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  • Dinan D780-0001A High Performance Heat Exchanger - 2015-2021 Bmw M2/M3/M4
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High-Performance-Heat-Exchanger---2015-2021-Bmw-M2M3M4
High-Performance-Heat-Exchanger---2015-2021-Bmw-M2M3M4
High-Performance-Heat-Exchanger---2015-2021-Bmw-M2M3M4
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Dinan D780-0001A High Performance Heat Exchanger - 2015-2021 Bmw M2/M3/M4

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Dinan D780-0001A High Performance Heat Exchanger - 2015-2021 Bmw M2/M3/M4
Details

Heat is the enemy of performance. Keep temps down and performance will go up as a result of increased efficiency. It's really as simple as that.

Specifications:

Description_EXT F80/F82/F83/F87
Description_DES Dinan High Performance Heat Exchanger - 2015-2021 BMW M2/M3/M4
Description_MKT Heat is the enemy of performance. Keep temps down and performance will go up as a result of increased efficiency. It's really as simple as that.
Description_MKT In stock trim, testing made it painfully obvious that cooling was going to hold an even more vital role on the F8x (S55) platform to achieve maximum results. The stock cooling system heat soaks after only 3 pulls and allows the engine air intake temperatures (IAT) to rise dangerously. The ECU must then reduce engine power to prevent detonation. With the Dinan high-performance heat exchanger the vehicle does not heat soak even after 7 pulls; more than twice the effectiveness of a stock setup!
Description_MKT Some may ask why change the heat exchanger and not the intercooler itself? Wouldn't it be more beneficial to go directly to the source of the charge air? The simple answer is yes, but at a cost. The stock system cools the intake charge by using a water-to-air intercooler, an expensive piece to engineer. The cooling circuit for the water that feeds the intercooler uses a primary cooler (heat exchanger) and a smaller secondary cooler in front of the passenger side wheel. Through rigorous testing of all 3 of those components and multiple combinations therein, it was discovered that the most effective performance per dollar solution was replacing the heat exchanger with a larger unit.
Description_MKT Further testing focused on the heat exchanger produced the optimized design you see before you. With 60% more volume and 19% more face area than stock along with being a whopping 40mm thick (stock is 24mm), it becomes quickly apparent how heat soak is averted with the improved setup. While the unit could be physically thicker the 40mm dimension was ultimately chosen with consideration of airflow requirements of the main radiator which is located directly behind the heat exchanger. A thicker core would diminish airflow and sacrifice normal engine cooling which would be potentially detrimental to the long term health of the engine. The increased physical stature of the heat exchanger allows a reduction in water temperatures to the intercooler an average of 9 degrees across the RPM range. The colder water entering the intercooler then improves is efficiency and allows the intake air to be cooled by an additional 6 degrees average across the RPM range compared to the stock unit. The reduction in intake air results in an impressive 10 HP and 20 ft-lb of torque gain without any changes in the engine tune.
Description_INV S55 HIGH PERF HEAT EXCHANGER K
Description_FAB More Power: Consistent +10 HP / +20 LB-FT of torque on the stock engine tune
Description_FAB 60% more core volume & 19% more face area than stock
Description_FAB 40mm thick Dinan cooler vs. 24mm thick stock cooler
Description_FAB 9 degrees average water termperature reduction to the intercooler across the RPM range. Colder water improves intercooler efficiency and allows the intake air to be cooled by an additional 6 degrees average across the RPM range compared to stock
Description_FAB Significant reduction in tendency to heat soak
Description_FAB Rubber mounted for vibration isolation
Description_FAB Track tested to ensure consistent performance under extreme conditions
Brand Dinan
Dinan Point Value 2
Emission Code 1, 5, 7
Height 9
Labor Time (Hours) 3.5
Length 29
Max HP Gain 10
Max Torque (lb-ft) Gain 20
Product Type Heat Exchanger
Weight 14
Width 17
Length 7.6000
Width 20.7000
Height 30.5000
Weight 16.5000
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