Engine Cooling Systems - Buyer's Guide to Engine Cooling Parts

WHO: Mackin Industries
WHAT: ARC water pump pulley
WHIPS: 240SX, 350Z, RX-8, Skyline
WALLET: $135-up
WHERE: www.mackinindustries.com; 562.946.6820
The water pump pulley kit from ARC improves pumping characteristics of the stock water pump, allowing for an increased volume of flow throughout the cooling system.

WHO: Design Engineering
WHAT: Radiator Relief
WHIPS: Yours
WALLET: $17
WHERE: www.designengineering.com; 800.264.9472
Radiator Relief from Design Engineering allows radiators to transfer heat more efficiently, reducing operating temperatures up to 30 degrees F as well as engine warm-up time.

WHO: Hy-Per Lube
WHAT: Super Coolant
WHIPS: Yours
WALLET: $9
WHERE: www.hyperlube.com; 888.275.0015
Hy-per Lube Super Coolant lowers the surface tension of the coolant, allowing it to deeply penetrate the metal surfaces at vital heat transfer areas. This reduces operating temps by 6-8 degrees in 50/50 glycol water systems and up to 20 degrees in water-only applications.

WHO: Buddy Club USA
WHAT: Racing Spec fan switch
WHIPS: Honda
WALLET: $45
WHERE: www.buddyclub.us; 909.923.9188
Buddy Club's Racing Spec plug-and-play fan switch activates your cooling fan at 80 degrees C instead of the stock 93 degrees for better cooling and efficiency.

WHO: Earl's Performance Products
WHAT: Oil thermostat
WHIPS: Yours
WALLET: $90-up
WHERE: www.earlsplumbing.com; 310.609.1602
Made for racers, dyno testing, or cold environments, Earl's oil thermostat controls flow, allowing the oil to warm up to 160 degrees F before opening. The thermostat also has three sensor ports allowing for multiple oil monitoring outputs.

WHO: Red Line Oil
WHAT: Water Wetter
WHIPS: Yours
WALLET: $9
WHERE: www.redlineoil.com; 800.624.7598
Red Line Oil's Water Wetter Supercoolant is a unique liquid product that provides rust and corrosion protection in plain water for racing or street engines and promotes better heat transfer properties (as much as 20 degrees F ) than glycol-based antifreeze.

WHO: Cosworth
WHAT: Performance Engineered Coolant
WHIPS: Yours
WALLET: $10
WHERE: www.liquidcosworth.com; 800.355.5880
Cosworth Performance Engineered Coolant provides corrosion protection and extends water pump life, does not form a heat barrier like traditional coolants, and maximizes pure water to bare metal heat transfer.

WHO: HKS
WHAT: Fan Controller
WHIPS: Yours
WALLET: $205
WHERE: www.hksusa.com; 310.491.3300
The HKS Fan Controller has been developed to activate factory or aftermarket electronic cooling fans at user-preset temperature levels. It also features real-time water temperature monitoring (Celsius or Fahrenheit), peak hold, and temperature warning.

WHO: Superior Nissan Motorsports
WHAT: Nismo thermostat
WHIPS: 240SX, 300Z,Maxima, Altima, Sentra, NX2000, 200SX
WALLET: $51-up
WHERE: www.superiornissanmotorsports.com; 626.965.5060
The low temperature Nismo thermostat opens at 62 degrees C, versus OEM units that open at 76.5 degrees C. Allowing coolant to circulate sooner than the stock unit allows results in greater efficiency and prevents problems caused by overheating.