if you're building a nitrous motor you still want to go low compression. you're spraying cold condensed air into the combustion chamber and its basically the same as a turbo or screws. here's how most people do it, they build a high compression motor to be able to keep up without the juice and then spray it when they start to hear that turbo boosting past them a nitrous race motor should be low compression. in my case i'll probably just build a boost motor but the size of the turbo i want to run will have to be spooled with nitrous until its boosting.

I think i'm going to be shooting for 600whp. b18, 20 or h22a. whichever one i run across first. either that or go back to my original plan, buy a 240 and throw a 1 or 2jZ in it.