| Although, it COULD very well be a good answer, I firmly believe that a single shared plenum is better then two 'balanced' plenums. Lets do an analogy; Would you rather drink 12ozs of beer out of a single cup,
or 2 ozs of beer out of a 6 straws? If all the cylinders can draw air from the same cavity, then flows and intake efficiency will increase. Now, imagine that 3 'straws' have more beer in them then the other 3 straws. In our engines design, only two intake runners are really seeing the balancing of the balance tube (5 and 6). If cylinders 1 and 2 need to balance, then potentially, cylinder 1 will have reversion in it's intake runner to balance out if it has 'too much beer/air'. Let's look at supras. There is no definitive reason that their I design engine is more efficient then our V design. Their intakes are similar to ours (plenum with long runners to the intake manifold). The difference is, they have one plenum with 6 runners. I got lot's to say on this, but it's just a whole bunch of talk and theory. I want to develop a high performance intake plenum. I think there is a market for it, and I think it will dramatically increase RWHP over an identically setup stock plenumed Z32.
Petz #3
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