DPF- Diesel Particular filter -yes/no?

[pushrod]

Do we in Australia get our Puma Defenders ( 2011 ) with or without a DPF ? it seems to vary from country to country depending on emission laws?

[langy]

I was bored, so I looked it up - Euro 5 diesel MC class (under 3.5ton 4wd etc) partially starts in Australia ( ADR 79 ?) in 2013, with full version by 2016. Whether or not new Puma's come with a DPF is a toss up - you know what LR are like.

http://www.dieselnet.com/standards/au/

[Bundalene]

I was always under the impression that Petrol vehicles had catalytic converters whilst diesels had particulate filters. A bit of research has shown this is not necessarily the case.

The pic below is of the item immediately after the turbo on our 2010 Puma










Here is a bit of interesting reading, most of which apply to stationary engines.

Diesel Oxidation Catalyst


At the end of the day, I an still unsure of what the device actually is and how it works - the fact that it has KAT on it ???



Erich

[rick130]

Erich, from a quick google it looks like a cat.

Katalysator für Land Rover Defender TD4 90/110/130er | eBay

About us | Diesel performance tuning and economy remap chip tuning for Landrover Defender Discovery TD5 Puma TDV6 TDV8
The development of this consisted in using two cars, one of which was the well known Allisport Land Rover Defender Puma, to commence the long and ongoing mapping process and saw us develop an exhaust downpipe as a replacement for the Catalytic converter

[Loubrey]

Pushrod,

It looks like no one will know untill someone actually has a look on one of the new ones...

Land Rover Defender for 2012 - Next Car Pty Ltd - 15th August, 2011

[pushrod]

i was more interested if my current 2.4 Puma MY2011 has one ..?
it seems to make a difference in what engine oils are suitable ..

[gitney]

Pushrod,
Yours doesn't have one. You've got a CATalytic converter but no diesel particulate filter.

[cal415]

anything built from sept 2011 onwards will have the DPF apparently, along with the smaller 2.2L, all 2.4s have a cat as pictured by bundalene, apparently removing these see's some good performance gains. I cant imagine having a super hot cat sitting right next to the turbo would do much to help heat soak.

[pushrod]

thanks for clarifying this boys...

[Iain_B]

Does anyone have any before and after dyno figures to verify performance gains on removing the Cat or the centre muffler. Old school free flow exhausts just don't work with modern EFI systems without modifying the fuel map a well. When I modify my cars I also like to know that what has been done is actually increasing performance, rather than just making more noise. Too often claims of performance increases are just not backed up with real world numbers.

On my Puma, I'm not sure what sensors are where, how the computer settings /fuelling are set and whether removing the cat will affect some readings on a sensor somewhere that would change how the EGR valve works, the result being no performance increase at all, or even worse, poorer performance.

anything built from sept 2011 onwards will have the DPF apparently, along with the smaller 2.2L, all 2.4s have a cat as pictured by bundalene, apparently removing these see's some good performance gains. I cant imagine having a super hot cat sitting right next to the turbo would do much to help heat soak.