I doubt they would warrant a whole engine past 60K (or 120K) when they add a TC. But I thought that if you had the TRD TC installed it did not effect the warranty for the rest of your engine/drivetrain ect ( install at 20K warranty still good to 60K)... That is supposed to be the point of the TRD idea, designed for the car to Toyota's standards and so it doesn't negatively effect reliability / warranty.
OK from the source .... Toyota TRD website
Power with Confidence
When installed by a Toyota dealer, the TRD truck supercharger warranty works seamlessly with your Toyota new vehicle warranty. If installed by a Toyota dealer on a vehicle with any of its new vehicle power train warranty remaining, you will receive either 12 months, unlimited mileage from the date of installation or the remainder of the new vehicle power train warranty, whichever is longer. Units installed by do-it-yourselfers have a 12-month, unlimited mileage warranty. All warranties require that the system is not modified, abused, used in any type of motor sports activity or installed in any application for which it is not intended.
.....also from the same site
Superchargers may be purchased and installed from any Toyota dealer, nationwide. When installed by a Toyota dealer, TRD Supercharger systems are warranted for the remainder of the vehicle’s Toyota Powertrain Warranty.
Not quite as clear as I thought it would be. But Sounds like if it goes on before the drivetain warranty expires the warranty on both goes to 6yrs/60K if installed by a dealer. After 60K or if installed DIY TC only is warranted for 12 months unlimited mileage.
Interesting FAQ on the TRD TC site....
Q: My supercharger makes a moderately loud noise under full throttle or sometimes may rattle at idle. Is this normal for a supercharger?
A: Yes. The pumping action of a supercharger compressing air is impossible without some noise. Additionally, a slight rattle at idle is normal, but is will sharply decrease at 400-500 RPM above idle if the unit is properly installed. Please contact TRD for additional details.
Q: Does the supercharger reduce the life of the engine?
A: TRD has conducted hundreds of hours of continuous full-throttle dynamometer testing to measure the supercharger’s effect on engine life. After these tests, TRD was able to conclude that the supercharger does not reduce engine life, as there was no noticeable additional wear on the engine’s critical parts, such as pistons, rings, valves and bearings.
Q: How does the supercharger impact fuel economy?
A: Overall fuel economy largely depends on the driver, and there is no escaping the laws
of physics. An increase in power requires a nearly proportional increase in fuel consumption. Bottom line. An engine producing 250hp uses more fuel than one producing 190hp.
Q: Will my truck require any additional maintenance after a supercharger is installed?
A: TRD recommends changing the oil inside the supercharger unit after 100,000 miles. Other than that, the normal factory recommended maintenance schedule should be followed.
Q: What type of testing has been done to assure the long-term reliability of engines equipped with the TRD Supercharger?
A: All engines were subjected to an extensive engine dynamometer durability test involving 240 hours at wide-open throttle at a variety of speeds (RPM). No additional engine wear or failures occurred.
Unfortunately the web site did not list a TC for the 2UZ-FE just the 1FZ.
