TwinTurbo.NET: Nissan 300ZX forum - I don't know exactly how the haltech works
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Subject I don't know exactly how the haltech works
     
Posted by -Grimm- on July 01, 2014 at 10:20 AM
  This message has been viewed 196 times.
     
In Reply To for those with aftermarket boost solenoid posted by ouikikazz on July 01, 2014 at 09:40 AM
     
Message Considering the variations among boost controllers.

But looking at that diagram from Haltech:

Port 1: Normally Open
Port 2: Common
Port 3: Normally Closed

The way they have it plumbed:

Boost < Set Point: Wastegate connected to atmosphere/vacuum (closed)
Boost > Set Point: Wastegate connected to pressure (open)

The 'alternate' way you describe:

Boost < Set Point: Wastegate connected to vacuum (closed)
Boost > Set Point: Wastegate connected to atmosphere (closed)

Result of the latter: Infinite boost! which may sound good, but it isn't :)

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1992 300ZX NA 5 Sp (Dead)
1990 300ZX NA Auto 2+2 (Dead)
1990 300ZX TT 5 Sp (Building)
2004 G35 Sport 6MT (DD)

     
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