Koyo Radiator Cap - Keepin' It Cool

Koyo Radiator
High Pressure Radiator Cap
Using a high-pressure radiator cap in conjunction with aftermarket radiators can aid in your vehicle's cooling system by causing the coolant's boiling point to rise, increasing cooling efficiency. A number of companies offer caps with various pressures, such as this Koyo high pressure radiator cap, rated at 1.3 bar (kg/cm2) or 18.5 psi.
www.koyorad.com

Greddy
Radiator Cooling Panel
Cooling panels work simply by re-routing incoming air directly into the radiator, enabling more efficient flow and reducing temperature. GReddy Performance offers a wide variety of cooling panels in a variety of colors and materials, including aluminum, carbon fiber, and carbon/Kevlar.
www.greddy.com

Defi
Water Temp Meter/Alfit Adapter
Using an aftermarket water temp meter can help accurately monitor your engine's cooling system, as factory temperature gauges offer limited information when problems occur. The Defi Link Meter uses accurate stepping motor technology to provide precise readings, while the optional Alfit sensor adapter makes installation simple.
www.defi-shop.com

Thermo-Tec
Header Wrap/ High Heat Coating
Header wraps help increase exhaust savaging and horsepower, but also lower underhood temps, including heat deflection to the radiator. Thermo-Tec exhaust wraps withstand continuous heat-up to 2,000F-and are engineered from textured, silica-based fabric with a patented inorganic coating. Using the Thermo Tec Hi-Heat Coating spray and Snap Straps will protect the wrap from fraying and harmful liquid spills. Recently tested by 2NR, we found the Thermo-Tec wrap helped decrease coolant temperatures by a whopping 39.2 degrees Fahrenheit on our project STI when driving around town.
www.thermotec.com

Mishimoto
Aluminum Fan Shroud
Shrouds assist fans in channeling more air through a radiator, drawing out excess heat. Vehicles like the Nissan 240SX are notorious for overheating with their factory fan shrouds removed, even when replaced with a set of electric fans. Mishimoto has developed performance aluminum fan shroud kits that are direct OEM replacements and include two 10-inch electric fans (dependant on vehicle). The all-aluminum construction creates a lighter, more durable design than standard OEM shrouds.
www.mishimoto.com

Delta Current Control
Cooling Fan Controller
Installing an aftermarket radiator can often lead to an inconsistent factory temperature sensor that can trigger fans to run too cold or hot. Delta Current Control fan controller kit is a fully adjustable controller that monitors the coolant temperature and adjusts the speed of the fan in order to keep the temperature constant with no temperature cycling; a critical feature that prevents engine damage from rapid heat fluctuations.
www.dccontrol.com

Meziere Enterprises
External Water Pump Kit
The Meziere Enterprises water pump kit is designed to provide superior cooling, using a heavy-duty WP136 inline remote water pump and idler plate, which replaces the factory water pump. The Meziere kit is suitable for both street or race use and provides over 3,000 hours of life expectancy.
www.meziere.com

Samco
Radiator Hose
Standard radiator hoses are made with plies of polyester able to withstand a max temp of 356 degrees Fahrenheit, and can deteriorate from extreme coolant temperatures and chemicals. Samco Sport silicone hoses are individually hand crafted with an Aramid lining (for turbo applications), suitable for temperatures up to 482 degrees Fahrenheit.
www.samcosport.com

Seibon
Vented Hood
A vented hood is often an overlooked item when lowering engine temps during the hot summer months. Excessive heat can be effectively dissipated from your radiator using aftermarket hoods such as the Seibon carbon fiber RC-style unit ('04-'05 Subaru Impreza model pictured below), with its large vent opening placed directly above the radiator, allowing hot air to easily escape.
www.seiboncarbon.com

Carbing
Reservoir Tank
Engine coolant cavitations frequently occur during high-RPM load on the race track or drag strip, causing a car's water pump to create tiny air bubbles in the coolant, which decrease its ability to cool, leading to overheating and engine damage. The Carbing reservoir tank offers room for air expansion, reducing chances of overheating due to air-lock, and regulates temperature, keeping your coolant in check.
www.tein.com

Crucial Racing System
Low Temp Thermostat
Lower temperature thermostats can keep your engine running cooler, preventing heat-induced detonation. When an engine management system senses detonation, ignition timing is retarded and the engine loses power. Crucial Racing System's Coolsafe 160-degree thermostat operates at a lower temperature than factory, delivering an increase in cooling efficiency. Unique to the CRS thermostat's design and operation is its safety feature that fully locks the unit open (OEM units close when overheating) if the coolant runs dangerously hot or excessive air is present in the system. Testing the new thermostat in our Subaru project car resulted in lower coolant temperature by nearly ten degrees Fahrenheit, in blazing 107-degree temperatures.
www.crucialracing.com

Red Line Oil
Coolant Additive
Water offers twice the heat transfer properties compared to a mixture of 50/50 antifreeze/water in radiators, but can lead to internal engine corrosion when used as a 100-percent solution. Coolant additives like Red Line Water Wetter can be added to water or antifreeze/water to ward off corrosion, and improve the heat transfer of ethylene and propylene glycol systems, decreasing surface tension of water, and preventing heat, foaming and cavitations that can lead to gasket failure and cylinder head warping.
www.redlineoil.com

Derale
Cooling Fan
Factory radiator fans work great in keeping stock vehicles from overheating, but higher-horsepower cars demand an aftermarket cooling system that delivers more cooling power. Derale Performance has the perfect cooling solution for today's high-performance compact cars with their H.O. (high output) Single RAD Puller Fan, featuring a 265 watt motor delivering 2,200 CFM, a skewed-blade design, and injection molded shroud with pressure relief vents. Combine the H.O. puller fan with the optional Derale adjustable fan controller, and set turn-on temperature from 150 - 240 degrees.
www.derale.com

Yashio Factory
Digital Temp Meter
Digital meters are alternative choices to the typical sweeping needle gauges sold on the market today. Yashio Factory of Japan offers the Okachan water temp gauge, delivering water temp on an easy-to-read, peak hold digital display. The unit can also operate optional features such as warning light, buzzer, automatic fan activation by set temp, or the Okachan Water Sprayer (sold separately) through the incorporated relay.
www.yashiofactory.co.jp

Amsoil
Antifreeze
Choosing the right coolant for your engine can lead to a corrosion-free, rust-inhibiting system that can last for years on end. Amsoil antifreeze and coolant contains poly organic acid technology which eliminates the need for supplemental coolant additives, and is compatible with all ethylene and propylene antifreeze and coolant formulations on the market, including DEX-Cool, Sierra and Zerex.
www.amsoil.com