UPGRADED CAR HEAT EXCHANGERS IMPROVE SUPERCHARGER PERFORMANCEPosted on
ELIMINATE HEAT SOAK OF YOUR SUPERCHARGED CAR OR TRUCK. USE FOR RACING, TOWING, TRUCK, OFF-ROAD, AND GENERAL USE
THE GREAT POWER ROBBERY OF THE YEAR!
IS HEAT SOAK ROBBING YOU OF POWER YOU PAID FOR?
Look, the stock heat exchangers are very narrow, so they have a low duty cycle. They heat-soak rapidly, especially in hot climates or when you push the engine across its threshold of “normal use” and cooling ability.
Solution: Install an upgraded heat exchanger! One of those can increase the power of your supercharged car or truck by over 20% when you include the timing and fuel delivery reset.
Yes, you read correctly, twenty percent!
HERE IS WHY...
...OE manufacturers build their vehicles for "normal" use!
As a true enthusiast, you take your driving seriously. You know that hot laps around a racetrack, spirited driving, or repeated passes at the drag strip have nothing to do with “normal” driving.
There, the conditions can exceed your original equipment manufacturer’s heat exchanger’s duty cycle, and it becomes overwhelmed with the dreaded heat soak syndrome.
WHY SHOULD YOU INSTALL AN AUTOMOTIVE AIR-TO-WATER HEAT EXCHANGER ON YOUR SUPERCHARGED ENGINE?
NASCAR standout Smokey Yunick stated in his books: "Each ten degree of temperature reduction equals from one to two percent in horsepower increase."
Because replacing the inefficient factory heat exchanger in your car or truck with a modern one is the tried-and-true solution to increase intake cooling efficiency, torque, horsepower, and the duty-cycle of the cooler.
YOU ASKED HOW DOES AN UPGRADED HEAT EXCHANGER BOOST THE EFFICIENCY OF YOUR SUPERCHARGED MOTOR?
Automotive heat exchangers supply your engine with a denser oxygen-rich charge. The stock ones are just good enough for normal use. Manufacturers of upgraded units like AFCO and C&R Racing report three-and-a-half times greater efficiency over the stock ones.
As such, they can lower intake temperature up to 50° F over the stock units, and they carry a duty cycle several times higher than the OE units for repeatable performance.
YES, BUT HOW ARE THEY BUILT?
They are laser cut aluminum TIG-welded construction with NASCAR and Formula 1 technology. C&R Racing utilizes a technique known as “extruding” to manufacture its cooling tubes.
Extruded tubes contain internal partitions that cause the fluid to swirl inside the tubes and to lap the inside walls to increase heat dissipation. The partitions act as heat sinks and they increase the strength of the tubes and they offer nearly double the heat transfer ability over standard designs.
AFCO’s major contribution to intake charge cooling stems from its triple width in conjunction with a double pass design. The double-pass design was developed in professional racing with teams in NASCAR and INDY Car for all their cooling needs.
AFCO Racing and C&R’s units do not contain any plastic or epoxy like the stock ones. Both manufacturers utilize full aluminum, TIG-welded construction for their upgraded heat exchangers for maximum heat dispersion and strength.
MAJOR BENEFITS FOR YOUR SUPERCHARGED ENGINES INCLUDE:
- Aftermarket performance upgraded heat exchangers cool 350% better than the stock variants.
- Higher intake air charge and oxygen content for higher HP and torque increase power, responsiveness, and torque.
- Drastically improved duty cycle yields repeatable, reliable power.
- Direct bolt-in using factory bolts and hoses, saves time and money.
- Improve ETs and lap times! You can win.
- Minimizes heat soak and reduces timing retard and fuel enrichment for reliable and improved power.
- Prevents engines from going into limp mode: safety and reliability.
HOW DOES AN AIR-TO-WATER AUTOMOTIVE HEAT EXCHANGER SYSTEM WORK?
The heat exchanger unit is only a part of a collection of components that combine to form a cooling system for the compressed intake charge.
THE SYSTEM IS COMPOSED OF THREE SECTIONS
Upstream, a pump circulates the warm water from a tank, which is independent of the engine cooling system to the heat exchanger.
Midstream, the coolant passes through the heat exchanger.
Downstream, the now cooled water flows to the intake plenum located just above the compressor rotors, which contains the intercooler.
Through the intercooler, the intake air disperses the excess heat it gathered during the compression process, and the now-hot water returns to the tank.
Upgraded heat exchangers can repeat this cycle (duty cycle) numerous times without overheating.
TO WHAT EXTENT IS AN UPGRADED HEAT EXCHANGER NECESSARY?
LAWSUIT UNDERSCORES THE URGENCY FOR ADDITIONAL COOLING IN HIGH PERFORMANCE CARS AND TRUCKS.
Now, hear this!
This lawsuit demonstrates how manufacturers build their cars for "normal" driving, but when pushed beyond their design envelope, heat can cause undesirable effects like sending the engine in “limp mode.” Limp mode cuts the engine's speed, and slows the vehicle to a snail's pace, potentially putting drivers and passengers "at risk of crash and injury."
WHY DOES TEMPERATURE AFFECT POWER?
Heat is Power. Heat Kills Power. Heat is a Double-Edged Sword.
Superchargers are compressors, and they increase the mass of air that the engine can ingest. The higher the temperature delta between intake and combustion, the higher the power the engine can make.
Theoretically, when you increase intake pressure by 1 PSI you increase power by 7 percent...but, there is a price to pay!As pressure increases, with temperature constant, density increases. Conversely, when temperature increases, with pressure constant, density decreases.
Compressing a gas increases the amount of oxygen it contains, but compressing a gas increases its temperature and reduces its density. The higher the temperature delta between intake and combustion, the higher the power the engine can make.
Superchargers are compressors. Charles' Law dictates that the pressure of a gas is directly proportional to its temperature. As such, if we increase the pressure of the air intake, we also increase the temperature by a proportionate amount.
For our purpose where ambient temperature averages around 70 degrees F, we can assume that every 10 degrees of temperature change impart a power change of one to two percent.
NOTE: Charles' Law is more complicated than can be detailed here. For the full formula link to https://en.wikipedia.org/wiki/Charles%27s_law.
WHERE CAN I BUY MY UPGRADED HEAT EXCHANGER?
You can purchase upgraded heat exchangers from American manufacturers like C&R Racing and AFCO Racing through APPLIEDSPEED.COM for racing, towing, street performance, off-roading, and more.
The supercharger heat exchangers for Mustangs, Camaros, LS Swaps. Cadillac CTS-Vs, Ford F150s, Corvettes, and many others can improve the power of your ride by up to 20% with a bonus of maintaining the ignition timing and the fuel delivery optimal by halting the dreaded heat soak problem. Many models come with Spal fans and complete wiring, thermostats, and controls for a user-friendly plug-and-play experience.
ATTENTION PERFORMANCE ENTHUSIASTS!
Beware of copy-cat, imported knock-offs, and even counterfeit units whose manufacturers disregard all best practices. Those are often peddled on eBay and by sketchy overseas websites.
EASE OF INSTALLATION
For complete upgraded heat-exchanger installation instructions for cars and trucks see these AFCO and C&R links: