If needed, I can handle it for you, just let me know, what you need - I mean specification of valve (opening overpressure, diameters). Alcaid didnt you read my PM do you? All you need is there. When you start accelerating, the smaller turbo will first start working. The Smaller turbo will kick in faster than the bigger one. Sequential turbocharging takes away virtually all of the downsides of single turbocharging and supersedes a parallel setup, as the secondary turbo can be set to extremely high boost with the. This type of turbo system will have a small turbo and a larger one. So, if there was valve in compound setup, high pressure produced by HPT would blown stright thru LP compressor backwards.ītw. Sequential Turbo The sequential turbo encompasses two turbos instead of one like in the standard turbo system. On other hand, bypass valve is needed in case of sequential twinturbo setups, where small turbo compressor´s housing limits flow of biger one. It means high A/R compressor housing (better with anti-surge). ![]() In that way must be compressor housing of HPT able to flow huge amout of LPT. ![]() Typically, larger high-flow turbochargers are not as efficient at low rpms, resulting in lower intake manifold pressures under these conditions. MHI supplied the BMW N54 engine back in 2006 with a sequential turbo set-up, which was. Sequential turbos refer to a set-up in which the motor utilizes one turbocharger for lower engine speeds, and a second or both turbochargers at higher engine speeds. Note: imho (and based on experiences with my setup), for serious compound is no need for valve, because its compound - HP and LP turbo, so air is pre-pressed by LPT and than pressed to high amount of boost be HPT. turbo concept is usually two identically sized turbochargers). Also high pressure indicates, that HPT housing isnt big enough or boost requested from LPT isnt "low enough" for compound setup. High temperature between turbos might be solved by water injection. Our Two-Stage parallel turbo for diesel engines was an industry first when we released it in 2006.
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