When did the Toyota 20R engine come out?

When did the Toyota 20R engine come out?

Introduced in 1975 in the Celica, Corona, and Half-ton Pickup, the 20R engine used a semi-hemispherical head design for optimal fuel-burning and power generation at high rpm; it was however designed to meet and beat emissions standards as well, without the power-sapping add-ons other manufacturers were resorting to.

How big is the clutch on a Toyota 20R?

The 20R was coupled to a five-speed or four-speed synchromesh manual transmission, depending on model, or (again, depending on model) a three-speed automatic. The clutch diameter was 8.8 inches regardless (only Corolla and Land Cruiser got different clutch sizes in 1975; neither used the 20R).

Which is better Toyota 18R or 20R engine?

Toyota claimed more usable power than with the 18R, because maximum torque was achieved at about 55 mph in fourth gear (which was a function of both engine and gearing); and claimed that the 20R was simpler, more durable, and easier to maintain than the 18R.

What kind of fuel pump does a Toyota 20R use?

Externally, the 20R used an electric fuel pump (still unusual at the time) for steady fuel delivery and to avoid vapor lock. The two-barrel downdraft carburetor had a coolant-driven automatic choke, for more even operation.

Introduced in 1975 in the Celica, Corona, and Half-ton Pickup, the 20R engine used a semi-hemispherical head design for optimal fuel-burning and power generation at high rpm; it was however designed to meet and beat emissions standards as well, without the power-sapping add-ons other manufacturers were resorting to.

The 20R was coupled to a five-speed or four-speed synchromesh manual transmission, depending on model, or (again, depending on model) a three-speed automatic. The clutch diameter was 8.8 inches regardless (only Corolla and Land Cruiser got different clutch sizes in 1975; neither used the 20R).

Toyota claimed more usable power than with the 18R, because maximum torque was achieved at about 55 mph in fourth gear (which was a function of both engine and gearing); and claimed that the 20R was simpler, more durable, and easier to maintain than the 18R.

Externally, the 20R used an electric fuel pump (still unusual at the time) for steady fuel delivery and to avoid vapor lock. The two-barrel downdraft carburetor had a coolant-driven automatic choke, for more even operation.