Dim Sum Posted September 23, 2011 Share Posted September 23, 2011 I was reading the following thread http://www.mkivsupra.net/vbb/showthread.php?94705-BPU-(Basic-Performance-Upgrade) After reading this part : UK/Euro/US (Export) spec: To raise boost beyond the stock level the restrictive catalytic converters are removed, thus allowing the turbos to spin faster and produce more boost pressure. Different to the jspec, the export spec has a larger wastegate which can handle the increase in exhaust gasses. Therefore boost pressure will be maintained at only slightly above stock levels, typically 0.85bar (12.3psi). In order to raise this further it is necessary to install a Boost controller to change the way in which the wastegate opens. A restrictor ring is not required on the export spec I have a UK engine and turbos fitted in a Jap import, so should i remove the restrictor ring ? or leave it on? Quote Link to comment Share on other sites More sharing options...
drift_bear Posted September 23, 2011 Share Posted September 23, 2011 IIRC a uk engine and turbo setup dosnt need a RR, if yours has 1 fitted already its upto you if you leave it on or not tbh. Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted September 23, 2011 Share Posted September 23, 2011 IIRC a uk engine and turbo setup dosnt need a RR, if yours has 1 fitted already its upto you if you leave it on or not tbh. Ditto. Not required. Quote Link to comment Share on other sites More sharing options...
hodge Posted September 23, 2011 Share Posted September 23, 2011 As above, not required. Get a boost controller and turn that boost up. Quote Link to comment Share on other sites More sharing options...
Scott Posted September 23, 2011 Share Posted September 23, 2011 There's your problem right there bud No restrictor ring required on your setup. Remember to drop the gain before taking it for a run Quote Link to comment Share on other sites More sharing options...
The Raven Posted September 23, 2011 Share Posted September 23, 2011 As above, not required. Get a boost controller and turn that boost up. I dont know why but that made me laugh. Get a boost controller and turn that boost up!!!! Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted September 23, 2011 Author Share Posted September 23, 2011 There's your problem right there bud No restrictor ring required on your setup. Remember to drop the gain before taking it for a run Will do mate. Glad i use the search button on the forum lol. I will remove the restrictor ring tomorrow and see the difference myself Quote Link to comment Share on other sites More sharing options...
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