Today’s high performance vehicles pack a lot of power in a
smaller package. In order to save both weight and space, the
typical OEM cooling system is designed for “normal” driving
conditions. When driven hard for extended periods, the cooling
system may prove less than adequate. Earl’s offers the
solution to marginal cooling systems—race proven lightweight
and efficient oil coolers designed to fit in the smallest
practical space.
Any performance vehicle can benefit from the TEMP-A-CURE™ difference. Tow vehicles, motor homes, passenger cars and
motorcycles can realise extended engine and/or transmission
efficiency and life with an Earl’s TEMP-A-CURE™oil
cooler.
Racing cars have always required oil coolers. Since World
War II, most racing cars, world wide, have utilized brazed
aluminum “modular” oil coolers. The basic design of the
modular oil cooler dates back to the early 1930s when it was
developed for use with the Rolls Royce Merlin engine that
powered the Spitfires and Hurricanes that won the Battle of
Britain. This type of cooler with its internal turbulator plates
and dense air fins provides maximum liquid side and air side
surface area. The large collector tanks ensure minimum flow
restriction. The fully brazed construction results in the most
efficient possible thermal transfer path between liquid and
air. All of this adds up to the most thermally efficient liquid to-
air heat exchanger available.
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WIDE |
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Part Number |
Description |
Height | Face Width | Fitting Centres | Body Width | Thickness |
40700 | 7 Row Oil Cooler Core - Wide Grey | 2" | 9" | 9-3/4" | 13" | 2" |
41000 | 10 Row Oil Cooler Core - Wide Grey | 3" | 9" | 9-3/4" | 13" | 2" |
41300 | 13 Row Oil Cooler Core - Wide Grey | 4" | 9" | 9-3/4" | 13" | 2" |
41600 | 16 Row Oil Cooler Core - Wide Grey | 5" | 9" | 9-3/4" | 13" | 2" |
41900 | 19 Row Oil Cooler Core - Wide Grey | 5-7"8 | 9" | 9-3/4" | 13" | 2" |
42500 | 25 Row Oil Cooler Core - Wide Grey | 7-3/4" | 9" | 9-3/4" | 13" | 2" |
43400 | 34 Row Oil Cooler Core - Wide Grey | 10-1/2" | 9" | 9-3/4" | 13" | 2" |
44200 | 42 Row Oil Cooler Core - Wide Grey | 13" | 9" | 9-3/4" | 13" | 2" |
45000 | 50 Row Oil Cooler Core - Wide Grey | 15-1/2" | 9" | 9-3/4" | 13" | 2" |
46000 | 60 Row Oil Cooler Core - Wide Grey | 18-1/2" | 9" | 9-3/4" | 13" | 2" |
EXTRA-WIDE |
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Part Number |
Description |
Height | Face Width | Fitting Centres | Body Width | Thickness |
80700 | 7 Row Oil Cooler Core - Xwide Grey | 2" | 11" | 12-1/8" | 14" | 2" |
81000 | 10 Row Oil Cooler Core - Xwide Grey | 3" | 11" | 12-1/8" | 14" | 2" |
81300 | 13 Row Oil Cooler Core - Xwide Grey | 4" | 11" | 12-1/8" | 14" | 2" |
81600 | 16 Row Oil Cooler Core - Xwide Grey | 5" | 11" | 12-1/8" | 14" | 2" |
81900 | 19 Row Oil Cooler Core - Xwide Grey | 5-7/8" | 11" | 12-1/8" | 14" | 2" |
82500 | 25 Row Oil Cooler Core - Xwide Grey | 7-3/4" | 11" | 12-1/8" | 14" | 2" |
83400 | 34 Row Oil Cooler Core - Xwide Grey | 10-1/2" | 11" | 12-1/8" | 14" | 2" |
84200 | 42 Row Oil Cooler Core - Xwide Grey | 13" | 11" | 12-1/8" | 14" | 2" |
85000 | 50 Row Oil Cooler Core - Xwide Grey | 15-1/2" | 11" | 12-1/8" | 14" | 2" |
86000 | 60 Row Oil Cooler Core - Xwide Grey | 18-1/2" | 11" | 12-1/8" | 14" | 2" |
TEMP-A-CURE™ Coolers are manufactured with
removable, interchangeable fittings that feature a
contoured port side with an O-ring seal for worry
free performance.Available in AN and BSP sizes.
Cooler Adapters
Part No | Thread | Port Size |
585106 | -6 | -10 |
585108 | -8 | -10 |
585110 | -10 | -10 |
585112 | -12 | -10 |
5851GEC | 3/8” BSP | -10 |
585FAD | ½” BSP | -10 |
EARL’S TEMP-A-CURE™ OIL COOLERS OFFER THE FOLLOWING ADVANTAGES:
- Manufactured in the U.S.A. from aircraft spec
aluminum alloy, using the latest vacuum brazing
technology.
- Corrugated screen internal turbulator plates increase
both thermal efficiency and mechanical strength
resulting in the most efficient, smallest and lightest
practical package (typically half the size of traditional
tube & fin cooler).
- Manufactured from thin aluminum plates for fastest
possible heat transfer.
- Inlet and outlet fittings seal with an o-ring to the top
plate assembly for worry free performance.
- Designed for the range of oil flows and air speeds
encountered in high performance automobiles.
- Available in three widths with inlet and outlet fittings,
male AN -6 to -16
- Every cooler is pressure checked to 175 psi.
Periodic samples are burst tested to 350 psi
EARL’S DESIGN For many years, professional racers have been using modular style oil coolers almost exclusively. Virtually every Formula One, Indy and GTP or Trans-Am car depends on these type units for engine and transaxle cooling. Temp-A-Cure™ coolers have been developed specifically for use in all types of engines and transmissions subjected to temperature extremes, including competition and high performance uses. They are designed for the range of air speeds and oil flows normally encountered in automotive use, but built to aircraft standards of quality. They are constructed of high grade aluminum and are completely furnace brazed to insure the most thermally efficient joint possible between the oil tubes and air fins. The internal design of the oil tubes and the large area collector tanks provide maximum surface area with minimum pressure drop. The highly concentrated air fins offer maximum heat transfer to the outside air. |
TYPICAL TUBE & FIN DESIGN |
AIR VELOCITY: THE CRITICAL FACTOR IN HEAT DISSIPATION | |
EARL’S TEMP-A-CURE OIL COOLERS are designed to efficiently use
all of the air that passes through them. The center chart below shows
that a Temp-A-Cure cooler of comparable size is between two and three times more efficient in terms of heat rejection as a typical tube and fin type cooler. (“B”) Cooler “A” in our chart below is of a popular stamped dish plate design; where the dish plates are the only components—no fins and no corrugated screen. This design, while extremely attractive to the manufacturer, sacrifices efficiency of heat transfer for ease of assembly. The right hand chart below represents testing to determine pressure drop. It shows that the Temp-A-Cure cooler can handle a larger volume of oil (four times the volume!) with less than half the pressure drop of a typical tube and fin style oil cooler. |
Earl’s Temp-A-Cure oil coolers are properly termed “air to liquid heat exchangers”. In order to operate efficiently, they must be mounted in a stream of moving air at ambient temperature. It is not a good idea to mount the oil cooler behind the water radiator where it will receive only heated air. It is not enough to lead air to the cooler—the heated air must have somewhere to go after it passes through the core. Remember, air always obeys the immutable laws of fluid dynamics. Simply put, air will only flow from a region of relatively high pressure to a region of relatively low pressure. Any attempt on our part to convince it to do otherwise is doomed to failure. |