How to Turbocharge a Miata for less than $100

by Dave Coleman

After a few timid part-throttle passes listening for detonation, we finally buried the pedal and watched in horror as our little creation ripped off 170 hp on 7 psi of boost, pegging the 100-psi fuel pressure gauge in the process. Shock, horror, giddy satisfaction and abject terror had a bus fight on the way to our heads. Abject terror won the fight. There was no way the car would survive 14 hours of racing at this power level. It would overheat, throw a rod, melt a piston, ping its ring lands into oblivion, and overheat some more. Then the fuel lines would explode and we'd all burn to death. We immediately started trying to figure out how to make less boost.