Big Mark Posted October 24, 2007 Share Posted October 24, 2007 My boost gauge never goes past 0.9 bar. If I made the hole in my restrictor ring larger could I achieve 1.2? My FCD is not yet fitted (came in a box with the car) but I've only ever felt the fuel cut once at about 140 leptons, other than that never, Obviously I'd fit it before going for more boost. So will a bigger hole help or do I need boost controller? Quote Link to comment Share on other sites More sharing options...
Lee P Posted October 24, 2007 Share Posted October 24, 2007 Opening up the restrictor ring will give you more boost but no control. A boost controller will give you the ability to turn the boost back down again but will cost you. If you have J spec turbos I would be careful running 1.2 bar. Lee Quote Link to comment Share on other sites More sharing options...
colsoop Posted October 24, 2007 Share Posted October 24, 2007 Do you have the other mods in place to run that level of boost ? Quote Link to comment Share on other sites More sharing options...
adam bell Posted October 24, 2007 Share Posted October 24, 2007 never make your ring hole bigger you never know what might get in there Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted October 24, 2007 Share Posted October 24, 2007 If you are going to run 1.2bar i would have a BPU upgrade done by a reputable garage, you would not be wise to just open up the hole in the restrictor ring as it gives you no control, the risk of the turbos going pop will be much higher at 1.2bar, how healthy is your engine (how many miles, service history, intercooler condition) what about fuel pump when was it last changed, fuel filter the same Sorry to sound a bit negative but you really need to do these things properly if you want to avoid some of the risks, and yes I know how it feels to push a car too hard and loose an engine, its not funny or cheap:) Quote Link to comment Share on other sites More sharing options...
Big Mark Posted October 24, 2007 Author Share Posted October 24, 2007 Car has new intercooler, has done about 76k miles, the fuel Pump has been changed, full decat and exhaust system fitted. Reading the guide I thought that with a full BPU I should see 1.2 bar. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted October 24, 2007 Share Posted October 24, 2007 You will need to FCD to go past 1 bar, also a boost controller would be handy as you would not want to run 1.2 bar all the time (in the wet for example), spark plugs as well will be required and expect reliability to go down and fuel consumption to go up Quote Link to comment Share on other sites More sharing options...
jamesmark Posted October 24, 2007 Share Posted October 24, 2007 This car is my Ex car and it is full BPU, even his IK24 plugs in it. The RR is a 1.2 bar as I measured it up against a Chris Wilson 1 bar RR, and the hole is larger than a 1 bar RR. The only route Mark is a Boost Controller to up the boost to 1.2 bar. Is the joins in the decats sealed up as I always suffered from leaking joints. Quote Link to comment Share on other sites More sharing options...
Big Mark Posted October 24, 2007 Author Share Posted October 24, 2007 This car is my Ex car and it is full BPU, even his IK24 plugs in it. The RR is a 1.2 bar as I measured it up against a Chris Wilson 1 bar RR, and the hole is larger than a 1 bar RR. The only route Mark is a Boost Controller to up the boost to 1.2 bar. Is the joins in the decats sealed up as I always suffered from leaking joints. Hi Mark, The exhaust was too low for me to even get into my drive without scraping so I took it into RS Fabrications here in town and we spent 5 hourrs cutting the exhaust up and fitting it bit by bit. We ground all the faces flat. The exhaust is a perfect fit now. Serviced it this week too. So it has new IK24 plugs, new oil & filter and coolant. I'll treat it to a boost controller for xmas then. Quote Link to comment Share on other sites More sharing options...
jamesmark Posted October 24, 2007 Share Posted October 24, 2007 New Ik24's? Christ the ones that were in had about 300 miles on them if that. Hopefully the other thing Rs Fabrications has not put in some more bends? as that will create more back pressure too. Quote Link to comment Share on other sites More sharing options...
Big Mark Posted October 24, 2007 Author Share Posted October 24, 2007 Well I was servicing it anyway so I changed everything. Got them for £50 from here. No, we used what was already there and literally ground all the faces flat, and then put cuts into the straights just after some of the bends so we could align it perfectly. Quote Link to comment Share on other sites More sharing options...
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