top of page

Best Engine Cooling Upgrades for Your Vehicle

Updated: Jan 9

In tuned engines and vehicles that are driven hard, overheating can happen. Gaskets can fail, distort, and other serious problems can occur in an overheated engine.

  • Short power bursts often don't require additional cooling.

  • Track day cars and heavily modified cars will require engine cooling upgrades.

  • No changes to the cooling system should be required for minor tuning, such as remapping or intake and exhaust modifications.

If the engine overheats despite minor or no modifications, the issue is more likely to be a coolant blockage, a faulty thermostat, a malfunctioning water pump, an ignition timing error, or another technical issue.

Therefore, be sure your current system is functioning effectively and as you would expect given the conditions before you consider adding additional cooling methods. Under even moderate-heavy loads, a normal engine shouldn't overheat.

Major changes resulting in a significant boost in power could require additional cooling, but only to deal with the extra heat generated while using this higher power. You might not need to make any changes if you won't be using it for a long time.

engine cooling

Cooling Upgrades

The following are some of the many methods that can benefit with engine cooling.

Exhaust Wrap

The internal engine temperatures are not anticipated to be significantly affected by wrapping the exhaust. However, it considerably lowers engine bay temperatures and assists in the heat retention inside the exhaust.

An exhaust wrap made of titanium and fibreglass is recommended.

Heat Reflective Coatings

To further lower the risk of overheating, you can cover the fuel lines and intake pipes with heat reflecting tape. It is advised to use gold heat reflective tape.

Heat Shielding

Overall heat can be decreased by shielding the intake and fuel lines from the rest of the engine compartment. This lowers the temperatures of the fuel and intake air.

You can use any type of heat shielding, including heat shields built specifically for your vehicle or aluminium panels with unique shapes.

Increase Air Flow

The cooling system would be improved by opening the grill and bumper, which will increase airflow across the radiator and other heat exchangers.

To do this, either drill holes into the bumper or grill or swap them out for ones that flow more freely.

Install a Fan & Shroud

Install an electric fan if one isn't already installed, and if one is, consider upgrading it with a higher flow rate (fit this on the engine side of the radiator so it pulls cold air through the radiator).

Install a shroud around the fan to help pull air into the radiator efficiently. The fan improves efficiency and cooling by drawing all of the air through the radiator rather than just the air in front of the blades.

The fan will turn on earlier if you add a lower temperature sensor to your fan circuit, decreasing heat accumulation.

Reducing Antifreeze Content

Pure water conducts heat 60% more effectively than a 50/50 mixture and 140% more effectively than glycol. Nevertheless, don't forget to add additives, such as corrosion inhibitors, and antifreeze if it's cold.

Install an Electric Water Pump

Additionally, an electric water pump could increase the coolant's flow velocity throughout the engine, which would enhance performance.

Install an Oil Cooler