I'm thinking of buying a 200zr (z31 300zx shell with an RB20DET) and so I read up on the RB20 engines; found out that ZR's come with the red top version.
What I wanted to know is what exactly the difference between NICS and ECCS injection systems is and what can be done to get the power of a silver top RB20 without getting a whole new engine.
(Might as well stick an RB25 in if I'm going for a whole new engine)
Also any other ideas on some relativley simple mods that would be worth doiing on a budget to an RB20DET?
