Oil burner engines with EGR

[thepeoplespal]

Having recently acquired a Pug 307 HDI 2.0 litre oil-burner Having come from a 106 Rallye I'm pretty disappointed with the performance so far(overtaking and general get up and go) and in my pursuit in deciding whether to do an upgrade or just selling the thing on, I have noticed that a number of forums have advocated disabling the Exhaust Gas Recirculation (EGR herein) pipe.

Unfortuately no one can adequately explain just what disabling the EGR system actually does to the engine, apart from the acknowledged increase in emissions. Obviously I can consider chipping to give a bit more mid-range ommph, but I'd like to take one thing at a time.

So rather than just doing something via hearsay can anyone give a good explaination of exactly why anyone would consider disabling the EGR system?

>> Edited by thepeoplespal on Sunday 28th May 01:09

[thepeoplespal]

Interesting reply on EGR especially the sooting issue, looking at the service history of the car it looks like the previous owner ignored the service intervals (in a good way) the on board computer suggests by changing oil sooner rather than later than specified.

I know that the torque of my engine isn't what I was expecting from a diesel, I do mostly motorway journeys for which the HDI is okay, but around town it is very easy to get bogged down in too high a gear (although this is good for fuel consumption).

I know more about the benefits/problems of EGR and SCR (uses Adblue Urea to kill the particulates and Nox) on trucks than on cars. SCR appears to more fuel efficient for Euro4 than EGR, but has the added hassle of having to have a separate tank for the Urea.

>> Edited by thepeoplespal on Sunday 28th May 01:19