Looks very interesting mate. There seems to be a lot of good DIY projects on that site - im just too damn tite to pay the subscription though. Mind you if they have a design for a 5th injector controller I might pay!
as for making a boost controller,, what you do is pipe a pressure regulator in the line with the top pipe (spring side) of a dual part actuator! pipe the other side just too the compressor,, what you are doing is altering the preload of the wastegate
Hmm so that regulator is like the thing you get on a air compressor to adjust the output pressure to a preset level?.
So are 2 port actuators something that you can buy?, could you just weld another port on a normal one on the rod side??? (might leak a bit!
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What if you just replaced the amal with one of these, i.e. no air would flow until the preset pressure and then flow would increase with pressure?, surely this would bring the boost up quicker than a conventional bleed or amal which will bleed off a proportional amount of air air at all pressures?.