Supporting Mods for 650 Hp Ls Swap Z Car: Fuel System, Drivetrain, and Transmission Upgrades

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The LS engine swap into a Z car is a popular choice among car enthusiasts looking to achieve high performance. When aiming for 650 horsepower, it’s essential to ensure that the supporting modifications are in place for optimal performance and reliability. This article will cover the crucial upgrades needed for the fuel system, drivetrain, and transmission.

Fuel System Upgrades

To support a 650 HP LS engine, the fuel system must be upgraded significantly. The following components are essential:

  • Fuel Pump: A high-flow fuel pump is necessary to deliver adequate fuel to the engine. Look for pumps rated for at least 255 LPH.
  • Fuel Injectors: Upgrade to larger fuel injectors, ideally 80 lb/hr or more, to ensure proper fuel atomization and delivery.
  • Fuel Lines: Use -8 AN or larger fuel lines to minimize restrictions and ensure sufficient fuel flow.
  • Fuel Pressure Regulator: An adjustable fuel pressure regulator allows for fine-tuning of fuel delivery.
  • Return Line: Implement a return-style fuel system to maintain consistent fuel pressure.

These upgrades will ensure that the engine receives the necessary fuel to achieve and maintain 650 horsepower without running lean.

Drivetrain Upgrades

With increased horsepower comes the need for a robust drivetrain. The following upgrades are recommended:

  • Rear Differential: Upgrade to a limited-slip differential (LSD) to improve traction and handling under power.
  • Driveshaft: A high-strength aluminum or carbon fiber driveshaft will reduce weight and increase strength.
  • Axles: Consider upgrading to heavy-duty axles to handle the increased torque and prevent breakage.
  • Suspension: Upgrading the suspension with stiffer springs and performance shocks will help manage power delivery and improve handling.

These drivetrain upgrades are critical to ensure that the power from the LS engine is effectively transmitted to the wheels without compromising performance.

Transmission Upgrades

The transmission must be capable of handling the power and torque produced by a 650 HP LS engine. Here are the key upgrades:

  • Transmission Choice: Consider using a 4L80E or T56 transmission for their strength and reliability.
  • Torque Converter: A high-performance torque converter will improve throttle response and power transfer.
  • Transmission Cooler: An external transmission cooler will help maintain optimal temperatures during high-performance driving.
  • Shifter: An upgraded shifter will provide better engagement and quicker shifts.

These transmission upgrades are vital for maximizing performance and ensuring that the vehicle can handle the demands of a powerful LS engine.

Conclusion

In conclusion, supporting mods for a 650 HP LS swap in a Z car are crucial for achieving the desired performance and reliability. Upgrading the fuel system, drivetrain, and transmission will ensure that the vehicle can handle the power and provide an exhilarating driving experience. By investing in these key components, enthusiasts can enjoy the full potential of their LS swap Z car.