Originally Posted by hachibill
just wondering what steps should i take next for more power, kinda want to keep my current turbo if at all possible. i want 350 to the wheels.
my setup: blacktop s13, GTIR t28, 480cc injectors, maxima maf, front mount, stainless o2 and DP.
i put down 300hp,290tq at 15psi. i heard this setup is good to 18psi safely. how good is the stock head gasket? i was thinking cams and 18 psi should get me there, but what cams should i get, keep in mind i need mid range and TQ for drifting, not all out power. what about the top speed intake manifold? i wouldn't mind a s15 exhaust manifold either.
It's time to upgrade your entire setup then. The Turbo, Injectors, Maf, cams, intake manifold should all be replaced if you want to get there safely. 18psi won't get you to 350 to the wheels unless you're running race gas and maybe 22-23 psi.
You'd be much better doing 550cc injectors, a GT2871R turbo, and JWT C1 camshafts. Don't forget valve springs and rocker arm stoppers either. Add a Greddy intake manifold. The Top Speeds need to be extrude honed before they make remotely near the horsepower the greddy does. Ask martin about his dyno proof of that. From there you will be able to make 350 all day at less than 18psi.
the funniest part is that i have that entire setup in stock at enjuku right now, lol.