Mitsubishi 4G15 engine reliability, problems and repair For the first time, this engine was installed in 1989 in the Mitsubishi Mirage, where it replaced the old G15B engine. This engine uses the same 4G13 cylinder block, its height is 201 mm, but they increased the cylinder bore from 71 mm to 75.5 mm.
What is the compression ratio of a 4G15 engine?
The compression ratio of such an engine is 9.2; either a carburetor fuel system or a single-point fuel injection are used here. The power of a 12 valve 4G15 SOHC is 90 HP at 6,000 rpm, the torque of 122 Nm at 3,000 rpm.
How much HP does a 4G15 DOHC engine have?
Such 4G15 DOHC showed 110 HP at 6,000 rpm and the torque of 137 Nm at 3,000 rpm. From 1998 to 2002 a modification with direct fuel injection was produced, which was called 4G15 GDI. This allowed obtaining 100 HP at 6,000 rpm and the torque of 140 Nm at 3,000 rpm.
How many miles is too many for a 4G18 engine?
This is a common problem for an old engine with the mileage over 120,000 miles, and for 4G18 even 60,000+ miles is enough. In such cases, the piston rings are replaced and the engine is used on, but it is not reliable and not for a long time. A good overhaul is better.
How much horsepower does a mirage 4G15 have?
The SOHC 4G15 displaces 1.5 L (1,468 cc) with a bore and stroke of 75.5 mm × 82 mm (2.97 in × 3.23 in). A version of the 4G15 was produced with gasoline multi-port fuel injection. It has approximately 94 hp (70 kW) on the 1993 Mirage model.
Is the Mitsubishi Colt 4G15T still in production?
A DOHC MIVEC turbo variant of the engine is also still in production to date (4G15T), serving in the Mitsubishi Colt series, offering 163 hp (122 kW) on the latest Colt Version-R (with exhaust enhancement).
