James Posted July 30, 2009 Share Posted July 30, 2009 Getting a bit of an issue (only sometimes) coming onto boost. Now I don't know if it's due to variance in my amount of applied throttle and the first turbo taking the time to spool through and then 2nd to do the same or not. Basically, sometimes it'll be totally fine and pull fully right through the rev range but, at other times, it seems to hesitate and stay at the same pace for a second or 2 then come in ultra harsh and launch something rotten! First port of call IS a problem - I don't have a boost gauge as yet so I don't know if it's spiking at these times or not. Spec is BPU with the exception of 1st decat. Got an Envy 1.2 restrictor ring, Blitz BOV, Greddy 2 row FMIC, FCD, SLD, not sure what plugs (told Iridium of sorts, will have to check with previous owner), RSR exhaust (also need to check through rest of the system as it may just be the backbox so don't know rest of the system + size etc.). Any help appreciated, had a quick search and saw a few different things but just checking Quote Link to comment Share on other sites More sharing options...
SupraShaun Posted July 30, 2009 Share Posted July 30, 2009 Could be plugs, have you read this? http://www.mkivsupra.net/vbb/showthread.php?t=35931 Quote Link to comment Share on other sites More sharing options...
James Posted July 30, 2009 Author Share Posted July 30, 2009 "2b - Spark plug gap not small enough - usually occurs on a BPU car with stock plugs, this causes a more gentle misfire where you feel acceleration fade and reappear at high boost." This is most like what it is. Guess that's what to check first! Quote Link to comment Share on other sites More sharing options...
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