NIS.26L Posted April 2, 2005 Share Posted April 2, 2005 I have bought a blitz dual sbc boost controller for my gtr r33 and im having trouble running 16 psi with a stock engine, stock turbos, POWER FC,3inch exhast. It bleeds down to 13psi and then go's back up to 16 and keeps going up and down right through all the gears you can actualy feel it surge as the boost levels change up and down,if you turn the gain down completly its not as bad but it dosent spool up fast at all and im losing about 25klw in the mid range. I have been told its the best boost controller on the market and if you try to run more than double the boost of the acuators (7psi im told) it wont control the boost up top but it seems to do it at any boost level Any info would be a great help Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/ Share on other sites More sharing options...
Blitz Posted April 2, 2005 Share Posted April 2, 2005 Who installed it? Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280052 Share on other sites More sharing options...
Guest two.06l Posted April 2, 2005 Share Posted April 2, 2005 I have bought a blitz dual sbc boost controller for my gtr r33 and im having trouble running 16 psi with a stock engine, stock turbos, POWER FC,3inch exhast. It bleeds down to 13psi and then go's back up to 16 and keeps going up and down right through all the gears you can actualy feel it surge as the boost levels change up and down,if you turn the gain down completly its not as bad but it dosent spool up fast at all and im losing about 25klw in the mid range. I have been told its the best boost controller on the market and if you try to run more than double the boost of the acuators (7psi im told) it wont control the boost up top but it seems to do it at any boost level Any info would be a great help do you have a copy of the english instructions? ill fax you a copy if required Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280177 Share on other sites More sharing options...
NIS.26L Posted April 3, 2005 Author Share Posted April 3, 2005 i have tried to get a copy of the english instructions of the net but have had no luck it would be great if you could fax them to me fax:- 0243692573 thanks Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280598 Share on other sites More sharing options...
Guest two.06l Posted April 3, 2005 Share Posted April 3, 2005 i have tried to get a copy of the english instructions of the net but have had no luck it would be great if you could fax them to me fax:- 0243692573 thanks yeah no problem will fax them tomm. Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280602 Share on other sites More sharing options...
NIS.26L Posted April 3, 2005 Author Share Posted April 3, 2005 Who installed it? I installed it then jim at CRD checked it quickly and said it was done right and couldnt work it out in the settings so im after the english insructions on how to set it,the thing has so many funtions it might take a while to sort out Im going back to CRD on tuesday for a tune and he will try to sort it out then Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280617 Share on other sites More sharing options...
NIS.26L Posted April 3, 2005 Author Share Posted April 3, 2005 yeah no problem will fax them tomm. sweet what time do you think Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280620 Share on other sites More sharing options...
321 GO Posted April 3, 2005 Share Posted April 3, 2005 If this problem occurs by fault of the boost controller setting it would normally point towards the gain (the speed at which the solenoid switches on and off to stabilise the boost level) being too low. If the boost was oscillating either side of your desired boost level at a very fast rate as opposed to a slow steady rate (easiest seen with an anologue boost gauge) then this points towards the gain being set too high. You need to find a happy medium with the gain control. If you are not able to get the boost curve flat with the gain contol then I would be checking the vacuum / boost hoses that run between your boost pressure source, solenoid and wastegate actuators. Have they all been replaced with new silicone hose? (good idea). Do they still have any factory fitted resrictors inside the hoses? (if so remove). If still using the factory hoses one may have a split in it that will only be visable when the hose expands under boost pressure. Make sure that the solenoid's mounting position is not too far away from the wastegate actuators and if all good then get your wastegate actuators vacuum tested to see if the diaphragms are holding the extra boost pressure that they are now seeing. (could be leaking with the extra pressure but still ok with the std boost pressure). Could also be a boost leak somewhere between your turbo and throttle body.. See how you go... Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280623 Share on other sites More sharing options...
