MC_Bob Posted May 6, 2012 Share Posted May 6, 2012 Picked up a car couple weeks back. 2JZ-GTE VVTI Spec as far as im aware from seller..! Double Decat Pipe. 3" Catback. Never mentioned were Restrictor rings or fuel pumps. Boost gauge reads circa .8bar, car feels progressive to drive, not a BPU feel. There arent any FCDs anywhere, so assuming the decat pipe is in place, should I be looking for a restrictor ring in the downpipe? I thought they were 1 bar minimums? Thanks! Link to comment Share on other sites More sharing options...
Hellstrom Posted May 6, 2012 Share Posted May 6, 2012 Well get under and see if it is really decatted. Restrictor ring Will not be needed unless you hit fuel cut aka smashing your head in the window during wot. Restrictor ring is used to avoid Boost Creap, and you dont seem to have à problem if you have stable 0.8bar Link to comment Share on other sites More sharing options...
MC_Bob Posted May 6, 2012 Author Share Posted May 6, 2012 Ah, I thought it was definately needed once decatted otherwise the boost would rise uncontrollably. I will get under there, thanks for the quick response!! Link to comment Share on other sites More sharing options...
Swampy442 Posted May 7, 2012 Share Posted May 7, 2012 Could have asked on ClubAristo As above if you have a double decat fitted then you'll probably have a ring fitted. Rings can be made in any size to correspond to any boost level you want. Link to comment Share on other sites More sharing options...
listy Posted May 7, 2012 Share Posted May 7, 2012 But if it has a boost controller fitted, does it need a ring? Just take the exhaust off and have a look mate. Easiest and surest way to find out Link to comment Share on other sites More sharing options...
Swampy442 Posted May 7, 2012 Share Posted May 7, 2012 Yes, cos as everyone knows, boost controllers can't lower the base boost level, only increase it Link to comment Share on other sites More sharing options...
D8MOA Posted May 7, 2012 Share Posted May 7, 2012 full decat fitted.. dont think vvti's need the restrictor ring as simler to the uk set up..... no fcd is fitted as its running stock boost.........all that car has is full exhaust and a hks filter Link to comment Share on other sites More sharing options...
MC_Bob Posted May 7, 2012 Author Share Posted May 7, 2012 Lol, I shall look at the first opputunity I get. I had a quick search on ClubAristo but got more results here.. Confuzzled about the VVTI not needing it. I suppose I better get googling some more.. Link to comment Share on other sites More sharing options...
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