im turbo charging my zetec se this yr.just gathering my bits to do the job.the zetec se 1600 blacktop is stronger than the zetec s.mine is a 2001 engine.with the right bits and pieces you could make a quick car on low boost.the pistons from the astra 1600 about 03 model fit the zetec engine and are surposed to be forged.this will drop the compression alot.i read alot of info on turbo sport and they say the zetec se engine responds really well to supercharging.alot of info and research is required though