Here is an example for you lot a mate of mine called tom had a series2 completely standard engine apart from the usual forge double capacity intercooler, exhaust, filter and chip. The series2 made 197hp at 17psi and was fast as fook. Me other mate had a fiesta with the following mods superchip, exhaust and filter running 16psi. When the 2 raced the escort pissed all over him. So me mate went out and bought a pace cooler and a piper t2 cam to get the edge on tommy. His theory being mine now has MORE done to it and is lihghter so will now beat tommys. Guess what happened tommy still pissed all over him. I think the MAIN advantage is the bigger turbo of the escort. O and i have both a standard fez and a standard s1 and i would say the fez was deffo quicker. So make of my experiences what you will