power ambitions

[luis741953]

hey i have set my mind on a 350-450 Hp sr20, now i have been reading, and i know the best way to get more power is by doing a turbo upgrade, which implies some headwork, to be safe, i have also heard that the 370 injectors in the s14 sr limit the turbo's power, how much can i gain with a injector upgrade lets say 550's, let me know. My question is what should be my next step to reach my goal( 350-400 hp)

also i have no idea how to tune a car...

[S13FASTBACKSR]

get gt2871r .64 a/r if you want 350-400whp. A gt3071r if you want up to 450whp. 550cc injectors will limit you to around 350whp before you start getting to high in your duty cycle. So if you want anything over 350whp but not more than 450whp then you'd probably be best off with 740's. also check out this page. This guy made 436whp@26psi on a 3071r. Keep in mide Full Race made 499whp@26psi on theres. same turbine housing too. And i dont think full race was using race gas because If you look at this guys dyno graph you notice his torque curve falls off in the high rpms..it should hold steady therefore more HP too..he needs better cams probably. showthread.php?t=153611