Looking to run a ~400rwhp build

[rider384]

As is stated in the title, I'm looking at running a 400hp build from an SR20DET.

I have an idea of what I'd do, I'll run it by you:

720cc injectorsNew cam (Can someone recommend me one?)New exhaust systemUp the turbo's boost to around 13psi

Of course a 1.2mm head gasket to cope with the power.

And that's really the end of my ideas.

I'm guessing this build would run ~350rwhp.

Would the stock internals be enough to run this?

What about the transmission?

Thanks to anyone who helps.

[johnnyappleseed]

what turbo you going to run?

[rider384]

Garrett T25g, stock turbo.

I want to do this on the stock turbo because I don't have 3,000 dollars to shell out on a new turbo.

[johnnyappleseed]

there is no way man if you got the gt28r71 you could reach close to that . that will be about 1200 for turbo.

[rider384]

What do you think I'd run with the stock turbo?

[johnnyappleseed]

mid 200's . the hks t25 can make mid 300's. but your best bet is the gt28. although some peopl have made mid to high 300's on the s15 t28 spec r. and that is 720 at frsport

[rider384]

What'd you recommend for a 400 build?

[johnnyappleseed]

topmount is too pricey. so stay bottom with gt28r71. bigger injectors but you already got that covered. cams. bc are good bang for the buck. front mount. 255 walbro fuel pump. a rom tune with safc. or standalone. oh better maf too. that should get you started. bottom end can hndle up to around 450. but never hurts to upgrade that if you could

[jr_ss]

Do some research man... You need to find out and learn about what you need and want. You can't just slap stuff together and expect it to work.