TT Paul Posted July 12, 2010 Share Posted July 12, 2010 jspec tt bpu'd, stock ecu, walboro pump, ik24 plugs had car on dyno guy said it was over fueling, keeping the bhp and torque down? this was the print out i got, but what can i do to stop this was told a fuel pressure regulator would do and set up on a dyno?? any ideas thanks http://i784.photobucket.com/albums/yy123/wiggy1980/afr.jpg Quote Link to comment Share on other sites More sharing options...
johnny g Posted July 12, 2010 Share Posted July 12, 2010 fuelling at BPU isn't perfect. I'd get yourself and AEM FIC for a nice, cheap, efficient fix to that. Quote Link to comment Share on other sites More sharing options...
TT Paul Posted July 12, 2010 Author Share Posted July 12, 2010 hoping not to get a piggyback this yr, if its safe then i'll leave it but just need to find out whats best to do Quote Link to comment Share on other sites More sharing options...
johnny g Posted July 12, 2010 Share Posted July 12, 2010 What boost are you running? Quote Link to comment Share on other sites More sharing options...
Ian C Posted July 12, 2010 Share Posted July 12, 2010 All a fuel pressure regulator could do is drop the pressure and therefore cock up the fuelling across the entire rev/boost range apart from 4000+rpm at full boost Cocking about with fuel pressure to try and map a car should be consigned to the dustbin of history. I recently splatted up a post about BPU fuelling that helps understand what's going on: http://www.mkivsupra.net/vbb/showpost.php?p=2803685&postcount=13 Quote Link to comment Share on other sites More sharing options...
TT Paul Posted July 12, 2010 Author Share Posted July 12, 2010 right so if im reading right on your thread i need to increase boost to rectify?? so i'll get a boost controller has fcd fitted and runing about 1 bar Quote Link to comment Share on other sites More sharing options...
Ian C Posted July 12, 2010 Share Posted July 12, 2010 Well it'll go faster The upshot is, your car is fine as it is, you can run up to 1.2bar if you want to though. Quote Link to comment Share on other sites More sharing options...
TT Paul Posted July 12, 2010 Author Share Posted July 12, 2010 thanks for the help ian Quote Link to comment Share on other sites More sharing options...
G-NEMIE Posted July 14, 2010 Share Posted July 14, 2010 fuelling at BPU isn't perfect. I'd get yourself and AEM FIC for a nice, cheap, efficient fix to that. agree Quote Link to comment Share on other sites More sharing options...
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