1st Gen RX-7 with 1650 HorsepowerDecember 6, 20101 CommentRX-7This video below shows a first generation RX-7 with a twin turbo 427 cubic inch Nelson Racing built motor swapped under the hood. Watch as it easily smoke the tires whenever it wants using 1,650 horsepower. Source: Over-Boost Related 1 thought on “1st Gen RX-7 with 1650 Horsepower” jaime December 15, 2010 at 4:43 am I see it is a fast engine, but this is a Mazda. You should had used a 20B 3 rotor engine, instead of a piston one. Those V 8 engines are for american classics, Mazda rotaries use Rotary engines. Reply Leave a Reply to jaime Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Notify me of follow-up comments by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.