Toyota Tundra - Eaton TVS Supercharger

Bringing up needle-burying speeds and hooligan-esque antics like this was easily accomplished by smashing down on the accelerator pedal and unleashing the full fury of the TRD-modified V-8. This Tundra hit 60 mph in 4.4 seconds and blazed through the quarter-mile in 13.0 seconds at 106 mph.

Under the hood of the second generation Toyota Tundra is a very stout 5.7L, delivering out of the box numbers that are very competitive in the fullsize truck market. At the crank, the new Toyota powerplant delivers 381 horsepower backed by 401 lb-ft of torque. Those numbers are enough to propel the Tundra from 0-60 in 6.3 seconds, while scooting through the quarter-mile at 14.7 seconds. We know those numbers are good, but more power is what we want out of our trucks. Using TRD's warranty-backed supercharging system ($5,875), you can easily and quickly transform your Tundra into a sports car slayer. With post operation numbers of 504 horsepower and 551 lb-ft of torque, the TRD supercharger will change your mild mannered truck into a street-ready beast with minimal effort and a one-day install.

What do you have to lose? Nothing, because the TRD supercharger is 50-state compliant and completely covered under your truck's five-year or 60,000 mile warranty. To see this kit in action, we went to TRD's main facility near our Southern California offices for a complete rundown on what's lurking under the hood of a Tundra at a stoplight near you.

1. Externally, the supercharger is a unique design not normally seen when compared to other aftermarket systems. With the latest generation Eaton Twin Vortices System (TVS) roots-type rotor pack, its internals are exactly the top-of-the-line components we would expect from TRD. The twin four-lobe rotors feature a 160-degree twist, improving air handling, noise, and vibration characteristics for a smooth and linear application of power from the 81⁄2 psi they supply.
1. Externally, the supercharger is a unique design not normally seen when compared to othe
2. Since this kit is only sold and installed through Toyota's extensive network of dealers, the parts required to install the system had to be completely approved through Toyota of Japan before it could be released. The components are direct-fit items using all original mounting locations, and the extensive directions even show the installer exactly how to route all of the hoses under the hood.
2. Since this kit is only sold and installed through Toyota's extensive network of dealers
3. Unfortunately, the TRD supercharger kit does not work with every Tundra and Sequoia on the streets. It us up to the dealer to pull the ECU's embedded calibration ID before selling the kit to a possible customer.
3. Unfortunately, the TRD supercharger kit does not work with every Tundra and Sequoia on

4. Referencing the kit's information will tell the installer if the supercharger is approved for that particular vehicle and what new calibration will be necessary after the installation is completed.
4. Referencing the kit's information will tell the installer if the supercharger is approv
5. As is customary, the battery was disconnected and the factory air intake system was pulled free.
5. As is customary, the battery was disconnected and the factory air intake system was pul
6. On the left is the new TRD Intake Flow Accelerator. Compare it to the non bell-mouthed original intake tube on the right.
6. On the left is the new TRD Intake Flow Accelerator. Compare it to the non bell-mouthed

7. Removing the intake manifold was surprisingly easy as only the fuel rails, throttle body, and a couple hoses had to be disconnected prior to loosening the manifold bolts.
7. Removing the intake manifold was surprisingly easy as only the fuel rails, throttle bod
8. A number of steps had to be completed before the supercharger was set in place, so the intake passages on the heads were sealed with low tack tape to prevent possible contamination inside the engine.
8. A number of steps had to be completed before the supercharger was set in place, so the
9. The new coolant crossover was the first part to be installed between the cylinder heads. Its intake and exit ports were angled to allow clearance for the supercharger snout.
9. The new coolant crossover was the first part to be installed between the cylinder heads

10. Next on the list was this accessory belt pulley that was designed to allow more belt wrap around the supercharger's drive pulley and prevent slipping during higher throttle boost pressures.
10. Next on the list was this accessory belt pulley that was designed to allow more belt w
11. New intake runner O-rings were popped into machined grooves on the lower manifold in preparation for installing the supercharger.
11. New intake runner O-rings were popped into machined grooves on the lower manifold in p
12. TRD's supercharger, intercooler, and lower manifold assembly proved to be quite a hefty piece to attempt manhandling into place. To ease setting the unit onto the engine, a stamped steel hoist-mounting bracket was part of the kit. Once the supercharger was installed, the bracket was simply removed.
12. TRD's supercharger, intercooler, and lower manifold assembly proved to be quite a heft

