white-gt Posted July 11, 2013 Share Posted July 11, 2013 Hi guys I just swapped over to a hybrid. Using my old hks actuator and r spec mbc. But it either shoots way past 1 bar or now won't pass 10psi since I swapped the mbc pipes round.I wound the actuator arm right out and the mbc out but don't seem to be getting anywhere.Can any one confirm which mbc pipes go where to b sure I done it correct. So actuator and Turbo inlet.Getting stressed now! Cheers lads Quote Link to post Share on other sites
jezza Posted July 11, 2013 Share Posted July 11, 2013 Turbo to bottom and actuator at the side port.Wind the mbc right in to determine actuator pressure. Adjust and set it to around 7psi. Then wind out the mbc gradually to increase the boost. Should work. Quote Link to post Share on other sites
white-gt Posted July 11, 2013 Author Share Posted July 11, 2013 thats how ive got it setup now, we had the pipes on the other way but it still wont boost. ive tried winding it right in and out.. if the mbc is set right out its less boost and screwed in is more boost, i checked this earlier. it just doesnt seem right. you dont think its to do with rotating the housing a bit? Quote Link to post Share on other sites
StuDoc 72 Posted July 12, 2013 Share Posted July 12, 2013 You need to shorten the acutator to increase boost. Do this continually untill you have whatever you are after so say 0.5 or 0.6 bar on full boost in 3rd gear. Then ditch the MBC they aren't worth a fuck and buy an EBC then go from there. Quote Link to post Share on other sites
MARC MOSS Posted July 12, 2013 Share Posted July 12, 2013 Just fuck the mbc off and loop the pipe from the compressor housing straight to the actuator and set boost pressure using the actuator... What supporting mods are u using? Quote Link to post Share on other sites
MARC MOSS Posted July 12, 2013 Share Posted July 12, 2013 Then get an ebc at some point soon, I ran mine looped on my hybrid for years set at 1.0bar and it made good power and worked well Quote Link to post Share on other sites
white-gt Posted July 12, 2013 Author Share Posted July 12, 2013 When the car was on the rollers the actuator didn't give boost well and when the MBC was fitted it made a big difference which is why its on in the first place.. If I wind the actuator right out can I not then set the boost from the MBC? Quote Link to post Share on other sites
jezza Posted July 12, 2013 Share Posted July 12, 2013 You will need some pressure on the actuator to hold the wastegate shut. The MBC allows the actuator to work under less pressure and thus make them more efficient to hold full boost. I wouldn't bin it as you can remember from the dyno it made a considerable difference holding full boost more stable. Quote Link to post Share on other sites
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