To hit 800-1000bhp you need
- a forged engine with low compression pistons and ideally even stroked and sleeved.my preference is the 3.9l stroker kit from Brian crower.
- good return fuel system. Eg CJM stage 3 with twin fuel pumps or big single pump.
- 1200-2000 cc injectors eg injector dynamics
- NOS or meth/water injectoin for cooling ideally and more power.
- Twin turbo kit with the right sized turbo
- free flowing exhaust and headers
- Kinetix SSV intake or Cosworth
- upgraded MAF unless you use a standalone ECU which supports MAP tuning (my preference)
- cooling mods: oil cooler, bigger radiator, uprated fans etc
- uprated 2-3 step colder plugs
- uprated clutch. Carbonetic or exedy triple plate clutch.
- then everything else to support a car with 1000bhp and dependent on intended usage eg track or drag or drift or just show and shine.
Eg brake upgrade etc
Speak to Advanced motor engineering or Tony here who who has a 1000bhp zed. It's hard work and deep pocket stuff.
In anycase my zed with 430whp SC'ed is mighty quick in track and I eventually I'll take it to 500+ whp but I can't ever see why I would need more!!!
Traction will be a biatchh to start with the reliability. Goodluck and keep us posted.