Hello all, I have a 90 crx with a dohc zc engine. I also just came across a IHI screw type supercharger off of a mazda millenia s. I have not been able to find much information about the air flow capabilities of this unit but I am thinking that it could be a decent upgrade for my current engine. Has anyone here ever supercharged a d series engine? I know the popular trend is to turbo a engine not to supercharge but I have the charger already (it was free, just had to pull it) and was wondering if it would even be worth the trouble. Any thoughts or advice would be welcome.