2003 Defender Exhoust Problem

[marek]

Hi All!

I have a problem with my exhoust or more to the point with my catalytic converter heting up so mutch that the inside of my vehicle becomes unbearably hot. As you know the floor is made out of aluminium which conducts heat very well. This is not sutch a problem with normal driving but when i am towing my boat or a camper trailer then the heat starts coming streight through the floor. I'm sure that would be a bonus if i was in GB but in Aus on a 40deg day its not so good! I have wrapped my exhoust pipes and istalled a heat deflector between the converter and the floor and it has helped a bit, but the problem is still there and i wonder if anyone has found a better solution? Can the converter be dumped?

[tombraider]

Dump the stupid thing... Cats have no place on offroaders...

Off to the exhaust shop... throw 3" of pipe from the turbo down....

[dobbo]

Anything can be taken off the car, just a question of registration inspections in the future.

[Bigbjorn]

Run some 2" or 3" flexible tubing (ag. or poly pipe) from the front of the car, say under the bullbar back so as to blow cool air between the floor and the heat deflector you mention.

[tombraider]

Anything can be taken off the car, just a question of registration inspections in the future.

It wont have an issue.

[Rosco]

Dump the stupid thing... Cats have no place on offroaders...

Off to the exhaust shop... throw 3" of pipe from the turbo down....

I've been thinking along these lines .. :twisted:
Any suggestions for a good shop in Brisvegas, and is it true the cost of mandrel bends is worth it ??
While you're at it can someone explain the difference ... some say I'm as dumb as dog s#*t ... but I've met some pretty smart dogs ... :angel::wasntme:

Cheers

[dobbo]

Mandrel bends maintain the diameter of the pipe. Where as a normal 3 inch exhaust may become 2 3/4 inches around corners then 3 inches on straight parts a mandral bent exhaust system will maintain the 3 inch diameter throughout the whole exhaust.

[Frenchie]

Didn't know they had a cat, mine doesn't. :o

[Graeme]

Dump the stupid thing... Cats have no place on offroaders...

Off to the exhaust shop... throw 3" of pipe from the turbo down....

I tried this at a local shop and got an ear-bashing - lucky to get away alive. Does anyone know from where I can get one already made to suit the Disco? I'd like 3" from the turbo mating up to the original muffler.

[DRUT]

Dump the stupid thing... Cats have no place on offroaders...

Off to the exhaust shop... throw 3" of pipe from the turbo down....

here here!!!!!!! open the throat and let the beast breathe:twisted:

[Captain_Rightfoot]

I've been thinking along these lines .. :twisted:
Any suggestions for a good shop in Brisvegas, and is it true the cost of mandrel bends is worth it ??
While you're at it can someone explain the difference ... some say I'm as dumb as dog s#*t ... but I've met some pretty smart dogs ... :angel::wasntme:

Cheers

Rosco.. I went to a muffler shop near me called Rob Bliss Exhausts. The quote was $60 to remove the centre muffler, or $900 est for a complete 3" mandrel bent exhaust. Removing the centre muffler doesn't make much difference to the noise but it makes the car drive LOTS better. much much better low down torque. :)

Can't wait for my tomby ECU now :)

[marek]

Dump the stupid thing... Cats have no place on offroaders...

Off to the exhaust shop... throw 3" of pipe from the turbo down....

I have spend some time today talking to three different exhaus places in Melbourne regarding my problems with Catalytic Converter Heating up the cabbin. One told me that they will look at it but as far as removing it, then its a no no. Another told me that it is an offence to remove cats, and that I can be sluged $5000 and that whoever removes it can also be fined $35000.

Same person also told me something that really confused me and I really would appreciate some technical input on this regardless of legalities.

He said that removing a cat will cause the car to burn mutch more fuel as the engine sensors will detect increase in air flow and and the management system will start dumping lot more fuel. I have always thought that when you increase air flow both into and out of the engine, that it can only be good and improve power as well as economy as the engine can breathe mutch easier. I'm not a mechanic so can someone who knows what they are talking about shed some light on this help me decide what I should do - PLEASE!

:confused:

[tombraider]

I tried this at a local shop and got an ear-bashing - lucky to get away alive. Does anyone know from where I can get one already made to suit the Disco? I'd like 3" from the turbo mating up to the original muffler.

Ring taipanXp and get a complete system from them sent to you then just bolt it up.

And YES they do work...

[tombraider]

I have spend some time today talking to three different exhaus places in Melbourne regarding my problems with Catalytic Converter Heating up the cabbin. One told me that they will look at it but as far as removing it, then its a no no. Another told me that it is an offence to remove cats, and that I can be sluged $5000 and that whoever removes it can also be fined $35000.

Same person also told me something that really confused me and I really would appreciate some technical input on this regardless of legalities.

He said that removing a cat will cause the car to burn mutch more fuel as the engine sensors will detect increase in air flow and and the management system will start dumping lot more fuel. I have always thought that when you increase air flow both into and out of the engine, that it can only be good and improve power as well as economy as the engine can breathe much easier. I'm not a mechanic so can someone who knows what they are talking about shed some light on this help me decide what I should do - PLEASE!

:confused:

The guys full of it...

If no-one will do the job for you just get a pipe from an earlier TD5 and fit that.

Cheers
Mike

[LandyAndy]

What the exhaust shop is saying is true,totally illegal to remove a cat converter.BIG FINES FOR BOTH THE OWNER AND SHOP!!!!
Is the Defender a european delivery???? Didnt think we have cats on ours.
As Tombraider says,if a shop wont touch it,buy the non cat aftermarket kit and DIY.If ever questioned,"it was like it when I got it"
Andrew

[lrdef110]

I purchased an engine pipe off a pre 2002 TD5 wreck and replaced the cat pipe. So know one knows the difference. Certainly takes a heap of heat out of the floor.

[marek]

I purchased an engine pipe off a pre 2002 TD5 wreck and replaced the cat pipe. So know one knows the difference. Certainly takes a heap of heat out of the floor.


Have you noticed any changes in fuel economy after cat was gone?

Increase / Decrease / No change?

[lrdef110]

Never really thought about that one, but I can't remember noticing any difference. Happened about the same time the ECU was rechipped and Tombraiders intercooler added so it would be difficult to tell anyway.

[Graeme]

Ring taipanXp and get a complete system from them sent to you then just bolt it up.

And YES they do work...

Thanks Tombraider. I've just had a look at their web-site and will give them a ring before too long.