wilkorangerover Posted November 6, 2007 Share Posted November 6, 2007 iam now just 0.1 bar short of hitting 1.2 bar with my bpu completed...... should i make restrictor ring bigger??? Quote Link to comment Share on other sites More sharing options...
Jake Posted November 6, 2007 Share Posted November 6, 2007 No Quote Link to comment Share on other sites More sharing options...
jamesmark Posted November 6, 2007 Share Posted November 6, 2007 You could if you have not already got one, buy a boost controller to raise the boost. Quote Link to comment Share on other sites More sharing options...
wilkorangerover Posted November 6, 2007 Author Share Posted November 6, 2007 and then take of restrictor ring??? , ps running fmic too Quote Link to comment Share on other sites More sharing options...
jamesmark Posted November 6, 2007 Share Posted November 6, 2007 and then take of restrictor ring??? , ps running fmic too No. Keep the restrictor ring in place and use the BC to raise the boost. Up and down and all the way round.................... then flick. Quote Link to comment Share on other sites More sharing options...
wilkorangerover Posted November 6, 2007 Author Share Posted November 6, 2007 what bar are you running mate? Quote Link to comment Share on other sites More sharing options...
jamesmark Posted November 6, 2007 Share Posted November 6, 2007 what bar are you running mate? Zero, I sold my nightmare. However when I was BPU I only saw 0.9 bar and that was with a 1.2bar restrictor ring in place It depends on the car tbh, just because you take out the cats and add a restrictor ring it does mean you are alwaus going to hit 1.2 bar. Quote Link to comment Share on other sites More sharing options...
JODY T Posted November 6, 2007 Share Posted November 6, 2007 iam now just 0.1 bar short of hitting 1.2 bar with my bpu completed...... should i make restrictor ring bigger??? ide leave as it is..... when the weather gets colder itll prob boost to 1.2 anyway.... its also better to be on the safe side too... DOnt want those tubbies to go Quote Link to comment Share on other sites More sharing options...
Guru Posted November 7, 2007 Share Posted November 7, 2007 Don't touch the restrictor ring. The boost may depend on the engine and turbo's history. Quote Link to comment Share on other sites More sharing options...
Burna Posted November 7, 2007 Share Posted November 7, 2007 At what speed (in leptons of course) did you hit 1.1 bar? Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted November 7, 2007 Share Posted November 7, 2007 Turbo's condition dependent of course you won't actually see much power increase from 1.2 to 1.2 bar. In fact you may actually start to lose some power with older turbo's as you start to force them to work outside their efficiency range. Basically the further out of the turbo's efficiency range you get the more heat is generated. This heat is what kills things. My last car put down its best power at 1.15 bar. Power tailed off after that. The 1.2 bar figure is just a generalisation and won't be correct for all cars. Yeah the turbo's may be safe at that pressure but that doesn't mean they are optimimum at that pressure. If you really want to go for it get a boost controller and set it up on a dyno properly. Quote Link to comment Share on other sites More sharing options...
razza Posted November 7, 2007 Share Posted November 7, 2007 ide leave as it is..... when the weather gets colder itll prob boost to 1.2 anyway.... its also better to be on the safe side too... DOnt want those tubbies to go I'd second that, I'm going to change my 1.2 for a 1.0 ring as when cold I've seen it boost up to 1.3, which may have been the cause of my blow out. Not worth it boosting to those levels when you don't want it to, trust me. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted November 7, 2007 Share Posted November 7, 2007 If the temperature is low enough to make the car boost then the temperature is low enough to avoid detonation. A short spirited drive in cold temps isn't going to blow a turbo that wasn't already weak. Quote Link to comment Share on other sites More sharing options...
wilkorangerover Posted November 7, 2007 Author Share Posted November 7, 2007 50 - 100 mph Quote Link to comment Share on other sites More sharing options...
edge Posted November 7, 2007 Share Posted November 7, 2007 I average 1.1 but if i go out on a cool night i can see it creep upto 1.2 after a few seconds on wot but i have to be moving fairly quicky to get the cool air to do its job. Quote Link to comment Share on other sites More sharing options...
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