The 22R-E was a 2.4-liter four-cylinder engine produced and designed by Toyota between 1984 and 1994. It was used in several Toyota vehicles such as the Celica, 4-Runner, and Toyota Pickup. Without modifications, the engine produces 112 horsepower and 143 pound-feet of torque. There are a number of aftermarket parts available for the 22R-E engine that improve its performance by increasing horsepower. Some of these parts replace existing engine components, while others are bolted onto the engine itself.
Replace the 22R-E’s air intake with an aftermarket intake to improve performance. First, locate the intake in the engine compartment and open the intake housing if your vehicle has one. Then, remove all components that connect the intake to the engine. Gently remove the air intake from the engine bay and set it aside. Finally, place the replacement air intake in the empty area where the old intake was, replace all connections and replace the intake housing.
Replace the 22R-E heads with replacement heads to improve performance. First, raise the engine slightly out of its bay so you can reach all the heads connected to the block. Remove all connections from the block and disconnect the heads from the engine itself. Align the replacement ones with the connection brackets and reconnect everything. You may need help with this step in order to keep the headers in line with the block connection.
Replace the 22R-E exhaust system with an aftermarket one to improve performance. First, raise the vehicle with a hydraulic lift or manual jack and chock the tires. Make sure the vehicle is stationary before proceeding. Remove the exhaust system block connections and the exhaust system itself from the underside of the vehicle. Align the new exhaust system with the bracket connections and reconnect the connecting hardware, being careful not to over tighten. Finally, connect the new exhaust system to the headers.
Install a compressor or turbocharger system. The details of installing one of these systems varies drastically from manufacturer to manufacturer, but they are usually very demanding installations involving a lot of engine lifting, punching or drilling of holes, and replacement of many other engine components.