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Toyota Tundra Supercharger Basics

Jul 12, 2008
Here's a quick look at the numbers for the new Toyota Tundra supercharger from TRD: it adds 504 HP and 550 lb-ft of torque; sells as a complete kit for $5 875; and costs about $6 800 total when installation is figured in, based on a labor rate of $105/hr.

The evolution towards the 5.7-liter TRD supercharger is truly intelligent design. TRD has developed horsepower/torque pushers for the 2000-03 Tundra, the V-6 Tacoma, the Camry Solara, the Scion tC and others. Tundra watchers knew it was only a matter of time before the wizards at TRD addressed the big '07 Tundra. Then, at the November 2007 Specialty Equipment Marketing Association (SEMA) show in Vegas, a concept Tundra Double Cab was spotted with a supercharger and air-to-liquid intercooler generating "approximately" 500 horsepower. Since the Toyota booth display vehicle was attached to a 10,200-pound gooseneck car hauler, the extra power had to be more than simply wishful thinking.

The new Tundra TRD supercharger is an Eaton-Roots-type, or positive displacement, supercharger. The patent dates back to 1860 when Philander and Francis Roots used the technology to ventilate mine shafts - an interesting tidbit to toss out at your next barbeque. When automakers were faced with upping performance by increasing engine size or engine efficiency, they opted for efficiency. The concept of a blower was incorporated into automotive engines in the early 1900s by Gottleib Daimler and by the 1920s, appeared in racecars and premium autos. Eaton-Roots type superchargers are reliable, nearly maintenance free, and eliminate drag on the engine when the boost is not required.

The Eaton's Twin Vortices System (TVS) is featured on the Tundra supercharger. It has twin four-lobe rotors with 160 degree twists, and improves air-handling while decreasing noise and vibration. The Tundra kit comes with 8 new high-flow fuel injectors, lower heat range iridium-tip spark plugs, and an intercooler, which reduces air inlet temperature to the engine and permits more aggressive ignition timing.

The supercharger's air supply comes from TRD's new high-performance air intake, which is similar to the cold air intake kit which TRD offers as a standalone art. When installing the supercharger, the engine control unit (ECU) is programmed with a new high performance engine management profile, which assists the Tundra in harnessing the supercharger's extra power while maintaining 50 state emissions certifications. It works by changing the engine's timing and the transmission's shift points to maximize power.

Toyota estimates that it will take around 9 hours to install the TRD supercharger on a Tundra truck, and promises to honor the remainder of their 5yr/60k mile powertrain warranty, so long as installation is done by your local Toyota dealer. Given the quality and strong reputation of TRD's engineering, and Toyota's promise to honor the full warranty, adding the TRD supercharger to your Tundra should definitely be a safe improvement to make.

There's just one catch - the TRD supercharger is only sold as a dealer-installed or over-the-counter option AFTER the sale of a new Tundra. The supercharger cannot be bought or added at the same time as you purchase a new Tundra, and it cannot be financed along with the truck. If you really want to buy your new Tundra with a supercharger, your local dealer can likely work something out, but it'll probably cost you some cash.
About the Author
The author Jason Lancaster is the editor of TundraHeadquarters.com, a website with information, news, and reviews of Toyota Tundra accessories and Tundra parts.
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