the driver don't open they are rusted shut!

Doesn't matter if they are rusted shut, they're still opening windows. Plus you still have rear seats.

[86-surf]

oh damn.. well i will go and see anyways.

[spanky]

depends on # of doors opening windows and such , on a coupe it is different or a 4 door with welded rear doors ,then your exhaust can exit rearward of the midpoint of your wheel base, have done this on a few cars and they pass a wof sweet, on one ae 86 i made the exhaust comr through the sill on the left hand side and apart from noise has no trouble at wof time plus the flames look cool at night on that one 4agze 18psi 302bhp could be why .
vaughan

[86-surf]

I don't think ahh 2.4 turbo deisel is going blow flames Might be a big puff of black smoke but flames no.


Mum decided she wanted to go to tga to see her dad so couldn't take the truck in to day

[nstg8a]

you can have your exhaust louder than stock, it just has to certed.

i went through this on my old levin, i got a green sticker, because the cop that pulled me over used his (not very) trusty dick smith decibel meter to decide that my levin was around 104 db... the legal limit is 95, dont let people tell yu there is no true limit, there is...

so i got 2 mufflers added, which bought it down to 90db on the trusty pitstop db meter (same brand as the cops one) then had to get an exhaust cert to get rid of the green sticker, so $200 later and a day of testing with an $11000 db meter i had a cert and a new wof (old one was only 2wks old) .

all up, it cost me about $500 to have my car certed with a decent exhaust. and 89' db was still plenty loud enough.

[TJ]

Not trying to cause a stir here, but big bore exhaust does not necessarily mean its good for the engine. I know diesels like to have a bit more free flowing air exchange, but there is a reason (engineering) involved in 2.5 or 3.0 inch exhaust. Some engine do need a bit of back pressure to develop low end torque. Just something to think about.

[86-surf]

Not trying to cause a stir here, but big bore exhaust does not necessarily mean its good for the engine. I know diesels like to have a bit more free flowing air exchange, but there is a reason (engineering) involved in 2.5 or 3.0 inch exhaust. Some engine do need a bit of back pressure to develop low end torque. Just something to think about.

I thought thats what the turbo was for?... i thought that the turbo stopped it from need the back pressure??..

[TJ]

That would be fine as long as both your engines (i.e. what you are putting now and what you would be putting in future) will be turbo. Just giving ideas as sometimes people don't think things through properly and try to save money (which ends up costing more in the long run).

[86-surf]

That would be fine as long as both your engines (i.e. what you are putting now and what you would be putting in future) will be turbo. Just giving ideas as sometimes people don't think things through properly and try to save money (which ends up costing more in the long run).

Im thinking about a 7mgte or somthing along thoes lines...

[rangimotors]

3 inch is getting pretty big, what do you plan on running in terms of mufflers? i would also be thinking that 2.5 would be fine and for your 2lt you'll probably still be using mufflers etc if at some stage you put a performance engine in it you could always cut them out and just run the 2.5 straight through which would be fine

[TJ]

Im thinking about a 7mgte or somthing along thoes lines...

Thats a petrol turbo, so I would question the wisdom in a 3" exhaust to some extent. Yes turbo helps and needs to vent fumes quickly, but I would suggest to do a bit more research first. Also, are you planning on reving your engine at such high rpms constantly? Might be more appropriate for sustained high rpm applications (i.e. racing, etc).

I am becoming more conservative in my approach and like to now think through my brain, rather than the heart.

It takes a lot of hard work to earn the money, but its easy to waste on things not needed.

[86-surf]

Im thinking about a 7mgte or somthing along thoes lines...

Thats a petrol turbo, so I would question the wisdom in a 3" exhaust to some extent. Yes turbo helps and needs to vent fumes quickly, but I would suggest to do a bit more research first. Also, are you planning on reving your engine at such high rpms constantly? Might be more appropriate for sustained high rpm applications (i.e. racing, etc).

I am becoming more conservative in my approach and like to now think through my brain, rather than the heart.

It takes a lot of hard work to earn the money, but its easy to waste on things not needed.

I wont be racing it but it will be used for long trips etc. like towing trailors to welly and auckland and back, And i don't want to over heat it so wen i do the exhaust mod. ill be puting a new temp gauge and thermometer thingy can't member what it called.

[TJ]

I wont be racing it but it will be used for long trips etc. like towing trailors to welly and auckland and back, And i don't want to over heat it so wen i do the exhaust mod. ill be puting a new temp gauge and thermometer thingy can't member what it called.

You would be better off concentrating on making sure that you have an efficient and effective cooling system in a petrol engine, rather than the exhaust (primarily). A 3.0l turbo V6 petrol engine should be happy with a free-flowing straight through 2.5" system. A twitinng and winding exhaust will cause more restrictions. Now if you had a super/turbo charge V8, then thats a different story.

Talk to somebody who is running this engine in this configuration and ask whether overheating is an issue for such an application.

[86-surf]

I wont be racing it but it will be used for long trips etc. like towing trailors to welly and auckland and back, And i don't want to over heat it so wen i do the exhaust mod. ill be puting a new temp gauge and thermometer thingy can't member what it called.

You would be better off concentrating on making sure that you have an efficient and effective cooling system in a petrol engine, rather than the exhaust (primarily). A 3.0l turbo V6 petrol engine should be happy with a free-flowing straight through 2.5" system. A twitinng and winding exhaust will cause more restrictions. Now if you had a super/turbo charge V8, then thats a different story.

Talk to somebody who is running this engine in this configuration and ask whether overheating is an issue for such an application.

There was a thread on here saying that the reason they over heat so often is because The exhaust fumes do not get out fast enouth creating to much heat witch over heats them,
So by puting a thicker exhaust on lets the heat and fumes get out faster creating less heat.
And i don't think i will be doing the swap (engine)for a long time. untill i get a job and am surviving by my self. hahaha

[TJ]

There was a thread on here saying that the reason they over heat so often is because The exhaust fumes do not get out fast enouth creating to much heat witch over heats them,
So by puting a thicker exhaust on lets the heat and fumes get out faster creating less heat.

Great, fire away. How about dual exhaust? That would be cool.

[86-surf]

There was a thread on here saying that the reason they over heat so often is because The exhaust fumes do not get out fast enouth creating to much heat witch over heats them,
So by puting a thicker exhaust on lets the heat and fumes get out faster creating less heat.

Great, fire away. How about dual exhaust? That would be cool.

Thats not a bad idea TWin 2.5'' exhaust sounds good to me!..

(dad can i borrow the vetts exhaust )


(POLL ADDED)

[smurf182]

Dual 3" on a 2L-T?

ROFL

A single 2.5" with or without a straight through muffler will be more than sufficient.

[86-surf]

Dual 3" on a 2L-T?

ROFL

A single 2.5" with or without a straight through muffler will be more than sufficient.

You have to make it look kool tho , A single isn't cool enouth nowa days lol I just like to be diffrent yano