How do you use an computer to make an 500bhp monster?
Well the long story I could probably write a book on by the time I'm done. But this should give you an idea of why and how.
I have a 04 Toyota Tacoma that I previously had setup with about 300whp. It had all of the TRD addons like the roots-supercharger, 7th Injector Kit, Headers, cat-back exhaust, test-pipe, methanol/water injection, etc, etc. Unfortunately, no matter what I did to the existing system I wasn't going to be able to squeeze much more out of it. The supercharger was one of the main reasons why. First, it was a roots type, which are pretty inefficient at much more than 7 psi or so. Second, the supercharger body was integrated into the intake manifold as a one piece casting, so an intercooler was out.
So, I searched around to see what parts were available from other aftermarket companies.... NONE, zip, zilch nada. So, being in product development myself and having wanted to break into the race part industry for a while now, I decided to desing and build my own system.
I laser scanned all of the areas in my truck where I was going to design parts... I'm currently in the middle of translating those huge point-clouds into nurbs surfaces, so I can use them in my CAD modeling program. In the CAD mdeling program I'll be able to have the real volumes that my truck has inside the virtual space where I'll be designing the parts I need. For example, I'm designing a carbonfiber intake manifold that will need to mate properly with the engine, clear the hood, and I'll be able to see exactly how everything is going to fit inside of my computer before the first metal chip falls on the floor or the first fiber is laid.