You can produce 400+ hp WITHOUT H20 Injection. I don't think it is *necessary*, but it can't hurt it. I am not sure if anyone has pushed an SR20DET to it's limits to see what kind of HP figures can be accomplished. I am in the process of dyno tuning the car this week. I will keep everyone informed on what the DET can handle/produce.
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Louis Anaya 1992 Sentra SE-R
13.6 @ 111 mph(Street Tires),12.7 @ 112 mph(Slicks), Bluebird SR20DET w/ GTiR Pistons,T3/T04E,Deltagate Wastegate (7-9 PSI) FMAX Manifold, RevHard FMIC, JWT S3 Cams, JWT Ported & Polished Head, 1996 200SX SE-R Welded & Cyro Treated Tranny, ACT Xtreme P/PL & 6 Puck Disc, Cobra MAF, JWT ECU w/ 4 Bar Fuel Program, MSD 50lb/hr Injectors, JWT Fuel Rail, 300ZXTT Fuel Pump, AeroMotive Adjustable Fuel Pressure Regulator, Greddy Type "R" BOV, Greddy Profec B, Greddy Boost & EGT Guages, UR 4 Pulley Kit, Powerslot Rotors, Axxis MM Brake Pads, ES Motor Mounts, Topspeed Short Shifter, Momo Cobra Shift Knob, KYB AGX Struts, GC Coilovers (350F/600R)& 17x7 White Tenzo Shu-4's w/ Sumitomo 205/40/ZR17 Tires (Street), 13x7.5 White Lenso VPD's w/ Mickey Thompson 24x8x13 Slicks(Drag)