does the turbo have a the duel inlet manifold? as i was just thinking that the 2 lines could just be the same as.
that was my thought, so you could use the 3200 and 3800 speed switches in the ecu as is. also while i've beed playing i noted the oe map sensor reads up to 160kpa which is about 9psiI bet the 2 lines are for the "wing" action. Maybe there's a way to rig a rpm switch to some vacuum servos for that, but I'm not sure. Or maybe you can set the vanes to a permanent position, or use a completely different turbo without the variable vanes. Just throwing out ideas.