Turbocharger:
Pros:
* Higher potential power output: Turbos can generally achieve higher boost levels and thus more power than superchargers.
* Better fuel economy: Turbos operate only when needed, reducing parasitic drag and improving fuel efficiency, especially at low RPMs.
* Lower initial cost: Turbochargers are generally less expensive to purchase and install.
* Easier to fit: Turbos are typically smaller and easier to fit in the engine bay, especially on a 420A.
Cons:
* Lag: Turbos take time to spool up, resulting in noticeable lag before power delivery.
* More complex: Turbocharged systems involve more components like intercoolers, piping, and control systems, increasing complexity.
* Potentially more maintenance: Turbos can require more maintenance and potentially have a shorter lifespan compared to superchargers.
Supercharger:
Pros:
* Instantaneous boost: Superchargers provide immediate power delivery with no lag.
* Simpler system: Superchargers have fewer components and a less complex system.
* Generally more reliable: Superchargers tend to be more reliable and have a longer lifespan.
Cons:
* Lower potential power output: Superchargers generally offer lower peak boost and power compared to turbos.
* Reduced fuel economy: Superchargers run constantly, increasing engine load and consuming more fuel.
* Higher initial cost: Superchargers are typically more expensive to purchase and install than turbos.
* More space-consuming: Superchargers can be larger and more difficult to fit in the engine bay, especially on the smaller 420A.
In conclusion:
* If you prioritize maximum power potential and fuel efficiency, a turbocharger is the better choice.
* If you want immediate power delivery, ease of installation, and higher reliability, a supercharger might be a better fit.
Ultimately, the best option depends on your specific needs and preferences. Research both options thoroughly, consider your budget, and consult with experienced mechanics to make an informed decision.