A decade ago I thought that running a turbocharged four-cylinder would give me the power I wanted without any weight penalties. The engine uses a Turbonetics T3/T4 turbocharger with an external wastegate on a Turbonetics cast manifold with a full engine kit from DOA Racing, including forged pistons and a C270 camshaft. Fuel management has run the gamut from a hacked stock AFM to an HKS AF-CON to Split Second and now Megasquirt stand-alone EFI with Supra injectors. It turns the 37-inch tires on the street without an issue, but the low compression keeps the engine from lugging below 800 rpm on the trail. If I had it to do over again I would just swap in a throttle body injected Chevy 4.3L V-6. It would actually make less horsepower than I am getting out of the heavily modified 22RE-T, but it would provide gobs of off-idle torque, be more reliable, and cost a lot less than I have sunk into the turbo engine.