most hp outta a m30

[r4rabbitx]

what do you guys think is the most hp that can be squeezed out of a m30? who's pushing high hp numbers around here?

[turbodan]

Otis was doing 650 a while ago if I remember correctly. 

You can make more than you can handle. 

[M. Holtmeier]

Andrew Rippa made over 800 wheel with an m30b35 in an e34. 

[davidxo]

sure

[szacsi72]

Depends.
Stock engine? 400-500 (for how long? No idea),
Fully built I've seen 1140whp (Rob Karlsson)

[Chicagotrader92]

Random, but man I wish there were still full bolt-on kits for the E28's... I would love 300- 400 hp, but I would be in over my head trying to piece it together myself, let alone figure out tuning and fabricating an exhaust. 

[turbodan]

Fuel injection is the big obstacle. The only e28 that has plug and play capability with MS2 is the 88 528e. Everyone else has work to do.

I could make plumbing kits, the charge piping is pretty standard. Thing is that everyone has different preferences. I shit can the A/C system to make room for the air to air FMIC, for example. If you want to keep A/C, that changes everything. TCD used water to air intercooling to work around this but I prefer the simplicity of air to air.

[Nebraska_e28]

Random, but man I wish there were still full bolt-on kits for the E28's... I would love 300- 400 hp, but I would be in over my head trying to piece it together myself, let alone figure out tuning and fabricating an exhaust. 

It ain't too hard.  Research, plan, prep & then slowly execute over a realistic time line.  Perhaps you outsource the exhaust build.