small_2zrfe.jpgThe upcoming replacement for the Toyota Corolla Altis here in Malaysia might see the introduction of a CVT transmission, thanks to a new pair of engine and transmission announced last month by Toyota as part of it’s efforts to revamp it’s gasoline engine and transmission line-up by the year 2010.

The new engine is the 1.8 litre 2ZR-FE, which replaces the 1ZZ-FE in Toyota’s line-up. The 2ZR-FE has a few enhancements over the 1ZZ-FE found in our current Toyota Corolla Altis. For one, the new 2ZR-FE has Dual VVT-i which varies valve timing optimally for various engine speeds and loads on both the intake and exhaust valves. The previous 1ZZ-FE only has variable valve timing on the exhaust valves. Maximum torque has increased from 170Nm at 4,200 rpm to 175Nm at 4,400 rpm. Horsepower has increased from 132hp at 6,000 rpm to 136hp at 6,600 rpm. Fuel efficiency is supposed to be 5% higher compared to conventional engines.

2ZR-FE (New) 1ZZ-FE (Old)
Displacement 1,797cc 1,794cc
Bore 80.5mm 79.0mm
Stroke 88.3mm 91.5mm
Compression Ratio 10.0:1 10.0:1
Weight 97 96

Note that our local Toyota Corolla Altis actually has abit more power and torque than the Japanese specifications thanks to differences like an increased compression ratio of 10.5:1 instead of 10.0:1. Our Toyota Corolla Altis 1ZZ-FE engine makes 136hp and 171Nm of torque, slightly higher than it’s Japanese counterpart.

Source