B&D, what make, model and year do you have? Just because it doesn't have an EGR valve doesn't mean it doesn't have Exhaust Gas Recirculation. Without EGR, timing has to be retarded to prevent pinging AKA spark knock. Bringing the timing back increases fuel usage, and no EGR increases oxides of nitrogen, the main ingredient in photo chemical smog. Catalytic converters have no effect on oxides of nitrogen. GM has eliminated EGR valves by going to variable cam timing. By going to variable cam timing the "power band" of an engine can be extended over a broader RPM range. EGR can be done more accurately with cam timing than introducing it through the intake where no 2 cylinders get the same amount. Removing a properly functioning EGR valve from an engine will not ever increase fuel economy or power. Most of the time it will have an adverse effect.
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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