EGR system retrofit

[Patrick]

i'm new to diesel IP; could you please be kind enough sir, to give me a breakdown on how exactly you would perform a simple timing adjustment that will make NOx output considerably less than #2. i'm not expecting 500 or more parts per million reduction, but any reduction will ge good.

and sorry i can't be a smart ass because some of my homies work for the california air resources board.  

SImple, the same way you change the timing on a gasser. Adjust the thing that causes the fire. In a gasser, you rotate the spark distributor. In a diesel, you rotate the fuel distributor (injection pump). As for the cold start, think of it like the vacuum advance on a normal gas distributor. Both systems have an internal advance mechanism that changes timing with rpm. The cold start is a manual override for this system.

[dieselwagen]

In a diesel, you rotate the fuel distributor (injection pump). ....... The cold start is a manual override for this system.

rotate the fuel distributor (as in rotate the whole IP assembly?) or just a certain part outside of the IP?
cold start device, doesn't that part only advance timing when activated through the lever which i pull when starting a cold engine?

as far as retarding the timing, is there a effect with the overall performance with driveability?
what will this do the the EGT? and overall visible soot out of the tailpipe.
can i expect more or less visible particulate, unburned HC?

thanks for all the info.

[Kudagra]

Well, this explains how all those whacked out laws get passed in California.  :lol:    :lol:    :lol:

Thats exactly how it happens...

[dieselwagen]

interesting set of responses, all appreciated. the crazy EGR retrofit concept may still happen but not on my ride.

i will try outside IP mods instead like backing off the max speed adj. screw to give the control lever additional degree of movement before full throttle stop. this move may give me +1 or 2 mph on my max. speed (maybe)