13. The truck's original fuel rails were reused on the supercharger, but high-flow fuel injectors replaced the stock units to allow proper fueling under the kit's 81⁄2 psi of boost.
13. The truck's original fuel rails were reused on the supercharger, but high-flow fuel in
14. Boosted engines' cylinder pressures can result in detonation with the wrong spark plugs. The professionals at TRD know this well and supply lower heat range Iridium-tipped plugs for proper operation.
14. Boosted engines' cylinder pressures can result in detonation with the wrong spark plug
15. Removed earlier, the original throttle body was bolted back onto the supercharger's inlet.
15. Removed earlier, the original throttle body was bolted back onto the supercharger's in

16. This photo is a perfect example of how TRD's supercharger system maintains a factory appearance under the hood. This EGR hose ran up, across, and the around the supercharger manifold, using all factory mounting hardware and locations, exactly as it did on the stock manifold.
16. This photo is a perfect example of how TRD's supercharger system maintains a factory a
17. A high-flow, reusable air filter was set into the truck's airbox base.
18. The TRD monogrammed airbox lid may look similar to the original, but it is larger in displacement, as is the rubber intake tube, to allow the supercharger more air to gulp in and shove down the 5.7L's cylinders.
18. The TRD monogrammed airbox lid may look similar to the original, but it is larger in d

19. To allow installation of the Low Temperature Radiator for the air-to-water intercooler system, the TRD technicians had to remove the Tundra's bumper fascia.
19. To allow installation of the Low Temperature Radiator for the air-to-water intercooler
20. All the bolt locations for the LTR were original holes found on the upper and lower cross beams of the core support.
20. All the bolt locations for the LTR were original holes found on the upper and lower cr
21. Even the truck's grille and latch support became part of the LTR assembly.

22. The Bosch water pump for the intercooler system became the third leg of that same support with its flat plate mounting system stretching between two factory bolt holes.
22. The Bosch water pump for the intercooler system became the third leg of that same supp
23. TRD's coolant-reservoir tank was mounted off the side of the Tundra's radiator with a bracket designed specifically for that purpose.
23. TRD's coolant-reservoir tank was mounted off the side of the Tundra's radiator with a
24. Routing of the hoses from the supercharger base to the coolant reservoir and the Bosch pump were all covered in the directions, and were not subject to deviation for warranty reasons.
24. Routing of the hoses from the supercharger base to the coolant reservoir and the Bosch

25. Power for the coolant circulating pump was tapped from a switched lead located in the fuse and relay center.
25. Power for the coolant circulating pump was tapped from a switched lead located in the
26. Feeding the raging horses with air was only one part of the equation. The other was a fuel pump replacement that necessitated removing the fuel tank from the truck and swapping the original pump for its higher-rated TRD counterpart on the left.
26. Feeding the raging horses with air was only one part of the equation. The other was a
27. We received the green light to reconnect the battery power so the TRD technician could upload the new run file into the ECU, bringing this whole story to life.
27. We received the green light to reconnect the battery power so the TRD technician could

1301Tr 29 Toyota Tundra Airaid Cold Air Intake

28. The completed installation was made even more dramatic thanks to a custom cool-air intake from Airaid. Dyno numbers don't lie, and the after data was impressive. Before figures came in at 309 hp and 328 lb-ft to the tires. With the TRD supercharger, the 5.7L put down 452 hp and 508 lb-ft of torque. That's an incredible 143 rwhp increase! The Tundra was making more than 400 lb-ft of torque from 2,700 rpm all the way to redline—it pulled like a freight train.

SOURCE
Toyota Racing Development (TRD) 335 Baker St E Costa Mesa CA 92626 714-444-1187 www.trdusa.com	Airaid 2688 E Rose Garden Lane Phoenix AZ 85050 888-876-8984 www.airaid.com