Quote:
Originally Posted by nikitopo
If an intake manifold could make a real difference we would have it already. If not by factory, then by a tuner the same way we have for exhaust manifolds (headers).
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The problem with manifolds is you can build one that works well in one part of the rev band but it sucks in other parts. So you end up with a compromise that works across the whole band. I used to own (well, still do) a 1995 Interga GS-R which had variable length intake runners that switched at 6200RPM (lots of people thought this was the VTEC switch point but it wasn't). So from 0 to 6200 it ran the long (dramatically longer) runners and 6200 - 8200 it ran short runners. It used vacuum to open 4 butterflies that sat in the middle of the manifold. Something like that would probably work well on our car and would probably solve the "dip". Problem is it adds weight and takes up more room. Something like this would probably cost as much as a turbo if it was an aftermarket thing.