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The mkiv Supra Owners Club

Greddy profec e-01 boost controller


Steve

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Easiest way, put one end of a rubber pipe on the actuator inlet (the bottom one) and cap the other end of the pipe with a bolt or somesuch. The other hose, the one that used go to the actuator, blank that off in the same way. Connect the two hoses from the GReddy solenoid to the other side of the actuator and the turbo.

Sorted. :thumbs:

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My settings are

  • Set 55
  • Gain 10
  • StartTo 50
  • 1.20 bar max

 

Works great for me. YMMV depending on how restrictive your exhaust is, restrictor ring apeture, etc.

Mine sometimes peaks to 1.22 bar but I can live with that. I could probably play about with the settings and perfect it but I'm more than happy with it as it is.

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Because the boost pressure on mine kept creeping up.

On a couple of occasions it was hitting 1.7bar!

But most of the time it was at 1.3bar with the boost controller set to off.

 

Just been out for a spin with the actuator pipe (bottom pipe) blocked off and it seems to be ok so far. Didnt go over 1.1 bar.

 

Will test it tomorrow on the way to Chris Wilson's place. Nice motorway driving at 6.30 in the morning.

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If it was unblocked, wouldn't that be the same as having a wide open manual boost controller, i.e. the wastegate not opening because all the pressure is leaking away, leading to no actuator operation? Think thats likely to lead to damage! I could be wrong though, anyone tell me if I'm talking bollox? I really must understand this better some day.

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