craig l Posted May 11, 2007 Share Posted May 11, 2007 hey guys my jspecs bpu with a 1.1 bar rr im getting a fmic and apexi bc fitted sunday, i want to remove rr before i get it done so i can run 1.2bar when its done. problem is i need to drive about 40 miles to get the job done, so will the turbos overboost or it cause any other problems even if i take it easy driving through cheers Link to comment Share on other sites More sharing options...
jamesmark Posted May 11, 2007 Share Posted May 11, 2007 You must have a restrictor ring in with J-spec turbos. You can get a 1.2 bar RR, I have heard of a few people that run with no RR but it is if lady luck is on you're side. You will more than likely boost over 1.2 bar with no ring in place drasticly reducing the life of your turbos. Link to comment Share on other sites More sharing options...
Class One Posted May 11, 2007 Share Posted May 11, 2007 Boost surpringsly can be controlled by the use of your right foot. So running a short distance taking it easy and keeping an eye on your boost gauge should see you allright. If you can keep it under 3.6k-4krpm and there shouldn't be a prob, as tubby 1 won't overboost afaik. Link to comment Share on other sites More sharing options...
jamesmark Posted May 11, 2007 Share Posted May 11, 2007 AHHHHHH I get it now lol, do you still not need a RR even with a boost controlloer you just keep the 1.1bar in a raise the boost with the BC it will be a lot safer Link to comment Share on other sites More sharing options...
merckx Posted May 11, 2007 Share Posted May 11, 2007 Yes, leave the restrictor ring in place and use the boost controller to raise it to 1.2 bar. If you remove the restrictor ring and you get more than 1.2 bar with the fmic, the boost controller cannot be used to reduce boost - only increase it. Link to comment Share on other sites More sharing options...
craig l Posted May 11, 2007 Author Share Posted May 11, 2007 thanks mate ill be doing away the rr once the bc fitted anyway just wondered if they d overboost much driving about 40miles to get job done Link to comment Share on other sites More sharing options...
Class One Posted May 11, 2007 Share Posted May 11, 2007 hey guys my jspecs bpu with a 1.1 bar rr im getting a fmic and apexi bc fitted sunday, i want to remove rr before i get it done so i can run 1.2bar when its done. problem is i need to drive about 40 miles to get the job done, so will the turbos overboost or it cause any other problems even if i take it easy driving through cheers I misread your post...sorry. Leave the RR in as said and use your boost controller to up it to 1.2bar. Without your RR you won't be able to keep boost down on its own. Boost controllers can only increase boost, not decrease it. Link to comment Share on other sites More sharing options...
craig l Posted May 11, 2007 Author Share Posted May 11, 2007 thanks guys ill leave rr in, for some reason didnt think itd boost to 1.2bar with a 1.1bar rr in lol Link to comment Share on other sites More sharing options...
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