VQ37VHR Build Potential

[hazesleepgod]

I've been doing some research on the VQ37VHR, and my main goal is to make at least 425whp on natural aspiration. Meaning, about 450-475 to the crank given some mental estimates. In my case, the wheelbase is going to be shortened around 9.1in (100.4in --> 91.3in) to an exact. Added, a lighter flywheel, lighter driveshaft, etc. With all of this unadded load-travel, for a lack of better words, put me a little closer to that number? If needed more info on what exactly I'm adding to the drivetrain to achieve this, let me know and ill update with a more thorough list.

 

With that, I don't expect to come near this number on decreasing the travel distance of power. The second question is, with this considered, would it be possible to comfortably make this power output, without tapping into the bottom end or increasing the displacement?

 

The modifications I have planned for the top end includes, but isnt limited to,

E85 tune, Billet Fuel Rails, Upgraded injectors, High-Pressure Fuel Pump, Performance Ignition Coils, Performance upper/lower Intake manifold, Cold Air Intakes, JWT V2 Cams, Valves, Ported & Resurfaced Cylinder heads, Dry Sump Crank Pulley, Dry Sump Oil Pan* (Kinda cheating with this one). 

 

I think this number is decently achievable, but the more research I do, leads me to finding less and less 400hp N/A VQ37s, at least those without tens of thousands of dollars invested. Don't get me wrong, the estimate is close, but not just for an engine.

Apart from the questions above, I guess in general, is it even feasible? Does my theory hold any ground here? Will I need to start looking into the bottom end being build to make said power output? 

 

Any help/comments/opinions would be greatly appreciated!