The reasoning for the 1.6 engine was from a desire for reliability, fuel economy, horsepower per dollar, heat management and overall cost. I have been into my rotaries for a decade now, have had nearly 20 Rx-7s of varying years and conditions. The car did have a 12a streetport with a weber 48IDA but due to ingesting a bolt. But 12a parts are drying up, I will not utilize used housings in a race car where the entry fees alone exceed 600 dollars. New housings for 12a are no longer made, and 13b housings are nearly 1200 new, each. All to get about 160 horsepower. The Miata setup i picked up locally for a good price, and junkyard 1.6 motors are cheap as could be.

Car is on the ground. need to adjust the ride height and add some weight to order helper springs.