Street tuning

[asshanson]

Just a few quick questions, looking for opinions, your experiences, etc.

First off, my old setup was a t28, fmic, 2.5->3" exhaust, and 650cc injectors. I ran about 18 lbs of boost that faded to 15 or 16 at redline. I usually flowed about max 1680 hz for air (at 5500 rpm, it faded bad up top), and made 220awhp on DynoDynamics. Corrections on the AFC were -32%.

I just changed to my super 20g, and I would flow almost 1400 hz running spring pressure at 9 lbs. I upped it to 15 psi and it went to nearly 1700 hz, now I upped it to a spike of 22 psi and settles to 19 psi, flows 1870 hz on one run. Timing is good, 18-22 degrees until redline. Corrections are about -25 to -28% now.

I'm sort of concerned though because I expected a lot more gains. Do the results seem reasonable? Who else runs a 20g, do you have similar airflow? How much power do you make at similar settings? Just trying to get an idea of what to expect at the dyno day.