When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
They're a 2.3 V6 with supercharger. Apparently they leave the inlet valve open on the compression stroke so you're compressing against the pressure in the supercharger, then the valve closes, fuel injected and the spark fired. They make about 210bhp IIRC.