I have been wanting to ask this for sometime but I kept forgetting. On the boost solenoid there is 2 ports. One has vac lines coming from the turbo and the other one had nothing on it. I put a vac block off on the empty one. Should I keep it on or should I leave it open? I tried looking for it at gnttype.org but I couldn't find anything. Thanks.
Boost solenoid
- Thread starter blueta
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The boost actuator has a ~10lb spring. At ~10lbs of pressure, the actuator will begin to push the wastegate open and this regulates boost to ~10lbs.
In short, the solenoid "bleeds off" some of the boost pressure that would normally push on the wastegate actuator. The open port on the solenoid is where it bleeds off the air. This solenoid is computer controlled and in stock form bleeds ~3 to 4 lbs to make the stock 14 to 15 lbs of boost. Some aftermarket chips command more bleeding from the solenoid, and thus you get more boost.
In short, the solenoid "bleeds off" some of the boost pressure that would normally push on the wastegate actuator. The open port on the solenoid is where it bleeds off the air. This solenoid is computer controlled and in stock form bleeds ~3 to 4 lbs to make the stock 14 to 15 lbs of boost. Some aftermarket chips command more bleeding from the solenoid, and thus you get more boost.
Ok, so when I had it blocked off the actuator was opening at 10 with no bleed off from the solenoid? Is this why I was having trouble getting more boost with just tightening up the rod?
Edit: Now that I had the boost set with the rod with it capped will I get 4-5psi more that it's uncapped?
Edit: Now that I had the boost set with the rod with it capped will I get 4-5psi more that it's uncapped?
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