Dodge Challenger, Charger, and Chrysler 300 V8s with K&N Blackhawk Induction System Get Real HP
- May 11, 2016
Production of the first gen-3 Hemi engine began in June 2002, reviving a name and a design concept that has had three lives so far. The first was in the 1950s when almost every version of Chrysler vehicle, including DeSoto, Dodge, and Plymouth, had their own version of the engine (though none used the Hemi name, which Chrysler later trademarked). The second generation was intended to be solely a race engine for NASCAR, but then NASCAR got wise and told all the automakers that any engines they entered had to be available on production cars. Thus the street Hemi legend was born. By 1971, inability to meet emissions requirements and its rather thirsty fuel requirements ended the reign of gen-2.
The first 5.7 liter third generation Hemi produced up to 350 horsepower at 5,600 rpm and 375 lb-ft of torque at 4,400 rpm — which is one horsepower per cubic inch, just like the Hemis of the 1950s. The second version of the 5.7 Gen 3 rose to 390 horsepower and 407 lb-ft of torque in the Dodge Ram — 375 horsepower in the 2009 Dodge Challenger R/T (with manual transmission) though power varied by the vehicle in which the motor was installed. Now K&N helps give these engines a boost in horsepower thanks to the 71-1542 Blackhawk Induction air intake system. The generation 3 cast iron block has a hefty deep-skirt design, with a crankshaft supported by four bolts per main bearing (two vertical, two horizontal). The heads are aluminum, while the intake manifold is molded from plastic for reduced weight and increased airflow. The combustion chamber features two spark plugs – just like the top fuel engines based on the gen-2 Hemi. Chrysler made various revisions to the 5.7L for the 2009 model year. The first for all applications is what Chrysler calls Variable Camshaft Timing or VCT. VCT uses an oil control valve which either advances or retards camshaft timing. Other upgrades include higher compression ratio pistons, cylinder heads that offered better airflow, and an active intake manifold that switches from long runners to short runners by moving a flapper door, emphasizing torque at low engine speeds shifting to delivering horsepower as engine speeds increase. The Hemi was also available in a 6.1L version for SRT-8 applications. The engine block is different from the 5.7L, with revised coolant channels and oil jets to cool the pistons. A forged crankshaft, lighter pistons, and strengthened connecting rods provide the ability to rev higher and longer. A cast aluminum intake manifold is tuned for high-RPM power and does not include variable-length technology. This engine produces 425 hp at 6200 rpm. Both the 5.7L and 6.1L Hemi are great engines, however, they are no Hellcat. You can make up a little of the horsepower difference with the 71-1542 K&N Blackhawk performance cold air intake kit. The replacement air induction system boosts horsepower and acceleration to your 5.7L or 6.1L Hemi. In fact, K&N’s own dyno testing has demonstrated an estimated 14.13 hp on a 2014 5.7L Dodge Challenger. This is possible because the low restriction air intake allows your engine to breathe easier than it can from the OEM air intake. More air means more power and acceleration. One of the features of this Blackhawk induction system is that it includes black components including a K&N high-flow synthetic air filter and powder coated heat shield. The air intake tube is a textured black powder-coated tube featuring an engraved K&N logo for a clean look. The intake tube has accommodations for the inlet air temperature sensor and crank case vent hose. The oversized cone filter of the 71-1542 system is made of non-oiled synthetic filter media. This type of construction not only allows for increased airflow, but at the same time offers excellent filtration characteristics to ensure long engine life. Often OEM and less-expensive filters are made from more restrictive paper media. Each design is verified through K&N’s dedicated filtration testing lab, which adheres to ISO 5011 standards, ensuring that K&N filters provide high airflow while maintaining excellent engine protection. And once you’ve installed your K&N filter, you’ve eliminated the need to buy another air filter for the life of your vehicle. The only maintenance is a service you can do yourself easily in your driveway. The filter only needs to be serviced at intervals of 100,000 miles under normal highway driving conditions, by using the K&N Air Filter Cleaning Kit. Your one K&N air filter is designed to last for the lifetime of your vehicle, which K&N guarantees will perform for up to 10 years or 1,000,000 miles without requiring replacement. For full details visit the K&N Million Mile Limited Warranty. You can order the filter or the 99-5000 cleaning kit by searching vehicle search tool. You can also find a local retailer by checking out our dealer locator tool. The 71-1542 system fits the following vehicles: You can view all the air intakes that K&N makes for these vehicels at the Air Intake Systems for the Dodge Charger, Air Intake Systems for the Dodge Magnum and Air Intake Systems for the Chrysler 300C pages. You can also view all the air filters that K&N makes for thse vehicles at the Air Filters for the Dodge Charger, Air Filters for the Dodge Magnum and Air Filters for the Chrysler 300C pages. You can view all the K&N performance products for any vehicle by using the Search by Vehicle tool and you can find a local K&N retailer by plugging your location into the K&N Dealer Search as well. |
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