Originally Posted by
Snoopy
stock b16's will engage at ~5800. stock b18c1's will engage at 4400 and the secondaries in the intake manifold will open at 5800. these secondaries are NOT part of the vtec system.
the only multi stage vtec's are for fuel economy.
Huh? :dunno:
Stock B16's engage VTEC at ~5700
Stock B18c's engage VTEC at ~5800
In addition the B18c has secondary IM runners, opened by the IAB system at 6000.
No Honda DOHC VTEC engine engages at 4400, let alone before 5k.
Engaging the VTEC before the designated point will decrease power output.