Originally Posted by shuiend (Post 1441734)

Search for "NXS MANUAL BOOST CONTROLLER" on eBay and get that instead. I have been using his MBC's for years without issues.

Originally Posted by Art (Post 1441777)

It looks like they put enough thought and design into that one with the little vent hole that it's probably worth it to just buy that one from them.
The ball and spring MBC is fairly easy to piece together with a trip down the hardware isle. It functions like a second wastegate upstream in between your intake manifold source and wastegate port.

You can even mount the piece in the cabin with a wingnut or knob on it if you want to turn the boost down on the fly. This is not the same level of control as a dual port wastegate, electronic boost solenoid and ECU control, but a regular one port wastegate with a simple MBC like this is the cheapest simplest effective method of boost control which shouldn't be underestimated IMO. If you can get all the bells and whistles to work with EBC that is a definite advantage but this simple method absolutely works. By design it may help spool too but I haven't measured it.

Originally Posted by Braineack (Post 1442029)

I used to make one like that. they work fine.

Originally Posted by ByteVenom (Post 1442225)

Like the one I linked to, or the one created using pipe fittings?