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The quest for more horsepower in the Challenger has become a popular topic among car enthusiasts and performance tuners. However, increasing the power to 700+ hp comes with its own set of reliability considerations that must be addressed to ensure the vehicle remains functional and safe.
Understanding the Basics of Power Increases
Before diving into the reliability factors, it’s important to understand how power increases affect the overall performance of the Challenger. The stock engine and drivetrain are designed to handle a certain amount of power, and exceeding that limit can lead to various issues.
- Engine components may wear out faster.
- Transmission stress can lead to failure.
- Suspension systems may require upgrades.
Key Reliability Considerations
When considering an increase to 700+ hp, several key reliability factors should be taken into account:
- Engine Internals: Upgrading components such as pistons, rods, and crankshafts can provide the necessary strength to handle increased power.
- Cooling System: Enhanced cooling systems are critical to prevent overheating, especially under high-performance conditions.
- Fuel System: A high-flow fuel pump and injectors are essential to ensure the engine receives adequate fuel at higher power levels.
- Transmission Upgrades: Strengthening the transmission can prevent slippage and failure under increased torque.
- Drivetrain Components: Upgrading the differential and axles can help manage the increased power and prevent breakage.
Engine Internals and Their Importance
The engine is the heart of any performance vehicle. When increasing power, the internal components must be able to withstand the additional stress. Here’s what to consider:
- Pistons: High-performance pistons can handle higher compression ratios and stress.
- Connecting Rods: Stronger rods are necessary to handle the increased forces during combustion.
- Crankshaft: A forged crankshaft is often recommended for high-horsepower applications.
Enhancing the Cooling System
With more power comes more heat. Upgrading the cooling system is vital to maintain engine temperatures within safe limits. Consider the following:
- Radiator: A larger or more efficient radiator can help dissipate heat more effectively.
- Oil Coolers: Adding an oil cooler can prevent engine oil from reaching damaging temperatures.
- Thermostat: A lower temperature thermostat can help regulate engine temperature.
Fuel System Upgrades
As horsepower increases, so does the demand for fuel. Upgrading the fuel system is crucial to ensure that the engine receives the right amount of fuel:
- Fuel Pump: A high-flow fuel pump is essential for delivering the required fuel volume.
- Injectors: Larger fuel injectors can provide the necessary fuel flow to support increased power levels.
- Fuel Lines: Upgrading to larger fuel lines can reduce restrictions and improve flow.
Transmission and Drivetrain Considerations
The transmission and drivetrain are critical components that must be addressed when increasing power. Here are some considerations:
- Transmission Upgrades: Consider installing a performance transmission that can handle increased torque.
- Torque Converter: A high-performance torque converter can improve acceleration and responsiveness.
- Differential: Upgrading to a stronger differential can prevent failure under heavy loads.
- Axles: Reinforced axles are necessary to handle the additional stress from high horsepower.
Suspension and Handling Enhancements
Increased power can affect the handling of the Challenger. Upgrading suspension components can improve stability and control:
- Shocks and Struts: Performance shocks and struts can enhance handling and ride quality.
- Sway Bars: Upgraded sway bars can reduce body roll during cornering.
- Springs: Lowering springs can improve the center of gravity and handling.
Conclusion
Increasing the power of the Challenger to 700+ hp is an exciting venture, but it requires careful consideration of various reliability factors. By upgrading engine internals, cooling systems, fuel systems, transmissions, and suspension components, enthusiasts can enjoy the thrill of high horsepower while maintaining the reliability of their vehicles.