Taking the CAT out of PUMA

[Drover]

Well, installed a Terra Firma De-Cat pipe yesterday and went for a 160k test drive to day.
What a difference, Early advantages are -
1/ Smoother, crisper power from low revs and right across the rev range,
2/ Noticeable reduced heat build up in seat box and hand brake lever,
3/ Appears to better fuel economy
4/ Lower EGT’s
Cheers

[Naks]

Nice!

Is your truck still under warranty? I can't wait to do mine, but still 4 more yrs to go under the warranty :angel:

[Drover]

Hey Nak’s,

I have still got about 10 weeks of warranty left, but I just couldn’t wait…:D

I have done a few things over the last couple of years that could potentially negate warranty claims, but the Stealer hasn’t mentioned them and my warranty repairs continue.

Cheers

[Allan]

Well, installed a Terra Firma De-Cat pipe yesterday and went for a 160k test drive to day.
What a difference, Early advantages are -
1/ Smoother, crisper power from low revs and right across the rev range,
2/ Noticeable reduced heat build up in seat box and hand brake lever,
3/ Appears to better fuel economy
4/ Lower EGT’s
Cheers

Hi Drover, did you remove the centre muffler as well or is that to come?

Allan

[Drover]

Hi Allan,

No, I left the centre muffler in place and do not have any plans to remove it.

I wasn’t looking for extra power and certainly do not want a loud exhaust. The aim was to reduce EGT's, with the new map and intercooler.

Of course now it is in, it has made extra power and flattered off the power curves very nicely.

I haven't fitted an EGT gage yet and removing the cat was the best advice I could get on how to lower those temps.

Pete Bell has assure me that there is no issue with EGT’s in his testing but as I tow a van from time to time, I find that I am using large throttle openings for up hills and just want to be safe as possible.

Cheers

[PAT303]

Drover,was it as hard to remove the cat as was said on the defender2 forum?. Pat

[Drover]

Hi Pat,

It was a bit of a squeeze, the cat is huge.

I started by removing all of the heat shields, brackets & then the front prop shaft.

I cut the engine pipe about 20cm below the cat and with a bit of a wiggle out it came.

The De-Cat pipe slipped straight in, bolted up and then fabricated new brackets to hold the heat shields.

Cheers

[djam1]

Removing the Cat from a Puma looks like they did it on this site :wasntme:

File:Felis concolor (Puma) fur skin.jpg - Wikipedia (http://it.wikipedia.org/wiki/File:Felis_concolor_%28Puma%29_fur_skin.jpg)

[PAT303]

We'll be having a beer or six at xmas Drover,I like the way you think. Pat

[Drover]

We'll be having a beer or six at xmas Drover,I like the way you think. Pat

Sounds good Pat, might even find a steak to BBQ:D

[Benny_IIA]

Hi Allan,

No, I left the centre muffler in place and do not have any plans to remove it.

I wasn’t looking for extra power and certainly do not want a loud exhaust. The aim was to reduce EGT's, with the new map and intercooler.

Of course now it is in, it has made extra power and flattered off the power curves very nicely.

I haven't fitted an EGT gage yet and removing the cat was the best advice I could get on how to lower those temps.

Pete Bell has assure me that there is no issue with EGT’s in his testing but as I tow a van from time to time, I find that I am using large throttle openings for up hills and just want to be safe as possible.

Cheers

Alive tuning sell a mid pipe replacement for defenders with a straight through reso in place of the muffler to improve flow and keep the noise down.

[patclan]

Hey Drover,

Just wanted to ask, does the old pipe have studs at the turbo end?

I have my pipe delivered from alive and got all excited, removed the heat shield and stopped, I have M8 nuts and bolts for it that I bought, but was just curious what was on it, it looks like it could be difficult to get a spanner underneath to tighten them up, but was hoping once the cat is removed then there would be enough space and visibility yo get to it from underneath.

So how did you fix yours on?

cheers
Pat

[Drover]

Hi Pat,

Once the cat is removed there is a enough room for a socket on an extension to reach the under side of the turbo.

I had the missus hold a spanner on the bolts from the top.

Made up some basic brackets out of aluminium to attach the factory heat shields.

All good.

[patclan]

Thanks mate,

A job for tomorrow then, just need to find something to form a bracket for the heat shield.

Cheers
Pat

[Drover]

I just used some 2mm plate. Easy to bend and cut, you got to love working aluminium.

One piece bent around the cat to form the right shape to go around the bottom of the heat shield and then extending down to one of the spare bolt holes on the engine block. (looked a bit like a boomerang before you put the bend on one of the arms)

A second piece bent to clamp around the pipe and then leading to the other end of the “boomerang” around the heat shield (this was just a straight strip)

Good luck

[olbod]

Hey Nak’s,

I have still got about 10 weeks of warranty left, but I just couldn’t wait…:D

I have done a few things over the last couple of years that could potentially negate warranty claims, but the Stealer hasn’t mentioned them and my warranty repairs continue.

Cheers


Crikey mate,
what warranty issues have you had and needed to repair.

Cheers.

Robert.

[Drover]

Not much really,
Broken rear seat clip
Broken sun roof latch
Rear diff pinion seal, just once
Had stealers chase a vibration but that was caused by the 2" lift
Water egress issues

I think that is very good run over 3 years

[DeanoH]

Not much really,
Broken rear seat clip
Broken sun roof latch
Rear diff pinion seal, just once
Had stealers chase a vibration but that was caused by the 2" lift
Water egress issues

I think that is very good run over 3 years

Bloody nuisance when they forget to put the holes in the floor !!:D:D

Deano:)