Rather soop up a 4Y, than go with the 22R, the guys around here have better results with the 4Y when doing performance mods!
The wikipedia data on the 22R:
22R
The 2-valve SOHC 2.4 L (2366 cc) 22R was produced from 1981 through 1995.
Cylinder bore was 91.9 mm (3.62 in) and stroke was 88.9 mm (3.5 in).
Initial output was 97 hp (72 kW) at 4800 rpm and 129 ft·lbf (174 N·m) at 2800 rpm.
By 1990 the 22R was producing 108 hp (81 kW) at 5000 rpm and 138 ft·lbf (187 N·m) at 3400 rpm.
The first fuel injected 22R-E engines appeared in 1983.
Output of these engines is commonly rated at 105 hp (78 kW) at 4800 rpm and 137 ft·lbf (185 N·m) at 2800 rpm.
In 1985, the engine was significantly reworked, output was up to 112 hp (84 kW) at 4600 rpm and 142 ft·lbf (192 N·m) at 3400 rpm. Many parts from the newer 22R-E are not compatible with those from the older pre-1985 engine. Non-compatible parts include the cylinder head, block, pistons and many of the associated parts such as the timing chain and cover, and water and oil pumps (although the oil pump internals are the same).
Toyota swapped the dual row timing chain used in older engines for a single row chain with plastic guides in 1983. This system reduced drag on the engine, but was inherently problematic. Every 80,000 to 140,000 miles, the chain stretches to the point that the hydraulic-operated chain tensioner can not take up any more slack. When this happens, the timing chain impacts driver's side chain guide, breaking the plastic within a few hundred miles of driving. If the engine continues to be operated after the guide breaks, the chain will stretch rapidly (an unfortunate characteristic of single row chains.) The loose chain causes inaccurate ignition timing which usually results in noticeable rough running. It may also rub a hole in the soft aluminum timing cover, resulting in engine coolant being forced into the oil sump and ultimately destroying the engine. In continued operation the chain can jump a tooth on the drive sprocket or break entirely, with either case resulting in engine damage from valve-piston collisions.
The turbocharged 22R-TE (sold from late 1985 through 1988) produced 135 hp (101 kW) at 4800 rpm and 173 ft·lbf (234 N·m) at 2800 rpm.
However, its weakness is high-end power. Thus, most performance enthusiasts usually prefer the Toyota 18R-G, 2T-G, 4A-GE and 3S-GE 4-cylinder engines, The 22R has a bigger displacement and a strong block, but its comparatively long stroke limits its use in high revving applications.
The engines are extremely well known for their durability, high fuel efficiency and good low to mid range torque.
Code Power kW (HP) Torque N·m (ft·lbf) Years Comments
22R 72 (97) at 4800 rpm 174 (129) & 2800 rpm 1981–1990 carb, dual row timing chain ('81-'82)
carb, single row timing chain ('83-'90)
22R 81 (108) at 5000 rpm 187 (138) & 3400 rpm 1990–1995
22R-E 78 (105) at 4800 rpm 185 (137) & 2800 rpm 1983–1984 EFI, single row timing chain
22R-E 84 (112) at 4600 rpm 192 (142) & 3400 rpm 1985–1995 EFI, single row timing chain
22R-TE 101 (135) at 4800 rpm 234 (173) & 2800 rpm 1986–1988 turbocharged, single row timing chain
Applications:
22R
1981 Toyota Corona
1981-1988 Toyota Hilux
1981-1984 Toyota Celica
1981-1995 Toyota Pickup
1984 Toyota 4Runner
22R-E
1985-1995 Toyota Hilux
1983-1985 Toyota Celica
1985-1995 Toyota Pickup
1985-1995 Toyota 4Runner
22R-TE
late 1985-1988 Toyota Hilux, 135 hp (101 kW)
1987 Toyota 4Runner
B
