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im wondering what is the optimum pressure to run a gt3071r on an rb25det with forged internals slightly lower cr and tomei poncams? im purchasing an actuator for the turbo and wondering weather to get a 1.2 bar or 1.5 actuator:wavey:
 

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I have 2 :) Depends what you want to do with the car. If you want a low power option, then up the boost with a boost controller then go with the 1.2bar

If you want to max it out, go with the 1.5 as you'll need the stiffer spring to hold max boost
 
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