Forget the T3 - they are old school.. too large, too much internal inertia and poor blade design, and just inefficient.
Your best bet would be to try a T28 Ball Bearing turbo. They bolt straight up to the S-Coupe's exhaust manifold (as will any T2, T23, T25, T28 turbo) saving that hassle. Having a ball bearing core, they spool up in next to no time, and you will be more than pleased with the results.
New one will cost around A$2,000, however you should be able to pick one up off a Nissan 200SX for around A$500-800.
Cheers
Bretton
<img src="http://www.zip.com.au/~hyper/bretton_car_spec.jpg" border=0>
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Edited by - Bretton on 02/04/2002 12:24:59 AM