There is a better turbo option than the starion/conquest, and with much better aftermarket support. Another turbo engine made by Mitsubishi is the 2.0L found in the Eclipse. While the 2.6L can make a lot of power, it just can't compare to the numbers put down by the 2.0L turbo. 400HP is possible from a stock engine, and also quite reliable compared to the 2.6L. The 4g63 is the direct descendent of the 2.0L found in Mitsubishi trucks also known as the G63B. The 2.0L truck transmissions are not very strong though, only 2WD, and a different bolt pattern.

There is a light at the end of the tunnel however. The 4g63 has a brother engine the 4g64 2.4L found in late Mitsubishi trucks. The 4g64 replaced the aging G54B 2.6L engine, complete with matching bellhousings. The secret is that the 4g64 is nearly identical to the 4g63, in design and strength. The 4g63 turbo head is a straightforward swap onto the 4g64 block- timing components and all. The only requirements are custom rods and pistons, and oil squirters if you desire. If stock is not enough, there is a huge aftermarket that supplies the DSM (Mitsubishi Eclipse, Eagle Talon, Plymouth Laser) world.

Want more options? The 4g63 is capable of 9,000 RPM, but a destroked 4g64 with a 4g63 crankshaft is capable of 10,000+ RPM. Like the 4g63 but not the 4g64? The G63B did exist in a "wide block" form with a bellhousing that matched the G54B bellhousing, but in limited quantities. They can be found in 86-89 2.0L automatic pickups in the US, and 2.0L Starions in Japan and Australia through JDM importers. The bellhousing measures 13.25" across the lower bellhousing bolts compared to 12.25". Another thing to watch for is that all engines have 6 bolts holding the crankshaft to the flywheel, not 7. 6 bolt engines are stronger, and don't get crankwalk, a common problem found in 7 bolt engines. Want all the torque you can get? It is possible to stroke a G63B with a G64B/4G64 crankshaft to 2.3L, but a 7500 RPM rev limiter is a good idea.

A list of different Mitsubishi engines and where to find them.

Last edited by Meursault; 01/30/05 02:23 AM.