Ferrari 458 speciale intake technical question,....

[bjd7326]

Dear all,

On a 458 speciale intake there are three valves between left and right hand intake plenums... I guess they open at either idle or at high engine speeds to balance the intake pressures.... can anyone confirm,?

[stevieturbo]

Obviously without seeing, hard to say.

but sometimes valves can open a plenum to enlarge it, divert flow paths to make them shorter or longer etc

[anonymous-user]

HelmholtzResonance


By changing the relative volume and intake path lengths as engine speed and load changes, the switchable intake system maintains the highest pressure across the intake valve during the intake event, which results in the greatest possible intake massflow, an produces the highest BMEP at any given engine speed.


Pretty much all high performance N/A vehicles use the same, or similar, systems:



VarioRam