Guest George89 Posted May 7, 2011 Share Posted May 7, 2011 I have just finished my engine conversion from NA-TT and the car is running 0-9 bar. It has a restrictor ring and a NA HKS hi-power silence exhaust which i understand is smaller then the TT ones. Whats the best way too get too 1.2 bar? if i take the restrictor ring out would it overboost? when my cat back is smaller then TT? or should i make a bigger whole in the ring? Link to comment Share on other sites More sharing options...
mr lover Posted May 7, 2011 Share Posted May 7, 2011 (edited) boost controller mate I use this one http://cgi.ebay.co.uk/GREDDY-PROFEC-B-SPEC-2-ELECTRONIC-BOOST-CONTROLLER-BLK-/290374894111?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item439bb1421f Edited May 7, 2011 by mr lover (see edit history) Link to comment Share on other sites More sharing options...
Guest George89 Posted May 7, 2011 Share Posted May 7, 2011 i will be getting one next month, but for the mean time could i just make my restrictor ring larger? anyone know what dimensions i need for 1.2/1.1 bar Link to comment Share on other sites More sharing options...
scotty71 Posted May 7, 2011 Share Posted May 7, 2011 there is no exact science, each car will be different - shave off a mm round and see what that does then reshave Link to comment Share on other sites More sharing options...
Guest George89 Posted May 7, 2011 Share Posted May 7, 2011 would a manual boost controller do it? temporary until i get the EBC next month Link to comment Share on other sites More sharing options...
Mario Posted May 7, 2011 Share Posted May 7, 2011 What gearbox are you running? Link to comment Share on other sites More sharing options...
shaky Posted May 7, 2011 Share Posted May 7, 2011 a manual boost controller will work fine,fit one 1st before you open you rr Link to comment Share on other sites More sharing options...
Guest George89 Posted May 7, 2011 Share Posted May 7, 2011 What gearbox are you running? auto TT - rebuilt by boost logic Link to comment Share on other sites More sharing options...
Guest George89 Posted May 7, 2011 Share Posted May 7, 2011 a manual boost controller will work fine,fit one 1st before you open you rr Ok i set my manual boost controller fully open and i don't see a difference, should i close it too see boost gains? Link to comment Share on other sites More sharing options...
mr lover Posted May 7, 2011 Share Posted May 7, 2011 dont change the size of the rr, boost controllers can only raise boost Link to comment Share on other sites More sharing options...
shaky Posted May 7, 2011 Share Posted May 7, 2011 If your boost controller is set to max then open your rr a bit at a time,some peeps run a 1 bar,others 1.2 bar,rr so it's trial and error,do not take your rr out Link to comment Share on other sites More sharing options...
Mario Posted May 7, 2011 Share Posted May 7, 2011 Oke so the gearbox will withstand the extra gains in bhp by going BPU, nice one George, try to get the diameters of your system exhaust sorted, 3'' straight through would be perfect for a bpu'd supra, when with a 3'' straight through the boost will run over 1,2 bar get an 1,2 bar restrictor ring in your system exhaust to prevent over boosting, Link to comment Share on other sites More sharing options...
Guest George89 Posted May 7, 2011 Share Posted May 7, 2011 Oke so the gearbox will withstand the extra gains in bhp by going BPU, nice one George, try to get the diameters of your system exhaust sorted, 3'' straight through would be perfect for a bpu'd supra, when with a 3'' straight through the boost will run over 1,2 bar get an 1,2 bar restrictor ring in your system exhaust to prevent over boosting, I just when out and turn my manual boost controller alway the way down (-) and the boost when up to 1.5 bar! it looks like its vise versa, + is less boost. So now i set it too 1.1 bar until i get a EBC Link to comment Share on other sites More sharing options...
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