RACER has confirmed the Mazda Motorsports team will race in this weekend's Sahlen's Six Hours at the Glen with a gas-powered 2-liter turbocharged 4-cylinder engine in the No. 07 P2 entry, and the existing 2.2-liter turbodiesel 4-cylinder motor in the No. 70.IMSA approves gas-powered Mazda turbo engine for competitionAt present,...