$150FC

e-boost is like $570US. Too rich for my blood, but I still haven't decided how i'm going to control boost.

Marcel Burkett

Lets hope whatever you decide on is accurate and reliable enough to handle the chore or you'll be looking for a lot more than that.

scathcart

You can build a dual stage or multi-variable stage MBC for $30. Its not pretty, but it works.

surfpac

I'm making a dual stage MBC right now. All you need is a 3 way solenoid, which you can get off any RX7 engine, 2 ball and spring pressure relief valves, a Tee, and a switch to turn on solenoid. We're not talking rocket science here guys. Like Scathcart said
"You can build a dual stage or multi-variable stage MBC for $30. Its not pretty, but it works."

80-CU.IN.T

Spent $27.00 not including tee fittings or hose. High temp air regulator and a high temp solenoid I got for $12.00. I was lucky it listed for $110.

scathcart

EXactly. I was going to past a schematic once I finished "painting" it, but I guess there's no need.