The Apollo Intercooler is killing you.
I personally believe is that side mounts are the only way to go on a Z.
My personal belief is The Apollo design is absolutely the worst Intercooler on the market for the Z.
The reason I believe this is because the Z32 engine was designed with a CROSS FLOW intake manifold.......What this means is that the left turbo feeds the right side of the engine and right turbo feeds the left side of the engine.
The reason for this is that when the exhaust exits the one side it pushes the turbo that is feeding the opposite side that has the intake valve open to fill the cyl for the next compression stroke ECT ECT.....
The Apollo intercooler takes the air from one side and feeds the other. This is reversing the way the intake manifold was designed and makes it no longer a cross flow manifold.
This causes the engine to be less efficient and will cause the turbos to produce less boost. The second item is the profec B stepper motor works great for small turbos, But for larger turbos the stepper motor is too weak. In Japan they run 2 stepper motors on the Z32 with profec B's and greddy also sells a stronger stepper motor for the profec B as well. The waste gates on the Sport 700 are plenty strong. You can tighten the preload on the waste gates to get a bit more out of them, But the intercooler is hurting you more then anything. Hope that helps!
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