Car is a 1983 300D turbo...
In replacing my flex pipe, the flanges were about 1.5 inches apart, so I had
to make my own intermediate setup...
My question is, Would a 2 inch long length of pipe that is 1/8th inch (2 1/8
diameter vs the rest that is 2.25" diam)smaller than the rest of the system
cause any sort of noticable restriction or backpressure, that I should be
worried about it or get the area welded with a larger diameter pipe so that
there is no restriction?
As I understand it, a diesel is just a big pump, and the only way to make
more power is to burn more fuel. Gas engines have to worry about
restrictions because any way to allow more air in and out will allow more
fuel (because the ratio needs to be pretty exact, unlike a diesel), and
thus more power. Since diesels have such an excess of air, and the fuel
isnt changed by the amount of air going in, does it matter as much or at
Thanks very much for your help.