Are we still talking about this ~ idea???
You are never going to get the power curve from less displacement.
You talk like it's going to be cheap to buy a parts car, then build a forged Zetec, then add a turbo kit, then add et cetera.
Like Dan said for 1/5 the cost or less you can do a 3L swap and equal the "peak" output of a typical boosted Zetec (heck beat the S/C outputs I've seen!) yet have a much stronger area under the curve. (50% more displacement then 2 liters does that)
Heck without even going into the 2.5L you can make great power.
We don't even have to bring up boosting the V6.
If you had a Zetec 5-speed to begin with then by all means KEEP it a Zetec and turbo that bad boy. That makes a lot of sense and would be a great performer for the money.
I'd recommend that over replacing it with a V6 because it's already there to begin with.