NIS.26L Posted April 3, 2005 Author Share Posted April 3, 2005 If this problem occurs by fault of the boost controller setting it would normally point towards the gain (the speed at which the solenoid switches on and off to stabilise the boost level) being too low. If the boost was oscillating either side of your desired boost level at a very fast rate as opposed to a slow steady rate (easiest seen with an anologue boost gauge) then this points towards the gain being set too high. You need to find a happy medium with the gain control. If you are not able to get the boost curve flat with the gain contol then I would be checking the vacuum / boost hoses that run between your boost pressure source, solenoid and wastegate actuators. Have they all been replaced with new silicone hose? (good idea). Do they still have any factory fitted resrictors inside the hoses? (if so remove). If still using the factory hoses one may have a split in it that will only be visable when the hose expands under boost pressure. Make sure that the solenoid's mounting position is not too far away from the wastegate actuators and if all good then get your wastegate actuators vacuum tested to see if the diaphragms are holding the extra boost pressure that they are now seeing. (could be leaking with the extra pressure but still ok with the std boost pressure). See how you go... The vacume lines are all new the controller sits next to the stock one How can i test the diaphragms my self Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280628 Share on other sites More sharing options...
321 GO Posted April 3, 2005 Share Posted April 3, 2005 You need a 'Mighty Vac'. Its like a hand pump with a gauge on it that you would connect to the actuator. You pump pressure (the intended boost pressure level) into the actuator and see if it holds on the gauge. If it drops down then this could be your problem. Not the sort of tool that everyone has laying round the garage unfortunately... Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280639 Share on other sites More sharing options...
NIS.26L Posted April 3, 2005 Author Share Posted April 3, 2005 do you reckon i could make one with a boost gauge and some hose connected to the actuator then T in an orther line with a one way valve,pump it to 16psi and see if it holds it Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280648 Share on other sites More sharing options...
321 GO Posted April 3, 2005 Share Posted April 3, 2005 Possible but 16psi is actually pretty hard to pump into the actuator without the right kind of pump. If you can do it see how it goes for sure.. Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280653 Share on other sites More sharing options...
Guest two.06l Posted April 3, 2005 Share Posted April 3, 2005 Im going back to CRD on tuesday for a tune and he will try to sort it out then i will be at CRD on Tues. see you then if your still there...i will be in the silver r32 TWO.06L Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280654 Share on other sites More sharing options...
321 GO Posted April 3, 2005 Share Posted April 3, 2005 Gota run now. Will check back later. Good luck man.. Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280656 Share on other sites More sharing options...
NIS.26L Posted April 3, 2005 Author Share Posted April 3, 2005 i will be at CRD on Tues. see you then if your still there...i will be in the silver r32 TWO.06L Thanks mate i will be there at 8am untill its finished Can you bring a copy of english instructions for the boost controller? Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280661 Share on other sites More sharing options...
Guest two.06l Posted April 3, 2005 Share Posted April 3, 2005 Thanks mate i will be there at 8am untill its finished Can you bring a copy of english instructions for the boost controller? no probs will do Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1280701 Share on other sites More sharing options...
321 GO Posted April 6, 2005 Share Posted April 6, 2005 How did it go at CRD?? Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1285018 Share on other sites More sharing options...
NIS.26L Posted April 6, 2005 Author Share Posted April 6, 2005 How did it go at CRD?? i sorted the boost controller out my self its working a lot better now i put it closer to the turbos (swaped sides in the bay) so the hose coming from the accuators is a lot shorter but the boost hose is still over 1meter long, i reckon when i shorten the boost hose it will be better again and when i get the english instructions it will be perfect jim said its working good enough for the tune and should have my car sorted to pick up thursday so i will let you know how it went Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1286531 Share on other sites More sharing options...
321 GO Posted April 6, 2005 Share Posted April 6, 2005 nice Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1287027 Share on other sites More sharing options...
NIS.26L Posted April 9, 2005 Author Share Posted April 9, 2005 got my car back and it made 256klw at all 4 wheels (stock turbos,94mm exhast,power fc,blitz air filters) the tune is awsome it feels like a factory tune,the knock meter never go's over 30 im taking it to the creek on wednesday night i hope it runs mid 12s Link to comment https://www.sau.com.au/forums/topic/69126-boost-controller-issues/#findComment-1290583 Share on other sites More sharing options...
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