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FOZ Racing Products Aluminum Mazda Radiator is designed to be a drop in replacement for the stock radiator found on a 1990 through 1997 Miata.  The radiator is built from the highest quality Delphi core and is hand welded to maximize its strength.

FOZ Racing Products Introduces Miata Aluminum Racing Radiator 

Whether you’ve built a Spec Miata or are pushing the limits of your Miata in autocross competition, you’ve probably noticed that your stock radiator is not up to the task of cooling your engine.  While OEM radiators are fine for everyday driving, they are not capable of cooling under the extreme conditions found in auto racing.  A good aluminum racing radiator is the answer. 

Understanding the Hard Facts
OEM Radiators are designed to merely get the job of cooling done under normal street operation at the lowest cost.  Forget about cooling under the stresses created during race conditions or by an engine that has been modified to produce more horsepower.  The harder an engine is pushed or the more horsepower it produces, the more heat it creates.  As engine temperatures continue to rise, performance eventually begins to suffer.  Ultimately these elevated temperatures place the engine at risk of serious damage.  Overheating is a leading cause of DNFs (Did Not Finish) in auto racing. 

How It Works
Unused heat is removed from an engine through the coolant that flows through jackets in the block.  The radiators primary job is to dissipate heat from the coolant as it leaves the block so that it can be re-circulated through the block to remove heat once more.   

Why an Aluminum Racing Radiator
There are two primary sources of cooling or heat dissipation within a radiator.  They are tubes and fins.  Tubing is the primary source of heat dissipation, while fins are the secondary source of heat dissipation.  Since tubing is much more expensive than the fins, most OEM manufacturers have chosen to increase the number of fins in order to reduce the amount of costly tubing required.  A good aluminum racing radiator does just the opposite.  The amount of tubing is significantly increased, while the number of fins is decreased so that the radiator becomes much more effective at dissipating heat.

A secondary effect of the higher fin concentration found in OEM radiators is that there is less room for dirt, debris and rubber to pass through.  In essence the radiator actually becomes clogged over time, restricting the airflow that is so critical to the cooling process.  The lower fin count found in a good aluminum racing radiator creates more space for the increased amount of dirt and debris found at a racetrack to pass through so that airflow is maximized. 

Strength and weight savings are final benefits of a good aluminum racing radiator.  A radiator tanks that have been welded to the tubing is much better equipped for the rigors of racing than a radiator


An aluminum radiator (right) uses wider tubes, compared to a standard OEM radiator (left).  The wider tubes create a much larger surface for cooling.

where the tanks are affixed with epoxy or brazed to the tubing.  The lower fin counts and materials used in an aluminum racing radiator also make it much lighter than a stock or OEM style radiator. 

FOZ Race Products recently introduced a new Aluminum Racing Radiator for Miata performance enthusiasts whether they chase their passion on the street or in one of NASA or SCCA’s Spec Miata classes.  The radiator is designed to be an easy replacement for the stock/OEM radiator found in a 1990 through 1997 Miata.  The radiator even comes standard with the tabs and brackets required to mount the stock fan assembly.  For more information visit www.speedpartz.com. or call 513.874.2034 

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The fins on an aluminum racing radiator (see bottom picture) are also typically further apart which allows the increased dirt and debris inherent to racing to pass through more easily, instead of clogging the fins and restricting air flow.  (Top picture is a standard OEM radiator)
 
FOZ Aluminu Racing Radiators are manufactured for all forms of motorsports including mini sprints, modified midgets, micro sprints, dwarf cars, modified lites, tq midgets, sprint cars, midgets, shifter karts Formula Ford, Formula 2000, SCCA Road Racing, Spec Miata, NASA,  ATVs, Formula SAE, SAE Mini Baja and many more.  Additionally, we've custom manufactured aluminum radiators for performance street cars including Honda, Ferraris and Porsches.  Call us with your specific requirements, we're ready to help.