About

A larger nozzle will result in much faster prints, right? Since it affects the printing volume it will affect it like this:

(new diameter / old diameter)^3
(0.8/0.4)^3 = 8

Hoorray! 8 times faster! At least I thought that…

The Problem

As the author should already have known from RFC1925(8,9) is:

(8) It is more complicated than you think.

(9) For all resources, whatever it is, you need more.