EGR gasoline system

Someone knows, what is the amount of exhaust gases that must be made for a 1400 cc engine or as it was calculated. And what is the speed and pressure with which the exhaust gases come out, what happens is that I need to know what pipe diameter use to install the EGR system in a C14se engine of an Opel Corsa B 1.4 LT. And I need to know how much exhaust gas I must recirculate to the admission duct, and I need to know what the pressure and velocide of these gases are. And if the density of them is not much
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Look, apply the thermodynamics of famous fluids, to calculate diameters lengths, wall friction coefficients, density, temperature etc. And go crazy ... to abbreviate, take the measures of 1.6 Opel and look at the ducts. What regulates it is the opening time of independent EGR of diameters and others. A proportion of 1.6 sees 1.4. The rest is complicated to explain here