Go check out the specs on the ecotec motor, what you refer to as the ION engine and then come back.
Just so you know the ecotec motor is the fastest 4cylinder right now.
AND is making more hp then the 4g63 did stock vs. stock. The 1991 4g63 turbo motor only made 195hp and 203ftlbs stock.
Ever see an ecotec motor next to a 4g63 motor? Here, let me help you...
compared to...