Rich Thomson
Registered User
I have been going through the IC system identifying the restrictions. If you port the raised top you can get 2.4" ID (more on this later) also the Outlet plenum is 2.4" opening while the intake opening is 3.69" x 1.44" which is 5.31" sq inches or equal to a 2.66" pipe. So I find several limiting areas in the IC system. The top and Outlet plenum opening are my focus here. Extrude Hone would save alot of grinding on the outlet plenum and gain about another 1/16" ID. So without major fabrication 2.4" ID is it for the IC system.
Anyone have ideas or mods they have done that would allow greater flow through the IC plenum.
Anyone have ideas or mods they have done that would allow greater flow through the IC plenum.
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