Jellybean Posted June 2, 2012 Share Posted June 2, 2012 I have the avcr apexi , it runs off the vacuum pipe at the top of the intake , closest to the firewall What is the vacuum pipe for , as it is just used for the defi and avcr feed , what was its orignal function ? I am also having issues reading boost, i just noticed the y join has a brass restriction ring in the avcr feed but none in the defi feed, the defi reads 1 bar roughly and the avcr 0.24 ; i presume i need to remove the brass plug? She did have a profec b greddy and was told they use them , else you get erratic boost Quote Link to comment Share on other sites More sharing options...
Jellybean Posted June 6, 2012 Author Share Posted June 6, 2012 Got to the bottom of the issue incase anybody reads this, removed the brass restriction plug from the Y joint , got some new Vacuum hose and a new boost pressure air filter; all is running at 1.2 bar But I would like to know the function of the Vacuum port it is running off on the Manifold, just the Defi and the boost controller runs off it ; should you still not retain its orginal OEM function? Quote Link to comment Share on other sites More sharing options...
mellonman Posted June 6, 2012 Share Posted June 6, 2012 http://mkivsupra.net/vbb/attachment.php?attachmentid=13939&d=1112558977 its the stock boost ref Quote Link to comment Share on other sites More sharing options...
Jellybean Posted June 6, 2012 Author Share Posted June 6, 2012 http://mkivsupra.net/vbb/attachment.php?attachmentid=13939&d=1112558977 its the stock boost ref Thank You! Quote Link to comment Share on other sites More sharing options...
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