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JusticeForPhat · 11-26-2003, 08:28 PM

thats a good question. Currently the VATN controller is setup through our haltech in a closed loop system. Basically the haltech measures pressure post turbo. It then interprets the map we have programmed in. At this point it then sends a signal to a solenoid valve that controls the VATN. This happens every few milliseconds.

Now currently im working on two projects with this. One is to implement one of the Haltech's spare inputs as a boost controller. Basically a little potentiometer that will change the trim a bit. The other project is a seperate computer altogether to control it. Based off a basic stamp it would perform the same function as the haltech but it would monitor for different settings. Essentially it would max out boost at low rpms for straight line drag racing so I can have a monster launch (fuck wheel spin, if we integrate it with our custom traction control system we are working on . . . . . ) and then limit boost to 12 - 15 psi. For most other conditions it would be wired to a new knock sensor we are developing.

In short, if you can dream up a situation that you would want to change the amount of boost / spool time, we can figure out some way to control it. I think this isnt too bad for an entire team of Mechanical Engineers. Not one EE in the group of 7.

Variable geometry turbos are becoming standard items in diesels. The controllability is mainly the reason.

11-26-2003, 08:28 PM	#18 (permalink)
JusticeForPhat Crazy Location: Philly	thats a good question. Currently the VATN controller is setup through our haltech in a closed loop system. Basically the haltech measures pressure post turbo. It then interprets the map we have programmed in. At this point it then sends a signal to a solenoid valve that controls the VATN. This happens every few milliseconds. Now currently im working on two projects with this. One is to implement one of the Haltech's spare inputs as a boost controller. Basically a little potentiometer that will change the trim a bit. The other project is a seperate computer altogether to control it. Based off a basic stamp it would perform the same function as the haltech but it would monitor for different settings. Essentially it would max out boost at low rpms for straight line drag racing so I can have a monster launch (fuck wheel spin, if we integrate it with our custom traction control system we are working on . . . . . ) and then limit boost to 12 - 15 psi. For most other conditions it would be wired to a new knock sensor we are developing. In short, if you can dream up a situation that you would want to change the amount of boost / spool time, we can figure out some way to control it. I think this isnt too bad for an entire team of Mechanical Engineers. Not one EE in the group of 7. Variable geometry turbos are becoming standard items in diesels. The controllability is mainly the reason. Last edited by JusticeForPhat; 11-26-2003 at 08:30 PM..