those rpm's are a bit high if you want to get the good mileage (in a turbo app.)
yes you can put a turbo on an N/A motor just the way it is, but you need to put the turbo intake on as well. the only problem is exhaust gases.
http://www.dieselvw.com/EGTGauge.htm thats a cheaper gauge, but nobody has commented on the responsiveness of this gauge... has anyone bought one???
http://www.aircraftspruce.com/catalog/inpages/westfaa_egtcht.phpi forget which one was recommended, but these are quick reacting, and very good quality! jake on this site gave it a very good review! it was about $80 for both the probe & gauge. their gauges aren't pretty, but they do the job!
now the N/A pump will need to be turned up most likely to provide boost, and you won't have any boost enrichment. for this you need to either buy a turbo pump, or the turbo pump head. spearco made a turbo kit though, and it had a boost enrichment device that screwed into the max fuel screw. quite ingenious, and could easily be re-constructed by someone with the right skill :wink:
now if you installed a small K03 or VNT turbo, you wouldn't need the boost enrichment device, as the turbo would spool very quickly and give you the boost to burn the extra fuel. OR you could simply increase the fuel, but wait till the turbo gets going before you mash the pedal :wink: (keeping your EGT's below 1300-1400F)