Quote Originally Posted by albi View Post
hi mate i new here and this is my take on this subject
removing or blocking the EGR is not a performance mod !! it only works at cruise and it lowers the cumbustion chamber temp to reduce NOX "nitrides of oxygen" a very silent killer if it leaks into cab!!
the sooting is a by product we have to live with ,it is a polution control device and ""ILEAGAL" to remove or modify the same as removing a cat converter$10 grand fine if caught!!
so if you leave it there it already is a performance mod ! well kind off lol.
so in a nut shell , if i cut ur arm of ,you can live without it cant you ?? but if it wasnt ,it would be better !!
I look at it this way, by fitting a catch can, you remove most of the oil vapour which adheres to the butterfly and the inlet manifold and the MAF, contaminated MAF sends a message to the ECU to send more fuel, so on the ZD30 you end up with a hole in No 3 piston.
Blocking the EGR prevents the soot and carbon from sticking to the oil vapour within the intake system, be it the inlet manifold, the intercooler or butterfly.
This is all a part of the "NADS' system and is a proven modification to the ZD 30 direct injection motor prior to 2007.
Cheers, the ferret.