Guest mk47 Posted November 6, 2006 Share Posted November 6, 2006 but have used the restrictor ring and not getting anything over 10psi boost so im thinking should i completely remove the ring or shall i drill some holes in it and try again? anyone else had this problem? Quote Link to comment Share on other sites More sharing options...
DannyW Posted November 6, 2006 Share Posted November 6, 2006 Sounds good to me, now just get a boost controller to raise the boost up to where u want it. Quote Link to comment Share on other sites More sharing options...
Marty Posted November 6, 2006 Share Posted November 6, 2006 Sounds to me like you have a boost leak maybe mate? could be your blow off valve passing Quote Link to comment Share on other sites More sharing options...
Jezz Posted November 6, 2006 Share Posted November 6, 2006 Sounds good to me, now just get a boost controller to raise the boost up to where u want it. Shouldnt need to on a j-spec car. Once de-catted, the restrictor ring is there to keep boost levels in check. Anything over 1.2 bar/17 psi is suicidal for j-spec tubbies. Now Maz is fully de-catted he should be seeing somewhere near 16-17psi after 4500rpm. Sounds like somethings not right. Should see 10psi on number 1 turbo alone. Quote Link to comment Share on other sites More sharing options...
Jake Posted November 6, 2006 Share Posted November 6, 2006 Take the restrictor plate out and see what boost you get then. Obviously, be carefull if it goes too high though. Quote Link to comment Share on other sites More sharing options...
DannyW Posted November 6, 2006 Share Posted November 6, 2006 Shouldnt need to on a j-spec car. Once de-catted, the restrictor ring is there to keep boost levels in check. Anything over 1.2 bar/17 psi is suicidal for j-spec tubbies. Now Maz is fully de-catted he should be seeing somewhere near 16-17psi after 4500rpm. Sounds like somethings not right. Should see 10psi on number 1 turbo alone. Restrictor too restrictive then you think? Quote Link to comment Share on other sites More sharing options...
Guest mk47 Posted November 6, 2006 Share Posted November 6, 2006 Restrictor too restrictive then you think? i think thats the case as the diameter of the hole in the ring is about 1.7inches, but im just paranoid that if i take it out and overboost the turbos may blow etc. Quote Link to comment Share on other sites More sharing options...
Jezz Posted November 6, 2006 Share Posted November 6, 2006 Restrictor too restrictive then you think? I think it could be yeah. I know you usually have to do a bit of fettling with the ring to get the desired boost levels, but 6-7 psi is a lot of boost to be losing through the ring being to restrictive. I would've thought 2-3 psi max. Quote Link to comment Share on other sites More sharing options...
Jezz Posted November 6, 2006 Share Posted November 6, 2006 i think thats the case as the diameter of the hole in the ring is about 1.7inches, but im just paranoid that if i take it out and overboost the turbos may blow etc. Bring it over mate. I'll have a look for you? Quote Link to comment Share on other sites More sharing options...
Guest mk47 Posted November 6, 2006 Share Posted November 6, 2006 Bring it over mate. I'll have a look for you? nice one i can do on wednesday if your free? Quote Link to comment Share on other sites More sharing options...
Jezz Posted November 6, 2006 Share Posted November 6, 2006 nice one i can do on wednesday if your free? I'm at home all day wednesday. But i guess Harborough's closer for you anyway? Quote Link to comment Share on other sites More sharing options...
Guest mk47 Posted November 6, 2006 Share Posted November 6, 2006 I'm at home all day wednesday. But i guess Harborough's closer for you anyway? think so yeah. whichever you like let me know times and all that as im free all day from uni then. ofcourse thtas if your not busy with the boyfriend etc.. Quote Link to comment Share on other sites More sharing options...
Jezz Posted November 6, 2006 Share Posted November 6, 2006 think so yeah. whichever you like let me know times and all that as im free all day from uni then. ofcourse thtas if your not busy with the boyfriend etc.. Na. Busy with this...... Quote Link to comment Share on other sites More sharing options...
Guest mk47 Posted November 6, 2006 Share Posted November 6, 2006 only joking. let me know if you have any time spare to check it out and ill drive down. think your less than 20 mins ish from here any how. edit to say.. ahh she looks lovely Quote Link to comment Share on other sites More sharing options...
supRo Posted November 7, 2006 Share Posted November 7, 2006 Don't wory too much about sudden boost hikes when you are mucking about with restrictor rings. Maybe enlarge the hole a bit at a time and see how you go. As all cars are different a 1.2 bar restrictor ring for example maybe ok on one car but give more or less boost on another car. Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted November 7, 2006 Share Posted November 7, 2006 sounds silly but have you tried resetting your ECU if you have taken it for a 30min+ drive dont worry as it wont make any difference? if this does'nt solve the problem I would suggest a leak somewhere along the line....check all your IC connections and BOV pipes Quote Link to comment Share on other sites More sharing options...
Stonkin Posted November 7, 2006 Share Posted November 7, 2006 I wouldnt say its a leak mate. I'm bpu, but when i had it on surrey rolling road near the beginning of the year it was only making 1.0 bar of boost. So you can either make the whole bigger in the ring or try removing it toally. There have been a few j-spec cars that havent needed a ring. The trouble with making it bigger is that as the weather gets colder it will make more boost which could be dangerous. Your safer having a lower base line of boost (perhaps for daily driving) and use a boost controller to up it to 1.2 bar when you want some fun. More than likely it will run 1.2 without the boost controller in very cold weather anyway. Or, it is always possible you have a leak Christian Quote Link to comment Share on other sites More sharing options...
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