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3 port to EWG set up

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Old Apr 12, 2011 | 11:12 AM
  #1  
fknchristoph's Avatar
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From: SoCal 562
3 port to EWG set up

how would the 3 port lines go to the 2 lines on the EWG and still also connect to the compressor and intake?
Just trying to figure out why my car wont boost on the new turbo..
(yes i know its bad to try and boost on a new turbo [its used] without a tune but i noticed when i was limping home from my friends house i couldnt get a boost of even 4 pounds.

thanks
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Old Apr 12, 2011 | 11:20 AM
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From: Isanti, MN
What brand of solenoid is it? Perrin? GrimmSpeed? etc?
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Old Apr 12, 2011 | 11:24 AM
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From: Aurora, IL
https://www.evolutionm.net/forums/ev...-port-ewg.html

With that setup the normally connected line goes to the top of the EWG to push down the plunger and hold boost (helping the spring)... you can vent this line to the intake if you want instead. The line that starts moving air when your BCS starts actuating should ALWAYS go to the side port. This is what opens the wastegate by pushing up on the plunger.

If you can only get 4lbs it sounds like something else is amiss. Did you put the proper spring in the EWG?

EDIT: also, if you look on page 10 of the profec B spec II manual you can see another method that is less "dangerous" in the case of a failed solenoid (more similar to the factory system). In this setup you supply constant boost pressure to the side nipple with no solenoid in-between, then put the normally closed port on the 3 port to the top nipple. This way has the boost pressure opening the wastegate 100% of the time and as your solenoid starts to activate it pushes back with the same pressure against the top of the plunger which holds it closed and increases boost.

Last edited by fostytou; Apr 12, 2011 at 11:35 AM.
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