Im a newbie so be gentle Im thinkin of getting a nice body non turbo rx7 and just get a hit turbo. What are the main differences between the 2?

 

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It is much easier to just go out and buy a TII. However, you can swap in the whole drivetrain, including engine, engine wiring harness, transmission, drive shaft, starter, and rear end, etc. Basically, you would need an entire donor TII to rip the **** out of.
You can't just strap a turbo onto a NA car. It would need custom exhaust, computer, fueling, tranny, etc, and the higher compression ratio in the N/a engines would most likely cause detonation (motor= dead).
Sean Cathcart
Just buy a TII, you'll be happy