I'm with Charles on this one. M30 always seemed like a great choice for a re-engine in an E30. Only trouble is weight, but if you got it mounted tight back against the firewall you'd be very close to preserving weight distribution.

The M30 has lots of torque and power. It's easy to care for and dead reliable. Mounted far back you get to keep the agility and desirable E30 dynamics. Looks like a great combo.

Enjoy!

Fusion