I have two routes that I'm going to be taking with the FD. If one doesn't work because of mechanical/temperature limitations, I'm still going to try this out. The way that I see it working best is basically 3 wastegates. The Smaller Turbo being internally gated as well as a rather large WG right at the merge coupler. The Larger Turbo being internally gated, but with a LARGE internal gate. The exhaust shall merge at a collector prior to the ST. The ST being internally gated to control boost to a preset level. Once the ST's internal gate is 100% duty cycle, the gate on the collector will begin to open to control boost yet again. This will happen rather low in the RPM range, I'd shoot for ~3k. After the other gate begins to open and the LT is spooling, it becomes a juggling act as to when the LT becomes "active" I think y-valve or a exhuast cut-out would need to be used. This is more of a sequential system though.
So, Exhaust flows from the block to the ST. From there, the DP if you will of the ST feeds the turbine of the LT. The external gate will alse feed the LT. The LT is internally gated and has ultimate control over the boost so it needs to be large.
I believe, after doing a bunch of research that the compound will generate too much boost. As a multiplier, I think it's might be a little much. Although, there's still a ton of research to do on the subject and it is something that I still believe has merrit. I think there are simpler ways to get the torque curve that I want. If anyone says V8 I will kill them
A super intercooler system isn't something that is too hard to accomplish. My setup works retardedly well and the core is somewhat small.
Aux injection is something else that can be employed although I'd rather not. We'll see in a few months when I really start humping on the FD.
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-The Angry Stig-
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