Cooling is an essential part of any MX-5 build. Heat is the enemy, and a car that gets hot makes less power. Read More...
BOFI Racing has a huge range of cooling parts and accessories for all Mazda MX-5s, from radiators and intercoolers to coolant reroutes and oil coolers. With everything you need to upgrade and improve your MX-5’s cooling, you can build a reliable endurance machine.
The first item to replace is the ageing radiator. As the header tank turns a green-ish brown it becomes a ticking time-bomb. An aluminium radiator provides better cooling thanks to its increased surface area and greater volume. Matched to a powerful fan and a new thermostat, your car will cool effectively both on and off track.
With a wide range of coolant hoses available, we have solutions to suit many different applications. Re-routes help circulate the coolant better, ensuring the block is cooled more evenly. Silicone radiator hoses replace ageing rubber that is prone to splitting and swelling. Lower radiator hoses make room for intercooler pipes where there usually is none.
Where more cooling performance is required for your MX-5, oil coolers keep the oil temperatures down, improving lubrication and reducing wear. Oil coolers increase the engine’s ability to shed heat, doing it through a dedicated core instead of relying on the car’s radiator to do all the work. Thermostatic oil coolers ensure that they do not cool the oil until it has reached the desired operating temperature.
Even the best coolers need to be ducted to ensure they work properly. Sealing all the gaps around each core directs all the air that enters the mouth through each, and not around them. Slam panels direct air through the radiator, increasing the system’s efficiency dramatically. Make use of weather stripping to seal any unwanted gaps and never pit due to overheating again.