Here's why:
Challenges:
* Engine design: The 20R is a naturally aspirated engine designed without turbocharging in mind. This means the internals (pistons, rods, crankshaft) are not necessarily robust enough to handle the increased stress and temperatures of forced induction.
* Fuel and ignition systems: The stock fuel and ignition systems are not optimized for the increased power output of a turbocharged engine. This could lead to problems like detonation (engine knocking), lean running, and potential engine damage.
* Cooling system: The 20R's cooling system may not be adequate to handle the heat generated by a turbocharger. This could lead to overheating problems.
* Exhaust manifold: Finding a suitable exhaust manifold for a turbocharger can be difficult, as the original manifold is designed for naturally aspirated operation.
* Intercooler and plumbing: You'll need to install an intercooler to cool the compressed air and associated plumbing, adding complexity and potentially requiring modification to the car's bodywork.
* Tuning and calibration: To run properly and safely, the engine will require extensive tuning and calibration to adjust fuel and ignition timing to match the new turbocharged setup.
Potential Issues:
* Engine damage: If the engine internals are not upgraded to handle the increased stress, the turbocharger can lead to premature wear and failure.
* Overheating: If the cooling system is not adequate, the engine can overheat, potentially causing serious damage.
* Detonation: Improper tuning can lead to detonation, which can severely damage the engine.
Recommendations:
* Consult a professional: A reputable mechanic or engine builder with experience in turbocharging older engines is essential.
* Consider engine upgrades: If you're serious about turbocharging, consider upgrading the engine internals (pistons, rods, crankshaft, etc.) to handle the added stress.
* Invest in a proper turbo kit: A complete turbocharger kit designed for the 20R engine will simplify the installation and increase the chances of success.
* Be prepared for potential problems: Turbocharging a stock 20R engine is a complex project with potential pitfalls. Be prepared to invest time, money, and effort to get it right.
Alternatives:
* Swapping engines: Consider swapping the 20R for a more modern engine that's already designed for turbocharging.
* Focusing on naturally aspirated performance: Instead of turbocharging, consider other ways to improve performance, like upgrading the intake and exhaust systems, or upgrading the camshaft.
Ultimately, the decision of whether to turbocharge a stock 20R engine is a personal one. Weigh the potential benefits and risks carefully and make sure you're prepared for the challenges involved.
