You shouldn't have any problems with spooling any one of the turbos mentioned earlier because I've never had a problem with turbo lag running TD06-20G on a Stock SR20DET (with only cam upgrade). I'm pretty sure the KA would probably spool up faster, actually about 99.99999999% positive that they spool up faster in the KA. The Ball bearing T28 is a good choice if you want somewhere around the 300HP range with a nice flat torque curve.
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1990 Nissan 240sx hatchback, 1991 Nissan Silvia K's PS13, 1978 Toyota Corolla KE-30
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