2010 Toyota Tundra 4.6L V8 Engine Review - Four Wheeler
We've always felt the new Toyota Tundra is a solid pickup truck, big enough and strong enough for heavy jobs in the real world. It's now possible to get a full-size pickup truck that can do 21 mpg on the highway from Ford and GM, although you have to order a narrowly specialized 4x2 package to do it. For the average 1/2-ton, 19 or 20 mpg on the highway has become the new... Enter the newest Tundra engine, the 4. 6-liter V-8. It delivers more horsepower and more torque than the prior 4. 7 V-8, and it has a six-speed transmission behind it to help the 2010 Toyota Tundra get much better mileage. Performance-wise, it's clear that the 4. 6 V-8 is no 5. 7, but nothing is, and it's certainly a much more advanced engine than the older 4. 7 V-8. According to Toyota, the 4. 6 will deliver the best combination of power and fuel economy among any... Dual VVT-i controls valve timing and overlap on both the intake and exhaust valves. The older 4. 7 V-8 had an earlier version of Variable Valve Timing (VVT), which allowed for advancing or retarding the timing of the intake valves only. Dual VVT-i allows for controlling both intake and exhaust valves, in effect creating a more elastic variable cam profile. Source: www.fourwheeler.com
