Achieving 600 RWHP

jran76

No doubt, 600-650 HP on a stock block is asking for future problems, and probably in the not too distant future. I would recommend a new radiator, built bottom end, and return fuel system at a minimum in addition to what you have listed.

Even with the above, you always need to be prepared for potential issues on a car putting down twice the factory HP. Things break (axles, diffs, trans, etc.) when you start to do that. You really should have a second car, or you will regret it later. Not trying to talk you out of it as many people have done similar builds on Z's in the past, but it sounds like you need a better idea of what you are getting into.

You can get by with a single fuel pump (check out the new Deatchworks pump), but you also need to consider a better form of EMS than an UpRev tune with that kind of power (HKS, Haltech, etc.) and full set of gauges (wideband A/F, boost, oil temp, oil pressure, fuel pressure at a minimum).

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2009 G37S Sedan-6MT: Advan / Volk / Tein / SPC / Invidia / Cobb / K&N