Engine Masters - Season 2, Episode 08: How Much Boost Can a Stock Engine Take?

On this episode of Engine Masters presented by Amsoil, find out if you can stuff 25 psi of boost into a cast-piston, stock-crank short-block and have it live! Watch as we strap a ProCharger centrifugal supercharger to a bone-stock Chevy 350 bottom end and keep stepping up the boost to find the breaking point. But there’s a hitch: At the start, we agreed we’d let the engine live if it could make 750 hp and survive. So did we leave parts on the floor, or did we make stupid power with a foolish combo? We’ll tell you this much now—we did the best we could to show you blow-through boost tuning by keeping the ignition timing and the air/fuel ratio very conservative while also using Rockett Brand 118-octane fuel to prevent detonation. Engine Masters is supported by Mr. Gasket, Earl’s Vapor Guard, Auto Meter, and Permatex.