It's not an SR20VE. USDM B15s have a roller-rocker SR20DE.
1. Using the RWD manifold would cause clearance issues, I believe.
2. Any motor importer probably could get you a manifold alone if you talked to them.
3. The DP definitely wouldn't fit, the engine's turned the wrong way. The O2 housing (you mean j pipe?) might work, I'd have to see one and look at the angle. If it just turns from outlet downward it'd be fine. Bear in mind that the JDM 02 won't work with the USDM ECU.
It can't be done for 1k. Getting the turbo parts just wouldn't be feasible at that price. If you bought everything used you might hit $1500. Let me think here....
Mani/turbo/jpipe = $500ishWalbro 255 and some sort of FPR = 2-300SAFCII = $150-200Injectors (stock USDMs are 259cc or something like that, they will not suffice even on stock Bluebird T25 boost, which is 7psi) = $100-150IC setup = $300-400
You also need a 2.5 or 3in catback exhaust and downpipe, preferably with a high flow cat and other little crap - oil lines, water lines, etc. I spent roughly $2500 for the kit I used in the writeups you saw. I can babble for awhile, but instead I suggest that your interested friends email me at
[email protected] ... I need to check that email soon.
Anyway, 10psi will net roughly 230whp on a B15 when tuned.