Would be the opposite. With the alert the high end boost is 50 to 60 psi. Most single turbos max out around 40 with no waste gate
The opposite? I was saying a single couldn't overcome the backpressure in the intake created by the compression entering the intake from the IVA's.....
I found this video helpful for understanding the ACERT engine, if anyone is interested. (1) Why Do People HATE Cat ACERT Engines? - Bing video
Since you obviously can’t find the information yourself and to keep others from believing your gibberish…. The high boost pressure that Acerts are known for is NOT a false reading. Those turbos actually make that kind of pressure. There is NO compression in the intake, there is no piston in the intake. Compression happens in a cylinder, no place else. The IVA’s (intake valve actuators) actually hold the intake valve open longer than what the camshaft can, this lets in more air and also reduces cylinder pressure in an effort to reduce NOX emissions. Instead of using EGR this is what Cat used. The twin turbos are fantastic, you have one that is a low pressure turbo and the other a high pressure turbo. You get great boost at all levels of rpm, whereas a single turbo cannot accomplish that without lag. Deleting the IVA’s is not a good idea. An Acert uses higher compression pistons than a 6NZ, 3406E etc. The head gaskets are the weak link when this is done.
