{USERNAME} wrote:
I've seen this and read about rear mounting turbo's a bit, In the article they don't really mention the lag, and it is a lot of piping, but apparently if it is done well it seems to work alright. They had a dyno graph in the article as well that made it look a little laggy.
No matter how hard you look a dyo graph will never tell you how laggy a turbo setup is unless you know exactly what you are looking for. Even a ramp rate of 650rpm/second is still too slow to show any shortfalls with the installation.