jza800 Posted May 29, 2014 Share Posted May 29, 2014 how much is to posible that the 1st turbo can boost? because i boost 0.8 - 0.9 bar on full boost, but many say that the boost should have a Little dump when the 2nd kick in about the 4000 rpm, but i dont fell that drop in boost when the 2nd turbo kick in.. is it posible that the 2nd turbo dont kick in, and the 1st turbo is boosting 0.8-0.9 bar by it self??? Quote Link to comment Share on other sites More sharing options...
Scott Posted May 29, 2014 Share Posted May 29, 2014 Yes that can happen if you have issues with the sequential system or if you have the system in parallel mode. Needs a bit of investigation, the bum dyno is normally best but you would need to know what it should feel like. Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 29, 2014 Author Share Posted May 29, 2014 i now that it haved worked, when i had a boostcontroller on the car, i could feel when the 2nd kicked in, and i could see the drop on my boost gauge. but after i removed it i dont see the drop on the gauge anymore.. but the car run fine and speed like crasy.. could i be because it goes so fast that i cant feel the drop.. it boost fine 0.8 - 0.9 bar with any problems.. Quote Link to comment Share on other sites More sharing options...
Scott Posted May 29, 2014 Share Posted May 29, 2014 Why not put the boost controller back on and not worry about it? Sounds like when it's been taken out something hasn't been connected correctly. At around 3.5-3.7k there should be a slight dip in pressure. You should be seeing around 0.6-0.8bar, then it should drop to around 0.5-0.7 and then you should feel a surge of power as the 2 turbo's put out a much cooler 0.8bar. Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 30, 2014 Author Share Posted May 30, 2014 (edited) i found the problem, the car runs in ttc, so i switched it back to sequential, i now i can feel the 2nd turbo kick in.. i now get 0.5 bar , and that drop to 0.4 when the 2nd turbo kick in, and raise the boost to 0.7 - 0.8 bar.. Edited May 30, 2014 by jza800 (see edit history) Quote Link to comment Share on other sites More sharing options...
Scott Posted May 30, 2014 Share Posted May 30, 2014 Sorted. Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 30, 2014 Author Share Posted May 30, 2014 yes, the only questions is, is 0.5 bar stock boost on the first turbo, or should i have more boost on the first??? Quote Link to comment Share on other sites More sharing options...
Nic Posted May 30, 2014 Share Posted May 30, 2014 yes, the only questions is, is 0.5 bar stock boost on the first turbo, or should i have more boost on the first??? 0.5bar on first turbo and 0.8bar peak boost is normal at stock boost levels. With BPU mods the first turbo will make around 0.7bar, 1.2bar peak and will really bring the car alive. Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 30, 2014 Author Share Posted May 30, 2014 how can i make the first turbo make 0.7 bar??? Quote Link to comment Share on other sites More sharing options...
Nic Posted May 30, 2014 Share Posted May 30, 2014 Click -> BPU Quote Link to comment Share on other sites More sharing options...
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