This week I removed the EGR (exhaust gas recirculation) and fabricated two blocking plates. Apparently it should increase the fuel economy, reduces the wear in the engine and eliminates one possible reason of any black smoke issues (knock on wood, we don’t have them yet)
Wikipedia has also something interesting to say about this modification:
EGR deletion in diesel engines is considered justifiable by a wide range of people, including the environmentally conscious. Although deleting the EGR system results in increased NOx level hydrocarbon emissions, Particulates, Carbon monoxide and Carbon dioxide are drastically reduced. Furthermore, EGR deletion results in an increase in fuel economy as high as 25%. Exhaust gas recirculated back into the cylinders adds wear-inducing contaminants and causes an increase engine oil acidity, which can result in an inefficient, poorly running engine. The increased level of soot also creates the need for diesel particulate filters to prevent environmental contamination.
A nice side effect is to have more space in the engine for future projects as well as the best spot (pre turbo) to mount a sensor for the Pyrometer gauge. The top blocking plate is out of 1/4 inch aluminum and the bottom plate is 1/4 inch solid steel, because it’s mounted on the hot engine block.
I also cleaned all disconnected pipes and fittings from 16 years exhaust soot.
HI there- How did this work out for you? Did you notice a greater increase in fuel economy?
Worked out well. Didn’t noticed any significant increase in fuel economy. I did it manly to decrease any black smoke as well as to open a good spot for the pyro probe.
What is your fuel economy. Im only getting about ~480km max on a tank (almost dry). I had hoped for more with a diesel! Have you any tricks for that? I talked with guy in Seattle about the oil filter, I may go that way but wanted to be sure of the investment/oil quality. I drive alot, so its important to me.
Do you have a 5spd or auto tranny? Almost dry means you are running already a while with the yellow fuel light on? With my old automatic l300 (with stock tire size) I could go around 600km till the light comes on. Now with DinoEvo (larger tires, 5spd = smaller tank) I get maybe 500km till the light. I’ll add another 80l auxiliary fuel tank soon to extend the range.
As for the Trabold filter, it’s proven to work by many people, so I’m not expecting any surprises.
Did U remove TURBO? I cant see
No, the turbo is still there. I don’t see any reasons to remove it. Works great and makes the van lightning fast :)