If you put a V8 in it the Rotary world will disown you. V8s in RX-7s are kinda like a circus act, everyone oohhs and aahhs but in the long run when you at home at night crying your self to sleep in bed you will be ALONE. Listen to Wanksta and Trini4U ( just met him today seems to know whats what) Like i said earlier Rob at Mainstream does all the work on my car and ill tell you what for stock turbo its a hell of a good time.