Quote Originally Posted by AE86 Dorifto
I've heard a lot of things about both engines. I know alot about both because I'm a Toyota/Nissan fanatic. The rb26 (from what I've seen) can get more hp when built to the max but is extremly unstable at that point and will need extreme work after about two quarter-mile races. The 2jz (from what I've seen) can't get up to as much hp but when maxed out the engine stays strong and doesn't need as much work.
Highest hp 2jz I've seen: 1600 hp (aap). Highest hp rb26 I've seen: 2000 hp (some video on the internet).

kind of a dumb argument, sure.. they are both inline 6's and both are considered to be over-engineered motors. however the 2jzgte is without a doubt the stoutest of the both stock to stock. while the 2jz will never be able to match the rb26's power/liter capabilities, and the rb26 is considered to be the most successfully tuned motor in the world, the 2jzgte is superior as far as the build goes stock for stock. built wise its basically a toss up, but like said.. the rb26 is usually favored due to its ability to pump out more power per liter.

virtually any motor is stable when built and tuned correctly, but i'd have to say after 900whp+.. most motors would break things frequently and maintenance would be far more than religious.