Example: 50-trim and 60-1 on an sr20 using 93 octane gasoline in 2007
Notice full boost around 4000rpm and approx 300lb-ft of torque near 15psi of boost for the 50trim turbo and it maxes out near 400rwhp on a dynojet
The 50trim turbo cost around $300 or less. Somebody gave me the wheel free locally in fact for this test. Thus, the least performance or minimum performance any sr20 should have using gasoline fuel and a free turbocharger (very inexpensive) is shown.
If you intend to sell somebody on the idea of a $2000 turbo, while there is no question that garret makes the best turbo in the world, it should be a significant upgrade over the 50-trim 'free' turbos from 15 years ago. In other words, I wouldn't pay an extra $1700 for an additional 40 or 50rwhp if that is what was being offered, with similar or even slightly superior spool. Not to mention you can rebuild a 50-trim journal bearing turbo as much as you want while the BB garret units are one-time use. Too much $$ lost for too little gained and if the goal is using gasoline only then there is no purpose or reason for the 450+rwhp capable units anyways (mass-rate supersedes all)