ben_harmer32 Posted July 14, 2016 Share Posted July 14, 2016 What size restrictor ring do I need for 0.9 bar? I currently have a 1.2 bar one but it spikes, so want to fit a smaller restrictor then raise pressure 1.2bar with a boost controller. Quote Link to comment Share on other sites More sharing options...
supra900bhp Posted July 14, 2016 Share Posted July 14, 2016 Think they come pretty much standard size but I am normally wrong lol have you asked Lee at srd? Quote Link to comment Share on other sites More sharing options...
fastcar Posted July 14, 2016 Share Posted July 14, 2016 A 2 inch one will should hold you at about 1bar of boost! Quote Link to comment Share on other sites More sharing options...
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