#85621, "turn your EGR solenoid into a dual stage boost controller......"
i just thought id share with everyone my idea for a cheap dual stage boost controller...well sort of....get a egr solenoid (UFO looking thing) and i jb welded the little slots, and the saucer part so vacuum wasnt leaking...ill need to take a picture to show you...but anyways, the solenoid is normally open and when you add 12v to it, it shuts off air flow.... so stick a "T" before it, and after it...now get your MBC set at a higher boost setting and stick it between the other openings of the "T's"....so one vacuum line to T, T to solenoid and MBC, then back to T, then to wastegate....now hook up the solenoid to a switch in your car and kick it on when you want some more boost....works great in my car.....hope someone makes some use of this... doug
14b custom turbo kit, modified starion front mount, 9.6:1 JE pistons/Eagle rods....running 12psi screw flanders
#85643, "RE: turn your EGR solenoid into a dual stage boost controller......" In response to Reply # 6 May-05-05 04:48 PM by XtremeRS
I had a 2 stage boost control setup a while back consisting of a 12 volt solenoid and a MBC..used a rocker switch inside the car to go from low to high boost. It worked really well actually..and its really cheap to build. I even wired up a few LEDs in the car too where the power mirrow switch would go..A red LED for low boost, and a Green LED for high boost...green means go baby
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
#85922, "RE: turn your EGR solenoid into a dual stage boost controller......" In response to Reply # 11
Why would you require 2 solenoids for the dual stage?
You can just put the solenoid before the MBC and leave it normally open. This causes the wastegate to see the boost level at whatever the MBC is set at. If you then close the solenoid, it now has to travel through the path with a higher boost setting (either a second MBC, or whatever). This means you only require one solenoid instead of 2 and works just as good, since the second MBC won't open during low boost (the first one opens sooner!) it doesn't really require a solenoid (unless you're just using a bleeder, which I wouldn't understand using for your high power setting since you lose power with it anyways).
#85928, "RE: turn your EGR solenoid into a dual stage boost controller......" In response to Reply # 12
Originally posted by Ready4Dis Why would you require 2 solenoids for the dual stage? You can just put the solenoid before the MBC and leave it normally open. This causes the wastegate to see the boost level at whatever the MBC is set at. If you then close the solenoid, it now has to travel through the path with a higher boost setting (either a second MBC, or whatever). This means you only require one solenoid instead of 2 and works just as good, since the second MBC won't open during low boost (the first one opens sooner!) it doesn't really require a solenoid (unless you're just using a bleeder, which I wouldn't understand using for your high power setting since you lose power with it anyways).
YOu use 2 soleniods for a 3 stage controller. Low-Mid-High
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
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Dual Stage EBC: 
Dual Stage EBC: 
